CHATHAM SITE PRP GROUP RAP TRUST 1322 Scott Street, Suite 104 San Diego, CA 92106 (619)-546-8377 (619)-546-9980 FAX Email: [email protected]

Via Email December 22, 2015 Mr. Hossein Nassiri CALIFORNIA ENVIRONMENTAL PROTECTION AGENCY DEPARTMENT OF TOXIC SUBSTANCES CONTROL 5796 Corporate Ave Cypress, CA 90630-4732 Subject: Feasibility Evaluation Felicita Creek, Chatham Site, Escondido, California Dear Mr. Nassiri: This letter transmits the above-referenced document, which is being submitted to address the Department of Toxic Substances Control (DTSC) and San Diego Regional Water Quality Control Board (RWQCB) comments related to Felicita Creek, Felicita County Park, Escondido, California. More specifically, DTSC comments were provided on March 26, 2013 which conditionally approved the revised version of the 5-year Remedy Review Report (RRR) dated August 24, 2012. As part of the RRR conditional approval, DTSC requested further evaluation of Felicita Creek. Since this time, the Chatham Site PRP Group (the Group) has further evaluated the conditions at Felicita Creek with additional surface water sampling and conducting meetings with stakeholders including the DTSC, RWQCB, US Army Corps of Engineers, and County of San Diego. The overall sampling at Felicita Creek and results of stakeholders meetings are included within the enclosed document. If you have any questions or comments, feel free to contact either Mike Palmer or me. Sincerely, Chatham Site PRP Group RAP Trust

Edward D. Modiano Project Coordinator Enclosure cc (with enclosure):

Mr. Hossein Nassiri, DTSC (Via Email) Mr. Theo Johnson, DTSC (Via Email) Mr. Sean McClain, RWQCB (Via Email) Mr. Kevin Heaton, DEH (Via Email) Mr. Emad Yamut, DTSC (Via Email)

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HARGIS + ASSOCIATES, INC. HYDROGEOLOGY  ENGINEERING

La Jolla Gateway 9171 Towne Centre Drive, Suite 375 San Diego, CA 92122 Phone: 858.455.6500 Fax: 858.455.6533

December 21, 2015 VIA EMAIL Mr. Edward D. Modiano Project Coordinator CHATHAM SITE PRP GROUP RAP TRUST 1322 Scott Street, Suite 104 San Diego, CA 92106 Re:

Transmittal of Feasibility Evaluation Felicita Creek, Chatham Site, Escondido, California

Dear Mr. Modiano: Enclosed is the document titled: Feasibility Evaluation Felicita Creek Chatham Site Escondido, California If you have any questions or comments, please contact us. Sincerely, HARGIS + ASSOCIATES, INC.

Christopher G.A. Ross, PG 4594, CHG 221 Principal Hydrogeologist

James D. Schwall, PE CH5044 Principal Engineer

CGAR/JDS/ama Enclosure

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Other Offices: Folsom, CA Mesa, AZ Tucson, AZ

DECEMBER 21, 2015

FEASIBILITY EVALUATION FELICITA CREEK CHATHAM SITE ESCONDIDO, CALIFORNIA

PREPARED FOR: CHATHAM SITE PRP GROUP

HARGIS + ASSOCIATES, INC. HYDROGEOLOGY  ENGINEERING

HARGIS + ASSOCIATES, INC.

FEASIBILITY EVALUATION FELICITA CREEK CHATHAM SITE ESCONDIDO, CALIFORNIA

TABLE OF CONTENTS

Section

Page

ACRONYMS AND ABBREVIATIONS ........................................................................................... v EXECUTIVE SUMMARY ........................................................................................................ ES-1 1.0 INTRODUCTION......................................................................................................................... 1  1.1 PURPOSE AND SCOPE ........................................................................................................ 2  1.2 SITE BACKGROUND ............................................................................................................. 2  1.2.1 Location and Creek History ............................................................................................. 3  1.2.2 Groundwater and Surface Water Flow ........................................................................... 3  1.2.3 Groundwater and Surface Water Monitoring Results ..................................................... 4  1.2.3.1 Site-Related Contaminants ..................................................................................... 4  1.2.3.2 Non-Site Related Constituents and Compounds .................................................... 5  1.2.4 Conceptual Site Model Summary ................................................................................... 7  1.2.4.1 Groundwater to the North and Vicinity of Felicita County Park .............................. 7  1.2.4.2 Groundwater and Surface Water Interaction in Vicinity of Felicita County Park........................................................................................................................... 8  1.2.4.3 Felicita Creek ........................................................................................................... 9  1.3 SUMMARY OF RISK ASSESSMENTS – HUMAN HEALTH AND ECOLOGICAL RISK ...................................................................................................................................... 10  1.4 EVALUATION GOALS .......................................................................................................... 11  2.0 REMEDIAL TECHNOLOGIES FOR FELICITA CREEK .......................................................... 13  2.1 IDENTIFICATION AND SCREENING OF POTENTIAL TECHNOLOGIES ........................ 13  2.2 POTENTIAL TECHNOLOGIES DESCRIPTIONS................................................................ 14  2.3 SCREENING CRITERIA ....................................................................................................... 16  2.4 RETAINED REMEDIAL TECHNOLOGIES .......................................................................... 17  3.0 FELICITA CREEK REMEDIAL ALTERNATIVES ANALYSIS ................................................. 18  3.1 EVALUATION CRITERIA ..................................................................................................... 18  3.1.1 Protection of Human Health and the Environment ....................................................... 18  3.1.2 Effectiveness ................................................................................................................. 19  3.1.3 Implementability............................................................................................................. 19  3.1.4 Cost................................................................................................................................ 19  3.1.5 Water Resource Preservation ....................................................................................... 19  3.2 FELICITA CREEK REMEDIAL ALTERNATIVES................................................................. 20 

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TABLE OF CONTENTS (continued) Section

Page

3.2.1 Alternative FC1: Current Monitoring and Contingency Plan (Baseline) ...................... 20  3.2.1.1 Protection of Human Health and the Environment ............................................... 21  3.2.1.2 Effectiveness ......................................................................................................... 21  3.2.1.3 Implementability..................................................................................................... 22  3.2.1.4 Cost........................................................................................................................ 22  3.2.1.5 Water Resource Preservation ............................................................................... 23  3.2.2 Alternative FC2: Ex Situ Treatment – Enhanced Volatilization ................................... 23  3.2.2.1 Protection of Human Health and the Environment ............................................... 25  3.2.2.2 Effectiveness ......................................................................................................... 26  3.2.2.3 Implementability..................................................................................................... 26  3.2.2.4 Cost........................................................................................................................ 28  3.2.2.5 Water Resource Preservation ............................................................................... 28  3.2.3 Alternative FC3A: Hydraulic Containment with Treated Water to Surface Water....... 28  3.2.3.1 Protection of Human Health and the Environment ............................................... 29  3.2.3.2 Effectiveness ......................................................................................................... 29  3.2.3.3 Implementability..................................................................................................... 30  3.2.3.4 Cost........................................................................................................................ 31  3.2.3.5 Water Resource Preservation ............................................................................... 32  3.2.4 Alternative FC3B: Hydraulic Containment with Treated Water to Subsurface............ 32  3.2.4.1 Protection of Human Health and the Environment ............................................... 33  3.2.4.2 Effectiveness ......................................................................................................... 33  3.2.4.3 Implementability..................................................................................................... 33  3.2.4.4 Cost........................................................................................................................ 35  3.2.4.5 Water Resource Preservation ............................................................................... 35  3.2.5 Alternative FC3C: Hydraulic Containment with Non-Potable Reuse .......................... 35  3.2.5.1 Protection of Human Health and the Environment ............................................... 35  3.2.5.2 Effectiveness ......................................................................................................... 36  3.2.5.3 Implementability..................................................................................................... 36  3.2.5.4 Cost........................................................................................................................ 37  3.2.5.5 Water Resource Preservation ............................................................................... 37  4.0 COMPARISON OF ALTERNATIVES ....................................................................................... 38  5.0 REFERENCES .......................................................................................................................... 41 

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TABLE OF CONTENTS (continued)

TABLES Table 1

PREVALENT VOLATILE ORGANIC COMPOUNDS AND 1,4-DIOXANE IN GROUNDWATER IN FELICITA PARK

2

DETECTED INORGANIC CONSTITUENTS IN GROUNDWATER SAMPLES, FELICITA PARK

3

PREVALENT VOLATILE ORGANIC COMPOUNDS AND 1,4-DIOXANE IN SURFACE WATER

4

INORGANIC CONSTITUENTS IN SURFACE WATER

5

FELICITA CREEK REMEDIAL TECHNOLOGY SCREENING

6

SUMMARY OF RETAINED REMEDIAL ALTERNATIVES ANALYSIS

7

HYDRAULIC CONTAINMENT DISPOSAL OPTIONS ANALYSIS FOR ALTERNATIVE FC3

FIGURES Figure 1

Drawing Number SITE LOCATION

410-9526 A

2A

FELICITA CREEK LOCATION

410-9538 A

2B

WATER LEVEL ELEVATIONS, WATER TABLE WELLS, OCTOBER 2015

220-2306 A

3

TRICHLOROETHYLENE, WATER TABLE WELLS, OCTOBER 2015

210-4674 A

4

TRICHLOROETHYLENE, DEEP WELLS, OCTOBER 2015

210-4675 A

5

TRICHLOROETHYLENE, FELICITA CREEK SAMPLING LOCATIONS, FELICITA COUNTY PARK

210-4677 A

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TABLE OF CONTENTS (continued)

FIGURES (continued) Figure

Drawing Number

6

CONCEPTUAL CROSS SECTION ALONG FELICITA CREEK

7

TRICHLOROETHYLENE IN FELICITA CREEK SURFACE WATER SAMPLING LOCATIONS FC-4 AND FC-7, AND FLOWRATE AT FC-7, OCTOBER 1994 TO OCTOBER 2015

--

TRICHLOROETHYLENE CONCENTRATIONS, MONITOR WELLS MW-46 AND MW-69, AUGUST 1994 TO OCTOBER 2015

--

TRICHLOROETHYLENE CONCENTRATIONS, MONITOR WELLS MW-58 AND MW-66, SEPTEMBER 1999 TO OCTOBER 2015

--

8

9

810-2736

10A

CONCEPTUAL DESIGN EX SITU TREATMENT ALTERNATIVES

810-2740 A

10B

CONCEPTUAL SITE PLACEMENT OF EX SITU TREATMENT ALTERNATIVES

410-9543 A

CONCEPTUAL DESIGN HYDRAULIC CONTAINMENT ALTERNATIVES

560-0359 A

CONCEPTUAL SITE PLACEMENT OF HYDRAULIC CONTAINMENT ALTERNATIVES

410-9542 A

11A

11B

APPENDICES Appendix A

LABORATORY ANALYTICAL RESULTS, MAY 2015

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ACRONYMS AND ABBREVIATIONS

CD CEQA CSM DTSC EHD EPA ERAS GRS FCP H+A HSA LGAC MCLs MCP ml MPN NPDES PRP RAP RI RRR RWQCB SWRBTLs TCE TDS the Group the Site the Yard USACE VOCs WDR

Consent Decree California Environmental Quality Act Conceptual Site Model California Environmental Protection Agency, Department of Toxic Substances Control Environmental Health Decisions U.S. Environmental Protection Agency Ecological Risk Assessment Section Groundwater remediation system Felicita County Park Hargis + Associates, Inc. Felicita Hydrologic Subarea Liquid phase granular activated carbon Maximum Contaminant Levels Monitoring and Contingency Plan Milliliter Most probable number National Pollutant Discharge Elimination System Chatham Site Potentially Responsible Parties Remedial Action Plan Remedial Investigation Remedy Review Report Regional Water Quality Control Board Surface water risk-based trigger levels Trichloroethylene Total dissolved solids PRP Group Chatham Site located at 2257 Bernardo Avenue, Escondido, California The Chatham Yard United States Army Corps of Engineers Volatile organic compounds General Waste Discharge Requirements for Discharges of Treated Groundwater from Volatile Organic Compound Cleanup Sites to Land in the San Diego Region

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FEASIBILITY EVALUATION FELICITA CREEK CHATHAM SITE ESCONDIDO, CALIFORNIA

EXECUTIVE SUMMARY

This Feasibility Evaluation has been prepared by Hargis + Associates, Inc., on behalf of the Chatham Site Potentially Responsible Parties (PRP) Group (the Group) for the Chatham Site1 located at 2257 Bernardo Avenue, Escondido, California (Figure ES-1). The Group continues to successfully implement the selected groundwater remedy described in the California Environmental Protection Agency, Department of Toxic Substances Control (DTSC)-approved Remedial Action Plan in accordance with the Consent Decree (CD) between the DTSC and the Group entered by the federal district court on February 5, 1999. Per the CD, Remedy Review Reports (RRR) are submitted to DTSC every 5-years with the most recent RRR originally being submitted on June 29, 2010. Revised versions of the RRR, which addressed agency comments, were submitted to DTSC on September 29, 2011 and August 24, 2012. Conditional approval of the RRR was provided by DTSC in a letter dated March 26, 2013, in which one of the conditions of approval was to further evaluate site related contaminants detected in Felicita Creek. With this understanding, this Feasibility Evaluation assesses remedial alternatives to manage flow of site related contaminants in groundwater to Felicita Creek.

The Site is within the Felicita Hydrologic Subarea (HSA), a south-sloping elongate basin drained by Felicita Creek. The upper reaches of Felicita Creek, including the West and East Forks are located within the site area and converge in the northern portion of Felicita Creek (Figure ES-2). 1

The “Site” shall include the areal extent of any known or suspected release or threatened release of a hazardous substance, pollutant, or contaminant originating at the Yard (as defined herein). The Site includes but is not limited to a 5-acre portion of real property commonly known as the Chatham Brothers Barrel Yard located at 2257 Bernardo Avenue (hereinafter referred to as the “Yard”), Escondido, California, which is part of a 35-acre parcel (the “Property”), as well as property located at 1261 Gamble Lane (the “Gamble Lane Property”), Escondido, California.

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EXECUTIVE SUMMARY (continued) The primary Site-related contaminants in groundwater and surface water at the Site consist of volatile organic compounds (VOCs). Both the Group and DTSC have conducted risk analyses of Felicita Creek and concluded that Site-related contaminants levels within Felicita Creek are protective of human health and the environment.

In the vicinity of the Yard, pumping of the groundwater remediation system extraction wells has created an effective capture zone, restricting contaminant migration downgradient. To the south of the Yard, VOCs dissolved in groundwater continue to dissipate through the physical process of natural attenuation (Figures ES-3 and ES-4).

Groundwater data suggest that the lower

volume, higher concentration VOC mass in the deep zone contributes to the VOC mass in the shallow zone through localized upward gradients primarily in Felicita County Park. Overall the rate of VOC mass contribution from deeper to shallow groundwater is constrained by the lower bulk hydraulic conductivity of the deep zone.

Surface water in Felicita Creek derives from two major sources: 1) overland flow and tributary streams following rainfall events, and 2) groundwater flow into the channel where the channel is incised to the water table (Figure ES-5). Site-related VOCs are not present in overland flow of surface water, so Site-related VOC contributions to Felicita Creek are from groundwater flow into the creek channel.

From just downstream of the Felicita Road culvert, groundwater

containing dissolved VOCs is intercepted by the Creek channel incised to below the water table (Figures ES-5 and ES-6).

Aside from VOCs, however, Felicita Creek is impaired with respect to its designated beneficial uses due to non-Site related constituents. Non-Site related inorganic water quality constituents were consistently detected in surface water samples collected in 2013 through 2015, and some exceeded Basin Plan water quality objectives for one or more surface water samples collected. In addition, Felicita Creek has been designated as an “impaired” water body under Section 303(d) of the Clean Water Act. Felicita Creek is on the 303(d) list since Felicita Creek fails to meet Basin Plan water quality objectives, due to adverse impacts by non-Site related pollutants, total dissolved solids, and aluminum.

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EXECUTIVE SUMMARY (continued)

Potential remedial technologies and a screening of remedial technologies were presented and discussed in a technical meeting with DTSC, Regional Water Quality Control Board (RWQCB), and representatives of the Group on April 20, 2015. Based on the initial technical meeting, two additional technical meetings were held on August 19, 2015 with RWQCB, DTSC, United States Army Corps of Engineers, and representatives of the Group and on August 25, 2015 with RWQCB, County of San Diego, and representatives of the Group to discuss remedial technology implementability issues to assist in the development of the Feasibility Evaluation.

Remedial technologies were screened and the retained technologies were assembled into the following remedial alternatives: FC1: Current Monitoring and Contingency Plan; FC2: Ex situ surface water treatment within Felicita Creek via installation of structures; and FC3: Hydraulic containment (pump and treat with liquid phase granular activated carbon adsorption treatment) with three treated groundwater end use options – FC3A treated water to Felicita Creek, FC3B treated water to subsurface; and FC3C treated water as non-potable reuse.

Each remedial alternative was evaluated based on the following evaluation criteria: protection of human health and the environment; effectiveness; implementability; cost; and preservation of the water resource. The remedial alternatives were compared based on their respective performance in achieving the evaluation criteria (Table ES-1). The remedial alternatives are protective of human health and the environment. Based on this analysis, remedial alternatives FC-2 and FC-3 provide slight to moderate reduction of Site-related VOCs in Felicita Creek. It is equally clear remedial alternatives FC-2 and FC-3 are complex processes to implement and highly disruptive. FC-1 is the preferred alternative. It is protective of human health and the environment, it is implementable while the other alternatives may not be due to permitting limitation. FC-1 is least disruptive and preserves the water resource.

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ES-3

TABLE ES-1 FELICITA CREEK FEASIBILITY EVALUATION SUMMARY

ALTERNATIVE

ALTERNATIVE DESCRIPTION

PROTECTION OF HUMAN HEALTH AND THE ENVIRONMENT

EFFECTIVENESS

Current concentrations detected in VOC reduction rate in Felicita Creek have not exceeded Felicita Creek limited by any of the SWRBTLs and risk natural processes. VOC analyses for Felicita Creek concluded reduction not achieved until that Site-related contaminants within creek water reaches Felicita Creek are protective of southern portion of park. human health and the environment

FC1

Monitor in accordance with MCP

FC2

In–Situ Treatment – Enhanced volatilization of VOCs through installation of structures in Felicita Creek

Same as FC1

Some improvement compared to FC1 (less than 50%)

IMPLEMENTABILITY

RELATIVE COST

WATER RESOURCE PRESERVATION

Currently being implemented

There is no additional cost associated with this alternative

Preserves the flow in Felicita Creek

Difficult to implement due to difficult permitting process

Moderate to high

Preserves flow in Felicita Creek

Felicita Creek Hydraulic Containment - consisting of extraction wells and groundwater treatment with Liquid Phase Carbon Adsorption (see below for treated water end use options) A: Stream Disposal - Return VOC-treated groundwater to Felicita Creek to maintain stream flow

FC3

B: Subsurface Disposal Return VOC-treated groundwater to subsurface by construction of infiltration trench structure(s) to recharge treated water

C: Non-potable end use - Irrigation Reuse

Same as FC1

Potentially effective for capturing and treating area along Felicita Creek

Cannot be implemented due to the natural inorganic water quality/permit requirements

Same as FC1

Similar to FC3A except potential for short circuiting between infiltration and extraction

Difficult to implement due to difficult access requirements and potentially difficult permitting process

Moderate to high

Same as FC1

Similar to FC3A except Can not be implemented shorter duration of due to lack of irrigation operation due to changes in demand in park seasonal demand

Moderate to high

MCP Monitoring and Contingency Plan VOCs Volatile organic compounds SWRBTLs Surface Water Risk-Based Tigger Levels

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Moderate to high

Preserves flow in Felicita Creek Preserves Felicita Creek flow with potential small loss of flow in the creek if increased evapotranspiration in vicinity of trench(es) Potential moderate loss of extracted water due to evapotranspiration in irrigated areas resulting in some loss of flow in Felicita Creek

FIGURE ES-1. SITE LOCATION

ES-2

FIGURE ES-3

FIGURE ES-4

FIGURE 6. FIGURE ES-5.

FIGURE ES-6.

HARGIS + ASSOCIATES, INC.

FEASIBILITY EVALUATION FELICITA CREEK CHATHAM SITE ESCONDIDO, CALIFORNIA

1.0 INTRODUCTION

This document has been prepared by Hargis + Associates, Inc. (H+A), on behalf of the Chatham Site Potentially Responsible Parties (PRP) Group (the Group) for the Chatham Site1 located at 2257 Bernardo Avenue, Escondido, California (the Site) (Figure 1).

The Group continues to

successfully implement the selected groundwater remedy described in the California Environmental Protection Agency, Department of Toxic Substances Control (DTSC)-approved Remedial Action Plan (RAP) (DTSC, 1998) in accordance with the Consent Decree (CD) between the DTSC and the Group entered by the federal district court on February 5, 1999. In accordance with the CD, Remedy Review Reports (RRR) are submitted to DTSC every 5-years with the most recent RRR originally being submitted on June 29, 2010. Revised versions of the RRR, which addressed agency comments, were submitted to DTSC on September 29, 2011 and August 24, 2012. The primary purpose for the RRR is to demonstrate the effectiveness of the groundwater remedy. Conditional approval of the RRR was provided by DTSC in a letter dated March 26, 2013, in which one of the conditions of approval was to further evaluate site related contaminants detected in Felicita Creek.

With this understanding, this Feasibility Evaluation

assesses remedial alternatives to manage flow of site related contaminants in groundwater to Felicita Creek.

1

The “Site” shall include the areal extent of any known or suspected release or threatened release of a hazardous substance, pollutant, or contaminant originating at the Yard (as defined herein). The Site includes but is not limited to a 5-acre portion of real property commonly known as the Chatham Brothers Barrel Yard located at 2257 Bernardo Avenue (hereinafter referred to as the “Yard”), Escondido, California, which is part of a 35-acre parcel (the “Property”), as well as property located at 1261 Gamble Lane (the “Gamble Lane Property”), Escondido, California.

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1.1 PURPOSE AND SCOPE

This Feasibility Evaluation assesses remedial alternatives to manage the flow of Site-related contaminants to Felicita Creek in response to a letter from the DTSC dated September 24, 2014, regarding the April 2014 Annual Monitoring Submittal and Conceptual Site Model (CSM) Update (H+A, 2014a; DTSC, 2014b).

More specifically, DTSC General Comment #3

recommends that “the PRP Group evaluate the contaminant fate and transport mechanisms and hydrogeology of site related contaminants discharging into Felicita Creek.

The evaluation

should address mechanisms which would significantly reduce or stop the flow of site related contaminants to the creek.” The evaluation of contaminant fate and transport mechanisms including groundwater flow in the vicinity of the Site and Felicita Creek were presented in previous documents including the most recent CSM Update (H+A, 2015b).

This Feasibility Evaluation presents the following: 

Introduction



Site Background



Summary of Previous Risk Assessment



Evaluation Goals



Screening of Remedial Technologies



Remedial Alternatives Analysis



Comparison of Remedial Alternatives

1.2 SITE BACKGROUND

The following sections summarize the general background and elements of the CSM that pertain to groundwater and surface water flow and quality in the vicinity of Felicita Creek.

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1.2.1 Location and Creek History The Site is within the Felicita Hydrologic Subarea (HSA), a south-sloping elongate basin drained by Felicita Creek.

Granitic rock underlies the Felicita HSA, the bulk of it being fractured

bedrock, but the uppermost portion is gradually weathered to decomposed granitic rock at various depths.

The Chatham Yard is located near the upper reaches of both the West Fork and a branch of the East Fork of Felicita Creek. The East and West Forks converge in the northern portion of Felicita County Park (FCP) (Figure 2A).

The natural channels of Felicita Creek have been altered over time by the placement of culverts, allowing streets to cross the creek; by channelization in the upper stretch of the West Fork of the Creek west of Bernardo Avenue and portions of the upper East Fork west of Felicita Road; and by the placement of a small earth-fill dam on the East Fork of the creek at Felicita Road, as well as the placement of a series of stonework check-dams within FCP. The stonework dams were placed in the 1930s, and the earth-fill dam predates the 1950s.

1.2.2 Groundwater and Surface Water Flow Groundwater flows through fractures in bedrock at depth, and flows through the more porous decomposed bedrock nearer to land surface, under the influence of the regional hydraulic gradient (H+A, 1996). Groundwater data indicate that subsurface conditions, combined with topography and significant narrowing of the Valley to the south, results in convergence of groundwater flow toward the center of the basin formed by Felicita Creek (Figure 2A).

Surface water occurs primarily in the East and West Forks of Felicita Creek, as well as its main channel downstream of the confluence of the East and West Forks in FCP (Figures 2A and 2B). Groundwater appears to be the source of base flow to Felicita Creek in the northern portion of FCP, where flow becomes perennial in the East Fork of the Creek. Stretches of the West Fork of Felicita Creek appear to be perennial, but for much of the year the West Fork does not persist downstream as surface flow to the confluence with the East Fork. Several ephemeral streams are tributaries to Felicita Creek, flowing only when there is seasonal surface runoff (H+A, 1996).

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Surface water flow is typically highest in March/April after the rainy season and is lowest in September/October during the dry season when the flow in Felicita Creek is principally base flow from groundwater.

1.2.3 Groundwater and Surface Water Monitoring Results Groundwater and surface water have been monitored for Site related contaminants and other non-Site related constituents and compounds.

1.2.3.1 Site-Related Contaminants The primary Site-related contaminants exceeding drinking water Maximum Contaminant Levels (MCLs) in groundwater and surface water at the Site consist of volatile organic compounds (VOCs). The lateral and vertical extent of VOC groundwater contamination is well defined based on the sampling of 60 key wells in the monitoring program, including shallow monitor wells, deep monitor wells, shallow and deep regional wells, and extraction wells.

From

groundwater VOC data collected over the last 20 years, the lateral and vertical extent of groundwater contamination is depicted as shallow and deep plumes, with changes tracked over time (Figures 3 and 4). Details of VOC distribution in groundwater have been provided as part of the groundwater monitoring program, most recently for October 2015 (H+A, 2015c). Within the geographical area addressed in this Feasibility Evaluation, specifically FCP, recent VOC analytical data have been summarized (Table 1).

An expanded surface water sampling program has been implemented on a semiannual basis from April 2013 through October 2015 (H+A, 2015c). Recent VOC analytical data for surface water have been summarized (Table 3). VOCs were not detected in surface water samples collected from West Fork sampling locations in April 2015 or October 2015. These results are consistent with historic analytical results of surface water samples collected by the Group from the West Fork of Felicita Creek. VOCs detected in surface water samples collected from the East Fork and main channel of Felicita Creek in October 2015 remained within historic ranges. Using trichloroethylene (TCE) as an indicator compound due to its prevalence, concentrations decrease downstream from the vicinity of surface water sampling location FC-4 until reaching

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the vicinity of surface water sampling locations FC-7 and FC-8A, where the TCE concentrations were near or below the detection limit (Figure 5).

Results of historic and recent sampling confirm that surface water flow in Felicita Creek is fed by groundwater, and it is expected that surface water in Felicita Creek will respond over time to reductions in VOC concentrations in shallow groundwater as natural attenuation of the groundwater plume progresses near the creek (H+A, 2015b).

1.2.3.2 Non-Site Related Constituents and Compounds Inorganic water quality of shallow and deep groundwater was characterized as part of the Remedial Investigation (RI) (H+A, 1996). Initial sampling of monitor wells installed during the RI included analysis of inorganic constituents, including chloride, nitrate, sulfate, total dissolved solids (TDS), and selected metals. Based on sampling of upgradient and other wells outside the area of VOC impact to groundwater, the RI found that:

Chloride, sulfate, [TDS], and nitrate concentrations detected in the background wells exceeded federal and/or state Maximum Contaminant Levels (MCLs) . . .

Based on the similarity of the concentration range for chloride, sulfate, TDS, and nitrate between background wells and other wells, these compounds appear to be representative of regional conditions and are not related to historical operations conducted at the site. (H+A, 1996)

In May 2015, additional groundwater sampling was conducted using monitor wells located in the vicinity of Felicita Creek within FCP, in order to update and expand the characterization of inorganic water quality near the creek. Shallow monitor wells MW-53, MW-54 and MW-58, as well as deep monitor wells MW-66 and MW-70, were sampled on May 21, 2015 (Figures 3 and 4).

Groundwater samples were analyzed for common ions, TDS, surfactants, metals

including mercury and hexavalent chromium, chlorinated phenolics, pesticides, polychlorinated biphenyls, semi-volatile organic compounds, cyanide, hardness, sodium, and hydrogen sulfide. Most of these analytes were not detected (Appendix A). Concentrations of detected analytes have been provided, and compared with applicable regulatory standards for surface water

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(Table 2). Concentrations of chloride, nitrate, sulfate and TDS were generally comparable to those in RI samples, and also exceeded regulatory levels, specifically Basin Plan Water Quality Objectives, in some or all sampled wells (Regional Water Quality Control Board [RWQCB], 2012). Other constituents exceeding regulatory standards in 2015 were iron, manganese, and total nitrogen, which exceeded instantaneous maximum effluent limitations under the San Diego National Pollutant Discharge Elimination System (NPDES) permit (Table 2).

Inorganic surface water quality was characterized as part of the RI (H+A, 1996). Analysis of surface water samples collected from surface water sampling location FC-4 in 1994 included analysis of general minerals and coliform bacteria. The RI found that:

Results of general mineral analyses indicate that surface water is a sodium-calcium-sulfate water type with a TDS content of 1,290 mg/l [milligrams per liter], which is consistent with general mineral data obtained from groundwater sampling of monitor wells in the vicinity of the site. (H+A, 1996)

The naturally-occurring inorganic water quality constituents TDS, chloride, sulfate, nitrate and turbidity were detected in surface water samples collected in October 2015 (Table 4). Concentrations of these constituents at surface water sampling location FC-4 were comparable to those detected in 1994 and, with the exception of nitrate, exceeded Basin Plan water quality objectives for one or both surface water samples collected in 2015 (RWQCB, 2012). These results indicate that Felicita Creek is impaired with respect to its designated beneficial uses due to naturally occurring, and therefore non-Site related, constituents.

Total coliform bacteria were detected in surface water samples collected at surface water sampling locations FC-4 and FC-10 in April 2015, at populations of 1,600 most probable number (MPN)/100 milliliters (ml) (Table 4). This exceeds the water quality standard of 200 MPN/100ml specified for fecal coliform bacteria, and was higher than the detection of 130 MPN/100ml at surface water sampling location FC-4 in 1994. Although the Basin Plan requires 5 sampling events for fecal coliform within 30 days to establish a reliable bacterial population (RWQCB, 2012), this result is consistent with previous sampling results and with the interpretation that Felicita Creek may be impaired with respect to its designated beneficial uses

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due to high bacterial levels. The presence of coliform bacteria in Felicita Creek is a result of animal and human activity, and is not Site related.

1.2.4 Conceptual Site Model Summary As stated previously, the primary contaminants in groundwater at the Site consist of VOCs with the lateral and vertical extent being well defined based on the ongoing monitoring program. The following sections provide an overview of the CSM as it pertains to: groundwater to the north and in the vicinity of FCP; groundwater and surface water interaction in the vicinity of FCP; and Felicita Creek.

1.2.4.1 Groundwater to the North and Vicinity of Felicita County Park In the vicinity of the Yard, pumping of the groundwater remediation system (GRS) extraction wells has created an effective capture zone in this area, restricting contaminant migration downgradient. Since implementation of the remedy, concentration decreases to near or below detection limits in shallow monitor wells between the Yard and Cimarron Terrace demonstrate the separation of the shallow VOC plume (H+A, 2015b). Since implementation of the remedy, concentration decreases to near or below detection limits in deep monitor wells between the Yard and Hamilton Lane, as well as the order of magnitude decrease in VOC concentrations in axial deep monitor well MW-67, demonstrate the separation of the deep VOC plume by operation of the GRS for containment.

To the south of the Yard, downgradient of the capture zone, as groundwater with dissolved VOCs slowly migrates south, the VOCs continue to dissipate through physical processes of natural attenuation. South of Hamilton Lane, the shallow and deep plumes consist of low and generally decreasing concentrations of dissolved VOCs extending to the south end of FCP (Figures 3 and 4). Migration of the shallow and deep groundwater plumes is generally narrow and controlled by Site topography, geologic features, and groundwater flow. Groundwater data suggest that the lower volume, higher concentration VOC mass in the deep zone contributes to the VOC mass in the shallow zone through localized upward gradients primarily in the northern portion of FCP and the vicinity of monitor wells MW-54 and MW-70 in the southern portion of

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FCP. But overall the rate of VOC mass contribution from deeper to shallow groundwater is constrained by the lower bulk hydraulic conductivity of the deep zone.

1.2.4.2 Groundwater and Surface Water Interaction in Vicinity of Felicita County Park In the vicinity of FCP, an evaluation of the water quality of Felicita Creek and its relationship to local groundwater has been provided (H+A, 2015a).

The results of this evaluation are

summarized as follows: 

In the northern portion of FCP, Felicita Creek is a gaining stream.



Groundwater is the primary source of water to the stream, especially during the dry season.



The groundwater daylighting into the Felicita Creek channel moves through decomposed granitic rock rather than through discrete fractures in bedrock (Figure 6).



Understanding that this is a water table system in decomposed and fractured bedrock, it is likely that a proportion of groundwater flowing into the Felicita Creek channel is via upward vertical flow from the deep VOC plume, through decomposed granitic rock, between surface water sampling locations FC-11 and FC-10.



Between surface water sampling locations FC-10 and FC-7, TCE concentrations decline to below drinking water standards.



VOCs in surface water do not persist beyond the southern boundary of FCP, which is itself over a mile from the Creek’s outflow to Lake Hodges (Figures 3 through 5).



Surface water sampling in 2013 through 2015 was representative of low flow or base flow conditions.

From both groundwater and surface water data, it appears TCE concentrations detected in samples collected at and near surface water sampling location FC-4 are responsive to variations in local conditions, including the water table elevation, temperature, depth of water in the creek channel, and velocity of surface water flow.

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An evaluation of water quality trends of groundwater and surface water in the vicinity of Felicita Creek has been provided with respect to VOCs (H+A, 2015a) (Figures 7 through 9). The Group has presented water quality data indicating that, as a result of the remedy at the Chatham Yard, the mass of the shallow VOC plume south of Hamilton Lane has decreased by approximately 90 percent (H+A, 2015b).

The shallow TCE plume continues to contract, and because

groundwater in this area is subject to an upward hydraulic gradient into Felicita Creek, future decreases in concentration in this area are anticipated to be reflected in nearby surface water sampling location FC-4 (Figure 7).

1.2.4.3 Felicita Creek Surface water in Felicita Creek derives from two major sources: 1) overland flow and tributary streams following rainfall events, and 2) groundwater flow into the channel where the channel is incised to the water table (Figure 6). Site-related VOCs are not present in overland flow of surface water, so Site-related VOC contributions to Felicita Creek are from groundwater flow into the creek channel. During parts of the year when overland flow contributes to the creek, any VOCs entering the channel via groundwater are mixed, reducing the detected concentrations of VOCs in surface water.

From just downstream of the Felicita Road culvert, groundwater containing dissolved VOCs is intercepted by the creek channel incised to below the water table (Figures 5 and 6). As water flows downstream from near surface water sampling location FC-11 to surface water sampling location FC-14, additional VOC-impacted water flows into the channel from shallow groundwater, with some flow from directly beneath the channel more representative of deep groundwater, while some proportion of VOCs volatilizes into the atmosphere. From surface water sampling location FC-14 to surface water sampling location FC-5, volatilization becomes a more dominant factor than groundwater flow into the creek, due in part to the boulders in the channel which force turbulent flow. From surface water sampling location FC-5 downstream to surface water sampling location FC-10, VOC-impacted groundwater flow into the channel dominates over volatilization, generally increasing concentrations.

As surface water flows

downstream of surface water sampling location FC-10, the factors contributing to volatilization

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become relatively more dominant, and VOC concentrations decrease, ultimately to below detection limits as at surface water sampling locations FC-7 and FC-8A (Figure 5).

Aside from VOCs, however, Felicita Creek is impaired with respect to its designated beneficial uses due to naturally occurring, and therefore non-Site related, constituents (H+A, 1996 and 2015b). Non-Site related inorganic water quality constituents were consistently detected in surface water samples collected in 2013 through 2015 (Table 4), and some exceeded Basin Plan water quality objectives for one or more surface water samples collected. In addition, Felicita Creek has been designated as an “impaired” water body under Section 303(d) of the Clean Water Act (U.S. Environmental Protection Agency [EPA], 2011). Felicita Creek is on the 303(d) list since Felicita Creek fails to meet Basin Plan water quality objectives, due to adverse impacts by non-Site related pollutants, TDS and aluminum (EPA, 2011).

1.3 SUMMARY OF RISK ASSESSMENTS – HUMAN HEALTH AND ECOLOGICAL RISK

Both the Group and DTSC have conducted risk analyses of Felicita Creek and concluded that Site-related contaminant levels within Felicita Creek are protective of human health and the environment (H+A, 2012; DTSC, 2014a and 2014c).

As part of the original Human Health Risk Assessment and Screening Ecological Evaluation Report (Environ, 1996), surface water risk-based trigger levels (SWRBTLs) were developed for the Site. The original SWRBTLs values were evaluated and updated to reflect changes in risk assessment methodology and exposure factors and the updated values were provided in the most recent 5-Year Remedy Review Report (H+A, 2012) and again in the Monitoring and Contingency Plan (MCP) prepared in September 2014 (H+A, 2014b). In February 2015, DTSC requested updated hypothetical SWRBTLs be calculated to facilitate risk communication to the public.

In response to DTSC comments, the Group prepared hypothetical SWRBTLs for

Low-Frequency, High-Contact and High-Frequency, Low-Contact scenarios, presented below for prevalent compounds (Chatham PRP Group, 2015).

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Minimum SWRBTL, Low-Frequency, High-Contact Scenario

Minimum SWRBTL, High-Frequency, Low-Contact Scenario

Highest Detection in Felicita Creek During Most Recent Sampling Event1 Constituent micrograms per liter micrograms per liter micrograms per liter TCE 370 89 8.5 Tetrachloroethylene (PCE) 220 35 5.4 cis-1,2-Dichloroethylene (cis-1,2-DCE) 1,800 1,700 3.7 1,2-Dichloroethane (1,2-DCA) 640 160 1.8 1,1-Dichloroethylene (1,1-DCE) 43,000 39,000 1.2 1,4-Dioxane 910 370 36 Vinyl chloride 22 4.6 <0.50 1 Most recent sampling event was conducted in October 2015 for VOC constituents and April 2015 for 1,4-Dioxane.

For the two hypothetical exposure assumptions evaluated (i.e., a low-frequency, high-contact scenario, and a high frequency, low-contact scenario), the actual concentrations of VOCs detected in Felicita Creek (Table 3) remain substantially below the calculated hypothetical risk communication values, confirming that the remedy is providing ongoing protection of public health (Chatham PRP Group, 2015). The Group is currently working with DTSC to finalize the SWRBTLs.

Environmental Health Decisions (EHD) reviewed surface water data as part of an ecological screening assessment (Appendix B of H+A, 2012). Site-related constituents did not exceed federal or state ecological screening values established by EPA, RWQCB, and the U.S. Department of Energy. EHD concluded that “there are no ecological screening levels exceeded and no ecological impacts from surface water conditions in Felicita Creek are anticipated.” In addition, DTSC requested the Ecological Risk Assessment Section (ERAS) review the Final 5-Year Remedy Review Report and associated documents to evaluate potential impact on Felicita Creek. The review concluded “Based on the data provided, ERAS does not find significant risk from the detected VOCs to ecological receptors from surface waters of Felicita Creek.” (DTSC, 2014a).

1.4 EVALUATION GOALS

Traditionally, either passive or active mechanisms are utilized to remedy VOCs.

Passive

remediation entails monitoring and natural attenuation along with an ongoing monitoring program to ensure protection of human health and the environment is maintained.

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technologies that reduce VOC concentrations in groundwater and/or surface water through enhanced volatilization, treatment and/or hydraulic containment.

The goal of this Feasibility Evaluation is to identify and evaluate potential remedial approaches that are protective of human health and the environment and may be able to “significantly reduce or stop the flow of Site-related contaminants” to Felicita Creek to the extent practical.

As described above, VOCs enter Felicita Creek as dissolved constituents of groundwater that enters the creek channel under the influence of the local hydraulic gradient.

Data trends

representing both groundwater and surface water indicate that passive remediation through monitoring and natural attenuation will be successful with time. Practically however, for active remediation, the range of potential alternatives is conceptually limited. The goal of reducing or stopping flow of Site-related contaminants to the creek could be addressed by active technologies that either: 

treat VOCs in groundwater near the creek before the groundwater enters the creek channel;



stop or reduce the flow of groundwater containing VOCs to the creek channel, though this would likely result in dewatering a stretch of the creek; or



reduce VOC concentrations in creek surface water after groundwater enters the creek with active remediation that would accelerate the rate of reduction that already naturally occurs as the creek flows through FCP.

Each of these approaches presents its own challenges, as described in the following sections. It is likely that both passive and active remediation alternatives will operate for similar timeframes; therefore, the timeframe to complete is not evaluated in this Feasibility Evaluation.

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2.0 REMEDIAL TECHNOLOGIES FOR FELICITA CREEK

In order to address the DTSC comment to provide an evaluation to “address mechanisms which would significantly reduce or stop the flow of site related contaminants to the creek,” remedial technologies are presented in the following sections to address the presence of VOCs in Felicita Creek from approximately surface water sampling location FC-11 to FC-10. As described in the preceding section, groundwater containing VOCs is intercepted by the Felicita Creek channel incised to below the water table. Mechanisms to reduce or stop the flow of VOCs to the creek should remove VOCs from groundwater prior to interception by the creek channel, remove impacted groundwater before it enters the creek channel, or remove VOCs from the creek surface water after groundwater enters the creek channel.

2.1 IDENTIFICATION AND SCREENING OF POTENTIAL TECHNOLOGIES

Potential remedial technologies demonstrated to be appropriate at sites with similar compounds of concern were identified as potentially applicable to the Site-specific conditions in the vicinity of Felicita Creek. Sources used to identify and evaluate the remedial technologies include literature review, vendor information, case studies, engineering judgment, and Site-specific data. Remedial technologies and a screening of remedial technologies were presented and discussed in a technical meeting with DTSC, RWQCB, and representatives of the Group on April 20, 2015. The screening results and technologies that were identified for further evaluation are discussed below. Based on the initial technical meeting, two additional technical meetings were held on August 19, 2015 with RWQCB, DTSC, U.S. Army Corps of Engineers (USACE), and representatives of the Group and on August 25, 2015 with RWQCB, County of San Diego, and representatives of the Group to discuss remedial technology implementability issues to assist in the development of the Feasibility Evaluation.

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The following approaches and technologies were identified to address VOCs in Felicita Creek: 

No Action



Current MCP



Artesian Treatment Vessels



In Situ Groundwater Treatment (Prior to Flow Into Felicita Creek): o

Air Sparging in Shallow Groundwater beneath Felicita Creek

o

Injection of Reagents in Shallow Groundwater

o

Phytoremediation of VOCs Via Installation of Targeted Plant Species along Creek

o 

Ex Situ Surface Water Treatment (Within Felicita Creek): o



Permeable Reactive Barrier

Installation of Enhanced Volatilization Structures

Hydraulic Containment (Pump and Treat with Liquid Phase Carbon [LGAC] Adsorption) with four Disposal options: o

Pump and Treat with Stream Disposal

o

Pump and Treat with Subsurface Disposal

o

Pump and Treat with Sanitary Sewer Disposal

o

Pump and Treat with Irrigation Reuse

2.2 POTENTIAL TECHNOLOGIES DESCRIPTIONS

No Action No action is generally required to be evaluated during remedial technology screening, but the Group performs groundwater and surface water monitoring in accordance with the MCP (H+A, 2014b) as specified by the DTSC-approved RAP and Consent Decree. Therefore, the no-action alternative will not be considered in this Feasibility Evaluation.

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Monitoring in Accordance with the Current Monitoring and Contingency Plan Ongoing groundwater and surface water monitoring is being conducted in accordance with the current MCP.

Surface water in Felicita Creek is currently monitored semi-annually at

11 locations for VOCs; annually at 2 additional locations for VOCs, and 3 locations for 1,4-dioxane annually. In accordance with the MCP, any detection of VOCs in Felicita Creek exceeding SWRBTLs would trigger a contingency response. The MCP contingencies have been developed to ensure that human health and the environment remain protected at the Site. The MCP monitoring is currently being implemented at the Site, therefore this remedial alternative will be the baseline case for comparison of the remaining remedial alternatives instead of the no-action alternative.

Artesian Treatment Vessels This treatment technology relies on using differential head between the groundwater (subject to natural artesian conditions) and the creek to convey the groundwater through treatment vessels installed below ground level.

No energy inputs or mechanical moving parts are required.

Groundwater flows upward through the treatment vessels which contain LGAC.

Treated

groundwater flows through a gravel diffusion bed near the creek.

In Situ Groundwater Treatment This category of treatment technology consists of treatment of VOCs in groundwater prior to flow into Felicita Creek. Treatments considered include: 1) bubbling air through the saturated zone to enhance volatilization of VOCs to the unsaturated zone and potentially enhance aerobic degradation of VOCs; 2) injection of chemical reagents and/or amendments to promote VOC degradation reactions; 3) installation of targeted plant species adjacent to the creek to promote phytoremediation of VOCs in groundwater; or 4) installation of a permeable reactive barrier to chemically degrade VOCs as groundwater flows through the barrier before entering the creek.

Ex Situ Surface Water Treatment This category of treatment technologies consists of treatment of creek water within the Felicita Creek channel.

Treatment may be accomplished through:

1) installation of bubbler

mechanisms to volatize VOCs in surface water; or 2) installation of structures that intercept the

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surface water flow in the creek such as weirs, cascades, boulder clusters, or rip rap to enhance volatilization of VOCs by increasing the air/water contact.

Hydraulic Containment – Pump and Treat Pump and treat refers to one of the most well established and widely used remediation technologies. Implementation would involve installing vertical groundwater extraction wells in the shallow and/or deep zones with submersible pumps to intercept groundwater flows into Felicita Creek. Groundwater would be pumped and conveyed in above- and/or below-grade pipelines to a LGAC adsorption treatment system. Following treatment, treated groundwater would be conveyed to one of four disposal options: directly to Felicita Creek, through infiltration trenches/galleries to recharge groundwater, to irrigation reuse, or to the sanitary sewer.

2.3 SCREENING CRITERIA

Each potential remedial technology identified in Section 2.2 was screened based on Site-specific effectiveness and implementability.

The effectiveness of each remedial technology was addressed based on the ability to reliably reduce the flow of VOCs into Felicita Creek while minimizing changes to surface water flow in Felicita Creek.

The implementability evaluation addressed the technical and administrative feasibility of implementing each remedial technology at the Site considering Site conditions and administrative requirements.

A summary of the effectiveness and implementability screening of potential remedial technologies is presented in Table 5. Certain technologies were screened out at this level, and the rational is presented in Table 5. Retained technologies are discussed further below.

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2.4 RETAINED REMEDIAL TECHNOLOGIES

Remedial technologies were screened (Table 5) and the retained technologies for consideration are the current MCP, ex situ treatment within Felicita Creek by installation of structures, and hydraulic containment. The results of this screening were presented and discussed at the initial technical meeting with DTSC and the RWQCB in April 2015.

The retained remedial

technologies are assembled into the following remedial alternatives: 

FC1: Current MCP



FC2: Ex situ surface water treatment within Felicita Creek via installation of structures



FC3A: Hydraulic containment (pump and treat with LGAC) with treated groundwater to Felicita Creek



FC3B: Hydraulic containment with treated groundwater returned to subsurface



FC3C: Hydraulic containment with non-potable reuse

Analysis of these remedial alternatives is provided in Section 3.0.

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3.0 FELICITA CREEK REMEDIAL ALTERNATIVES ANALYSIS

The analysis of assembled remedial alternatives for Felicita Creek is presented in this section which includes the criteria used to evaluate the respective alternatives.

3.1 EVALUATION CRITERIA

Remedial alternatives were developed for Felicita Creek based on the remedial technologies retained from the previous section. Each remedial alternative was evaluated based on the following evaluation criteria: 

Protection of Human Health and Environment,



Effectiveness,



Implementability,



Cost, and



Preservation of Water Resource.

A description of each evaluation criterion is provided in the following sections.

3.1.1 Protection of Human Health and the Environment Each remedial alternative was evaluated as to its overall protection of human health and the environment.

The remedial alternatives were assessed to determine the degree to which

potential human exposure is minimized or eliminated and the degree to which the Felicita Creek resource and surrounding area is protected.

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3.1.2 Effectiveness Short-term effectiveness considers the effect of each remedial alternative on the protection of human health and the environment during the construction and implementation phase. Long-term effectiveness considers the likelihood that each remedial alternative will reduce VOC mass flux to Felicita Creek or the VOC concentrations in Felicita Creek.

3.1.3 Implementability The implementability evaluation addressed the technical and administrative feasibility of each remedial alternative. Technical feasibility was evaluated based on the ability to implement the remedial alternative given the existing Site-specific conditions. Administrative feasibility was evaluated based on the ability to obtain permits, gain State and community acceptance, and receive any off-property access required for the remedial alternative.

3.1.4 Cost Each remedial alternative was evaluated as to its relative expected cost (high, medium or low) compared to the other remedial alternatives.

Both capital and operation and maintenance

(O&M) costs were considered.

3.1.5 Water Resource Preservation Each remedial alternative was assessed to determine the degree to which the Felicita Creek water resource is preserved and changes in surface water flow caused by the respective remedial alternative is minimized.

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3.2 FELICITA CREEK REMEDIAL ALTERNATIVES

Each of the retained remedial alternatives for Felicita Creek are described below and evaluated based on the five evaluation criteria.

A summary of the pros and cons of each remedial

alternative is provided in Tables 6 and 7.

3.2.1 Alternative FC1: Current Monitoring and Contingency Plan (Baseline) The current MCP Alternative FC1 relies on the continued implementation of the provisions of the MCP (H+A, 2014b) to monitor the progress of cleanup in the creek. Current conditions indicate that reduction of VOCs will occur over time due to implementation of the GRS at the Site and natural attenuation processes in shallow groundwater.

The MCP outlines the groundwater and surface water monitoring that is conducted at the Site. Monitoring of shallow and deep groundwater in FCP and surface water in Felicita Creek is conducted on a semi-annual and annual basis. Surface water in Felicita Creek is monitored at 13 locations (Figure 5); shallow groundwater in FCP is monitored at 3 shallow monitor wells and 2 shallow regional wells (Figure 3); and deep groundwater in FCP is monitored at 3 deep monitor wells (Figure 4).

Triggers and contingencies have been identified in the MCP for potential receptors and hypothetical exposures to VOC-impacted groundwater and surface water. These contingencies have been developed to ensure that human health and the environment remain protected at the Site. The MCP also describes actions to be taken in the event that data collected or information developed during monitoring indicates the existence of a potential threat to human health or the environment. This MCP may also be updated in the event that data collected or information developed during monitoring indicates a potential threat to human health or the environment that may exist at the Site. Any detection of VOCs in surface water exceeding SWRBTLs will trigger a contingency response.

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3.2.1.1 Protection of Human Health and the Environment Alternative FC1 is protective of human health and the environment by maintaining regular monitoring of groundwater and surface water concentrations within FCP. The results of this monitoring are compared to SWRBTLs and, currently, all VOCs are significantly below relevant SWRBTLs.

SWRBTLs have been derived and updated (Section 1.3) to ensure ongoing

protection of human health during water-contact activities at the creek. The current MCP would protect human health and the environment in the event of an exceedance, since an exceedance will trigger a contingency response. Given the highly conservative assumptions used to derive the SWRBTLs, the detection of a Site-related chemical in creek water at a concentration above its SWRBTL does not indicate that risks to recreational users at the creek exceed risk levels established by regulatory agencies.

There are no visual, construction, and/or operating impacts to Felicita Creek or FCP as a result of implementation of Alternative FC1.

3.2.1.2 Effectiveness Alternative FC1 is effective for monitoring the progress of VOC concentration reduction by natural attenuation processes in Felicita Creek. Surface water analytical results are compared to SWRBTLs and, in the event that SWRBTLs are exceeded, contingency responses are triggered.

Alternative FC1 does not actively accelerate the reduction of VOC mass flux or VOC concentrations in Felicita Creek, but future decreases of both VOC mass flux and VOC concentrations are anticipated in Felicita Creek as a result of natural attenuation of VOCs in shallow groundwater. Also, although concentrations of VOCs exceeding MCLs are observed in Felicita Creek in the northern portion of FCP (between surface water sampling locations FC-11 and FC-10), volatilization of VOCs is likely occurring downstream of surface water sampling location FC-10, as evidenced by the low detections or no detection of VOCs at surface water sampling location FC-7. VOC volatilization in shallow surface streams is commonly observed due to the high Henry’s Law constants and the exposure of the surface to ambient air conditions (Chapman et al., 2007).

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There are no adverse long-term environmental impacts related to implementation of Alternative FC1.

3.2.1.3 Implementability Alternative FC1 is an established, successful procedure for monitoring VOCs in Felicita Creek and is highly implementable based on the ease of installation, availability of experienced contractors, reliability of technology, and simplicity of performance monitoring. Groundwater monitoring has been conducted in existing FCP monitor wells and regional wells for 9 to 20 years, and surface water monitoring has been conducted in Felicita Creek for approximately 20 years.

Groundwater and surface water sampling methods are based on conventional,

proven techniques. In addition, there would be no disruption to patrons other than semiannual collection of groundwater and surface water samples by a two person field crew.

Sample

collection at all groundwater wells and surface water locations would be completed in no more than 2 days per sampling event.

Administratively, Alternative FC1 has proven implementability with respect to agency coordination and access to monitoring locations within FCP.

3.2.1.4 Cost Alternative FC1 represents the baseline for remedial alternatives in Felicity Creek since these MCP activities are ongoing and required by DTSC. Therefore, there is no additional cost to implement this alternative because no activities are proposed beyond those currently conducted.

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3.2.1.5 Water Resource Preservation Alternative FC1 preserves the water resource.

3.2.2 Alternative FC2: Ex Situ Treatment – Enhanced Volatilization Ex situ surface water treatment would consist of treatment of creek water within Felicita Creek, between sampling locations FC-11 and FC-10. Treatment would potentially be accomplished through installation of structures along approximately 1,400 lineal feet of Felicita Creek that would intercept the surface water flow and would enhance the natural volatilization of VOCs that is already occurring throughout the length of the creek. The structures, such as aeration weirs or boulders and rip rap may induce turbulent flow to increase gas transfer by air/water contact, thereby increasing the dissolved oxygen in the water and removing dissolved VOCs.

Studies have shown that the ratio between the aeration coefficient for oxygen and the volatilization coefficient for VOCs is constant for a given environmental condition (Pant et al., 2007), indicating that aeration processes may be potentially effective VOC stripping processes. The effectiveness of VOC removal would depend upon factors including the efficiency of the physical design of the structures to achieve air to water contact as well as environmental conditions such as water velocity, water depth, water and air temperatures, wind speed, and water quality.

In accordance with Section 404 of the Clean Water Act, installation of any

structure within the Felicita Creek channel will require authorization from the USACE.

Aeration Weirs/Cascades:

Aeration (oxygen addition) is routinely the first step during the

production of drinking water from groundwater or riverbank water, and one of the oldest hydraulic structures employed is the aeration weir or series of weirs, known as cascades (Toombes, L. and H. Chanson, 2000) (Figure 10A). Weir structures accomplish aeration and gas stripping (VOC removal) through a stepped drop in elevation, where the water falls over a weir into the water body at a lower elevation. When the falling water stream submerges in the receiving water body, air is entrained and dispersed in the form of bubbles, providing an improved interface between air and water. Gas transfer occurs at the interface between the water and the air bubbles and the residence time of entrained bubbles in the water body correlates with the stripping efficiency. Because the amount of air that is entrained is limited,

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the capacity for gas transfer of VOCs through weirs and cascades is limited.

Weirs or

cascades, therefore, are commonly used in water treatment for the removal of methane and the addition of oxygen, and not typically used for the removal of VOCs when high removal efficiencies are required (Van Dijk, J.C., 2007). The expected TCE removal efficiency in a cascade system is less than 50 percent. The air water interface ratio may possibly be improved by adding baffles to produce additional turbulence.

Installation of weirs would involve construction of multiple barriers across the creek, designed to accumulate (pool) water behind the weir until the water level rises to the height of the weir and flows steadily over the top (Figure 10B). Key components to the aeration and VOC stripping efficiency of the weir is the drop (fall) height of each weir, receiving water depth, weir discharge rate, and the number of weir steps forming the cascade system, although the efficiency of the system is limited, as described previously. An efficient VOC-removal weir drop height in the northern 1,400 feet of the east fork of Felicita Creek between FC-11 and FC-10 would be difficult to achieve due to the minimal elevation relief. The northern-most 400-foot section of the east fork between FC-11 and FC-12 has an approximately 5-foot elevation decline, the next 500-foot section between FC-12 and south of FC-15 has an approximately 15-foot elevation decline, and the next 500-foot section between FC-15 and Clarence Lane has an approximately 5-foot elevation decline.

Detailed engineering evaluation and field testing in the creek would be required to design each weir structure, but given the minimal elevation relief over long distances, it can be assumed that many

short-drop

weir

structures

would

be

required

with

significant

distances

of

pooled/accumulated water behind (upgradient) of each structure. A series of cascade-type check dams, installed during the Work Projects Administration in the 1930’s, are currently located in Felicita Creek in the vicinity of surface water sampling location FC-7, where the creek gradient is much steeper.

Boulders and/or Rip Rap: In-stream structures such as rip/rap, boulder clusters, and riffles have typically been used to enhance stream habitat for the benefit of fish and other aquatic organisms (Fischenich, C. and R. Seal, 2000; Washington Department of Forestry, 2004). In order to be effective, water velocities must be sufficient so that these structures create flow separation and lead to the formation of eddies or vortices in their wake.

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enhancing stream habitat, these flow characteristics may be also useful to enhance volatilization of VOCs. Aeration may be increased by strategic placement of rip rap and/or large (greater than 1 cubic yard) immobile boulders within the creek bed to create velocity gradients and turbulence as the water travels along a more tortuous path around and over these features (Figure 10A). Boulder placement creates a diversity of water depths and velocities which would provide air bubbles and turbulence as the boulders induce water velocity gradients, where slow water velocities occur in close proximity to faster velocities.

This induced turbulence may

increase the air water contact to enhance volatilization.

Installation of boulder clusters or rip-rap in the northern-most portion of the east fork of Felicita Creek between FC-11 and FC-12 is unlikely to induce the flow characteristics necessary to enhance volatilization. This portion of the creek has minimal elevation relief and water velocity is slow and visually imperceptible. Boulder installation would be focused on the 1,100-foot portion of Felicita Creek between FC-12 and FC-10.

There are currently large boulders located in Felicita Creek between surface water sampling locations FC-14 and FC-5, which create turbulent flow.

3.2.2.1 Protection of Human Health and the Environment Although implementation of the current MCP is protective of human health and the environment, Alternative FC2 is marginally more protective. Enhanced volatilization would protect human health and the environment by accelerating the rate of volatilization to reduce VOC concentrations in a shorter distance than is currently occurring.

The potential for human

exposure may be marginally reduced and the VOC concentrations within Felicita Creek may be reduced. Alternative FC2 provides protection of the environment by preserving the flow of water in Felicita Creek.

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3.2.2.2 Effectiveness Installation of enhanced volatilization structures (aeration weirs/cascades or rip rap) in Felicita Creek is anticipated to be marginally effective at accelerating the rate of volatilization to reduce VOC concentrations in Felicita Creek more rapidly and within a shorter distance than is currently occurring due to natural attenuation. The effectiveness will be variable, depending on creek flowrate. The total mass of VOCs transferred to the air due to the enhanced volatilization would dissipate immediately and not pose a risk to human health.

The enhanced volatilization

structures may require periodic maintenance to remove accumulated natural debris that would reduce their effectiveness.

3.2.2.3 Implementability Construction of the enhanced volatilization structures throughout a 1,100- to 1,400-foot section of the northern portion of Felicita Creek would result in a short-term significant disruption to Felicita Creek and FCP. These impacts would include temporary restriction of access to the northern portion of Felicita Creek and FCP and noise associated with construction.

Construction of weirs would require diversion of the creek or the use of temporary cofferdams to allow the enclosed creek area to be pumped out and create a dry work environment. Sheet piles associated with the cofferdams may be left in place to avoid damage to the newly constructed weir.

The weir structures would be installed across the creek channel and

embedded in the creek banks in multiple locations with footings for the weirs extending below the creek bed at sufficient depth to stabilize the structures.

Installation of boulder clusters would require careful placement of rock. Typically, a hydraulic excavator with a bucket and thumb attachment that can easily move the boulders is used.

For both weir installation and boulder cluster placement, the number and location of access points should be carefully selected to minimize trampling and damage to bank slopes and riparian vegetation as the heavy equipment moves up and down the creek channel. At project completion, disturbed areas will need to be graded smooth, seeded, and planted to repair damage and restore the riparian zone.

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Technical implementability of Alternative FC2 is moderately difficult, requiring an iterative approach. Performance testing and possible modification would be required for each structure installed throughout the 1,100- to 1,400-foot length of Felicita Creek between surface water sampling locations FC-11 and FC-10 due to the unique creek conditions at each location.

Long-term impacts associated with Alternative FC2 include altering the existing nature of flow within Felicita Creek and disturbance of the stream bed, although similar structures are currently present in Felicita Creek. Construction of cascades or boulders and rip rap can be designed to use materials that visually blend with the natural environment of Felicita Creek and have the appearance of natural features. At project completion, all structures could be removed.

Alternative FC2 would be difficult to implement, based on permitting requirements.

As

discussed with RWQCB and USACE during technical meetings on August 16, 2015, this project would require extensive permits. FCP is a California State Historic Site, and both access and approval to implement Alternative FC2 would require negotiation with the County of San Diego Parks Department. There are multi-jurisdictional permitting requirements including: 

Obtain USACE approval for installation of any structure within Felicita Creek, in accordance with Section 404 of the Clean Water Act;



Obtain determination from RWQCB in accordance with Section 403 of the Clean Water Act;



Consult with California Department of Fish and Wildlife regarding design of VOC mitigation for necessary permits;



Perform Biological Surveys to support environmental permits;



California Environmental Quality Act (CEQA) evaluation and determination by DTSC; and



Conduct public notification and community relations.

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3.2.2.4 Cost The Alternative FC2 costs would be high. Costs would include a complex approval process to negotiate access in FCP, multi-jurisdictional permitting, CEQA review, and biological surveys; capital costs for the significant construction effort; and O&M costs for periodic inspection and debris removal.

3.2.2.5 Water Resource Preservation Alternative FC2 does not alter the volume of flow in Felicita Creek, but does promote turbulent flow characteristics. Therefore, Alternative FC2 preserves the water resource.

3.2.3 Alternative FC3A: Hydraulic Containment with Treated Water to Surface Water Hydraulic containment of groundwater that flows to Felicita Creek would be accomplished using pump and treat technology. A conceptual design for evaluation purposes was developed and has been evaluated. Any design would need to be reviewed and approved by the San Diego County Parks Department. Implementation may include installation of three to five or more groundwater extraction wells located along the axis of the northern portion of Felicita Creek between sampling locations FC-11/11A and FC-10, to intercept shallow groundwater flow to Felicita Creek. Groundwater would be pumped by submersible pumps installed in each extraction well and conveyed through approximately 1,400 feet of above- and/or below-grade, double-contained pipelines to a LGAC adsorption treatment system. Conveyance piping will be installed adjacent to Felicita Creek. Based on professional judgment, simple capture analysis, and hydraulic information from groundwater monitoring, it is assumed that the total flowrate to the LGAC adsorption treatment system would be approximately 20 to 40 gallons per minute. The LGAC adsorption treatment system would consist of two 2,000-pound carbon adsorbers, a 2,000-gallon utility tank, a transfer pump, and a control system and would be located on a 20-foot by 20-foot concrete pad with spill containment dike, surrounded by fencing. If access approval can be obtained from FCP, the treatment system could be installed adjacent to the old county firehouse building at FCP (Figures 11A and 11B).

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Conveying treated water to Felicita Creek would require construction of a structure in the northern portion of FCP and approximately 300 feet of above- and/or below-grade treated water pipeline from the effluent of the LGAC adsorption treatment system at the old county firehouse to Felicita Creek.

Felicita Creek is located within the Felicita HSA, which is designated for beneficial use as municipal and domestic supply. Returning treated groundwater to Felicita Creek would require obtaining a NPDES permit under the General Waste Discharge Requirements for Groundwater Extraction Discharges to Surface Waters within the San Diego Region, San Diego RWQCB Order No. R9-2015-0013/NPDES No. CAG919003. Consultation with the RWQCB indicates treatment of TDS, chloride, nitrate, total nitrogen, sulfate, manganese, and iron which occur in regional groundwater would be required. Treatment for these constituents is not feasible due to the generation of a brine stream that must be disposed of via sanitary sewer. Sanitary sewer capacity is not currently available in the vicinity of FCP. Surface monitoring and reporting would be required as stipulated by the NPDES permit.

3.2.3.1 Protection of Human Health and the Environment Although implementation of the current MCP is protective of human health and the environment, Alternative FC3A is marginally more protective by reducing the mass flux of VOCs into Felicita Creek. The potential for human exposure would be reduced and the VOC concentrations within Felicita Creek would be reduced.

Alternative FC3A provides protection of the environment by preserving the flow of water in Felicita Creek by conveying treated water to the creek, but installation and construction activities will cause significant disruption to the northern portion of FCP adjacent to a sensitive creek.

3.2.3.2 Effectiveness Hydraulic containment is potentially effective for capturing shallow and deep groundwater in the targeted area and LGAC is a proven effective technology for reducing VOC concentrations in extracted water. LGAC would not reduce other constituents in groundwater including TDS,

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chloride, sulfate and other non-VOCs that may require treatment to comply with discharge requirements for the NPDES permit. The extraction system can be designed and implemented to minimize mass flux of VOCs into Felicita Creek between surface water sampling locations FC-11 and FC-10. Treated water returned to the creek would mix with VOCs flowing into the creek outside of the extraction capture zone, but may not achieve MCLs throughout the creek in the short-term.

3.2.3.3 Implementability During the construction of Alternative FC3A, there would be a short-term significant disruption to Felicita Creek and FCP.

These impacts would include noise and traffic associated with

construction and temporary restriction of access to the northern portion of FCP from Felicita Creek to the old county firehouse. Construction activities would include drilling and installation of the shallow and deep extraction wells and associated wellhead equipment; installation of the treatment system; trenching for installation of electrical conduit, conveyance pipelines, and treated water pipelines; and construction of a water return structure. Construction equipment and activities would potentially impact the sensitive creek and park environment and restoration activities may be required. During the operational phase, there will be a loss of use of the treatment system area to FCP and park patrons, although there is minimal potential human exposure to VOCs from operation of the treatment system. Construction in and below the ordinary high water mark in the vicinity of Felicita Creek will trigger the need for Section 404 and 403 permits issued by USACE and RWQCB, respectively. O&M of the treatment system and disposal structure will necessitate regular visits by the treatment system operator and/or other contractors.

Technical implementability of Alternative FC3A is moderate.

Design and installation of

groundwater extraction wells for hydraulic containment and LGAC treatment systems are standard practice. Extraction well locations could be sited to minimize impacts to existing FCP features.

Experienced drillers and contractors are available.

O&M of the treatment and

disposal systems are standard practice and experienced operators are available.

Alternative FC3A would be difficult to implement, based on administrative challenges. FCP is a California State Historic Site, and both access and approval to implement Alternative FC3A

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would require negotiation with the County of San Diego Parks Department. There are multi-jurisdictional permitting requirements including: 

Obtain USACE approval for installation of any structure within the Felicita Creek or below the ordinary high water mark, in accordance with Section 404 of the Clean Water Act;



Obtain determination from RWQCB in accordance with Section 403 of the Clean Water Act;



Consult with California Department of Fish and Wildlife regarding design of VOC mitigation for necessary permits;



Perform Biological Surveys to support environmental permits;



CEQA evaluation and determination by DTSC;



Obtain NPDES permit; and



Conduct public notification and community relations.

Returning treated water to Felicita Creek would not be feasible due to treatment requirements for inorganic constituents including TDS, chloride, nitrate, and sulfate.

Treatment of these

constituents generates a brine stream that must be disposed of via sanitary sewer. Sanitary sewer capacity is not currently available in the vicinity of FCP.

3.2.3.4 Cost Alternative FC3A costs would be high. Costs would include a complex approval process to negotiate access, multi-jurisdictional permitting, CEQA review, and biological surveys; capital costs for the significant construction effort; O&M costs including monitoring in accordance with the NPDES permit.

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3.2.3.5 Water Resource Preservation Alternative FC3A returns the treated water to the creek and preserves the water resource.

3.2.4 Alternative FC3B: Hydraulic Containment with Treated Water to Subsurface Hydraulic containment of groundwater that flows to Felicita Creek would be accomplished using pump and treat technology, as described in Alternative FC3A (Section 3.2.3). The remedial alternative would be designed to be outside the delineated area of Felicita Creek to eliminate the need for Section 404 and 403 permits issued by USACE and RWQCB, respectively.

Returning treated groundwater to the subsurface would require construction of one or more infiltration trenches to recharge groundwater. The infiltration trench(es) could be located near surface water sampling location FC-11. Typical infiltration trenches consist of a 3-foot to 6-foot deep trench, lined with filter fabric and backfilled with aggregate (EPA, 1999). Generally, a sand layer is provided at the base of the trench, aggregate is used to fill the trench to approximately 2 inches below grade and a 2-inch thick pea gravel layer overlies the top.

Treated water

conveyed to the infiltration trench passes downward through the void space between the stones and infiltrates through the trench bottom and into the soil matrix, and recharges groundwater.

Infiltration trenches must have routine inspection and maintenance. The principal maintenance objective is to prevent clogging, which may lead to reduced infiltration capacity. An observation well is recommended to monitor water levels in the trench, generally a 4- to 6-inch diameter pipe which is anchored vertically to a foot plate at the bottom of the trench. Inadequate drainage may indicate the need for maintenance.

Felicita Creek is located within the Felicita HSA, which is designated for beneficial use as municipal and domestic supply. Infiltration of treated groundwater would require obtaining a permit under the General Waste Discharge Requirements for Discharges of Treated Groundwater from Volatile Organic Compound Cleanup Sites to Land in the San Diego Region (WDR), San Diego RWQCB Order No. R9-2008-0138. Infiltration groundwater would require RWQCB to adopt permit limits for TDS, chloride, nitrate, total nitrogen, and sulfate consistent

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with regional groundwater quality. Monitoring and reporting would be required as stipulated by the WDR permit.

3.2.4.1 Protection of Human Health and the Environment Although implementation of the current MCP is protective of human health and the environment, Alternative FC3B is marginally more protective by reducing the mass flux of VOCs into Felicita Creek. The potential for human exposure would be reduced and the VOC concentrations within Felicita Creek would be reduced.

Alternative FC3B may result in the loss of flow to the creek if the infiltrated water promotes growth of plants that increase evapotranspiration and installation and construction activities will cause significant disruption to the northern portion of FCP adjacent to a sensitive creek.

3.2.4.2 Effectiveness Hydraulic containment is potentially effective for capturing shallow and deep groundwater in the targeted area and LGAC is a proven effective technology for reducing VOC concentrations in extracted water. The extraction system can be designed and implemented to minimize mass flux of VOCs into Felicita Creek between surface water sampling locations FC-11 and FC-10. There is the potential for loss of flow in the creek if infiltrated water does not flow into the creek. A portion of the infiltrated groundwater may also be recaptured by the extraction wells reducing the overall effectiveness of this alternative. Alternative FC3B may not achieve MCLs throughout the creek in the short-term.

3.2.4.3 Implementability During the construction of Alternative FC3B, there would be a short-term significant disruption to Felicita Creek and FCP.

These impacts would include noise and traffic associated with

construction and temporary restriction of access to the northern portion of FCP from Felicita Creek to the old county firehouse. Construction activities would include drilling and installation of the shallow and deep extraction wells and associated wellhead equipment; installation of the

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treatment system; trenching for installation of electrical conduit, conveyance pipelines, and treated water pipelines; and construction of the infiltration trench(es). During the operational phase, there will be a loss of use of the treatment system area and infiltration trench area to FCP and park patrons, although there is minimal potential human exposure to VOCs from operation of the treatment system. O&M of the treatment system and infiltration trench(es) will necessitate regular visits by the treatment system operator and/or other contractors. Periodically, the infiltration trenches will require rehabilitation and or replacement to restore loss of capacity due to fouling.

Technical implementability of Alternative FC3B is moderate.

Design and installation of

groundwater extraction wells for hydraulic containment and LGAC treatment systems are standard practice. Experienced drillers and contractors are available. O&M of the treatment and disposal systems are standard practice and experienced operators are available.

Alternative FC3B would be difficult to implement, based on administrative challenges. FCP is a California State Historic Site, and both access and approval to implement Alternative FC3B would require negotiation with the County of San Diego Parks Department. The San Diego County Parks Department in the August 25, 2015 technical meeting indicated a strong preference for alternatives that do not have extensive underground infrastructure and require new facilities. There are multi-jurisdictional permitting requirements including: 

Consult with California Department of Fish and Wildlife regarding design of VOC mitigation for necessary permits;



Perform Biological Surveys to support environmental permits;



Determine CEQA requirements for CEQA evaluation, if required; and



Conduct public notification and community relations.

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3.2.4.4 Cost Alternative FC3B costs would be high. Costs would include a complex approval process to negotiate access, multi-jurisdictional permitting, CEQA review, and biological surveys; capital costs for the significant construction effort; O&M costs including monitoring in accordance with the WDR permit. Maintenance of the infiltration trench(es) would be costly due to fouling.

3.2.4.5 Water Resource Preservation Alternative FC3B would be designed for maximum return of the treated water to the creek, but there is potential loss of flow in the creek if a portion of infiltrated water is lost to increase plant growth in the vicinity of the infiltration trench(es).

3.2.5 Alternative FC3C: Hydraulic Containment with Non-Potable Reuse Hydraulic containment of groundwater that flows to Felicita Creek would be accomplished using pump and treat technology, as described in Section 3.2.3.

Irrigation reuse at FCP would require installation of a water storage tank and associated pumps, pipelines, and controls to connect the effluent of the treatment system to the FCP irrigation distribution system.

3.2.5.1 Protection of Human Health and the Environment Although implementation of the current MCP is protective of human health and the environment, Alternative FC3C is marginally more protective of human health by reducing of the mass flux of VOCs- into Felicita Creek, but would not protect the environment due to the loss of water flow in the creek due to losses associated with evapotranspiration in the irrigated area. Given the seasonally variable demand for irrigation water, there would likely be periods of time when the system could not be operated, allowing for continued flow into the creek.

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3.2.5.2 Effectiveness Hydraulic containment is potentially effective for capturing shallow and deep groundwater in the targeted area and LGAC is a proven effective technology for reducing VOC concentrations in extracted water. The extraction system can be designed and implemented to minimize mass flux of VOCs into Felicita Creek between surface water sampling locations FC-11 and FC-10. Treated water would not be returned to the creek system, but would be used for irrigation within FCP. Alternative FC3C may not achieve MCLs throughout the creek in the short-term.

During the operational phase, there will be a loss of use of the treatment system area to FCP and park patrons, although there is minimal potential human exposure to VOCs from operation of the treatment system. O&M of the treatment system will necessitate regular visits by the treatment system operator and/or other contractors.

3.2.5.3 Implementability During the construction of Alternative FC3C, there would be a short-term significant disruption to Felicita Creek and FCP.

These impacts would include noise and traffic associated with

construction and temporary restriction of access to the northern portion of FCP from Felicita Creek to the old county firehouse. Construction activities would include drilling and installation of the shallow and deep extraction wells and associated wellhead equipment; installation of the treatment system; trenching for installation of electrical conduit, conveyance pipelines, and treated water pipelines; and construction of the FCP irrigation tie-in.

Technical implementability of Alternative FC3C is moderate.

Design and installation of

groundwater extraction wells for hydraulic containment and LGAC treatment systems are standard practice. Experienced drillers and contractors are available. O&M of the treatment and disposal systems are standard practice and experienced operators are available.

Alternative FC3C would be difficult to implement, based on administrative challenges. FCP is a California State Historic Site, and both access and approval to implement Alternative FC3C would require negotiation with the County of San Diego Parks Department. The San Diego County Parks Department in the August 25, 2015 technical meeting indicated that there is no

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need for additional irrigation water at FCP. It is unlikely that another irrigation water user could be identified in the vicinity of FCP.

There are multi-jurisdictional permitting requirements

including: 

Obtain WDR permit with waiver of permit limits for TDS, chloride, sulfate, nitrate, total nitrogen;



Consult with California Department of Fish and Wildlife regarding design of VOC mitigation for necessary permits;



Perform Biological Surveys to support environmental permits;



Determine CEQA requirements for CEQA evaluation, if required; and



Conduct public notification and community relations.

3.2.5.4 Cost Alternative FC3C costs would be high. Costs would include a complex approval process to negotiate access, multi-jurisdictional permitting, CEQA review, and biological surveys; capital costs for the significant construction effort; O&M costs including monitoring in accordance with the NPDES permit.

3.2.5.5 Water Resource Preservation Alternative FC3C does not return the treated water to the creek and therefore, does not preserve the water resource.

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4.0 COMPARISON OF ALTERNATIVES

The Felicita Creek alternatives include passive and active remedial mechanisms to reduce VOCs:

monitoring and natural attenuation (Alternative FC1); construction of structures in

Felicita Creek to enhance volatilization (Alternative FC2); and hydraulic containment and treatment of extracted groundwater (Alternatives FC3A, FC3B, and FC3C). Three treated water options were considered for the hydraulic containment option: Felicita Creek (FC3A), infiltration trench (FC3B), and irrigation reuse (FC3C).

Protection of Human Health and Environment

Current concentrations detected in Felicita Creek have not exceeded any of the SWRBTLs and risk analyses for Felicita Creek concluded that Site-related contaminants within Felicita Creek are protective of human health and the environment (H+A, 2012; DTSC, 2014a and 2014c). Alternatives FC1, FC2, and FC3 (A to C) provide protection of human health through continued surface water monitoring in Felicita Creek and comparison of analytical results to SWRBTLs. Current conditions indicate that VOC reductions will occur over time through natural attenuation processes. Alternatives FC2 and FC3 (A to C) are marginally more protective of human health than FC1 by marginally reducing the potential for human exposure to VOCs: FC2 is anticipated to limit VOC exposure to a shorter distance within Felicita Creek and FC3 (A to C) is expected to reduce the mass flux of VOCs into Felicita Creek. Alternatives FC1, FC2, and FC3A provide protection of the environment by preserving the flow of water in Felicita Creek, with Alternative FC3B performing similarly and Alternative FC3C performing less favorably due to water losses due evapotranspiration in the irrigated area(s).

Effectiveness

Alternative FC1, FC2, and FC3 are expected to reduce VOCs in Felicita Creek.

The

mechanism for VOC reduction in Alternative FC1 is natural attenuation, for Alternative FC2 is enhanced volatilization of creek water, and for Alternative FC3 is hydraulic containment and treatment of extracted groundwater with LGAC. Alternative FC2 is anticipated to provide VOC reduction in Felicita Creek more quickly and within a shorter distance than Alternative FC1.

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Alternatives FC3A, FC3B, and FC3C are expected to intercept groundwater containing VOCs prior to flow into Felicita Creek, and reduce the mass flux of VOCs to Felicita Creek. Alternative FC3A will return the treated water directly to the creek and mix with VOC-impacted water flowing in the creek.

Alternative FC3B will recharge groundwater and mix with

VOC-impacted water flowing in the creek, although the mixing effect will be lower than Alternative FC3A. Alternative FC3C will reduce the mass flux of VOCs to Felicita Creek, but would be subject to seasonal water demand and result in reduced operation of the system during the wet season.

Implementability

Alternative FC1 is the most implementable alternative. Alternatives FC2 and FC3B are difficult to

implement

due

to

the

approval/permits

and

access

requirements,

respectively.

Alternatives FC3A and FC3C cannot be practically implemented due to the natural inorganic water quality/permit requirements and lack of need for irrigation water by FCP, respectively.

Cost

Alternative FC1 has a low associated cost. Alternatives FC2, FC3A, FC3B, and FC3C have high costs.

Water Resource Preservation

Alternative FC1 preserves the flow in Felicita Creek with no adverse impacts to the creek. Alternative FC2 preserves flow in the creek with limited adverse impact due to installation of structures in the creek. Alternative FC3A preserves the flow in Felicita Creek, Alternative FC3B may reduce the flow in Felicita Creek if a portion of infiltrated water does is lost before flowing into the creek, and Alternative FC3C has the greatest potential to decrease the flow in Felicita Creek between surface sampling locations FC-11 and FC-10.

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Preferred Alternative

FC-1 is the preferred alternative. It is protective of human health and the environment, it is implementable while the other alternatives may not be due to permitting limitation. FC-1 is least disruptive and preserves the water resource.

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5.0 REFERENCES

California Environmental Protection Agency, Department of Toxic Substances Control (DTSC), 1998. Remedial Action Plan, Chatham Brothers Barrel Yard, Escondido, California. January 1998. _____, 2014a. Memorandum from J. Eichelberger to H. Nassiri, DTSC, re: Final 5 Year Remedy Review Report, July 2004 – March 2010, Chatham Site. August 22, 2014. _____, 2014b. Letter from H. Nassiri to E. Modiano, Chatham Site PRP Group, re: Response to Annual Monitoring Submittal and Conceptual Site Model Update, Chattham [sic] Brothers Barrel Yard, Escondido, California, Site Code 400029-00, MPC 332. September 24, 2014. _____, 2014c. Memorandum from E. Neuwirth to H. Nassiri, DTSC, and re: Health risks related to VOC contaminants in Felicita Creek, Chatham Brother Barrel Yards Site, Escondido, California. October 22, 2014. California Regional Water Quality Control Board, San Diego Region, 2012. Water Quality Control Plan for the San Diego Basin (9). September 8, 1994; updated and uploaded to RWQCB website August 28, 2012. Chapman, S.W., B. Parker, J. Cherry, R. Aravena, D. Hunkeler, 2007. “Groundwater-surface water interaction and its role on TCE groundwater plume attenuation”, Journal of Contaminant Hydrology, 91, issues 3-4, 203-232, 2007. Chatham Site PRP Group, 2015. Letter from E. Modiano to H. Nassiri, DTSC, re: Response to DTSC Comments Dated February 19, 2015 on the Monitoring and Contingency Plan, Chatham Site, Escondido, California Revision 2.2. April 30, 2015. Environ Corporation, 1996. Human Health Risk Assessment and Screening Ecological Evaluation Report, Chatham Site, Escondido, California. May 1996. Fischenich, C. and R. Seal, 1999. “Boulder Clusters,” EMRRP Technical Notes Collection (ERDC TN-EMRRP-SR-11), U.S. Army Engineer Research and Development Center, Vicksburg, MS. Hargis + Associates, Inc., 1996. Final Remedial Investigation Report, Chatham Site, Escondido, California. March 28, 1996. _____, 2012. Final 5-Year Remedy Review Report, July 2004 – March 2010, Chatham Site, Escondido, California, Revision 1.0. August 24, 2012. _____, 2014a. Annual Monitoring Submittal and Conceptual Site Model Update, April 2014, Chatham Site, Escondido, California. July 11, 2014. _____, 2014b. Monitoring and Contingency Plan, Chatham Site, Escondido, California, Revision 2.2. September 12, 2014.

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_____, 2015a. Technical Memorandum from G. Cranham and J. Schwall to E. Modiano, de maximis, inc., re: Felicita Creek Evaluation Update, Chatham Site, Escondido, California. January 16, 2015. _____, 2015b. Annual Monitoring Submittal and Conceptual Site Model Update, April 2015, Chatham Site, Escondido, California. June 29, 2015. _____, 2015c. Semi Annual Monitoring Submittal, Chatham Site, Escondido, California. December 15, 2015. Pant, P., M. Allen, Y. Cai, K. Jayachandran, and Y. Cehn, 2007. Influence of Physical Factors on Trichloroethylene Evaporation from Surface Water. Water Air Soil Pollution 183:153-163, March 8, 2007. Toombes, L. and H. Chanson, 2000. Air-Water Flow and Gas Transfer at Aeration Cascades: A Comparative Study of Smooth and Stepped Chutes. In: Minor, H. E. and Hager, W. H., Proceedings of the International Workshop on Hydraulics of Stepped Spillways. International Workshop on Hydraulics of Stepped Spillways, Zurich, Switzerland, (77-84). 22-24 March 2000. U.S. Environmental Protection Agency (EPA), 1999. Storm Water Technology Fact Sheet, Infiltration Trench, Office of Water, Washington, D.C., EPA 832-F-99-019. September, 1999. _____, 2011. Integrated Report (Clean Water Section 303(d)/305(6) Report). October 11, 2011. Van Dijk, J.C., 2007. Drinking Water: Water Treatment Technology, Sanitary Engineering Department, CT 4471, Delft University of Technology. September 2007. Washington Department of Forestry, 2004. Boulder Clusters. 2004. Retrieved on November 16, 2015 at https://www.wou.edu/las/physci/taylor/g407/restoration/WA_Dept_Forestory_ 2004_Boulder_Clusters.pdf

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TABLE 1 PREVALENT VOLATILE ORGANIC COMPOUNDS AND 1,4-DIOXANE IN GROUNDWATER …..…………………….CONCENTRATION (micrograms per liter)…………………………

SAMPLE IDENTIFIER

DATE SAMPLED

QUALITY ASSURANCE CODE

MW-53

MW-53-20140423 MW-53-20141028 MW-53-20150422

04/23/14 10/28/14 04/22/15

ORG ORG ORG

440-76645-14 440-91616-4 440-107818-15

7.0 7.5 3.9

4.4 4.6 3.0

1.4 1.5 <1.0

<1.0 <1.0 <1.0

0.60 0.75 <0.50

1.2 1.2 <1.0

<1.0 <1.0 <1.0

----

MW-54

MW-54-20140423 MW-5400-20140423 MW-54-20141029 MW-54-20150423 MW-5400-20150423 MW-54-20151020

04/23/14 04/23/14 10/29/14 04/23/15 04/23/15 10/20/15

ORG FD ORG ORG FD ORG

440-76645-9 440-76645-10 440-91701-3 440-107927-14 440-107927-15 440-124888-29

5.9 6.1 29 6.7 6.2 21

2.7 2.6 18 3.2 3.0 14

1.4 1.5 5.0 1.2 1.1 3.4

<1.0 <1.0 <1.0 <1.0 <1.0 <1.0

<0.50 <0.50 1.3 <0.50 <0.50 0.70

<1.0 <1.0 2.3 <1.0 <1.0 1.7

<1.0 <1.0 <1.0 <1.0 <1.0 <1.0

24 23 32 24 21 22

MW-58

MW-58-20140425 MW-58-20141030 MW-58-20150422 MW-58-20151021

04/25/14 10/30/14 04/22/15 10/21/15

ORG ORG ORG ORG

440-76843-9 440-91798-6 440-107818-12 440-124986-2

7.9 22 12 9.4

4.7 15 7.1 6.0

3.3 7.5 4.5 3.2

<1.0 <1.0 <1.0 <1.0

1.9 5.1 2.9 2.0

1.2 4.0 1.8 1.3

<1.0 <1.0 <1.0 <1.0

15 24 25 17

MW-66

MW-66-20140425 MW-66-20141029 MW-66-20150422 MW-66-20151020

04/25/14 10/29/14 04/22/15 10/20/15

ORG ORG ORG ORG

440-76843-10 440-91701-4 440-107818-13 440-124888-30

120 92 98 87

78 64 62 60

30 26 27 25

<2.5 <1.0 <1.0 <1.0

18 14 16 15

23 16 17 16

<2.5 1.1 1.1 1.2

-----

MW-70

MW-70-20140423 MW-7000-20140423 MW-70-20141029 MW-70-20150423 MW-70-20151020

04/23/14 04/23/14 10/29/14 04/23/15 10/20/15

ORG FD ORG ORG ORG

440-76645-11 440-76645-12 440-91701-6 440-107927-16 440-124888-28

46 45 49 40 26

24 22 28 19 14

11 11 12 8.8 31

<1.0 <1.0 <1.0 <1.0 <1.0

4.3 4.0 5.6 4.6 3.2

6.8 6.5 6.4 5.0 3.8

<1.0 <1.0 <1.0 <1.0 <1.0

------

MW-71

MW-71-20140425 MW-71-20150422

04/25/14 04/22/15

ORG ORG

440-76843-3 440-107927-8

<1.0 <1.0

<1.0 <1.0

<1.0 <1.0

<1.0 <1.0

<0.50 <0.50

<1.0 <1.0

<1.0 <1.0

---

33-R3

33-R3-20140422 33-R3-20150422

04/22/14 04/22/15

ORG ORG

440-7693-6 440-107818-9

2.1 <1.0

1.3 <1.0

<1.0 <1.0

<1.0 <1.0

<0.50 <0.50

<1.0 <1.0

<1.0 <1.0

<2.0 <2.0

34-N5

34-N5-20140422 34-N5-20140723 34-N5-20141029 34-N5-20150128 34-N5-20150422 34-N5-20151021

04/22/14 07/23/14 10/29/14 01/01/15 04/22/15 10/21/15

ORG ORG ORG ORG ORG ORG

440-76493-3 440-83894-3 440-91697-2 440-100200-3 440-107818-7 440-124981-7

17 11 8.8 26 23 28

10 7.1 6.0 17 14 19

4.0 2.3 2.1 6.8 5.8 7.1

<1.0 <1.0 <1.0 <1.0 <1.0 <1.0

1.8 1.2 1.1 3.2 3.0 4.2

2.7 1.3 1.3 4.8 3.2 4.7

<1.0 <1.0 <1.0 <1.0 <1.0 <1.0

11 ---20 --

WELL IDENTIFIER Shallow Monitor Wells

LABORATORY IDENTIFIER

TCE

PCE

cis-1,2DCE

trans-1,2DCE

1,2-DCA

1,1-DCE

1,1-DCA

1,4-DIOXANE

Deep Monitor Wells

Shallow Regional Wells

FOOTNOTES TCE = PCE = cis-1,2-DCE = trans-1,2-DCE =

Trichloroethylene Tetrachloroethylene cis-1,2-Dichloroethylene trans-1,2-Dichloroethylene

(<) = (--) = ORG = FD =

Less than; the numerical value is the Limit of Detection for that compound Not sampled Original sample Field duplicate sample

1,2-DCA = 1,2-Dichloroethane 1,1-DCE = 1,1-Dichloroethylene 1,1-DCA = 1,1-Dichloroethane

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TABLE 2 DETECTED INORGANIC CONSTITUENTS IN GROUNDWATER SAMPLES, FELICITA PARK Analyte Chloride Fluoride Hardness, as CaCO3 Iron Manganese Nitrate as N Nitrate Nitrite as N Nitrogen, Total Percent sodium Phosphorus, Total Selenium Sulfate Total Dissolved Solids Un-ionized Hydrogen Sulfide BASIN = IM = AMEL = mg/L = N/A = (< ) = Underlined =

CAS Number Units 16887-00-6 16984-48-8 N/A 7439-89-6 7439-96-5 14797-55-8 N/A N/A 7440-23-5 7723-14-0 7782-49-2 14808-79-8 N/A N/A

mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % mg/L mg/L mg/L mg/L mg/L

Limitation Type of Value Limit 250 1 -0.3 0.05 10 10 2 60 0.2 4.1 500 500 10

BASIN IM -IM IM BASIN BASIN IM IM IM AMEL BASIN BASIN IM

MW-66

MW-70

MW-58

MW-54

MW-53

5/21/2015 190 <0.50 640 0.051 <0.020 11 11 11 0.012 0.065 <0.010 270 1,100 0.0

5/21/2015 140 -410 0.71 0.046 12 12 12 0.0087 0.1 0.017 130 750 0.0

5/21/2015 300 0.58 940 0.25 4.2 4.1 4.1 4.4 0.024 0.12 <0.010 570 1,900 0.0

5/21/2015 450 0.86 1,200 0.08 <0.020 11 11 11 0.026 0.056 <0.010 560 2,200 0.0

5/21/2015 320 0.51 1,000 0.37 0.056 3.7 3.7 3.9 0.014 0.075 <0.010 450 1,600 0.0

Basin Plan Water Quality Objectives, San Diego Region Instantaneous Maximum Effluent Limitation, NPDES Permit Average Monthly Effluent Limitation, NPDES Permit milligrams per liter not available Less than; the value is the Limit of Detection for that compound Detections over the effluent limitations

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TABLE 3 PREVALENT VOLATILE ORGANIC COMPOUNDS AND 1,4-DIOXANE IN SURFACE WATER ..…...…..…………………………...CONCENTRATION (micrograms per liter)……………………………………….

SAMPLE IDENTIFIER FC-03-20150422

DATE SAMPLED 4/22/2015

QUALITY ASSURANCE CODE ORG

FC-4

FC-04-20140424 FC-04-20141030 FC-04-20150421 FC-4-2151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-3 440-91797-4 440-107701-6 440-124888-3

17 3.7 17 6.5

11 2.5 11 3.6

8.0 2.4 8.2 3.7

3.7 0.98 3.7 1.5

3.2 < 1.0 3.2 1.1

<0.50 <0.50 <0.50 <0.50

31 100 34 --

FC-4N(a)

FC-4N-20151020

10/20/2015

ORG

440-124888-2

7.1

4.5

3.9

1.6

1.2

<0.50

--

FC-5

FC-05-20140424 FC-05-20141030 FC-05-20150421 FC-05-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-8 440-91797-8 440-107701-12 440-124888-8

6.8 5.1 7.9 4.4

4.4 3.6 5.2 2.6

3.0 2.1 3.3 1.8

1.8 1.4 2.3 1.2

1.0 < 1.0 1.2 <1.0

<0.50 <0.50 <0.50 <0.50

-----

FC-6

FC-06-20140424 FC-06-20150421

4/24/2014 4/21/2015

ORG ORG

440-76720-10 440-107701-11

< 1.0 < 1.0

< 1.0 < 1.0

< 1.0 < 1.0

< 0.50 < 0.50

< 1.0 < 1.0

< 0.50 < 0.50

---

FC-7

FC-07-20140424 FC-07-20141030 FC-07-20150421 FC-07-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-14 440-91797-14 440-107701-16 444-124888-14

1.2 < 1.0 1.1 < 1.0

< 1.0 < 1.0 < 1.0 < 1.0

< 1.0 < 1.0 < 1.0 < 1.0

<0.50 < 0.50 <0.50 < 0.50

< 1.0 < 1.0 < 1.0 < 1.0

< 0.50 < 0.50 < 0.50 < 0.50

25 -35 --

FC-8A

FC-08A-20140424 FC-08A-20141030 FC-08A-20150421 FC-08A-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-15 440-91797-15 440-107701-18 440-124888-15

< 1.0 < 1.0 1.1 < 1.0

< 1.0 < 1.0 < 1.0 < 1.0

< 1.0 < 1.0 < 1.0 < 1.0

< 0.50 < 0.50 < 0.50 < 0.50

< 1.0 < 1.0 < 1.0 < 1.0

< 0.50 < 0.50 < 0.50 < 0.50

-----

FC-10

FC-10-20140424 FC-10-20141030 FC-10-20150421 FC-10-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-13 440-91797-13 440-107701-15 440-124888-12

7.9 12 9.1 8.5

5.5 8.4 6.6 5.4

2.0 3.7 2.7 2.3

1.3 2.3 1.6 1.3

1.1 1.3 1.4 1.1

< 0.50 < 0.50 < 0.50 < 0.50

26 40 36 --

FC-10N-20151020

10/20/2015

ORG

440-124888-11

8.9

5.6

2.6

1.4

1.4

< 0.50

--

FC-11-20140424 FC-11A-20140522 FC-1100A-20140522 FC-11A-20141030 FC-11-20150421 FC-1100-20150421 FC-11A-20151020

4/24/2014 5/22/2014 5/22/2014 10/30/2014 4/21/2015 4/21/2015 10/20/2015

ORG ORG FD ORG ORG FD ORG

440-76720-2 440-79226-2 440-79226-3 440-91797-3 440-107701-5 440-107701-4 440-12488-1

27 U 5.3 5.2 25 11 11 < 1.0

19 U 3.4 3.2 10 7.4 7.6 < 1.0

8.8 U 4.1 4.0 15 4.5 4.4 < 1.0

5.4 U 1.3 1.3 5.5 2.1 2.2 < 0.50

4.9 U 1.1 1.1 4.1 1.6 1.6 < 1.0

<0.50 U <0.50 <0.50 <0.50 <0.50 <0.50 < 0.50

--------

WELL IDENTIFIER FC-3

FC-10N(a) FC-11 FC-11A FC-11A FC-11A FC-11 FC-11 FC-11A

724 H01_2015-2_Tbls_Tbl03_SW_PrevVOCs.xlsx

LABORATORY IDENTIFIER 440-107818-8

TCE < 1.0

PCE < 1.0

cis-1,2-DCE < 1.0

1,2-DCA < 0.50

1,1-DCE < 1.0

VC < 0.50

1,4-DIOXANE --

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TABLE 3 PREVALENT VOLATILE ORGANIC COMPOUNDS AND 1,4-DIOXANE IN SURFACE WATER ..…...…..…………………………...CONCENTRATION (micrograms per liter)……………………………………….

SAMPLE IDENTIFIER FC-12-20140424 FC-1200-20140424 FC-12-20141030 FC-12-20150421 FC-12-20151020

DATE SAMPLED 4/24/2014 4/24/2014 10/30/2014 4/21/2015 10/20/2015

QUALITY ASSURANCE CODE ORG FD ORG ORG ORG

FC-13

FC-13-20140424 FC-13-20141030 FC-13-20150421 FC-13-20151020 (b)

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-6 440-91797-6 440-107701-8 440-124888-5

7.4 6.1 8.6 4.3

4.8 3.7 5.9 2.3

3.9 3.8 5.3 2.6

1.8 1.3 2.4 1.1

1.3 1.1 1.7 <1.0

<0.50 <0.50 <0.50 <0.50

-----

FC-14

FC-14-20140424 FC-14-20141030 FC-14-20150421 FC-14-20151020 FC-1400-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015 10/20/2015

ORG ORG ORG ORG FD

440-76720-7 440-91797-7 440-107701-9 440-124888-6 440-124888-13

12 15 13 8.7 7.4

7.9 10 9.1 5.3 4.5

4.8 6.0 5.5 3.5 3.0

2.9 3.3 3.2 1.8 1.8

2.2 2.3 2.3 1.2 1.1

<0.50 <0.50 <0.50 <0.50 <0.50

------

FC-15

FC-15-20140424 FC-15-20141030 FC-15-20150421 FC-15-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-9 440-91797-11 440-107701-13 440-124888-9

2.2 6.6 4.3 2.8

1.5 4.0 3.0 1.5

<1.0 2.5 1.5 1.0

<0.50 1.5 0.90 0.58

<1.0 <1.0 <1.0 <1.0

<0.50 <0.50 <0.50 <0.50

-----

FC-16

FC-16-20140424 FC-16-20141030 FC-1600-20141030 FC-16-20150421 FC-16-20151020

4/24/2014 10/30/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG FD ORG ORG

440-76720-12 440-91797-12 440-91797-2 440-107701-14 440-124888-10

7.5 9.8 11 9.4 6.6

4.8 6.5 7.7 6.5 3.9

2.2 3.1 3.6 2.9 1.9

1.1 1.6 1.8 1.7 0.98

1.3 1.3 1.4 1.4 1.0

<0.50 <0.50 <0.50 <0.50 <0.50

------

FC-17

FC-17-20140424 FC-17-20141030 FC-17-20150421 FC-17-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-11 440-91797-10 440-107701-10 440-124888-7

< 1.0 < 1.0 < 1.0 < 1.0

< 1.0 < 1.0 < 1.0 < 1.0

< 1.0 < 1.0 < 1.0 < 1.0

< 0.50 < 0.50 < 0.50 < 0.50

< 1.0 < 1.0 < 1.0 < 1.0

< 0.50 < 0.50 < 0.50 < 0.50

-----

WELL IDENTIFIER FC-12

LABORATORY IDENTIFIER 440-76720-4 440-76720-5 440-91797-5 440-107701-7 440-124888-4

TCE 7.4 6.6 < 1.0 7.4 2.3

PCE 4.7 4.3 < 1.0 4.5 1.3

cis-1,2-DCE 5.0 4.7 < 1.0 6.2 2.3

1,2-DCA 1.9 1.9 < 0.50 2.3 0.80

1,1-DCE 1.4 1.4 < 1.0 1.5 <1.0

VC 0.65 0.70 < 0.50 <0.50 <0.50

1,4-DIOXANE ------

NOTE: trans-1,2-Dichloroethylene and 1,1-Dichloroethane were non detect in all samples (a) Sample collected into directly submerged, unpreserved VOA vial. (b) Additional analyte p-Isopropyltoluene detected at a concentration of 2.1 micrograms per liter on 10/20/15. FOOTNOTES TCE = PCE = cis-1,2-DCE = 1,2-DCA =

Trichloroethylene Tetrachloroethylene cis-1,2-Dichloroethylene 1,2-Dichloroethane

724 H01_2015-2_Tbls_Tbl03_SW_PrevVOCs.xlsx

VC = (<) = ORG = FD =

Vinyl chloride Less than; the numerical value is the Limit of Detection for that compound Original sample Field duplicate sample

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1,1-DCE = 1,1-Dichloroethylene (--) = Not analyzed U = Unusable, data out of trend VOA = Volatile organic analysis

TABLE 4 INORGANIC CONSTITUENTS IN SURFACE WATER

WELL IDENTIFIER

DATE SAMPLE IDENTIFIER SAMPLED

QUALITY ASSURANCE CODE

LABORATORY IDENTIFIER

County of San Diego Basin Plan Standards:

Fluoride (mg/l)

Nitrate as Nitrogen (mg/l)

Chloride (mg/l)

Sulfate (mg/l)

TDS (mg/l)

MBAS (mg/l)

Turbidity (NTU)

Total Coliform (MPN/100ml)

1.0(a)

10(b)

250(a)

250(a)

500(a)

0.05(a)

20(a)

200(c)

FC-4

FC-04-20140424 FC-04-20141030 FC-04-20150421 FC-04-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-767220-18 440-91797-4 440-107701-6 440-124888-21

<1.0 <0.50 <0.50 <0.50

4.7 2.7 3.4 2.4

270 210 240 200

570 390 450 370

1,700 1,400 1,500 1,300

<0.10 <0.10 <0.10 <0.10

70 930 30 5

>1,600(d) >1,600(e) 1,600(f) >1,600(j)

FC-10

FC-10-20140424 FC-10-20141030 FC-10-20150421 FC-10-20151020

4/24/2014 10/30/2014 4/21/2015 10/20/2015

ORG ORG ORG ORG

440-76720-20 440-91797-13 440-107701-15 440-124888-22

<0.50 <0.50 <0.50 <0.50

2.8 4.4 3.3 2.8

250 230 280 250

400 350 430 400

1,400 1,400 1,500 1,400

<0.10 <0.10 <0.10 <0.10

0.55 4.0 0.45 0.45

540(g) >1,600(h) 1,600(i) >1,600(k)

FOOTNOTES (a) = Basin Plan Standards from Table 3-2 for Hodges HA, with exception of Nitrate and Total Coliform, see below for Excerpts. (b) = Maximum Contaminant Level shown for Nitrate as Nitrogen, which applies to surface water with beneficial use MUN (Municipal/Domestic). (c) = Fecal Coliform Water Quality Objective for beneficial use REC-1 (Contact Recreation): "The fecal coliform concentration, based on a minimum of not less than five samples for any 30-day period, shall not exceed a log mean of 200 organisms per 100 milliliters." (d) = Sample collected separately; laboratory identifier is 440-76720-19 (e) = Sample collected separately; laboratory identifier is 440-91797-17 (f) = Sample collected separately; laboratory identifier is 440-107701-24 (g) = Sample collected separately; laboratory identifier is 440-76720-21 (h) = Sample collected separately; laboratory identifier is 440-91717-18 (I) = Sample collected separately; laboratory identifier is 440-107701-25 (j) = Sample collected separately; laboratory identifier is 440-124888-24 (k) = Sample collected separately; laboratory identifier is 440-124888-23 MBAS = Methylene Blue Active Substances (Surfactants) TDS = Total Dissolved Solids mg/l = milligrams per liter NTU = Nephelometric Turbidity Units MPN/ 100 ml = (<) = ORG = (>) =

Most Probable Number of organisms per 100 milliliters of water Less than; the numerical value is the Limit of Detection for that compound Original sample Greater than

724 H01_2015-2_Tbls_Tbl04_SW_AddAnalytes.xlsx

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TABLE 5 FELICITA CREEK REMEDIAL TECHNOLOGY SCREENING FELICITA CREEK, CHATHAM SITE, ESCONDIDO CALIFORNIA General Category of Remedial Technology

Potential Remedial Technology Description

Effectiveness

Implementability

Screening Result

Monitor in Accordance with MCP (Baseline)

Monitor in Accordance with MCP (Baseline)

 Effective for monitoring the progress of cleanup in the creek  Allows evaluation of surface water quality to SWRBTLs  Clean up will occur over time by natural attenuation

 Established, successful procedure  No visual or construction impacts to the Felicita Creek or the Park

RETAINED

Artesian Treatment Vessels

Artesian Treatment Vessels



SCREENED

In Situ Groundwater Treatment in Shallow Groundwater

Air Sparging

 Not effective due to inadequate head differential between aquifer and Felicita Creek to allow treatment (Basis of screening)  Not effective due to problematic distribution of air in weathered bedrock (Basis of screening)  Potentially effective for destruction and reduction of VOCs in Felicita Creek assuming adequate distribution of reagents and consistent reapplication over time  Requires extensive injection and monitoring points along Felicita Creek to be effective

Injection of Chemical Reagents such as zero-valent iron or enhanced bioremediation amendments

SCREENED



  

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Not implementable due to lack of Artesian conditions

Not implementable due to potential short-circuiting of injection solutions into Felicita Creek. Potential for treatment byproducts to surface in creek due to incomplete reaction (Basis of screening). Installation of delivery points hampered by existing park features (creek, trees, boulders) Ongoing injection of reagents required Visual, construction, and operating impacts to Felicita Creek or FCP

SCREENED

TABLE 5 FELICITA CREEK REMEDIAL TECHNOLOGY SCREENING FELICITA CREEK, CHATHAM SITE, ESCONDIDO CALIFORNIA General Category of Remedial Technology In Situ Groundwater Treatment in Shallow Groundwater (continued)

Potential Remedial Technology Description Phytoremediation Along Creek

Effectiveness  Potentially effective for treating and minimizing VOC impacts in Felicita Creek, but effectiveness would be delayed until establishment of sufficient plant transpiration.

Implementability  



  Permeable Reactive Barrier

 Potentially effective for treating and reducing VOC impacts in Felicita Creek.  Would change inorganic water chemistry of creek



 

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Introduces non-native species in and adjacent to Felicita Creek Plants and associated organic matter reduce groundwater flow in the creek due to plant transpiration (basis of screening) Plants would require large area of FCP along Felicita Creek between surface water sampling locations FC-11 and FC-10 Plants may clog/destroy creek Multi-jurisdiction approvals/permits required Difficult to implement due to extensive infrastructure installation along and underneath Felicita Creek between surface water sampling locations FC-11 and FC10 (basis of screening) Multi-jurisdiction approvals/permits required Visual, construction, and operating impacts to Felicita Creek or FCP

Screening Result SCREENED

SCREENED

TABLE 5 FELICITA CREEK REMEDIAL TECHNOLOGY SCREENING FELICITA CREEK, CHATHAM SITE, ESCONDIDO CALIFORNIA General Category of Remedial Technology Ex Situ Surface Water

Potential Remedial Technology Description

Effectiveness

Implementability

Bubbler Mechanisms

 Inadequate depth in creek for effective volatilization of VOCs (primary basis for screening)  System effectiveness may depend upon creek flowrate

 Bubbler design would require frequent maintenance due to biofouling and varying depth/flowrate in creek (added basis for screening)  Multi-jurisdiction approvals/permits required

SCREENED

Structures such as weirs, cascades, or boulder clusters, or rip rap

 Potentially effective for treating and minimizing VOC impacts in Felicita Creek  Preserves water flow in Felicita Creek  System effectiveness may depend upon creek flowrate

 Boulder/rip-rap design would provide passive treatment minimizing ongoing operations and maintenance costs  Multi-jurisdiction approvals/permits required

RETAINED

Page 3 of 4 724 H01_2015-2_Tbls_Tbl05.docx

Screening Result

TABLE 5 FELICITA CREEK REMEDIAL TECHNOLOGY SCREENING FELICITA CREEK, CHATHAM SITE, ESCONDIDO CALIFORNIA

General Category of Remedial Technology Hydraulic Containment (Extraction wells) with Liquid Phase Carbon Adsorption Treatment

Potential Remedial Technology Description Hydraulic Containment /Treatment to Felicita Creek

Hydraulic Containment/Treatment to Infiltration Trench

Hydraulic Containment/Treatment to Sanitary Sewer

Hydraulic Containment/Treatment with Irrigation Reuse

Effectiveness

Implementability

 Proven technology for reducing concentrations in extracted water  Potentially effective for capturing and treating targeted area.  Treated groundwater to Felicita Creek may mix with VOCs flowing into creek from outside capture zone  Proven technology for reducing concentrations in extracted water  Potentially effective for capturing and treating targeted area.

 Water resource is preserved  Multi-jurisdiction approvals/permits required  Visual, construction, and operating impacts to Felicita Creek or FCP

RETAINED

 Potential small loss of flow in the creek if increased evapotranspiration in vicinity of trench(es) due to plant growth  Multi-jurisdiction approvals/permits required

RETAINED



Insufficient capacity in sanitary sewer Complete loss of extracted groundwater, resulting in significant losses of flow in creek (Basis of screening)

SCREENED

Potential moderate loss of extracted water due to evapotranspiration in irrigated areas resulting ins some loss of flow in creek

RETAINED

 Proven technology for reducing concentrations in extracted water  Potentially effective for capturing and treating targeted area.  Proven technology for reducing concentrations in extracted water  Potentially effective for capturing and treating targeted area.





Screening Result

ACRONYMS SWRBTLs = Surface Water Risk-Based Tigger Levels MCLs = Maximum Contaminant Levels VOCs = Volatile organic compounds

FCP = Felicita County Plan MCP = Monitoring and Contingency Park

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TABLE 6 SUMMARY OF RETAINED REMEDIAL ALTERNTATIVES ANAYLSIS FELICITA CREEK, CHATHAM SITE, ESCONDIDO CALIFORNIA Potential Remedial Alternatives FC1 (Baseline)

FC2

Alternative Description

Pros

FC1: Monitor in accordance with MCP

 Effective for monitoring the progress of cleanup in the creek  Allows evaluation of surface water quality to SWRBTLs  Maintains the resource with no visual, construction and/or operating impacts to Felicita Creek or the Park  Clean up will rely on natural attenuation  Protection of Human Health and Environment  Easily implementable  No additional cost

 VOC reduction rate in creek limited by natural processes, VOC reduction not achieved until southern portion of park

FC2: In–Situ Treatment – Enhanced volatilization of VOCs through installation of structures in Felicita Creek (Weirs or Boulder Clusters)

 Some methods (boulder clusters) do not require ongoing maintenance  Preserves the flow in Felicita Creek

 This naturally occurs, just intensifying rate of volatilization to reduce VOCs more rapidly and in shorter distance within the Park  Significant engineering design and disturbance of stream bed  Multi-jurisdiction approvals/permits required  Visual, construction and/or operating impacts to the Felicita Creek or the Park  High cost

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Cons

TABLE 6 SUMMARY OF RETAINED REMEDIAL ALTERNTATIVES ANAYLSIS FELICITA CREEK, CHATHAM SITE, ESCONDIDO CALIFORNIA

Potential Remedial Alternatives FC3

Alternative Description FC6: Felicita Creek Hydraulic Containment (For Disposal see Table 7)  Felicita Creek hydraulic containment consisting of extraction wells  Groundwater treatment with Liquid Phase Carbon Adsorption

Pros  Proven technology for reducing concentrations in extracted water  Potentially effective for capturing and treating area along Felicita Creek  Extraction well location can be selected to minimize impacts to existing park features

ACRONYMS

MCP SWRBTLs DTSC MCLs VOCs

= = = = =

Monitoring and Contingency Plan Surface Water Risk-Based Tigger Levels California Department of Toxic Substances Control Maximum Contaminant Levels Volatile organic compounds

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Cons  Disposal options can be problematic (see Table 7)  Multi-jurisdiction approvals/permits required  Moderate to high disruption during construction conveyance pipelines from extraction wells to treatment system  Visual, construction and/or operating impacts to Felicita Creek or the Park  High cost

TABLE 7 HYDRAULIC CONTAINMENT DISPOSAL OPTION ANALYSIS FOR ALTERNATIVE FC3 FELICITA CREEK, CHATHAM SITE, ESCONDIDO CALIFORNIA Potential Disposal Options for Alternative FC3

Alternative Description

Pros

Cons

A

Stream Disposal  Return VOC-treated groundwater to Felicita Creek to maintain stream flow

 Relatively simple and easy to maintain  Maintains resource and flowing creek  Potential mixing of VOCs flowing into creek to reduce concentrations from outside capture zone

 Groundwater that currently flows to creek contains constituents that will not be treated using carbon, and either A) RWQCB waives discharge limits for NPDES permit (for example - TDS, chloride, sulfate and other non-VOCs) OR B) additional, much more costly treatment with larger footprint would be required  If additional inorganic treatment is required, this disposal option not likely feasible. Inorganic treatment generates another waste stream that cannot be readily be disposed of  If inorganic treatment not required, lower cost when compared to other disposal options

B

Subsurface Disposal  Return VOC-treated groundwater to subsurface by construction of infiltration trench structure(s) to recharge treated water

 Permitting may be less stringent for non-Site related compounds as compared to A  Maintains water resource (potential small loss of flow in the creek if increased evapotranspiration in vicinity of trench(es) due to plant growth) 

 Maintenance of infiltration trench would be high due to potential biofouling or plugging (fouling)  Greater surface disruption and long-term access to replace/rehabilitate infiltration system  Moderate cost when compared to other disposal options

C

Irrigation Reuse

 Potentially lower cost when compared to other disposal options

 Not viable as a stand-alone disposal alternative due to variability of daily and seasonal demand  Water resource is not maintained due to evaporation losses

ACRONYMS NPDES = National Pollutant Discharge Elimination System VOCs = Volatile organic compounds

RWQCB = Regional Water Quality Control Board TDS = Total dissolved solids

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FIGURE 2B

FIGURE 6.

HARGIS + ASSOCIATES, INC. FIGURE 7 TRICHLOROETHYLENE IN FELICITA CREEK SURFACE WATER SAMPLING LOCATIONS FC-4 AND FC-7, AND FLOWRATE AT FC-7, OCTOBER 1994 TO OCTOBER 2015

900

30

FC-7 FC-4

750

FLOW RATE

20

600

15

450

10

300

5

150

0

0

Month & Year NOTE A hollow symbol indicates trichloroethylene was not detected in the sample; reporting limit is plotted.

FLOW RATE (gallons per minute)

CONCENTRATION (micrograms per liter)

25

Detection of Trichloroethylene in March 2002 appears anomalous based on data trending and subsequent analysis

HARGIS + ASSOCIATES, INC. FIGURE 8 TRICHLOROETHYLENE CONCENTRATIONS, MONITOR WELLS MW-46 AND MW-69 AUGUST 1994 TO OCTOBER 2015

500

CONCENTRATION (micrograms per liter)

450 400 350 300 MW-46 (Shallow)

250

MW-69 (Deep)

200 150 100 50 0

Month & Year

HARGIS + ASSOCIATES, INC. FIGURE 9 TRICHLOROETHYLENE CONCENTRATIONS, MONITOR WELLS MW-58 AND MW-66 SEPTEMBER 1999 TO OCTOBER 2015

500

CONCENTRATION (micrograms per liter)

450 400

MW-58 (Shallow) MW-66 (Deep)

350 300 250 200 150 100 50 0

Month & Year NOTE: A hollow symbol indicates trichloroethylene was not detected in the sample; reporting limit is plotted.

FLOW

PLAN VIEW

NOTCHED WEIR

NOTCHED WEIR

PLAN VIEW

CREEK WATER SURFACE

DROP HEIGHT

POOLING BEHIND WEIR CREEK W

WEIR

ATER SU RFACE

STRE AM B E

D

CREEK LEVEL PRIOR TO WEIR INSTALLATION

PROFILE VIEW

NOT TO SCALE

STREA

M BED

WEIR

HARGIS + ASSOCIATES, INC.

APPENDIX A

LABORATORY ANALYTICAL RESULTS MAY 2015

1 2 3 4

ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Irvine 17461 Derian Ave Suite 100 Irvine, CA 92614-5817 Tel: (949)261-1022 TestAmerica Job ID: 440-110716-2 Client Project/Site: Chatham For: Hargis + Associates, Inc. La Jolla Gateway 9171 Towne Centre Drive Suite 375 San Diego, California 92122 Attn: Mr. Jim Schwall

Authorized for release by: 6/25/2015 5:09:48 PM Heather Clark, Project Manager I (949)261-1022 [email protected]

The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

5 6 7 8 9 10 11 12 13 14

Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Table of Contents Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Isotope Dilution Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 3

1 2 3 4 6 31 32 37 59 67 68

4 5 6 7 8 9 10 11

69 75 76

12 13 14

Page 2 of 76

TestAmerica Irvine

6/25/2015

Sample Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Matrix Water Water Water

Collected Received 05/21/15 08:15 05/21/15 16:53 05/21/15 09:40 05/21/15 16:53 05/21/15 10:20 05/21/15 16:53

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Water Water

05/21/15 12:40 05/21/15 16:53 05/21/15 14:15 05/21/15 16:53

3 4 5 6 7 8 9 10 11 12 13 14

TestAmerica Irvine

Page 3 of 76

6/25/2015

Case Narrative Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Job ID: 440-110716-1

3

Laboratory: TestAmerica Irvine

4

Narrative

5

Job Narrative 440-110716-1

6

Comments No additional comments.

7

Receipt The samples were received on 5/21/2015 4:53 PM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperatures of the 5 coolers at receipt time were 0.1º C, 0.2º C, 0.2º C, 0.6º C and 3.1º C. GC/MS VOA No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

9 10

GC/MS Semi VOA Method(s) 625: The continuing calibration verification (CCV) associated with batch 258691 recovered above the upper control limit for benzoic acid. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported. The following samples are impacted: MW-58-20150521 (440-110716-1), MW-66-20150521 (440-110716-2), MW-53-20150521 (440-110716-3), MW-54-20150521 (440-110716-4), MW-70-20150521 (440-110716-5) and (CCVIS 440-258691/2). Method(s) 625: The percent recoveries for the laboratory control sample (LCS) in batch 257104 failed below the lower acceptance limits for the following analytes: 3-nitroaniline; 4-chloroaniline and 3,3'-dichlorobenzidine. Low recoveries are possibly due to less than optimal extraction conditions such as fluctuations in heating mantle temp, condenser water temp, ambient light, angle of apparatus, spike solvent, final volume measurements, etc. The affected samples could not be reextracted within sample hold time. Method(s) 625: The %RPD of the laboratory control sample (LCS) and laboratory control standard duplicate (LCSD) for preparation batch 257104 recovered outside control limits for the following analytes: 3,3'-dichlorobenzidine; 3-nitroaniline; 4-chloroaniline; and 4-nitroaniline. Method(s) 625: The laboratory control sample duplicate (LCSD) for batch 257104 recovered outside control limits for 3-nitroaniline. This analyte was biased high in the LCSD and was not detected in the associated samples; therefore, the data have been reported. Method(s) 625: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with 257104. The laboratory control sample (LCS) was performed in duplicate to provide precision data for this batch. Method(s) 625: The laboratory control sample (LCS) for batch 257104 recovered outside control limits for benzidine. This analyte was biased high in the LCS and was not detected in the associated samples; therefore, the data have been reported. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. HPLC/IC No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. GC Semi VOA Method(s) 8082: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate/sample duplicate (MS/MSD/DUP) associated with batch 257432. The laboratory control sample (LCS) was performed in duplicate to provide precision data for this batch.(LCS 440-257432/5-A) No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Dioxin No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Metals Method(s) 6010B: The method blank for preparation batch 440-257300 contained Thallium above the reporting limit (RL). None of the samples associated with this method blank contained the target compound; therefore, re-extraction and/or re-analysis of sample was not

Page 4 of 76

8

TestAmerica Irvine 6/25/2015

11 12 13 14

Case Narrative Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Job ID: 440-110716-1 (Continued)

3

Laboratory: TestAmerica Irvine (Continued)

4

performed.MW-58-20150521 (440-110716-1) Method(s) 200.7 Rev 4.4: The continuing calibration blank (CCB) for analytical batch 440-259054 contained Magnesium above the reporting limit (RL). All reported samples associated with this CCB contained this analyte at a concentration greater than 10X the value found in the CCB; therefore, re-analysis of samples was not performed.MW-66-20150521 (440-110716-2), MW-53-20150521 (440-110716-3), MW-54-20150521 (440-110716-4) and MW-70-20150521 (440-110716-5) No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. General Chemistry Method(s) SM4500 S2 H: Dissolve sulfide analysis was performed for sample MW-58-20150521 (440-110716-1), MW-66-20150521 (440-110716-2), MW-53-20150521 (440-110716-3), MW-54-20150521 (440-110716-4) and MW-70-20150521 (440-110716-5), and the result obtained was a non-detect. As such, the result for hydrogen sulfide was reported as non-detect. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

5 6 7 8 9 10 11 12

Dioxin Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

13

Job ID: 440-110716-2

14

Laboratory: TestAmerica Irvine Narrative

Job Narrative 440-110716-2 Comments Revised report to add Acrolein & Acrylonitrile. Receipt The samples were received on 5/21/2015 4:53 PM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperatures of the 5 coolers at receipt time were 0.1º C, 0.2º C, 0.2º C, 0.6º C and 3.1º C. GC/MS VOA Method(s) 624: The following samples was analyzed outside of analytical holding time due to analytes added in after hold time has passed. MW-58-20150521 (440-110716-1), MW-66-20150521 (440-110716-2), MW-53-20150521 (440-110716-3), MW-54-20150521 (440-110716-4) and MW-70-20150521 (440-110716-5). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

Page 5 of 76

TestAmerica Irvine 6/25/2015

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-58-20150521

Lab Sample ID: 440-110716-1

Date Collected: 05/21/15 08:15 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 624 - Volatile Organic Compounds (GC/MS) Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane

1

Result Qualifier ND ND

1,1,2-Trichloroethane

ND

Acrylonitrile

ND H

1,1-Dichloroethane

ND

1,1-Dichloroethene 1,2-Dichlorobenzene

RL 0.50 0.50

MDL Unit ug/L ug/L

0.50

D

Prepared

Analyzed 05/26/15 22:19 05/26/15 22:19

Dil Fac 1 1

ug/L

05/26/15 22:19

1

5 6 7

2.0

ug/L

05/26/15 22:19

1

1.7

0.50 0.50

ug/L ug/L

05/26/15 22:19 05/26/15 22:19

1 1

ND

0.50

ug/L

05/26/15 22:19

1

1,2-Dichloroethane

2.6

1,2-Dichloropropane

ND

0.50 0.50

ug/L ug/L

05/26/15 22:19 05/26/15 22:19

1 1

9

1,3-Dichlorobenzene 1,4-Dichlorobenzene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 22:19 05/26/15 22:19

1 1

10

Benzene

ND

0.50

ug/L

05/26/15 22:19

1

Bromoform Bromomethane

ND ND

1.0 0.50

ug/L ug/L

05/26/15 22:19 05/26/15 22:19

1 1

Carbon tetrachloride

ND

0.50

ug/L

05/26/15 22:19

1

Chlorobenzene

ND

0.50

ug/L

05/26/15 22:19

1

Dibromochloromethane Chloroethane

ND ND

0.50 1.0

ug/L ug/L

05/26/15 22:19 05/26/15 22:19

1 1

Chloroform

ND

0.50

ug/L

05/26/15 22:19

1

Chloromethane cis-1,3-Dichloropropene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 22:19 05/26/15 22:19

1 1

Bromodichloromethane

ND

0.50

ug/L

05/26/15 22:19

1

Ethylbenzene Methylene Chloride

ND ND

0.50 2.0

ug/L ug/L

05/26/15 22:19 05/26/15 22:19

1 1

Tetrachloroethene

7.2

Toluene trans-1,2-Dichloroethene

ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 22:19 05/26/15 22:19 05/26/15 22:19

1 1 1

trans-1,3-Dichloropropene

ND

Trichloroethene

11

Trichlorofluoromethane

ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 22:19 05/26/15 22:19 05/26/15 22:19

1 1 1

Vinyl chloride

ND

0.50

ug/L

05/26/15 22:19

1

Analyzed 05/26/15 22:19 05/26/15 22:19 05/26/15 22:19

Dil Fac 1 1 1

05/26/15 22:19 05/26/15 22:19 05/26/15 22:19

1 1 1

Prepared

Analyzed 06/23/15 23:33

Dil Fac 1

Prepared

Analyzed 06/23/15 23:33 06/23/15 23:33 06/23/15 23:33

Dil Fac 1 1 1

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr)

%Recovery Qualifier 102 102 100 100 102 102

Limits 80 - 128 76 - 132 80 - 120

Prepared

80 - 120 76 - 132 80 - 128

Method: 624 - Volatile Organic Compounds (GC/MS) - RA Analyte Acrolein Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

Result Qualifier ND H %Recovery Qualifier 107 110 102

RL 5.0 Limits 80 - 128 76 - 132 80 - 120

MDL Unit ug/L

D

TestAmerica Irvine

Page 6 of 76

6/25/2015

8

11 12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-58-20150521

Lab Sample ID: 440-110716-1

Date Collected: 05/21/15 08:15 Date Received: 05/21/15 16:53

Matrix: Water

1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) Analyte 1,2,4-Trichlorobenzene

1

Result Qualifier ND ND

RL 0.96 0.96

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

Dil Fac 1 1

5 6

ND

0.48

ug/L

05/24/15 08:31 06/02/15 13:35

1

1,3-Dichlorobenzene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 13:35

1

7

1,4-Dichlorobenzene 2,4,5-Trichlorophenol

ND ND

0.48 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

8

2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol

ND ND ND

0.96 1.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

9

2,4-Dinitrophenol 2,4-Dinitrotoluene

ND ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

10

2,6-Dinitrotoluene

ND

4.8

ug/L

05/24/15 08:31 06/02/15 13:35

1

2-Chloronaphthalene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 13:35

1

11

2-Chlorophenol 2-Methylnaphthalene

ND ND

0.96 0.96

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

12

2-Methylphenol

ND

1.9

ug/L

05/24/15 08:31 06/02/15 13:35

1

2-Nitroaniline 2-Nitrophenol

ND ND

4.8 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

13

3,3'-Dichlorobenzidine

ND *

4.8

ug/L

05/24/15 08:31 06/02/15 13:35

1

3-Nitroaniline 4,6-Dinitro-2-methylphenol

ND * ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

4-Bromophenyl phenyl ether 4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether

ND ND ND

0.96 1.9 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

4-Nitroaniline 4-Nitrophenol Acenaphthene

ND * ND ND

4.8 4.8 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

Acenaphthylene Aniline Anthracene

ND ND ND

0.48 9.6 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

Benzidine Benzo[a]anthracene Benzo[a]pyrene

ND * ND ND

9.6 4.8 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

Benzo[b]fluoranthene Benzo[g,h,i]perylene

ND ND

1.9 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

Benzo[k]fluoranthene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 13:35

1

Benzoic acid Benzyl alcohol

ND ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

Bis(2-chloroethoxy)methane

ND

0.48

ug/L

05/24/15 08:31 06/02/15 13:35

1

Bis(2-chloroethyl)ether

ND

0.48

ug/L

05/24/15 08:31 06/02/15 13:35

1

bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate

ND ND

0.48 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

Butyl benzyl phthalate

ND

4.8

ug/L

05/24/15 08:31 06/02/15 13:35

1

Chrysene Di-n-butyl phthalate

ND ND

0.48 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

Di-n-octyl phthalate

ND

4.8

ug/L

05/24/15 08:31 06/02/15 13:35

1

Dibenz(a,h)anthracene Dibenzofuran

ND ND

0.48 0.48

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

Diethyl phthalate

ND

0.96

ug/L

05/24/15 08:31 06/02/15 13:35

1

TestAmerica Irvine

Page 7 of 76

6/25/2015

14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-58-20150521

Lab Sample ID: 440-110716-1

Date Collected: 05/21/15 08:15 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Analyte Dimethyl phthalate Fluoranthene

1

Result Qualifier ND ND

RL 0.48 0.48

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

Dil Fac 1 1

5 6

Fluorene Hexachlorobenzene Hexachlorobutadiene

ND ND ND

0.48 0.96 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

Hexachlorocyclopentadiene Hexachloroethane Indeno[1,2,3-cd]pyrene

ND ND ND

4.8 2.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

Isophorone N-Nitrosodi-n-propylamine

ND ND

0.96 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

N-Nitrosodiphenylamine

ND

0.96

ug/L

05/24/15 08:31 06/02/15 13:35

1

10

Naphthalene Nitrobenzene Pentachlorophenol

ND ND ND

0.96 0.96 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

11

Phenol Phenanthrene Pyrene

ND ND ND

0.96 0.48 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

3-Methylphenol + 4-Methylphenol 4-Chloroaniline

ND ND *

4.8 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1

Surrogate 2,4,6-Tribromophenol 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d6 Terphenyl-d14

%Recovery Qualifier 86 78 72

Limits 40 - 120 50 - 120 30 - 120

Prepared Analyzed 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

Dil Fac 1 1 1

81 78 91

45 - 120 35 - 120 37 - 144

05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35 05/24/15 08:31 06/02/15 13:35

1 1 1

Prepared Analyzed 05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

Dil Fac 1 1

Method: 8081A - Organochlorine Pesticides (GC) Analyte 4,4'-DDD 4,4'-DDE

Result Qualifier ND ND

RL 0.0048 0.0048

MDL Unit ug/L ug/L

D

4,4'-DDT

ND

0.0095

ug/L

05/27/15 07:30 05/28/15 15:21

1

Aldrin alpha-BHC

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

1 1

beta-BHC

ND

0.0095

ug/L

05/27/15 07:30 05/28/15 15:21

1

Chlordane (technical)

ND

0.095

ug/L

05/27/15 07:30 05/28/15 15:21

1

delta-BHC Dieldrin

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

1 1

Endosulfan I

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 15:21

1

Endosulfan II Endosulfan sulfate

ND ND

0.0048 0.0095

ug/L ug/L

05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

1 1

Endrin

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 15:21

1

Endrin aldehyde Endrin ketone

ND ND

0.0095 0.0095

ug/L ug/L

05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

1 1

gamma-BHC (Lindane) Heptachlor Heptachlor epoxide

ND ND ND

0.0095 0.0095 0.0048

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

1 1 1

Methoxychlor Toxaphene

ND ND

0.0048 0.48

ug/L ug/L

05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

1 1

TestAmerica Irvine

Page 8 of 76

6/25/2015

7 8 9

12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-58-20150521

Lab Sample ID: 440-110716-1

Date Collected: 05/21/15 08:15 Date Received: 05/21/15 16:53 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

1

Matrix: Water

3 4

%Recovery Qualifier 62 92

Limits 10 - 139 10 - 150

Prepared Analyzed 05/27/15 07:30 05/28/15 15:21 05/27/15 07:30 05/28/15 15:21

Dil Fac 1 1

Prepared Analyzed 05/27/15 07:30 05/27/15 21:36

Dil Fac 1

7

Method: 8082 - Polychlorinated Biphenyls (PCBs) (GC) Analyte Aroclor 1016

Result Qualifier ND

RL 0.48

MDL Unit ug/L

D

5 6

Aroclor 1221 Aroclor 1232

ND ND

0.48 0.48

ug/L ug/L

05/27/15 07:30 05/27/15 21:36 05/27/15 07:30 05/27/15 21:36

1 1

8

Aroclor 1242 Aroclor 1248 Aroclor 1254

ND ND ND

0.48 0.48 0.48

ug/L ug/L ug/L

05/27/15 07:30 05/27/15 21:36 05/27/15 07:30 05/27/15 21:36 05/27/15 07:30 05/27/15 21:36

1 1 1

9

Aroclor 1260

ND

0.48

ug/L

05/27/15 07:30 05/27/15 21:36

1

Prepared Analyzed 05/27/15 07:30 05/27/15 21:36

Dil Fac 1

Surrogate DCB Decachlorobiphenyl (Surr)

%Recovery Qualifier 83

Limits 29 - 115

Method: 300.0 - Anions, Ion Chromatography Analyte

Result Qualifier

Chloride Nitrate as N Fluoride Nitrite as N

Nitrate Nitrite as N Sulfate

300 4.1 0.58

RL 25

MDL Unit mg/L

0.11 0.50

ND

4.1 570

D

Prepared

Result Qualifier ND

Result Qualifier ND

13

mg/L mg/L

05/21/15 22:18 05/21/15 22:18

1 1

14

0.15

mg/L

05/21/15 22:18

1

0.15 25

mg/L mg/L

05/21/15 22:18 05/21/15 22:41

1 50

RL 2.0

MDL Unit ug/L

Analyzed 05/21/15 23:17

Dil Fac 1

Prepared Analyzed 05/26/15 09:19 06/07/15 04:02

Dil Fac 1

D

Prepared

RL 9.6

EDL Unit pg/L

D

Isotope Dilution 13C-2,3,7,8-TCDD

%Recovery Qualifier 81

Limits 31 - 137

Prepared Analyzed 05/26/15 09:19 06/07/15 04:02

Dil Fac 1

Surrogate 37Cl4-2,3,7,8-TCDD

%Recovery Qualifier 96

Limits 42 - 164

Prepared Analyzed 05/26/15 09:19 06/07/15 04:02

Dil Fac 1

Method: 200.7 Rev 4.4 - Metals (ICP) - Total Recoverable Analyte

Percent sodium

Result Qualifier

0.024

RL 0.000050

MDL Unit %

D

Prepared Analyzed 05/29/15 16:22 06/02/15 17:51

Dil Fac 1

RL 0.00020

MDL Unit mg/L

D

Prepared Analyzed 05/26/15 16:59 05/27/15 16:58

Dil Fac 1

RL 0.0050 0.020

MDL Unit mg/L mg/L

D

Prepared Analyzed 05/26/15 13:18 05/27/15 15:58 05/26/15 13:18 05/27/15 15:58

Dil Fac 1 1

Method: 245.1 - Mercury (CVAA) Analyte Mercury

Result Qualifier ND

Method: 6010B - Metals (ICP) - Total Recoverable Analyte Lead Zinc

Result Qualifier ND ND

12

Dil Fac 50

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Analyte 2,3,7,8-TCDD

11

Analyzed 05/21/15 22:41

Method: 7199 - Chromium, Hexavalent (IC) - Dissolved Analyte Cr (VI)

10

Nickel

ND

0.010

mg/L

05/26/15 13:18 05/27/15 15:58

1

Copper

ND

0.010

mg/L

05/26/15 13:18 05/27/15 15:58

1

TestAmerica Irvine

Page 9 of 76

6/25/2015

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-58-20150521

Lab Sample ID: 440-110716-1

Date Collected: 05/21/15 08:15 Date Received: 05/21/15 16:53

Matrix: Water

Silver Antimony Thallium

Result Qualifier ND ND

RL 0.0050 0.0050

MDL Unit mg/L mg/L

ND ND ND

0.010 0.010 0.010

0.25

Selenium

ND

Manganese

4.2

0.040 0.010 0.020

Arsenic

ND

0.010

Iron

D

Prepared Analyzed 05/26/15 13:18 05/27/15 15:58 05/26/15 13:18 05/27/15 15:58

Dil Fac 1 1

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 15:58 05/26/15 13:18 05/27/15 15:58 05/26/15 13:18 05/27/15 15:58

1 1 1

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 15:58 05/26/15 13:18 05/27/15 15:58 05/26/15 13:18 05/27/15 15:58

1 1 1

mg/L

05/26/15 13:18 05/27/15 18:15

1

Hardness, as CaCO3

Result Qualifier

940

RL 0.33

MDL Unit mg/L

D

MDL Unit mg/L mg/L mg/L

D

Prepared

Analyzed 06/04/15 10:49

Dil Fac 1

Prepared Analyzed 05/22/15 20:15 05/22/15 23:15 05/28/15 15:41 05/22/15 20:07 05/23/15 14:56

Dil Fac 1 1 1

05/21/15 23:54 06/03/15 10:33 06/09/15 16:13

1 1 1

Prepared Analyzed 05/22/15 21:49 05/24/15 13:21

Dil Fac 1

General Chemistry Analyte

Cyanide, Total

ND

RL 0.050 20 0.025

Methylene Blue Active Substances

ND

0.10

0.00 4.4

0.50

mg/L mg/L mg/L

RL 0.050

MDL Unit mg/L

Phosphorus, Total Total Dissolved Solids

Un-ionized Hydrogen Sulfide Nitrogen, Total

Result Qualifier

0.12 1900

General Chemistry - Dissolved Analyte Sulfide, Dissolved

Result Qualifier ND HF

D

TestAmerica Irvine

Page 10 of 76

5 6 7 8 9 10

Method: SM 2340B - Total Hardness (as CaCO3) by calculation - Total Recoverable Analyte

3 4

Method: 6010B - Metals (ICP) - Total Recoverable (Continued) Analyte Chromium Cadmium

1

6/25/2015

11 12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-66-20150521

Lab Sample ID: 440-110716-2

Date Collected: 05/21/15 09:40 Date Received: 05/21/15 16:53

Matrix: Water

1,1,2-Trichloroethane

3 4

Method: 624 - Volatile Organic Compounds (GC/MS) Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane

1

Result Qualifier ND ND ND

RL 0.50 0.50

MDL Unit ug/L ug/L

0.50

D

Prepared

Analyzed 05/26/15 22:47 05/26/15 22:47

Dil Fac 1 1

ug/L

05/26/15 22:47

1

5 6 7

Acrylonitrile

ND H

2.0

ug/L

05/26/15 22:47

1

1,1-Dichloroethane 1,1-Dichloroethene

1.0 17

0.50 0.50

ug/L ug/L

05/26/15 22:47 05/26/15 22:47

1 1

1,2-Dichlorobenzene

ND

0.50

ug/L

05/26/15 22:47

1

1,2-Dichloroethane

15

1,2-Dichloropropane

ND

0.50 0.50

ug/L ug/L

05/26/15 22:47 05/26/15 22:47

1 1

9

1,3-Dichlorobenzene 1,4-Dichlorobenzene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 22:47 05/26/15 22:47

1 1

10

Benzene

ND

0.50

ug/L

05/26/15 22:47

1

Bromoform Bromomethane

ND ND

1.0 0.50

ug/L ug/L

05/26/15 22:47 05/26/15 22:47

1 1

Carbon tetrachloride

ND

0.50

ug/L

05/26/15 22:47

1

Chlorobenzene

ND

0.50

ug/L

05/26/15 22:47

1

Dibromochloromethane Chloroethane

ND ND

0.50 1.0

ug/L ug/L

05/26/15 22:47 05/26/15 22:47

1 1

0.77

0.50

ug/L

05/26/15 22:47

1

Chloromethane cis-1,3-Dichloropropene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 22:47 05/26/15 22:47

1 1

Bromodichloromethane

ND

0.50

ug/L

05/26/15 22:47

1

Ethylbenzene Methylene Chloride

ND ND

0.50 2.0

ug/L ug/L

05/26/15 22:47 05/26/15 22:47

1 1

Tetrachloroethene

61

Toluene trans-1,2-Dichloroethene

ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 22:47 05/26/15 22:47 05/26/15 22:47

1 1 1

trans-1,3-Dichloropropene

ND

Trichloroethene

93

Trichlorofluoromethane

ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 22:47 05/26/15 22:47 05/26/15 22:47

1 1 1

Vinyl chloride

ND

0.50

ug/L

05/26/15 22:47

1

Analyzed 05/26/15 22:47 05/26/15 22:47 05/26/15 22:47

Dil Fac 1 1 1

05/26/15 22:47 05/26/15 22:47 05/26/15 22:47

1 1 1

Prepared

Analyzed 06/24/15 00:01

Dil Fac 1

Prepared

Analyzed 06/24/15 00:01 06/24/15 00:01 06/24/15 00:01

Dil Fac 1 1 1

Chloroform

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr)

%Recovery Qualifier 104 99 101 101 99 104

Limits 80 - 128 76 - 132 80 - 120

Prepared

80 - 120 76 - 132 80 - 128

Method: 624 - Volatile Organic Compounds (GC/MS) - RA Analyte Acrolein Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

Result Qualifier ND H %Recovery Qualifier 113 108 106

RL 5.0 Limits 80 - 128 76 - 132 80 - 120

MDL Unit ug/L

D

TestAmerica Irvine

Page 11 of 76

6/25/2015

8

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Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-66-20150521

Lab Sample ID: 440-110716-2

Date Collected: 05/21/15 09:40 Date Received: 05/21/15 16:53

Matrix: Water

1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) Analyte 1,2,4-Trichlorobenzene

1

Result Qualifier ND ND

RL 0.95 0.95

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

Dil Fac 1 1

5 6

ND

0.47

ug/L

05/24/15 08:31 06/02/15 14:23

1

1,3-Dichlorobenzene

ND

0.47

ug/L

05/24/15 08:31 06/02/15 14:23

1

7

1,4-Dichlorobenzene 2,4,5-Trichlorophenol

ND ND

0.47 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

8

2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol

ND ND ND

0.95 1.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

9

2,4-Dinitrophenol 2,4-Dinitrotoluene

ND ND

4.7 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

10

2,6-Dinitrotoluene

ND

4.7

ug/L

05/24/15 08:31 06/02/15 14:23

1

2-Chloronaphthalene

ND

0.47

ug/L

05/24/15 08:31 06/02/15 14:23

1

11

2-Chlorophenol 2-Methylnaphthalene

ND ND

0.95 0.95

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

12

2-Methylphenol

ND

1.9

ug/L

05/24/15 08:31 06/02/15 14:23

1

2-Nitroaniline 2-Nitrophenol

ND ND

4.7 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

13

3,3'-Dichlorobenzidine

ND *

4.7

ug/L

05/24/15 08:31 06/02/15 14:23

1

3-Nitroaniline 4,6-Dinitro-2-methylphenol

ND * ND

4.7 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

4-Bromophenyl phenyl ether 4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether

ND ND ND

0.95 1.9 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

4-Nitroaniline 4-Nitrophenol Acenaphthene

ND * ND ND

4.7 4.7 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

Acenaphthylene Aniline Anthracene

ND ND ND

0.47 9.5 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

Benzidine Benzo[a]anthracene Benzo[a]pyrene

ND * ND ND

9.5 4.7 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

Benzo[b]fluoranthene Benzo[g,h,i]perylene

ND ND

1.9 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

Benzo[k]fluoranthene

ND

0.47

ug/L

05/24/15 08:31 06/02/15 14:23

1

Benzoic acid Benzyl alcohol

ND ND

4.7 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

Bis(2-chloroethoxy)methane

ND

0.47

ug/L

05/24/15 08:31 06/02/15 14:23

1

Bis(2-chloroethyl)ether

ND

0.47

ug/L

05/24/15 08:31 06/02/15 14:23

1

bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate

ND ND

0.47 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

Butyl benzyl phthalate

ND

4.7

ug/L

05/24/15 08:31 06/02/15 14:23

1

Chrysene Di-n-butyl phthalate

ND ND

0.47 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

Di-n-octyl phthalate

ND

4.7

ug/L

05/24/15 08:31 06/02/15 14:23

1

Dibenz(a,h)anthracene Dibenzofuran

ND ND

0.47 0.47

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

Diethyl phthalate

ND

0.95

ug/L

05/24/15 08:31 06/02/15 14:23

1

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Page 12 of 76

6/25/2015

14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-66-20150521

Lab Sample ID: 440-110716-2

Date Collected: 05/21/15 09:40 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Analyte Dimethyl phthalate Fluoranthene

1

Result Qualifier ND ND

RL 0.47 0.47

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

Dil Fac 1 1

5 6

Fluorene Hexachlorobenzene Hexachlorobutadiene

ND ND ND

0.47 0.95 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

Hexachlorocyclopentadiene Hexachloroethane Indeno[1,2,3-cd]pyrene

ND ND ND

4.7 2.8 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

Isophorone N-Nitrosodi-n-propylamine

ND ND

0.95 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

N-Nitrosodiphenylamine

ND

0.95

ug/L

05/24/15 08:31 06/02/15 14:23

1

10

Naphthalene Nitrobenzene Pentachlorophenol

ND ND ND

0.95 0.95 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

11

Phenol Phenanthrene Pyrene

ND ND ND

0.95 0.47 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

3-Methylphenol + 4-Methylphenol 4-Chloroaniline

ND ND *

4.7 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1

Limits 40 - 120 50 - 120 30 - 120

Prepared Analyzed 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

Dil Fac 1 1 1

45 - 120 35 - 120 37 - 144

05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23 05/24/15 08:31 06/02/15 14:23

1 1 1

Prepared Analyzed 05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

Dil Fac 1 1

Surrogate 2,4,6-Tribromophenol 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d6 Terphenyl-d14

%Recovery Qualifier 92 83 78 92 90 109

Method: 8081A - Organochlorine Pesticides (GC) Analyte 4,4'-DDD 4,4'-DDE

Result Qualifier ND ND

RL 0.0048 0.0048

MDL Unit ug/L ug/L

D

4,4'-DDT

ND

0.0096

ug/L

05/27/15 07:30 05/28/15 15:35

1

Aldrin alpha-BHC

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

1 1

beta-BHC

ND

0.0096

ug/L

05/27/15 07:30 05/28/15 15:35

1

Chlordane (technical)

ND

0.096

ug/L

05/27/15 07:30 05/28/15 15:35

1

delta-BHC Dieldrin

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

1 1

Endosulfan I

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 15:35

1

Endosulfan II Endosulfan sulfate

ND ND

0.0048 0.0096

ug/L ug/L

05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

1 1

Endrin

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 15:35

1

Endrin aldehyde Endrin ketone

ND ND

0.0096 0.0096

ug/L ug/L

05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

1 1

gamma-BHC (Lindane) Heptachlor Heptachlor epoxide

ND ND ND

0.0096 0.0096 0.0048

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

1 1 1

Methoxychlor Toxaphene

ND ND

0.0048 0.48

ug/L ug/L

05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

1 1

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6/25/2015

7 8 9

12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-66-20150521

Lab Sample ID: 440-110716-2

Date Collected: 05/21/15 09:40 Date Received: 05/21/15 16:53 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

1

Matrix: Water

3 4

%Recovery Qualifier 68 94

Limits 10 - 139 10 - 150

Prepared Analyzed 05/27/15 07:30 05/28/15 15:35 05/27/15 07:30 05/28/15 15:35

Dil Fac 1 1

Prepared Analyzed 05/27/15 07:30 05/27/15 21:51

Dil Fac 1

7

Method: 8082 - Polychlorinated Biphenyls (PCBs) (GC) Analyte Aroclor 1016

Result Qualifier ND

RL 0.48

MDL Unit ug/L

D

5 6

Aroclor 1221 Aroclor 1232

ND ND

0.48 0.48

ug/L ug/L

05/27/15 07:30 05/27/15 21:51 05/27/15 07:30 05/27/15 21:51

1 1

8

Aroclor 1242 Aroclor 1248 Aroclor 1254

ND ND ND

0.48 0.48 0.48

ug/L ug/L ug/L

05/27/15 07:30 05/27/15 21:51 05/27/15 07:30 05/27/15 21:51 05/27/15 07:30 05/27/15 21:51

1 1 1

9

Aroclor 1260

ND

0.48

ug/L

05/27/15 07:30 05/27/15 21:51

1

Prepared Analyzed 05/27/15 07:30 05/27/15 21:51

Dil Fac 1

Surrogate DCB Decachlorobiphenyl (Surr)

%Recovery Qualifier 86

Limits 29 - 115

Method: 300.0 - Anions, Ion Chromatography Analyte

Result Qualifier

Chloride Nitrate as N

190 11

RL 25

MDL Unit mg/L

D

Prepared

13

50 1

14

5.5 0.50

mg/L mg/L

05/21/15 23:11 05/21/15 22:56

Nitrite as N

ND

0.15

mg/L

05/21/15 22:56

1

11 270

7.5 25

mg/L mg/L

05/21/15 23:11 05/21/15 23:11

50 50

RL 2.0

MDL Unit ug/L

Analyzed 05/22/15 00:05

Dil Fac 1

Prepared Analyzed 05/26/15 09:19 06/07/15 04:44

Dil Fac 1

Method: 7199 - Chromium, Hexavalent (IC) - Dissolved Result Qualifier ND

D

Prepared

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Analyte 2,3,7,8-TCDD

Result Qualifier ND

RL 9.7

EDL Unit pg/L

D

Isotope Dilution 13C-2,3,7,8-TCDD

%Recovery Qualifier 79

Limits 31 - 137

Prepared Analyzed 05/26/15 09:19 06/07/15 04:44

Dil Fac 1

Surrogate 37Cl4-2,3,7,8-TCDD

%Recovery Qualifier 101

Limits 42 - 164

Prepared Analyzed 05/26/15 09:19 06/07/15 04:44

Dil Fac 1

Method: 200.7 Rev 4.4 - Metals (ICP) - Total Recoverable Analyte

Percent sodium

Result Qualifier

0.012

RL 0.000050

MDL Unit %

D

Prepared Analyzed 05/29/15 16:22 06/02/15 22:05

Dil Fac 1

RL 0.00020

MDL Unit mg/L

D

Prepared Analyzed 05/26/15 16:59 05/27/15 17:01

Dil Fac 1

RL 0.0050 0.020

MDL Unit mg/L mg/L

D

Prepared Analyzed 05/26/15 13:18 05/27/15 21:12 05/26/15 13:18 05/27/15 21:12

Dil Fac 1 1

Method: 245.1 - Mercury (CVAA) Analyte Mercury

Result Qualifier ND

Method: 6010B - Metals (ICP) - Total Recoverable Analyte Lead Zinc

Result Qualifier ND ND

Nickel

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:12

1

Copper

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:12

1

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Page 14 of 76

12

Dil Fac 50

ND

Analyte Cr (VI)

11

Analyzed 05/21/15 23:11

Fluoride

Nitrate Nitrite as N Sulfate

10

6/25/2015

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-66-20150521

Lab Sample ID: 440-110716-2

Date Collected: 05/21/15 09:40 Date Received: 05/21/15 16:53

Matrix: Water

Silver Antimony Thallium

Result Qualifier ND ND

RL 0.0050 0.0050

MDL Unit mg/L mg/L

ND ND ND

0.010 0.010 0.010

0.051

D

Prepared Analyzed 05/26/15 13:18 05/27/15 21:12 05/26/15 13:18 05/27/15 21:12

Dil Fac 1 1

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:12 05/26/15 13:18 05/27/15 21:12 05/26/15 13:18 05/27/15 21:12

1 1 1

Selenium Manganese

ND ND

0.040 0.010 0.020

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:12 05/26/15 13:18 05/27/15 21:12 05/26/15 13:18 05/27/15 21:12

1 1 1

Arsenic

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:12

1

Iron

Hardness, as CaCO3

Result Qualifier

640

RL 0.33

MDL Unit mg/L

D

MDL Unit mg/L mg/L mg/L

D

Prepared

Analyzed 06/04/15 10:49

Dil Fac 1

Prepared Analyzed 05/22/15 20:15 05/22/15 23:16 05/28/15 15:41 05/22/15 20:07 05/23/15 14:56

Dil Fac 1 1 1

05/21/15 23:55 06/03/15 10:33 06/09/15 16:13

1 1 1

Prepared Analyzed 05/22/15 21:49 05/24/15 13:21

Dil Fac 1

General Chemistry Analyte

Cyanide, Total

ND

RL 0.050 10 0.025

Methylene Blue Active Substances

ND

0.10

0.00 11

0.50

mg/L mg/L mg/L

RL 0.050

MDL Unit mg/L

Phosphorus, Total Total Dissolved Solids

Un-ionized Hydrogen Sulfide Nitrogen, Total

Result Qualifier

0.065 1100

General Chemistry - Dissolved Analyte Sulfide, Dissolved

Result Qualifier ND HF

D

TestAmerica Irvine

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5 6 7 8 9 10

Method: SM 2340B - Total Hardness (as CaCO3) by calculation - Total Recoverable Analyte

3 4

Method: 6010B - Metals (ICP) - Total Recoverable (Continued) Analyte Chromium Cadmium

1

6/25/2015

11 12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-53-20150521

Lab Sample ID: 440-110716-3

Date Collected: 05/21/15 10:20 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 624 - Volatile Organic Compounds (GC/MS) Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane

1

Result Qualifier ND ND

RL 0.50 0.50

MDL Unit ug/L ug/L

0.50

D

Prepared

Analyzed 05/26/15 23:15 05/26/15 23:15

Dil Fac 1 1

ug/L

05/26/15 23:15

1

5 6

1,1,2-Trichloroethane

ND

Acrylonitrile

ND H

2.0

ug/L

05/26/15 23:15

1

1,1-Dichloroethane 1,1-Dichloroethene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

1,2-Dichlorobenzene

ND

0.50

ug/L

05/26/15 23:15

1

1,2-Dichloroethane 1,2-Dichloropropane

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

9

1,3-Dichlorobenzene 1,4-Dichlorobenzene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

10

Benzene

ND

0.50

ug/L

05/26/15 23:15

1

Bromoform Bromomethane

ND ND

1.0 0.50

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

Carbon tetrachloride

ND

0.50

ug/L

05/26/15 23:15

1

12

Chlorobenzene Dibromochloromethane

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

13

Chloroethane

ND

1.0

ug/L

05/26/15 23:15

1

Chloroform

ND

0.50

ug/L

05/26/15 23:15

1

Chloromethane cis-1,3-Dichloropropene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

Bromodichloromethane

ND

0.50

ug/L

05/26/15 23:15

1

Ethylbenzene Methylene Chloride

ND ND

0.50 2.0

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

Tetrachloroethene

2.6

0.50

ug/L

05/26/15 23:15

1

Toluene trans-1,2-Dichloroethene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:15 05/26/15 23:15

1 1

trans-1,3-Dichloropropene

ND

Trichloroethene

3.7

Trichlorofluoromethane

ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 23:15 05/26/15 23:15 05/26/15 23:15

1 1 1

Vinyl chloride

ND

0.50

ug/L

05/26/15 23:15

1

Analyzed 05/26/15 23:15 05/26/15 23:15 05/26/15 23:15

Dil Fac 1 1 1

05/26/15 23:15 05/26/15 23:15 05/26/15 23:15

1 1 1

Prepared

Analyzed 06/24/15 00:30

Dil Fac 1

Prepared

Analyzed 06/24/15 00:30 06/24/15 00:30 06/24/15 00:30

Dil Fac 1 1 1

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr)

%Recovery Qualifier 106 101 100 100 101 106

Limits 80 - 128 76 - 132 80 - 120

Prepared

80 - 120 76 - 132 80 - 128

Method: 624 - Volatile Organic Compounds (GC/MS) - RA Analyte Acrolein Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

Result Qualifier ND H %Recovery Qualifier 107 109 101

RL 5.0 Limits 80 - 128 76 - 132 80 - 120

MDL Unit ug/L

D

TestAmerica Irvine

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6/25/2015

7 8

11

14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-53-20150521

Lab Sample ID: 440-110716-3

Date Collected: 05/21/15 10:20 Date Received: 05/21/15 16:53

Matrix: Water

1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) Analyte 1,2,4-Trichlorobenzene

1

Result Qualifier ND ND

RL 0.95 0.95

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

Dil Fac 1 1

5 6

ND

0.48

ug/L

05/24/15 08:31 06/02/15 14:47

1

1,3-Dichlorobenzene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 14:47

1

7

1,4-Dichlorobenzene 2,4,5-Trichlorophenol

ND ND

0.48 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

8

2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol

ND ND ND

0.95 1.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

9

2,4-Dinitrophenol 2,4-Dinitrotoluene

ND ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

10

2,6-Dinitrotoluene

ND

4.8

ug/L

05/24/15 08:31 06/02/15 14:47

1

2-Chloronaphthalene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 14:47

1

11

2-Chlorophenol 2-Methylnaphthalene

ND ND

0.95 0.95

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

12

2-Methylphenol

ND

1.9

ug/L

05/24/15 08:31 06/02/15 14:47

1

2-Nitroaniline 2-Nitrophenol

ND ND

4.8 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

13

3,3'-Dichlorobenzidine

ND *

4.8

ug/L

05/24/15 08:31 06/02/15 14:47

1

3-Nitroaniline 4,6-Dinitro-2-methylphenol

ND * ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

4-Bromophenyl phenyl ether 4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether

ND ND ND

0.95 1.9 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

4-Nitroaniline 4-Nitrophenol Acenaphthene

ND * ND ND

4.8 4.8 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

Acenaphthylene Aniline Anthracene

ND ND ND

0.48 9.5 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

Benzidine Benzo[a]anthracene Benzo[a]pyrene

ND * ND ND

9.5 4.8 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

Benzo[b]fluoranthene Benzo[g,h,i]perylene

ND ND

1.9 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

Benzo[k]fluoranthene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 14:47

1

Benzoic acid Benzyl alcohol

ND ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

Bis(2-chloroethoxy)methane

ND

0.48

ug/L

05/24/15 08:31 06/02/15 14:47

1

Bis(2-chloroethyl)ether

ND

0.48

ug/L

05/24/15 08:31 06/02/15 14:47

1

bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate

ND ND

0.48 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

Butyl benzyl phthalate

ND

4.8

ug/L

05/24/15 08:31 06/02/15 14:47

1

Chrysene Di-n-butyl phthalate

ND ND

0.48 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

Di-n-octyl phthalate

ND

4.8

ug/L

05/24/15 08:31 06/02/15 14:47

1

Dibenz(a,h)anthracene Dibenzofuran

ND ND

0.48 0.48

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

Diethyl phthalate

ND

0.95

ug/L

05/24/15 08:31 06/02/15 14:47

1

TestAmerica Irvine

Page 17 of 76

6/25/2015

14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-53-20150521

Lab Sample ID: 440-110716-3

Date Collected: 05/21/15 10:20 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Analyte Dimethyl phthalate Fluoranthene

1

Result Qualifier ND ND

RL 0.48 0.48

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

Dil Fac 1 1

5 6

Fluorene Hexachlorobenzene Hexachlorobutadiene

ND ND ND

0.48 0.95 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

Hexachlorocyclopentadiene Hexachloroethane Indeno[1,2,3-cd]pyrene

ND ND ND

4.8 2.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

Isophorone N-Nitrosodi-n-propylamine

ND ND

0.95 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

N-Nitrosodiphenylamine

ND

0.95

ug/L

05/24/15 08:31 06/02/15 14:47

1

10

Naphthalene Nitrobenzene Pentachlorophenol

ND ND ND

0.95 0.95 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

11

Phenol Phenanthrene Pyrene

ND ND ND

0.95 0.48 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

3-Methylphenol + 4-Methylphenol 4-Chloroaniline

ND ND *

4.8 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1

Limits 40 - 120 50 - 120 30 - 120

Prepared Analyzed 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

Dil Fac 1 1 1

45 - 120 35 - 120 37 - 144

05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47 05/24/15 08:31 06/02/15 14:47

1 1 1

Prepared Analyzed 05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

Dil Fac 1 1

Surrogate 2,4,6-Tribromophenol 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d6 Terphenyl-d14

%Recovery Qualifier 100 90 80 82 80 107

Method: 8081A - Organochlorine Pesticides (GC) Analyte 4,4'-DDD 4,4'-DDE

Result Qualifier ND ND

RL 0.0048 0.0048

MDL Unit ug/L ug/L

D

4,4'-DDT

ND

0.0095

ug/L

05/27/15 07:30 05/28/15 15:48

1

Aldrin alpha-BHC

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

1 1

beta-BHC

ND

0.0095

ug/L

05/27/15 07:30 05/28/15 15:48

1

Chlordane (technical)

ND

0.095

ug/L

05/27/15 07:30 05/28/15 15:48

1

delta-BHC Dieldrin

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

1 1

Endosulfan I

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 15:48

1

Endosulfan II Endosulfan sulfate

ND ND

0.0048 0.0095

ug/L ug/L

05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

1 1

Endrin

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 15:48

1

Endrin aldehyde Endrin ketone

ND ND

0.0095 0.0095

ug/L ug/L

05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

1 1

gamma-BHC (Lindane) Heptachlor Heptachlor epoxide

ND ND ND

0.0095 0.0095 0.0048

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

1 1 1

Methoxychlor Toxaphene

ND ND

0.0048 0.48

ug/L ug/L

05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

1 1

TestAmerica Irvine

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6/25/2015

7 8 9

12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-53-20150521

Lab Sample ID: 440-110716-3

Date Collected: 05/21/15 10:20 Date Received: 05/21/15 16:53 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

1

Matrix: Water

3 4

%Recovery Qualifier 49 75

Limits 10 - 139 10 - 150

Prepared Analyzed 05/27/15 07:30 05/28/15 15:48 05/27/15 07:30 05/28/15 15:48

Dil Fac 1 1

Prepared Analyzed 05/27/15 07:30 05/27/15 22:06

Dil Fac 1

7

Method: 8082 - Polychlorinated Biphenyls (PCBs) (GC) Analyte Aroclor 1016

Result Qualifier ND

RL 0.48

MDL Unit ug/L

D

5 6

Aroclor 1221 Aroclor 1232

ND ND

0.48 0.48

ug/L ug/L

05/27/15 07:30 05/27/15 22:06 05/27/15 07:30 05/27/15 22:06

1 1

8

Aroclor 1242 Aroclor 1248 Aroclor 1254

ND ND ND

0.48 0.48 0.48

ug/L ug/L ug/L

05/27/15 07:30 05/27/15 22:06 05/27/15 07:30 05/27/15 22:06 05/27/15 07:30 05/27/15 22:06

1 1 1

9

Aroclor 1260

ND

0.48

ug/L

05/27/15 07:30 05/27/15 22:06

1

Prepared Analyzed 05/27/15 07:30 05/27/15 22:06

Dil Fac 1

Surrogate DCB Decachlorobiphenyl (Surr)

%Recovery Qualifier 72

Limits 29 - 115

Method: 300.0 - Anions, Ion Chromatography Analyte

Result Qualifier

Chloride Nitrate as N Fluoride Nitrite as N

Nitrate Nitrite as N Sulfate

320 3.7 0.51

RL 25

MDL Unit mg/L

0.11 0.50

ND

3.7 450

D

Prepared

Result Qualifier ND

Result Qualifier ND

13

mg/L mg/L

05/21/15 23:26 05/21/15 23:26

1 1

14

0.15

mg/L

05/21/15 23:26

1

0.15 25

mg/L mg/L

05/21/15 23:26 05/21/15 23:41

1 50

RL 2.0

MDL Unit ug/L

Analyzed 05/22/15 01:05

Dil Fac 1

Prepared Analyzed 05/26/15 09:19 06/07/15 05:26

Dil Fac 1

D

Prepared

RL 9.5

EDL Unit pg/L

D

Isotope Dilution 13C-2,3,7,8-TCDD

%Recovery Qualifier 77

Limits 31 - 137

Prepared Analyzed 05/26/15 09:19 06/07/15 05:26

Dil Fac 1

Surrogate 37Cl4-2,3,7,8-TCDD

%Recovery Qualifier 102

Limits 42 - 164

Prepared Analyzed 05/26/15 09:19 06/07/15 05:26

Dil Fac 1

Method: 200.7 Rev 4.4 - Metals (ICP) - Total Recoverable Analyte

Percent sodium

Result Qualifier

0.014

RL 0.000050

MDL Unit %

D

Prepared Analyzed 05/29/15 16:22 06/02/15 22:07

Dil Fac 1

RL 0.00020

MDL Unit mg/L

D

Prepared Analyzed 05/26/15 16:59 05/27/15 17:03

Dil Fac 1

RL 0.0050 0.020

MDL Unit mg/L mg/L

D

Prepared Analyzed 05/26/15 13:18 05/27/15 21:14 05/26/15 13:18 05/27/15 21:14

Dil Fac 1 1

Method: 245.1 - Mercury (CVAA) Analyte Mercury

Result Qualifier ND

Method: 6010B - Metals (ICP) - Total Recoverable Analyte Lead Zinc

Result Qualifier ND ND

12

Dil Fac 50

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Analyte 2,3,7,8-TCDD

11

Analyzed 05/21/15 23:41

Method: 7199 - Chromium, Hexavalent (IC) - Dissolved Analyte Cr (VI)

10

Nickel

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:14

1

Copper

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:14

1

TestAmerica Irvine

Page 19 of 76

6/25/2015

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-53-20150521

Lab Sample ID: 440-110716-3

Date Collected: 05/21/15 10:20 Date Received: 05/21/15 16:53

Matrix: Water

Silver Antimony Thallium

Iron Selenium

Manganese Arsenic

Result Qualifier ND ND

RL 0.0050 0.0050

MDL Unit mg/L mg/L

ND ND ND

0.010 0.010 0.010

0.37

Prepared Analyzed 05/26/15 13:18 05/27/15 21:14 05/26/15 13:18 05/27/15 21:14

Dil Fac 1 1

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:14 05/26/15 13:18 05/27/15 21:14 05/26/15 13:18 05/27/15 21:14

1 1 1

0.056

0.040 0.010 0.020

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:14 05/26/15 13:18 05/27/15 21:14 05/26/15 13:18 05/27/15 21:14

1 1 1

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:14

1

ND

D

Hardness, as CaCO3

Result Qualifier

1000

RL 0.33

MDL Unit mg/L

D

MDL Unit mg/L mg/L mg/L

D

Prepared

Analyzed 06/04/15 10:49

Dil Fac 1

Prepared Analyzed 05/22/15 20:15 05/22/15 23:16 05/28/15 15:41 05/22/15 20:07 05/23/15 14:56

Dil Fac 1 1 1

05/21/15 23:55 06/03/15 10:33 06/09/15 16:13

1 1 1

Prepared Analyzed 05/22/15 21:49 05/24/15 13:21

Dil Fac 1

General Chemistry Analyte

Cyanide, Total

ND

RL 0.050 20 0.025

Methylene Blue Active Substances

ND

0.10

0.00 3.9

0.50

mg/L mg/L mg/L

RL 0.050

MDL Unit mg/L

Phosphorus, Total Total Dissolved Solids

Un-ionized Hydrogen Sulfide Nitrogen, Total

Result Qualifier

0.075 1600

General Chemistry - Dissolved Analyte Sulfide, Dissolved

Result Qualifier ND HF

D

TestAmerica Irvine

Page 20 of 76

5 6 7 8 9 10

Method: SM 2340B - Total Hardness (as CaCO3) by calculation - Total Recoverable Analyte

3 4

Method: 6010B - Metals (ICP) - Total Recoverable (Continued) Analyte Chromium Cadmium

1

6/25/2015

11 12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-54-20150521

Lab Sample ID: 440-110716-4

Date Collected: 05/21/15 12:40 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 624 - Volatile Organic Compounds (GC/MS) Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane

1

Result Qualifier ND ND

1,1,2-Trichloroethane

ND

Acrylonitrile

ND H

1,1-Dichloroethane

ND

1,1-Dichloroethene 1,2-Dichlorobenzene

RL 0.50 0.50

MDL Unit ug/L ug/L

0.50

D

Prepared

Analyzed 05/26/15 23:42 05/26/15 23:42

Dil Fac 1 1

ug/L

05/26/15 23:42

1

2.0

ug/L

05/26/15 23:42

1

1.1

0.50 0.50

ug/L ug/L

05/26/15 23:42 05/26/15 23:42

1 1

ND

0.50

ug/L

05/26/15 23:42

1

0.72

5 6 7 8

1,2-Dichloropropane

ND

0.50 0.50

ug/L ug/L

05/26/15 23:42 05/26/15 23:42

1 1

9

1,3-Dichlorobenzene 1,4-Dichlorobenzene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:42 05/26/15 23:42

1 1

10

Benzene

ND

0.50

ug/L

05/26/15 23:42

1

Bromoform Bromomethane

ND ND

1.0 0.50

ug/L ug/L

05/26/15 23:42 05/26/15 23:42

1 1

Carbon tetrachloride

ND

0.50

ug/L

05/26/15 23:42

1

Chlorobenzene

ND

0.50

ug/L

05/26/15 23:42

1

Dibromochloromethane Chloroethane

ND ND

0.50 1.0

ug/L ug/L

05/26/15 23:42 05/26/15 23:42

1 1

Chloroform

ND

0.50

ug/L

05/26/15 23:42

1

Chloromethane cis-1,3-Dichloropropene

ND ND

0.50 0.50

ug/L ug/L

05/26/15 23:42 05/26/15 23:42

1 1

Bromodichloromethane

ND

0.50

ug/L

05/26/15 23:42

1

Ethylbenzene Methylene Chloride

ND ND

0.50 2.0

ug/L ug/L

05/26/15 23:42 05/26/15 23:42

1 1

Tetrachloroethene

5.7

Toluene trans-1,2-Dichloroethene

ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 23:42 05/26/15 23:42 05/26/15 23:42

1 1 1

trans-1,3-Dichloropropene

ND

Trichloroethene

12

Trichlorofluoromethane

ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 23:42 05/26/15 23:42 05/26/15 23:42

1 1 1

Vinyl chloride

ND

0.50

ug/L

05/26/15 23:42

1

Analyzed 05/26/15 23:42 05/26/15 23:42 05/26/15 23:42

Dil Fac 1 1 1

05/26/15 23:42 05/26/15 23:42 05/26/15 23:42

1 1 1

Prepared

Analyzed 06/24/15 00:58

Dil Fac 1

Prepared

Analyzed 06/24/15 00:58 06/24/15 00:58 06/24/15 00:58

Dil Fac 1 1 1

1,2-Dichloroethane

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr)

%Recovery Qualifier 102 101 101 101 101 102

Limits 80 - 128 76 - 132 80 - 120

Prepared

80 - 120 76 - 132 80 - 128

Method: 624 - Volatile Organic Compounds (GC/MS) - RA Analyte Acrolein Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

Result Qualifier ND H %Recovery Qualifier 109 111 102

RL 5.0 Limits 80 - 128 76 - 132 80 - 120

MDL Unit ug/L

D

TestAmerica Irvine

Page 21 of 76

6/25/2015

11 12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-54-20150521

Lab Sample ID: 440-110716-4

Date Collected: 05/21/15 12:40 Date Received: 05/21/15 16:53

Matrix: Water

1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) Analyte 1,2,4-Trichlorobenzene

1

Result Qualifier ND ND

RL 0.94 0.94

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

Dil Fac 1 1

5 6

ND

0.47

ug/L

05/24/15 08:31 06/02/15 15:11

1

1,3-Dichlorobenzene

ND

0.47

ug/L

05/24/15 08:31 06/02/15 15:11

1

7

1,4-Dichlorobenzene 2,4,5-Trichlorophenol

ND ND

0.47 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

8

2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol

ND ND ND

0.94 1.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

9

2,4-Dinitrophenol 2,4-Dinitrotoluene

ND ND

4.7 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

10

2,6-Dinitrotoluene

ND

4.7

ug/L

05/24/15 08:31 06/02/15 15:11

1

2-Chloronaphthalene

ND

0.47

ug/L

05/24/15 08:31 06/02/15 15:11

1

11

2-Chlorophenol 2-Methylnaphthalene

ND ND

0.94 0.94

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

12

2-Methylphenol

ND

1.9

ug/L

05/24/15 08:31 06/02/15 15:11

1

2-Nitroaniline 2-Nitrophenol

ND ND

4.7 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

13

3,3'-Dichlorobenzidine

ND *

4.7

ug/L

05/24/15 08:31 06/02/15 15:11

1

3-Nitroaniline 4,6-Dinitro-2-methylphenol

ND * ND

4.7 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

4-Bromophenyl phenyl ether 4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether

ND ND ND

0.94 1.9 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

4-Nitroaniline 4-Nitrophenol Acenaphthene

ND * ND ND

4.7 4.7 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

Acenaphthylene Aniline Anthracene

ND ND ND

0.47 9.4 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

Benzidine Benzo[a]anthracene Benzo[a]pyrene

ND * ND ND

9.4 4.7 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

Benzo[b]fluoranthene Benzo[g,h,i]perylene

ND ND

1.9 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

Benzo[k]fluoranthene

ND

0.47

ug/L

05/24/15 08:31 06/02/15 15:11

1

Benzoic acid Benzyl alcohol

ND ND

4.7 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

Bis(2-chloroethoxy)methane

ND

0.47

ug/L

05/24/15 08:31 06/02/15 15:11

1

Bis(2-chloroethyl)ether

ND

0.47

ug/L

05/24/15 08:31 06/02/15 15:11

1

bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate

ND ND

0.47 4.7

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

Butyl benzyl phthalate

ND

4.7

ug/L

05/24/15 08:31 06/02/15 15:11

1

Chrysene Di-n-butyl phthalate

ND ND

0.47 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

Di-n-octyl phthalate

ND

4.7

ug/L

05/24/15 08:31 06/02/15 15:11

1

Dibenz(a,h)anthracene Dibenzofuran

ND ND

0.47 0.47

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

Diethyl phthalate

ND

0.94

ug/L

05/24/15 08:31 06/02/15 15:11

1

TestAmerica Irvine

Page 22 of 76

6/25/2015

14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-54-20150521

Lab Sample ID: 440-110716-4

Date Collected: 05/21/15 12:40 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Analyte Dimethyl phthalate Fluoranthene

1

Result Qualifier ND ND

RL 0.47 0.47

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

Dil Fac 1 1

5 6

Fluorene Hexachlorobenzene Hexachlorobutadiene

ND ND ND

0.47 0.94 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

Hexachlorocyclopentadiene Hexachloroethane Indeno[1,2,3-cd]pyrene

ND ND ND

4.7 2.8 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

Isophorone N-Nitrosodi-n-propylamine

ND ND

0.94 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

N-Nitrosodiphenylamine

ND

0.94

ug/L

05/24/15 08:31 06/02/15 15:11

1

10

Naphthalene Nitrobenzene Pentachlorophenol

ND ND ND

0.94 0.94 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

11

Phenol Phenanthrene Pyrene

ND ND ND

0.94 0.47 0.47

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

3-Methylphenol + 4-Methylphenol 4-Chloroaniline

ND ND *

4.7 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1

Limits 40 - 120 50 - 120 30 - 120

Prepared Analyzed 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

Dil Fac 1 1 1

45 - 120 35 - 120 37 - 144

05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11 05/24/15 08:31 06/02/15 15:11

1 1 1

Prepared Analyzed 05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

Dil Fac 1 1

Surrogate 2,4,6-Tribromophenol 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d6 Terphenyl-d14

%Recovery Qualifier 101 102 82 92 83 117

Method: 8081A - Organochlorine Pesticides (GC) Analyte 4,4'-DDD 4,4'-DDE

Result Qualifier ND ND

RL 0.0048 0.0048

MDL Unit ug/L ug/L

D

4,4'-DDT

ND

0.0096

ug/L

05/27/15 07:30 05/28/15 16:02

1

Aldrin alpha-BHC

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

1 1

beta-BHC

ND

0.0096

ug/L

05/27/15 07:30 05/28/15 16:02

1

Chlordane (technical)

ND

0.096

ug/L

05/27/15 07:30 05/28/15 16:02

1

delta-BHC Dieldrin

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

1 1

Endosulfan I

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 16:02

1

Endosulfan II Endosulfan sulfate

ND ND

0.0048 0.0096

ug/L ug/L

05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

1 1

Endrin

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 16:02

1

Endrin aldehyde Endrin ketone

ND ND

0.0096 0.0096

ug/L ug/L

05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

1 1

gamma-BHC (Lindane) Heptachlor Heptachlor epoxide

ND ND ND

0.0096 0.0096 0.0048

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

1 1 1

Methoxychlor Toxaphene

ND ND

0.0048 0.48

ug/L ug/L

05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

1 1

TestAmerica Irvine

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6/25/2015

7 8 9

12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-54-20150521

Lab Sample ID: 440-110716-4

Date Collected: 05/21/15 12:40 Date Received: 05/21/15 16:53 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

1

Matrix: Water

3 4

%Recovery Qualifier 57 80

Limits 10 - 139 10 - 150

Prepared Analyzed 05/27/15 07:30 05/28/15 16:02 05/27/15 07:30 05/28/15 16:02

Dil Fac 1 1

Prepared Analyzed 05/27/15 07:30 05/27/15 22:22

Dil Fac 1

7

Method: 8082 - Polychlorinated Biphenyls (PCBs) (GC) Analyte Aroclor 1016

Result Qualifier ND

RL 0.48

MDL Unit ug/L

D

5 6

Aroclor 1221 Aroclor 1232

ND ND

0.48 0.48

ug/L ug/L

05/27/15 07:30 05/27/15 22:22 05/27/15 07:30 05/27/15 22:22

1 1

8

Aroclor 1242 Aroclor 1248 Aroclor 1254

ND ND ND

0.48 0.48 0.48

ug/L ug/L ug/L

05/27/15 07:30 05/27/15 22:22 05/27/15 07:30 05/27/15 22:22 05/27/15 07:30 05/27/15 22:22

1 1 1

9

Aroclor 1260

ND

0.48

ug/L

05/27/15 07:30 05/27/15 22:22

1

Prepared Analyzed 05/27/15 07:30 05/27/15 22:22

Dil Fac 1

Surrogate DCB Decachlorobiphenyl (Surr)

%Recovery Qualifier 73

Limits 29 - 115

Method: 300.0 - Anions, Ion Chromatography Analyte

Result Qualifier

Chloride Nitrate as N Fluoride Nitrite as N

Nitrate Nitrite as N Sulfate

450 11 0.86

RL 25

MDL Unit mg/L

5.5 0.50

ND

11 560

D

Prepared

Result Qualifier ND

Result Qualifier ND

13

mg/L mg/L

05/21/15 23:55 05/22/15 00:40

50 1

14

0.15

mg/L

05/22/15 00:40

1

7.5 25

mg/L mg/L

05/21/15 23:55 05/21/15 23:55

50 50

RL 2.0

MDL Unit ug/L

Analyzed 05/22/15 03:41

Dil Fac 1

Prepared Analyzed 05/26/15 09:19 06/07/15 06:07

Dil Fac 1

D

Prepared

RL 9.6

EDL Unit pg/L

D

Isotope Dilution 13C-2,3,7,8-TCDD

%Recovery Qualifier 76

Limits 31 - 137

Prepared Analyzed 05/26/15 09:19 06/07/15 06:07

Dil Fac 1

Surrogate 37Cl4-2,3,7,8-TCDD

%Recovery Qualifier 97

Limits 42 - 164

Prepared Analyzed 05/26/15 09:19 06/07/15 06:07

Dil Fac 1

Method: 200.7 Rev 4.4 - Metals (ICP) - Total Recoverable Analyte

Percent sodium

Result Qualifier

0.026

RL 0.000050

MDL Unit %

D

Prepared Analyzed 05/29/15 16:22 06/02/15 22:10

Dil Fac 1

RL 0.00020

MDL Unit mg/L

D

Prepared Analyzed 05/26/15 16:59 05/27/15 17:06

Dil Fac 1

RL 0.0050 0.020

MDL Unit mg/L mg/L

D

Prepared Analyzed 05/26/15 13:18 05/27/15 21:17 05/26/15 13:18 05/27/15 21:17

Dil Fac 1 1

Method: 245.1 - Mercury (CVAA) Analyte Mercury

Result Qualifier ND

Method: 6010B - Metals (ICP) - Total Recoverable Analyte Lead Zinc

Result Qualifier ND ND

12

Dil Fac 50

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Analyte 2,3,7,8-TCDD

11

Analyzed 05/21/15 23:55

Method: 7199 - Chromium, Hexavalent (IC) - Dissolved Analyte Cr (VI)

10

Nickel

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:17

1

Copper

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:17

1

TestAmerica Irvine

Page 24 of 76

6/25/2015

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-54-20150521

Lab Sample ID: 440-110716-4

Date Collected: 05/21/15 12:40 Date Received: 05/21/15 16:53

Matrix: Water

Silver Antimony Thallium

Result Qualifier ND ND

RL 0.0050 0.0050

MDL Unit mg/L mg/L

ND ND ND

0.010 0.010 0.010

0.080

D

Prepared Analyzed 05/26/15 13:18 05/27/15 21:17 05/26/15 13:18 05/27/15 21:17

Dil Fac 1 1

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:17 05/26/15 13:18 05/27/15 21:17 05/26/15 13:18 05/27/15 21:17

1 1 1

Selenium Manganese

ND ND

0.040 0.010 0.020

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:17 05/26/15 13:18 05/27/15 21:17 05/26/15 13:18 05/27/15 21:17

1 1 1

Arsenic

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:17

1

Iron

Hardness, as CaCO3

Result Qualifier

1200

RL 0.33

MDL Unit mg/L

D

MDL Unit mg/L mg/L mg/L

D

Prepared

Analyzed 06/04/15 10:49

Dil Fac 1

Prepared Analyzed 05/22/15 20:15 05/22/15 23:16 05/28/15 15:41 05/22/15 20:07 05/23/15 14:56

Dil Fac 1 1 1

05/21/15 23:55 06/03/15 10:33 06/09/15 16:13

1 1 1

Prepared Analyzed 05/22/15 21:49 05/24/15 13:21

Dil Fac 1

General Chemistry Analyte

Cyanide, Total

ND

RL 0.050 20 0.025

Methylene Blue Active Substances

ND

0.10

0.00 11

0.50

mg/L mg/L mg/L

RL 0.050

MDL Unit mg/L

Phosphorus, Total Total Dissolved Solids

Un-ionized Hydrogen Sulfide Nitrogen, Total

Result Qualifier

0.056 2200

General Chemistry - Dissolved Analyte Sulfide, Dissolved

Result Qualifier ND HF

D

TestAmerica Irvine

Page 25 of 76

5 6 7 8 9 10

Method: SM 2340B - Total Hardness (as CaCO3) by calculation - Total Recoverable Analyte

3 4

Method: 6010B - Metals (ICP) - Total Recoverable (Continued) Analyte Chromium Cadmium

1

6/25/2015

11 12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-70-20150521

Lab Sample ID: 440-110716-5

Date Collected: 05/21/15 14:15 Date Received: 05/21/15 16:53

Matrix: Water

1,1,2-Trichloroethane Acrylonitrile

3 4

Method: 624 - Volatile Organic Compounds (GC/MS) Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane

1

Result Qualifier ND ND ND

MDL Unit ug/L ug/L

0.50

D

Prepared

Analyzed 05/27/15 00:10 05/27/15 00:10

Dil Fac 1 1

ug/L

05/27/15 00:10

1

5 6 7

2.0

ug/L

05/27/15 00:10

1

0.54 6.5

0.50 0.50

ug/L ug/L

05/27/15 00:10 05/27/15 00:10

1 1

1,2-Dichlorobenzene

ND

0.50

ug/L

05/27/15 00:10

1

1,2-Dichloroethane

5.6

1,2-Dichloropropane

ND

0.50 0.50

ug/L ug/L

05/27/15 00:10 05/27/15 00:10

1 1

9

1,3-Dichlorobenzene 1,4-Dichlorobenzene

ND ND

0.50 0.50

ug/L ug/L

05/27/15 00:10 05/27/15 00:10

1 1

10

Benzene

ND

0.50

ug/L

05/27/15 00:10

1

Bromoform Bromomethane

ND ND

1.0 0.50

ug/L ug/L

05/27/15 00:10 05/27/15 00:10

1 1

Carbon tetrachloride

ND

0.50

ug/L

05/27/15 00:10

1

Chlorobenzene

ND

0.50

ug/L

05/27/15 00:10

1

Dibromochloromethane Chloroethane

ND ND

0.50 1.0

ug/L ug/L

05/27/15 00:10 05/27/15 00:10

1 1

1,1-Dichloroethane 1,1-Dichloroethene

ND H

RL 0.50 0.50

0.50

0.50

ug/L

05/27/15 00:10

1

Chloromethane cis-1,3-Dichloropropene

ND ND

0.50 0.50

ug/L ug/L

05/27/15 00:10 05/27/15 00:10

1 1

Bromodichloromethane

ND

0.50

ug/L

05/27/15 00:10

1

Ethylbenzene Methylene Chloride

ND ND

0.50 2.0

ug/L ug/L

05/27/15 00:10 05/27/15 00:10

1 1

Tetrachloroethene

24

Toluene trans-1,2-Dichloroethene

ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/27/15 00:10 05/27/15 00:10 05/27/15 00:10

1 1 1

trans-1,3-Dichloropropene

ND

Trichloroethene

48

Trichlorofluoromethane

ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/27/15 00:10 05/27/15 00:10 05/27/15 00:10

1 1 1

Vinyl chloride

ND

0.50

ug/L

05/27/15 00:10

1

Analyzed 05/27/15 00:10 05/27/15 00:10 05/27/15 00:10

Dil Fac 1 1 1

05/27/15 00:10 05/27/15 00:10 05/27/15 00:10

1 1 1

Prepared

Analyzed 06/24/15 01:26

Dil Fac 1

Prepared

Analyzed 06/24/15 01:26 06/24/15 01:26 06/24/15 01:26

Dil Fac 1 1 1

Chloroform

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr) 4-Bromofluorobenzene (Surr) Dibromofluoromethane (Surr) Toluene-d8 (Surr)

%Recovery Qualifier 104 103 102 102 103 104

Limits 80 - 128 76 - 132 80 - 120

Prepared

80 - 120 76 - 132 80 - 128

Method: 624 - Volatile Organic Compounds (GC/MS) - RA Analyte Acrolein Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

Result Qualifier ND H %Recovery Qualifier 110 113 106

RL 5.0 Limits 80 - 128 76 - 132 80 - 120

MDL Unit ug/L

D

TestAmerica Irvine

Page 26 of 76

6/25/2015

8

11 12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-70-20150521

Lab Sample ID: 440-110716-5

Date Collected: 05/21/15 14:15 Date Received: 05/21/15 16:53

Matrix: Water

1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) Analyte 1,2,4-Trichlorobenzene

1

Result Qualifier ND ND

RL 0.95 0.95

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

Dil Fac 1 1

5 6

ND

0.48

ug/L

05/24/15 08:31 06/02/15 12:24

1

1,3-Dichlorobenzene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 12:24

1

7

1,4-Dichlorobenzene 2,4,5-Trichlorophenol

ND ND

0.48 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

8

2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol

ND ND ND

0.95 1.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

9

2,4-Dinitrophenol 2,4-Dinitrotoluene

ND ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

10

2,6-Dinitrotoluene

ND

4.8

ug/L

05/24/15 08:31 06/02/15 12:24

1

2-Chloronaphthalene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 12:24

1

11

2-Chlorophenol 2-Methylnaphthalene

ND ND

0.95 0.95

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

12

2-Methylphenol

ND

1.9

ug/L

05/24/15 08:31 06/02/15 12:24

1

2-Nitroaniline 2-Nitrophenol

ND ND

4.8 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

13

3,3'-Dichlorobenzidine

ND *

4.8

ug/L

05/24/15 08:31 06/02/15 12:24

1

3-Nitroaniline 4,6-Dinitro-2-methylphenol

ND * ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

4-Bromophenyl phenyl ether 4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether

ND ND ND

0.95 1.9 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

4-Nitroaniline 4-Nitrophenol Acenaphthene

ND * ND ND

4.8 4.8 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

Acenaphthylene Aniline Anthracene

ND ND ND

0.48 9.5 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

Benzidine Benzo[a]anthracene Benzo[a]pyrene

ND * ND ND

9.5 4.8 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

Benzo[b]fluoranthene Benzo[g,h,i]perylene

ND ND

1.9 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

Benzo[k]fluoranthene

ND

0.48

ug/L

05/24/15 08:31 06/02/15 12:24

1

Benzoic acid Benzyl alcohol

ND ND

4.8 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

Bis(2-chloroethoxy)methane

ND

0.48

ug/L

05/24/15 08:31 06/02/15 12:24

1

Bis(2-chloroethyl)ether

ND

0.48

ug/L

05/24/15 08:31 06/02/15 12:24

1

bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate

ND ND

0.48 4.8

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

Butyl benzyl phthalate

ND

4.8

ug/L

05/24/15 08:31 06/02/15 12:24

1

Chrysene Di-n-butyl phthalate

ND ND

0.48 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

Di-n-octyl phthalate

ND

4.8

ug/L

05/24/15 08:31 06/02/15 12:24

1

Dibenz(a,h)anthracene Dibenzofuran

ND ND

0.48 0.48

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

Diethyl phthalate

ND

0.95

ug/L

05/24/15 08:31 06/02/15 12:24

1

TestAmerica Irvine

Page 27 of 76

6/25/2015

14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-70-20150521

Lab Sample ID: 440-110716-5

Date Collected: 05/21/15 14:15 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Analyte Dimethyl phthalate Fluoranthene

1

Result Qualifier ND ND

RL 0.48 0.48

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

Dil Fac 1 1

5 6

Fluorene Hexachlorobenzene Hexachlorobutadiene

ND ND ND

0.48 0.95 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

Hexachlorocyclopentadiene Hexachloroethane Indeno[1,2,3-cd]pyrene

ND ND ND

4.8 2.9 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

Isophorone N-Nitrosodi-n-propylamine

ND ND

0.95 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

N-Nitrosodiphenylamine

ND

0.95

ug/L

05/24/15 08:31 06/02/15 12:24

1

10

Naphthalene Nitrobenzene Pentachlorophenol

ND ND ND

0.95 0.95 1.9

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

11

Phenol Phenanthrene Pyrene

ND ND ND

0.95 0.48 0.48

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

3-Methylphenol + 4-Methylphenol 4-Chloroaniline

ND ND *

4.8 1.9

ug/L ug/L

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1

Limits 40 - 120 50 - 120 30 - 120

Prepared Analyzed 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

Dil Fac 1 1 1

45 - 120 35 - 120 37 - 144

05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24 05/24/15 08:31 06/02/15 12:24

1 1 1

Prepared Analyzed 05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

Dil Fac 1 1

Surrogate 2,4,6-Tribromophenol 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d6 Terphenyl-d14

%Recovery Qualifier 108 91 74 93 77 103

Method: 8081A - Organochlorine Pesticides (GC) Analyte 4,4'-DDD 4,4'-DDE

Result Qualifier ND ND

RL 0.0048 0.0048

MDL Unit ug/L ug/L

D

4,4'-DDT

ND

0.0095

ug/L

05/27/15 07:30 05/28/15 16:16

1

Aldrin alpha-BHC

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

1 1

beta-BHC

ND

0.0095

ug/L

05/27/15 07:30 05/28/15 16:16

1

Chlordane (technical)

ND

0.095

ug/L

05/27/15 07:30 05/28/15 16:16

1

delta-BHC Dieldrin

ND ND

0.0048 0.0048

ug/L ug/L

05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

1 1

Endosulfan I

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 16:16

1

Endosulfan II Endosulfan sulfate

ND ND

0.0048 0.0095

ug/L ug/L

05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

1 1

Endrin

ND

0.0048

ug/L

05/27/15 07:30 05/28/15 16:16

1

Endrin aldehyde Endrin ketone

ND ND

0.0095 0.0095

ug/L ug/L

05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

1 1

gamma-BHC (Lindane) Heptachlor Heptachlor epoxide

ND ND ND

0.0095 0.0095 0.0048

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

1 1 1

Methoxychlor Toxaphene

ND ND

0.0048 0.48

ug/L ug/L

05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

1 1

TestAmerica Irvine

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6/25/2015

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12 13 14

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-70-20150521

Lab Sample ID: 440-110716-5

Date Collected: 05/21/15 14:15 Date Received: 05/21/15 16:53 Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

1

Matrix: Water

3 4

%Recovery Qualifier 58 81

Limits 10 - 139 10 - 150

Prepared Analyzed 05/27/15 07:30 05/28/15 16:16 05/27/15 07:30 05/28/15 16:16

Dil Fac 1 1

Prepared Analyzed 05/27/15 07:30 05/27/15 22:37

Dil Fac 1

7

Method: 8082 - Polychlorinated Biphenyls (PCBs) (GC) Analyte Aroclor 1016

Result Qualifier ND

RL 0.48

MDL Unit ug/L

D

5 6

Aroclor 1221 Aroclor 1232

ND ND

0.48 0.48

ug/L ug/L

05/27/15 07:30 05/27/15 22:37 05/27/15 07:30 05/27/15 22:37

1 1

8

Aroclor 1242 Aroclor 1248 Aroclor 1254

ND ND ND

0.48 0.48 0.48

ug/L ug/L ug/L

05/27/15 07:30 05/27/15 22:37 05/27/15 07:30 05/27/15 22:37 05/27/15 07:30 05/27/15 22:37

1 1 1

9

Aroclor 1260

ND

0.48

ug/L

05/27/15 07:30 05/27/15 22:37

1

Prepared Analyzed 05/27/15 07:30 05/27/15 22:37

Dil Fac 1

Surrogate DCB Decachlorobiphenyl (Surr)

%Recovery Qualifier 76

Limits 29 - 115

Method: 300.0 - Anions, Ion Chromatography Analyte

Result Qualifier

Chloride Nitrate as N

140 12

RL 25

MDL Unit mg/L

D

Prepared

13

50 1

14

5.5 0.50

mg/L mg/L

05/22/15 01:09 05/22/15 00:55

Nitrite as N

ND

0.15

mg/L

05/22/15 00:55

1

12 130

7.5 25

mg/L mg/L

05/22/15 01:09 05/22/15 01:09

50 50

RL 2.0

MDL Unit ug/L

Analyzed 05/22/15 05:41

Dil Fac 1

Prepared Analyzed 05/26/15 09:19 06/07/15 06:49

Dil Fac 1

Method: 7199 - Chromium, Hexavalent (IC) - Dissolved Result Qualifier ND

D

Prepared

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Analyte 2,3,7,8-TCDD

Result Qualifier ND

RL 9.5

EDL Unit pg/L

D

Isotope Dilution 13C-2,3,7,8-TCDD

%Recovery Qualifier 69

Limits 31 - 137

Prepared Analyzed 05/26/15 09:19 06/07/15 06:49

Dil Fac 1

Surrogate 37Cl4-2,3,7,8-TCDD

%Recovery Qualifier 100

Limits 42 - 164

Prepared Analyzed 05/26/15 09:19 06/07/15 06:49

Dil Fac 1

Method: 200.7 Rev 4.4 - Metals (ICP) - Total Recoverable Analyte

Result Qualifier

Percent sodium

0.0087

RL 0.000050

MDL Unit %

D

Prepared Analyzed 05/29/15 16:22 06/02/15 22:12

Dil Fac 1

RL 0.00020

MDL Unit mg/L

D

Prepared Analyzed 05/26/15 16:59 05/27/15 17:08

Dil Fac 1

RL 0.0050 0.020

MDL Unit mg/L mg/L

D

Prepared Analyzed 05/26/15 13:18 05/27/15 21:19 05/26/15 13:18 05/27/15 21:19

Dil Fac 1 1

Method: 245.1 - Mercury (CVAA) Analyte Mercury

Result Qualifier ND

Method: 6010B - Metals (ICP) - Total Recoverable Analyte Lead Zinc

Result Qualifier ND ND

Nickel

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:19

1

Copper

ND

0.010

mg/L

05/26/15 13:18 05/27/15 21:19

1

TestAmerica Irvine

Page 29 of 76

12

Dil Fac 50

ND

Analyte Cr (VI)

11

Analyzed 05/22/15 01:09

Fluoride

Nitrate Nitrite as N Sulfate

10

6/25/2015

Client Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-70-20150521

Lab Sample ID: 440-110716-5

Date Collected: 05/21/15 14:15 Date Received: 05/21/15 16:53

Matrix: Water

Silver Antimony Thallium

Iron Selenium Manganese Arsenic

Result Qualifier ND ND

RL 0.0050 0.0050

MDL Unit mg/L mg/L

ND ND ND

0.010 0.010 0.010

0.71 0.017 0.046 ND

D

Prepared Analyzed 05/26/15 13:18 05/27/15 21:19 05/26/15 13:18 05/27/15 21:19

Dil Fac 1 1

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:19 05/26/15 13:18 05/27/15 21:19 05/26/15 13:18 05/27/15 21:19

1 1 1

0.040 0.010 0.020

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 21:19 05/26/15 13:18 05/27/15 21:19 05/26/15 13:18 05/27/15 21:19

1 1 1

0.010

mg/L

05/26/15 13:18 05/27/15 21:19

1

Hardness, as CaCO3

Result Qualifier

410

RL 0.33

MDL Unit mg/L

D

MDL Unit mg/L mg/L mg/L

D

Prepared

Analyzed 06/04/15 10:49

Dil Fac 1

Prepared Analyzed 05/22/15 20:15 05/22/15 23:16 05/28/15 15:47 05/22/15 20:07 05/23/15 14:56

Dil Fac 1 1 1

05/21/15 23:55 06/03/15 10:33 06/09/15 16:13

1 1 1

Prepared Analyzed 05/22/15 21:49 05/24/15 13:21

Dil Fac 1

General Chemistry Analyte

Cyanide, Total

ND

RL 0.050 10 0.025

Methylene Blue Active Substances

ND

0.10

0.00 12

0.50

mg/L mg/L mg/L

RL 0.050

MDL Unit mg/L

Phosphorus, Total Total Dissolved Solids

Un-ionized Hydrogen Sulfide Nitrogen, Total

Result Qualifier

0.10 750

General Chemistry - Dissolved Analyte Sulfide, Dissolved

Result Qualifier ND HF

D

TestAmerica Irvine

Page 30 of 76

5 6 7 8 9 10

Method: SM 2340B - Total Hardness (as CaCO3) by calculation - Total Recoverable Analyte

3 4

Method: 6010B - Metals (ICP) - Total Recoverable (Continued) Analyte Chromium Cadmium

1

6/25/2015

11 12 13 14

Method Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2 3

Method 624 625 8081A

Method Description Volatile Organic Compounds (GC/MS) Semivolatile Organic Compounds (GC/MS) Organochlorine Pesticides (GC)

Protocol 40CFR136A EPA SW846

Laboratory TAL IRV TAL IRV TAL IRV

8082 300.0 7199

Polychlorinated Biphenyls (PCBs) (GC) Anions, Ion Chromatography Chromium, Hexavalent (IC)

SW846 MCAWW SW846

TAL IRV TAL IRV TAL IRV

1613B 200.7 Rev 4.4

Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Metals (ICP)

40CFR136A EPA

TAL SAC TAL IRV

245.1

Mercury (CVAA)

EPA

TAL IRV

6010B SM 2340B

Metals (ICP) Total Hardness (as CaCO3) by calculation

SW846 SM

TAL IRV TAL IRV

8

365.3

Phosphorus, Total

EPA

TAL IRV

SM 2540C SM 4500 CN E

Solids, Total Dissolved (TDS) Cyanide, Total

SM SM

TAL IRV TAL IRV

9

SM 4500 S2 D

Sulfide, Total

SM

TAL IRV

SM 5540C SM4500 S2 H Total Nitrogen

Methylene Blue Active Substances (MBAS) Unionized Hydrogen Sulfide Nitrogen, Total

SM SM EPA

TAL IRV TAL IRV TAL IRV

Protocol References: 40CFR136A = "Methods for Organic Chemical Analysis of Municipal Industrial Wastewater", 40CFR, Part 136, Appendix A, October 26, 1984 and subsequent revisions. EPA = US Environmental Protection Agency MCAWW = "Methods For Chemical Analysis Of Water And Wastes", EPA-600/4-79-020, March 1983 And Subsequent Revisions. SM = "Standard Methods For The Examination Of Water And Wastewater", SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL IRV = TestAmerica Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 TAL SAC = TestAmerica Sacramento, 880 Riverside Parkway, West Sacramento, CA 95605, TEL (916)373-5600

TestAmerica Irvine

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6/25/2015

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10 11 12 13 14

Lab Chronicle Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Client Sample ID: MW-58-20150521

Lab Sample ID: 440-110716-1

Date Collected: 05/21/15 08:15 Date Received: 05/21/15 16:53

Matrix: Water

Prep Type Total/NA

Batch Type Analysis

Batch Method 624

Run

Dil Factor 1

Total/NA

Analysis

624

RA

Total/NA

Prep

625

Total/NA

Analysis

625

1

Total/NA Total/NA

Prep Analysis

3510C 8081A

Total/NA Total/NA

Prep Analysis

Total/NA

3 4

Initial Amount 10 mL

Final Amount 10 mL

Batch Number 257343

Prepared or Analyzed Analyst 05/26/15 22:19 WK

Lab TAL IRV

10 mL

10 mL

263076

06/23/15 23:33 AA

TAL IRV

1040 mL

2 mL

257104

05/24/15 08:31 IVA

TAL IRV

1040 mL

2 mL

258691

06/02/15 13:35 DF

TAL IRV

1

1050 mL 1050 mL

2 mL 2 mL

257432 257830

05/27/15 07:30 AP 05/28/15 15:21 KS

TAL IRV TAL IRV

3510C 8082

1

1050 mL 1050 mL

2 mL 2 mL

257432 257621

05/27/15 07:30 AP 05/27/15 21:36 JM

TAL IRV TAL IRV

Analysis

300.0

1

5 mL

256553

05/21/15 22:18 NN

TAL IRV

Total/NA

Analysis

300.0

1

5 mL

256554

05/21/15 22:18 NN

TAL IRV

Total/NA

Analysis

300.0

50

5 mL

256554

05/21/15 22:41 NN

TAL IRV

Dissolved Dissolved

Filtration Analysis

Filtration 7199

1.0 mL 5 mL

1.0 mL

1

256690 256481

05/21/15 18:54 RW 05/21/15 23:17 MN

TAL IRV TAL IRV

12

Total/NA Total/NA

Prep Analysis

1613B 1613B

1

1044.8 mL 1044.8 mL

20 uL 20 uL

74794 76063

05/26/15 09:19 DXD 06/07/15 04:02 SMA

TAL SAC TAL SAC

13 14

1

Total Recoverable

Prep

200.2

25 mL

25 mL

258235

05/29/15 16:22 APS

TAL IRV

Total Recoverable

Analysis

200.7 Rev 4.4

1

25 mL

25 mL

258939

06/02/15 17:51 TK

TAL IRV

Total/NA Total/NA

Prep Analysis

245.1 245.1

1

20 mL 20 mL

20 mL 20 mL

257348 257658

05/26/15 16:59 DB 05/27/15 16:58 EN

TAL IRV TAL IRV

Total Recoverable Total Recoverable

Prep Analysis

3005A 6010B

1

25 mL 25 mL

25 mL 25 mL

257300 257646

05/26/15 13:18 APS 05/27/15 15:58 EN

TAL IRV TAL IRV

Total Recoverable Total Recoverable

Prep Analysis

3005A 6010B

1

25 mL 25 mL

25 mL 25 mL

257300 257677

05/26/15 13:18 APS 05/27/15 18:15 EN

TAL IRV TAL IRV

Total Recoverable

Analysis

SM 2340B

1

258695

06/04/15 10:49 DP

TAL IRV

Total/NA Total/NA

Prep Analysis

365.2/365.3/365 365.3

1

50 mL 50 mL

50 mL 50 mL

256986 256997

05/22/15 20:15 NC 05/22/15 23:15 NC

TAL IRV TAL IRV

Total/NA

Analysis

SM 2540C

1

50 mL

100 mL

257914

05/28/15 15:41 XL

TAL IRV

Total/NA Total/NA

Prep Analysis

Distill/CN SM 4500 CN E

1

50 mL 50 mL

50 mL 50 mL

256984 257068

05/22/15 20:07 EN 05/23/15 14:56 EN

TAL IRV TAL IRV

Dissolved Dissolved

Prep Analysis

SM 4500 S2 B SM 4500 S2 D

1

40 mL 40 mL

40 mL 40 mL

256994 257126

05/22/15 21:49 NC 05/24/15 13:21 NC

TAL IRV TAL IRV

Total/NA

Analysis

SM 5540C

1

100 mL

100 mL

256721

05/21/15 23:54 EN

TAL IRV

Total/NA

Analysis

SM4500 S2 H

1

259091

06/03/15 10:33 TN

TAL IRV

Total/NA

Analysis

Total Nitrogen

1

260389

06/09/15 16:13 TN

TAL IRV

Client Sample ID: MW-66-20150521

Lab Sample ID: 440-110716-2

Date Collected: 05/21/15 09:40 Date Received: 05/21/15 16:53

Matrix: Water

Prep Type Total/NA

Batch Type Analysis

Batch Method 624

Run

Total/NA

Analysis

624

RA

Dil Factor 1 1

Initial Amount 10 mL

Final Amount 10 mL

Batch Number 257343

Prepared or Analyzed Analyst 05/26/15 22:47 WK

Lab TAL IRV

10 mL

10 mL

263076

06/24/15 00:01 AA

TAL IRV

TestAmerica Irvine

Page 32 of 76

6/25/2015

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Lab Chronicle Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-66-20150521

Lab Sample ID: 440-110716-2

Date Collected: 05/21/15 09:40 Date Received: 05/21/15 16:53

Matrix: Water

Batch Type Prep Analysis

Batch Method 625 625

1

Initial Amount 1055 mL 1055 mL

Final Amount 2 mL 2 mL

Batch Number 257104 258691

Prepared or Analyzed Analyst 05/24/15 08:31 IVA 06/02/15 14:23 DF

Lab TAL IRV TAL IRV

Total/NA Total/NA

Prep Analysis

3510C 8081A

1

1045 mL 1045 mL

2 mL 2 mL

257432 257830

05/27/15 07:30 AP 05/28/15 15:35 KS

TAL IRV TAL IRV

Total/NA

Prep

3510C

Total/NA

Analysis

8082

1

1045 mL

2 mL

257432

05/27/15 07:30 AP

TAL IRV

1045 mL

2 mL

257621

05/27/15 21:51 JM

TAL IRV

Total/NA

Analysis

300.0

1

5 mL

256553

05/21/15 22:56 NN

TAL IRV

Total/NA

Analysis

300.0

1

5 mL

256554

05/21/15 22:56 NN

TAL IRV

Total/NA

Analysis

Total/NA

Analysis

300.0

50

5 mL

256553

05/21/15 23:11 NN

TAL IRV

300.0

50

5 mL

256554

05/21/15 23:11 NN

TAL IRV

Dissolved Dissolved

Filtration Analysis

Filtration 7199

1.0 mL

1

1.0 mL 5 mL

256690 256481

05/21/15 18:54 RW 05/22/15 00:05 MN

TAL IRV TAL IRV

Total/NA Total/NA

Prep Analysis

1613B 1613B

1

1035.3 mL 1035.3 mL

20 uL 20 uL

74794 76063

05/26/15 09:19 DXD 06/07/15 04:44 SMA

TAL SAC TAL SAC

Total Recoverable Total Recoverable

Prep Analysis

200.2 200.7 Rev 4.4

1

25 mL 25 mL

25 mL 25 mL

258235 259054

05/29/15 16:22 APS 06/02/15 22:05 EN

TAL IRV TAL IRV

Total/NA Total/NA

Prep Analysis

245.1 245.1

1

20 mL 20 mL

20 mL 20 mL

257348 257658

05/26/15 16:59 DB 05/27/15 17:01 EN

TAL IRV TAL IRV

Total Recoverable Total Recoverable

Prep Analysis

3005A 6010B

1

25 mL 25 mL

25 mL 25 mL

257300 257707

05/26/15 13:18 APS 05/27/15 21:12 EN

TAL IRV TAL IRV

Total Recoverable

Analysis

SM 2340B

1

258695

06/04/15 10:49 DP

TAL IRV

Total/NA Total/NA

Prep Analysis

365.2/365.3/365 365.3

1

50 mL 50 mL

50 mL 50 mL

256986 256997

05/22/15 20:15 NC 05/22/15 23:16 NC

TAL IRV TAL IRV

Total/NA

Analysis

SM 2540C

1

100 mL

100 mL

257914

05/28/15 15:41 XL

TAL IRV

Total/NA Total/NA

Prep Analysis

Distill/CN SM 4500 CN E

1

50 mL 50 mL

50 mL 50 mL

256984 257068

05/22/15 20:07 EN 05/23/15 14:56 EN

TAL IRV TAL IRV

Dissolved Dissolved

Prep Analysis

SM 4500 S2 B SM 4500 S2 D

1

40 mL 40 mL

40 mL 40 mL

256994 257126

05/22/15 21:49 NC 05/24/15 13:21 NC

TAL IRV TAL IRV

Total/NA

Analysis

SM 5540C

1

100 mL

100 mL

256721

05/21/15 23:55 EN

TAL IRV

Total/NA

Analysis

SM4500 S2 H

1

259091

06/03/15 10:33 TN

TAL IRV

Total/NA

Analysis

Total Nitrogen

1

260389

06/09/15 16:13 TN

TAL IRV

Run

Dil Factor

Client Sample ID: MW-53-20150521

Lab Sample ID: 440-110716-3

Date Collected: 05/21/15 10:20 Date Received: 05/21/15 16:53 Batch Type Analysis

Matrix: Water

Batch Method 624

Run RA

Total/NA

Analysis

624

Total/NA Total/NA

Prep Analysis

625 625

Total/NA

Prep

3510C

3 4

Prep Type Total/NA Total/NA

Prep Type Total/NA

1

Dil Factor 1

Initial Amount 10 mL

Final Amount 10 mL

Batch Number 257343

Prepared or Analyzed Analyst 05/26/15 23:15 WK

1

10 mL

10 mL

263076

06/24/15 00:30 AA

TAL IRV

1

1050 mL 1050 mL

2 mL 2 mL

257104 258691

05/24/15 08:31 IVA 06/02/15 14:47 DF

TAL IRV TAL IRV

1050 mL

2 mL

257432

05/27/15 07:30 AP

TAL IRV

Lab TAL IRV

TestAmerica Irvine

Page 33 of 76

6/25/2015

5 6 7 8 9 10 11 12 13 14

Lab Chronicle Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-53-20150521

Lab Sample ID: 440-110716-3

Date Collected: 05/21/15 10:20 Date Received: 05/21/15 16:53 Prep Type Total/NA

Batch Type Analysis

Batch Method 8081A

Total/NA

Prep

3510C

Total/NA

Analysis

8082

Total/NA

Analysis

Total/NA

1

Matrix: Water

3 4

Initial Amount 1050 mL

Final Amount 2 mL

Batch Number 257830

Prepared or Analyzed Analyst 05/28/15 15:48 KS

Lab TAL IRV

1050 mL

2 mL

257432

05/27/15 07:30 AP

TAL IRV

1

1050 mL

2 mL

257621

05/27/15 22:06 JM

TAL IRV

300.0

1

5 mL

256553

05/21/15 23:26 NN

TAL IRV

Analysis

300.0

1

5 mL

256554

05/21/15 23:26 NN

TAL IRV

Total/NA

Analysis

300.0

50

5 mL

256554

05/21/15 23:41 NN

TAL IRV

Dissolved

Filtration

Filtration

256690

05/21/15 18:54 RW

TAL IRV

Dissolved

Analysis

7199

256481

05/22/15 01:05 MN

TAL IRV

Total/NA

Prep

1613B

Total/NA

Analysis

1613B

Total Recoverable Total Recoverable

Prep Analysis

200.2 200.7 Rev 4.4

Total/NA Total/NA

Prep Analysis

245.1 245.1

Total Recoverable Total Recoverable

Prep Analysis

3005A 6010B

Total Recoverable

Analysis

SM 2340B

1

Total/NA Total/NA

Prep Analysis

365.2/365.3/365 365.3

1

50 mL 50 mL

Total/NA

Analysis

SM 2540C

1

Total/NA Total/NA

Prep Analysis

Distill/CN SM 4500 CN E

Dissolved Dissolved

Prep Analysis

Total/NA

Run

Dil Factor 1

1.0 mL 1

1.0 mL

5 mL 1050.5 mL

20 uL

74794

05/26/15 09:19 DXD

TAL SAC

1

1050.5 mL

20 uL

76063

06/07/15 05:26 SMA

TAL SAC

1

25 mL 25 mL

25 mL 25 mL

258235 259054

05/29/15 16:22 APS 06/02/15 22:07 EN

TAL IRV TAL IRV

1

20 mL 20 mL

20 mL 20 mL

257348 257658

05/26/15 16:59 DB 05/27/15 17:03 EN

TAL IRV TAL IRV

1

25 mL 25 mL

25 mL 25 mL

257300 257707

05/26/15 13:18 APS 05/27/15 21:14 EN

TAL IRV TAL IRV

258695

06/04/15 10:49 DP

TAL IRV

50 mL 50 mL

256986 256997

05/22/15 20:15 NC 05/22/15 23:16 NC

TAL IRV TAL IRV

50 mL

100 mL

257914

05/28/15 15:41 XL

TAL IRV

1

50 mL 50 mL

50 mL 50 mL

256984 257068

05/22/15 20:07 EN 05/23/15 14:56 EN

TAL IRV TAL IRV

SM 4500 S2 B SM 4500 S2 D

1

40 mL 40 mL

40 mL 40 mL

256994 257126

05/22/15 21:49 NC 05/24/15 13:21 NC

TAL IRV TAL IRV

Analysis

SM 5540C

1

100 mL

100 mL

256721

05/21/15 23:55 EN

TAL IRV

Total/NA

Analysis

SM4500 S2 H

1

259091

06/03/15 10:33 TN

TAL IRV

Total/NA

Analysis

Total Nitrogen

1

260389

06/09/15 16:13 TN

TAL IRV

Client Sample ID: MW-54-20150521

Lab Sample ID: 440-110716-4

Date Collected: 05/21/15 12:40 Date Received: 05/21/15 16:53

Matrix: Water

Prep Type Total/NA

Batch Type Analysis

Batch Method 624

Run

Total/NA

Analysis

624

RA

Total/NA Total/NA

Prep Analysis

Total/NA Total/NA

Dil Factor 1

Initial Amount 10 mL

Final Amount 10 mL

Batch Number 257343

Prepared or Analyzed Analyst 05/26/15 23:42 WK

Lab TAL IRV

1

10 mL

10 mL

263076

06/24/15 00:58 AA

TAL IRV

625 625

1

1060 mL 1060 mL

2 mL 2 mL

257104 258691

05/24/15 08:31 IVA 06/02/15 15:11 DF

TAL IRV TAL IRV

Prep Analysis

3510C 8081A

1

1045 mL 1045 mL

2 mL 2 mL

257432 257830

05/27/15 07:30 AP 05/28/15 16:02 KS

TAL IRV TAL IRV

Total/NA Total/NA

Prep Analysis

3510C 8082

1

1045 mL 1045 mL

2 mL 2 mL

257432 257621

05/27/15 07:30 AP 05/27/15 22:22 JM

TAL IRV TAL IRV

Total/NA

Analysis

300.0

50

5 mL

256553

05/21/15 23:55 NN

TAL IRV

TestAmerica Irvine

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Lab Chronicle Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Client Sample ID: MW-54-20150521

Lab Sample ID: 440-110716-4

Date Collected: 05/21/15 12:40 Date Received: 05/21/15 16:53

Matrix: Water

3 4

Prep Type Total/NA

Batch Type Analysis

Batch Method 300.0

Batch Number 256554

Prepared or Analyzed Analyst 05/21/15 23:55 NN

Lab TAL IRV

Total/NA

Analysis

300.0

1

5 mL

256553

05/22/15 00:40 NN

TAL IRV

Total/NA

Analysis

300.0

1

5 mL

256554

05/22/15 00:40 NN

TAL IRV

Dissolved Dissolved

Filtration Analysis

Filtration 7199

1.0 mL

1

1.0 mL 5 mL

256690 256481

05/21/15 18:54 RW 05/22/15 03:41 MN

TAL IRV TAL IRV

Total/NA Total/NA

Prep Analysis

1613B 1613B

1

1046.8 mL 1046.8 mL

20 uL 20 uL

74794 76063

05/26/15 09:19 DXD 06/07/15 06:07 SMA

TAL SAC TAL SAC

Total Recoverable Total Recoverable

Prep Analysis

200.2 200.7 Rev 4.4

9

1

25 mL 25 mL

25 mL 25 mL

258235 259054

05/29/15 16:22 APS 06/02/15 22:10 EN

TAL IRV TAL IRV

Total/NA Total/NA

Prep Analysis

245.1 245.1

10

1

20 mL 20 mL

20 mL 20 mL

257348 257658

05/26/15 16:59 DB 05/27/15 17:06 EN

TAL IRV TAL IRV

11

Total Recoverable Total Recoverable

Prep Analysis

3005A 6010B

1

25 mL 25 mL

25 mL 25 mL

257300 257707

05/26/15 13:18 APS 05/27/15 21:17 EN

TAL IRV TAL IRV

12

Total Recoverable Total/NA Total/NA

Analysis

SM 2340B

1

258695

06/04/15 10:49 DP

TAL IRV

Prep Analysis

365.2/365.3/365 365.3

1

50 mL 50 mL

50 mL 50 mL

256986 256997

05/22/15 20:15 NC 05/22/15 23:16 NC

TAL IRV TAL IRV

Total/NA

Analysis

SM 2540C

1

50 mL

100 mL

257914

05/28/15 15:41 XL

TAL IRV

Total/NA Total/NA

Prep Analysis

Distill/CN SM 4500 CN E

1

50 mL 50 mL

50 mL 50 mL

256984 257068

05/22/15 20:07 EN 05/23/15 14:56 EN

TAL IRV TAL IRV

Dissolved

Prep

SM 4500 S2 B

40 mL

40 mL

256994

05/22/15 21:49 NC

TAL IRV

Dissolved

Analysis

SM 4500 S2 D

1

40 mL

40 mL

257126

05/24/15 13:21 NC

TAL IRV

Total/NA

Analysis

SM 5540C

1

100 mL

100 mL

256721

05/21/15 23:55 EN

TAL IRV

Total/NA

Analysis

SM4500 S2 H

1

259091

06/03/15 10:33 TN

TAL IRV

Total/NA

Analysis

Total Nitrogen

1

260389

06/09/15 16:13 TN

TAL IRV

Run

Dil Factor 50

Initial Amount 5 mL

Final Amount

Client Sample ID: MW-70-20150521

Lab Sample ID: 440-110716-5

Date Collected: 05/21/15 14:15 Date Received: 05/21/15 16:53

Matrix: Water

Prep Type Total/NA

Batch Type Analysis

Batch Method 624

Run

Total/NA

Analysis

624

RA

Total/NA Total/NA

Prep Analysis

Total/NA Total/NA

Dil Factor 1

Initial Amount 10 mL

Final Amount 10 mL

Batch Number 257343

Prepared or Analyzed Analyst 05/27/15 00:10 WK

Lab TAL IRV

1

10 mL

10 mL

263076

06/24/15 01:26 AA

TAL IRV

625 625

1

1050 mL 1050 mL

2 mL 2 mL

257104 258691

05/24/15 08:31 IVA 06/02/15 12:24 DF

TAL IRV TAL IRV

Prep Analysis

3510C 8081A

1

1050 mL 1050 mL

2 mL 2 mL

257432 257830

05/27/15 07:30 AP 05/28/15 16:16 KS

TAL IRV TAL IRV

Total/NA Total/NA

Prep Analysis

3510C 8082

1

1050 mL 1050 mL

2 mL 2 mL

257432 257621

05/27/15 07:30 AP 05/27/15 22:37 JM

TAL IRV TAL IRV

Total/NA

Analysis

300.0

1

5 mL

256553

05/22/15 00:55 NN

TAL IRV

Total/NA

Analysis

300.0

1

5 mL

256554

05/22/15 00:55 NN

TAL IRV

Total/NA

Analysis

300.0

50

5 mL

256553

05/22/15 01:09 NN

TAL IRV

Total/NA

Analysis

300.0

50

5 mL

256554

05/22/15 01:09 NN

TAL IRV

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13 14

Lab Chronicle Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Client Sample ID: MW-70-20150521

Lab Sample ID: 440-110716-5

Date Collected: 05/21/15 14:15 Date Received: 05/21/15 16:53 Prep Type Dissolved Dissolved

Batch Type Filtration Analysis

Batch Method Filtration 7199

Total/NA Total/NA

Prep Analysis

1613B 1613B

1

Matrix: Water

3 4

Run

Dil Factor

Final Amount 1.0 mL

1

Initial Amount 1.0 mL 5 mL

Batch Number 256690 256481

Prepared or Analyzed Analyst 05/21/15 18:54 RW 05/22/15 05:41 MN

Lab TAL IRV TAL IRV

1

1053 mL 1053 mL

20 uL 20 uL

74794 76063

05/26/15 09:19 DXD 06/07/15 06:49 SMA

TAL SAC TAL SAC

5 6 7

Total Recoverable

Prep

200.2

25 mL

25 mL

258235

05/29/15 16:22 APS

TAL IRV

Total Recoverable

Analysis

200.7 Rev 4.4

1

25 mL

25 mL

259054

06/02/15 22:12 EN

TAL IRV

Total/NA Total/NA

Prep Analysis

245.1 245.1

1

20 mL 20 mL

20 mL 20 mL

257348 257658

05/26/15 16:59 DB 05/27/15 17:08 EN

TAL IRV TAL IRV

9

Total Recoverable

Prep

3005A

25 mL

25 mL

257300

05/26/15 13:18 APS

TAL IRV

Total Recoverable

Analysis

6010B

1

25 mL

25 mL

257707

05/27/15 21:19 EN

TAL IRV

10

Total Recoverable

Analysis

SM 2340B

1

258695

06/04/15 10:49 DP

TAL IRV

11

Total/NA Total/NA

Prep Analysis

365.2/365.3/365 365.3

1

50 mL 50 mL

50 mL 50 mL

256986 256997

05/22/15 20:15 NC 05/22/15 23:16 NC

TAL IRV TAL IRV

12

Total/NA

Analysis

SM 2540C

1

100 mL

100 mL

257917

05/28/15 15:47 XL

TAL IRV

Total/NA

Prep

Distill/CN

50 mL

50 mL

256984

05/22/15 20:07 EN

TAL IRV

Total/NA

Analysis

SM 4500 CN E

1

50 mL

50 mL

257068

05/23/15 14:56 EN

TAL IRV

Dissolved Dissolved

Prep Analysis

SM 4500 S2 B SM 4500 S2 D

1

40 mL 40 mL

40 mL 40 mL

256994 257126

05/22/15 21:49 NC 05/24/15 13:21 NC

TAL IRV TAL IRV

Total/NA

Analysis

SM 5540C

1

100 mL

100 mL

256721

05/21/15 23:55 EN

TAL IRV

Total/NA

Analysis

SM4500 S2 H

1

259091

06/03/15 10:33 TN

TAL IRV

Total/NA

Analysis

Total Nitrogen

1

260389

06/09/15 16:13 TN

TAL IRV

Laboratory References: TAL IRV = TestAmerica Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 TAL SAC = TestAmerica Sacramento, 880 Riverside Parkway, West Sacramento, CA 95605, TEL (916)373-5600

TestAmerica Irvine

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8

13 14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Method: 624 - Volatile Organic Compounds (GC/MS)

3

Lab Sample ID: MB 440-257343/3 Matrix: Water Analysis Batch: 257343

Client Sample ID: Method Blank Prep Type: Total/NA

5

MB MB Result Qualifier ND ND

Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane

4

RL 0.50 0.50

MDL Unit ug/L ug/L

D

Prepared

Analyzed 05/26/15 19:32 05/26/15 19:32

Dil Fac 1 1

6

1,1,2-Trichloroethane

ND

0.50

ug/L

05/26/15 19:32

1

7

Acrylonitrile 1,1-Dichloroethane

ND ND

2.0 0.50

ug/L ug/L

05/26/15 19:32 05/26/15 19:32

1 1

8

1,1-Dichloroethene

ND

0.50

ug/L

05/26/15 19:32

1

1,2-Dichlorobenzene

ND

0.50

ug/L

05/26/15 19:32

1

1,2-Dichloroethane 1,2-Dichloropropane

ND ND

0.50 0.50

ug/L ug/L

05/26/15 19:32 05/26/15 19:32

1 1

1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzene

ND ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

1 1 1

Bromoform Bromomethane Carbon tetrachloride

ND ND ND

1.0 0.50 0.50

ug/L ug/L ug/L

05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

1 1 1

Chlorobenzene Dibromochloromethane Chloroethane

ND ND ND

0.50 0.50 1.0

ug/L ug/L ug/L

05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

1 1 1

Chloroform Chloromethane cis-1,3-Dichloropropene

ND ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

1 1 1

Bromodichloromethane Ethylbenzene Methylene Chloride

ND ND ND

0.50 0.50 2.0

ug/L ug/L ug/L

05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

1 1 1

Tetrachloroethene Toluene trans-1,2-Dichloroethene

ND ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

1 1 1

trans-1,3-Dichloropropene Trichloroethene Trichlorofluoromethane

ND ND ND

0.50 0.50 0.50

ug/L ug/L ug/L

05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

1 1 1

Vinyl chloride

ND

0.50

ug/L

05/26/15 19:32

1

Analyzed 05/26/15 19:32 05/26/15 19:32 05/26/15 19:32

Dil Fac 1 1 1

MB MB Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

%Recovery Qualifier 103 97 100

Limits 80 - 128 76 - 132 80 - 120

Prepared

Lab Sample ID: LCS 440-257343/4 Matrix: Water Analysis Batch: 257343 Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane Acrylonitrile 1,1-Dichloroethane 1,1-Dichloroethene

Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike Added 25.0 25.0 25.0 250 25.0 25.0

LCS LCS Result Qualifier 26.9 24.6 25.8 199 24.7 26.3

Unit ug/L ug/L ug/L ug/L ug/L ug/L

D

%Rec 108 98 103

%Rec. Limits 70 - 130 63 - 130 70 - 130

79 99 105

48 - 140 64 - 130 70 - 130

TestAmerica Irvine

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QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Method: 624 - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 440-257343/4 Matrix: Water Analysis Batch: 257343

3 Client Sample ID: Lab Control Sample Prep Type: Total/NA

Spike Added 25.0

Analyte 1,2-Dichlorobenzene

LCS LCS Result Qualifier 26.8

Unit ug/L

D

%Rec 107

%Rec. Limits 70 - 130

4 5 6

1,2-Dichloroethane

25.0

25.5

ug/L

102

57 - 138

1,2-Dichloropropane

25.0

27.3

ug/L

109

67 - 130

1,3-Dichlorobenzene

25.0

26.7

ug/L

107

70 - 130

1,4-Dichlorobenzene Benzene

25.0 25.0

25.4 25.7

ug/L ug/L

101 103

70 - 130 68 - 130

8

Bromomethane

25.0

21.6

ug/L

86

64 - 139

Carbon tetrachloride Chlorobenzene

25.0 25.0

27.6 24.6

ug/L ug/L

110 98

60 - 150 70 - 130

9

Dibromochloromethane Chloroethane Chloroform

25.0 25.0 25.0

25.4 22.2 26.5

ug/L ug/L ug/L

102 89 106

69 - 145 64 - 135 70 - 130

Chloromethane cis-1,3-Dichloropropene Bromodichloromethane

25.0 25.0 25.0

20.8 28.4 27.4

ug/L ug/L ug/L

83 113 110

47 - 140 70 - 133 70 - 132

Ethylbenzene Methylene Chloride Tetrachloroethene

25.0 25.0 25.0

26.6 26.1 26.3

ug/L ug/L ug/L

107 104 105

70 - 130 52 - 130 70 - 130

Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene

25.0 25.0 25.0

26.3 27.9 25.9

ug/L ug/L ug/L

105 111 104

70 - 130 70 - 130 70 - 132

Trichloroethene Trichlorofluoromethane Vinyl chloride

25.0 25.0 25.0

28.1 24.5 20.3

ug/L ug/L ug/L

112 98 81

70 - 130 60 - 150 59 - 133

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

LCS LCS %Recovery Qualifier 102 99 100

Sample Sample Result Qualifier ND ND ND

10 11 12 13 14

Limits 80 - 128 76 - 132 80 - 120

Lab Sample ID: 440-109904-M-1 MS Matrix: Water Analysis Batch: 257343 Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane

7

Client Sample ID: Matrix Spike Prep Type: Total/NA Spike Added 25.0 25.0 25.0

MS MS Result Qualifier 27.7 26.0 25.1

Unit ug/L ug/L ug/L

D

%Rec 111 104 100

%Rec. Limits 70 - 130 63 - 130 70 - 130

Acrylonitrile 1,1-Dichloroethane 1,1-Dichloroethene

ND ND ND

250 25.0 25.0

201 24.7 27.0

ug/L ug/L ug/L

81 99 108

38 - 144 65 - 130 70 - 130

1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane

ND ND ND

25.0 25.0 25.0

27.1 25.5 26.0

ug/L ug/L ug/L

108 102 104

70 - 130 56 - 146 69 - 130

1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzene

ND ND 1.5

25.0 25.0 25.0

26.5 24.9 26.6

ug/L ug/L ug/L

106 100 101

70 - 130 70 - 130 66 - 130

Bromomethane

ND

25.0

21.0

ug/L

84

62 - 131

TestAmerica Irvine

Page 38 of 76

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 624 - Volatile Organic Compounds (GC/MS) (Continued)

3

Lab Sample ID: 440-109904-M-1 MS Matrix: Water Analysis Batch: 257343 Analyte Carbon tetrachloride Chlorobenzene

Sample Sample Result Qualifier ND ND

Client Sample ID: Matrix Spike Prep Type: Total/NA Spike Added 25.0 25.0

MS MS Result Qualifier 28.7 24.7

Unit ug/L ug/L

D

%Rec 115 99

%Rec. Limits 60 - 150 70 - 130

Dibromochloromethane Chloroethane Chloroform

ND ND ND

25.0 25.0 25.0

24.7 22.0 25.7

ug/L ug/L ug/L

99 88 103

70 - 148 68 - 130 70 - 130

Chloromethane cis-1,3-Dichloropropene

ND ND

25.0 25.0

21.2 28.1

ug/L ug/L

85 113

39 - 144 70 - 133

Bromodichloromethane

ND

25.0

26.2

ug/L

105

70 - 138

0.52 ND ND

25.0 25.0 25.0

27.7 25.0 28.2

ug/L ug/L ug/L

109 100 113

70 - 130 52 - 130 70 - 137

Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene

2.9 ND ND

25.0 25.0 25.0

29.4 28.5 26.0

ug/L ug/L ug/L

106 114 104

70 - 130 70 - 130 70 - 138

Trichloroethene Trichlorofluoromethane Vinyl chloride

ND ND ND

25.0 25.0 25.0

27.5 25.6 20.9

ug/L ug/L ug/L

110 102 84

70 - 130 60 - 150 50 - 137

Ethylbenzene Methylene Chloride Tetrachloroethene

%Recovery Qualifier 103 95 101

6 7 8 9 10 11 12 13 14

Limits 80 - 128 76 - 132 80 - 120

Lab Sample ID: 440-109904-M-1 MSD Matrix: Water Analysis Batch: 257343 Sample Sample Analyte 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane

Result Qualifier ND ND ND

Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA Spike Added 25.0 25.0 25.0

MSD MSD Result Qualifier 27.9 25.9 25.1

%Rec. Unit ug/L ug/L ug/L

D

RPD

%Rec 112 103 101

Limits 70 - 130 63 - 130 70 - 130

RPD 1 1 0

Limit 20 30 25

Acrylonitrile 1,1-Dichloroethane 1,1-Dichloroethene

ND ND ND

250 25.0 25.0

196 24.6 26.5

ug/L ug/L ug/L

79 98 106

38 - 144 65 - 130 70 - 130

2 0 2

40 20 20

1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane

ND ND ND

25.0 25.0 25.0

26.7 26.0 26.0

ug/L ug/L ug/L

107 104 104

70 - 130 56 - 146 69 - 130

2 2 0

20 20 20

1,3-Dichlorobenzene 1,4-Dichlorobenzene Benzene

ND ND 1.5

25.0 25.0 25.0

26.4 25.4 26.7

ug/L ug/L ug/L

106 102 101

70 - 130 70 - 130 66 - 130

0 2 0

20 20 20

Bromomethane Carbon tetrachloride Chlorobenzene

ND ND ND

25.0 25.0 25.0

21.4 29.2 24.8

ug/L ug/L ug/L

85 117 99

62 - 131 60 - 150 70 - 130

2 2 0

25 25 20

Dibromochloromethane Chloroethane Chloroform

ND ND ND

25.0 25.0 25.0

25.0 22.1 25.7

ug/L ug/L ug/L

100 88 103

70 - 148 68 - 130 70 - 130

1 0 0

25 25 20

Chloromethane cis-1,3-Dichloropropene

ND ND

25.0 25.0

21.5 28.6

ug/L ug/L

86 115

39 - 144 70 - 133

1 2

25 20

TestAmerica Irvine

Page 39 of 76

4 5

MS MS Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

1

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 624 - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: 440-109904-M-1 MSD Matrix: Water Analysis Batch: 257343 Analyte Bromodichloromethane

1

Sample Sample Result Qualifier ND

Ethylbenzene

3 Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA

Spike Added 25.0

MSD MSD Result Qualifier 27.0

Unit ug/L

D

%Rec 108

%Rec. Limits 70 - 138

RPD 3

RPD Limit 20

4 5 6

0.52

25.0

27.7

ug/L

109

70 - 130

0

20

Methylene Chloride Tetrachloroethene

ND ND

25.0 25.0

25.1 28.1

ug/L ug/L

100 112

52 - 130 70 - 137

0 0

20 20

7

Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene

2.9 ND ND

25.0 25.0 25.0

28.9 28.2 26.3

ug/L ug/L ug/L

104 113 105

70 - 130 70 - 130 70 - 138

2 1 1

20 20 25

8

Trichloroethene Trichlorofluoromethane Vinyl chloride

ND ND ND

25.0 25.0 25.0

28.7 25.6 22.3

ug/L ug/L ug/L

115 103 89

70 - 130 60 - 150 50 - 137

4 0 6

20 25 30

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

MSD MSD %Recovery Qualifier 102 97 99

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

12 13 Client Sample ID: Method Blank Prep Type: Total/NA

MB MB Result Qualifier ND MB MB %Recovery Qualifier 108 108 105

RL 5.0

MDL Unit ug/L

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

LCS LCS Result Qualifier 27.9

Unit ug/L

Sample Sample Result Qualifier ND

Analyzed 06/23/15 19:20

Dil Fac 1

Prepared

Analyzed 06/23/15 19:20 06/23/15 19:20 06/23/15 19:20

Dil Fac 1 1 1

D

%Rec 111

%Rec. Limits 10 - 145

Limits 80 - 128 76 - 132 80 - 120

Lab Sample ID: 440-113102-A-1 MS Matrix: Water Analysis Batch: 263076 Analyte Acrolein

Prepared

Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike Added 25.0

LCS LCS %Recovery Qualifier 107 104 104

D

Limits 80 - 128 76 - 132 80 - 120

Lab Sample ID: LCS 440-263076/5 Matrix: Water Analysis Batch: 263076 Analyte Acrolein

10 11

Limits 80 - 128 76 - 132 80 - 120

Lab Sample ID: MB 440-263076/4 Matrix: Water Analysis Batch: 263076 Analyte Acrolein

9

Client Sample ID: Matrix Spike Prep Type: Total/NA Spike Added 25.0

MS MS Result Qualifier 25.8

Unit ug/L

D

%Rec 103

%Rec. Limits 10 - 147

TestAmerica Irvine

Page 40 of 76

6/25/2015

14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 624 - Volatile Organic Compounds (GC/MS) (Continued)

3

Lab Sample ID: 440-113102-A-1 MS Matrix: Water Analysis Batch: 263076 Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

Client Sample ID: Matrix Spike Prep Type: Total/NA

MS MS %Recovery Qualifier 106 106 103

Surrogate Toluene-d8 (Surr) Dibromofluoromethane (Surr) 4-Bromofluorobenzene (Surr)

Limits 80 - 128 76 - 132

6 7

80 - 120

Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA

Sample Sample Result Qualifier ND

Spike Added 25.0

MSD MSD %Recovery Qualifier 107 107 103

Limits 80 - 128 76 - 132 80 - 120

MSD MSD Result Qualifier 25.7

Unit ug/L

D

%Rec 103

%Rec. Limits 10 - 147

RPD 0

RPD Limit 40

1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

9 10 12 13 14

Lab Sample ID: MB 440-257104/1-A Matrix: Water Analysis Batch: 258691

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 257104 MB MB Result Qualifier ND ND

8

11

Method: 625 - Semivolatile Organic Compounds (GC/MS)

Analyte 1,2,4-Trichlorobenzene

4 5

Lab Sample ID: 440-113102-A-1 MSD Matrix: Water Analysis Batch: 263076 Analyte Acrolein

1

RL 1.0 1.0

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

Dil Fac 1 1

ND

0.50

ug/L

05/24/15 08:31 06/02/15 04:02

1

1,3-Dichlorobenzene 1,4-Dichlorobenzene 2,4,5-Trichlorophenol

ND ND ND

0.50 0.50 2.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol

ND ND ND

1.0 2.0 2.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene

ND ND ND

5.0 5.0 5.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

2-Chloronaphthalene 2-Chlorophenol 2-Methylnaphthalene

ND ND ND

0.50 1.0 1.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

2-Methylphenol 2-Nitroaniline 2-Nitrophenol

ND ND ND

2.0 5.0 2.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

3,3'-Dichlorobenzidine 3-Nitroaniline 4,6-Dinitro-2-methylphenol

ND ND ND

5.0 5.0 5.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

4-Bromophenyl phenyl ether 4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether

ND ND ND

1.0 2.0 0.50

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

TestAmerica Irvine

Page 41 of 76

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued)

3

Lab Sample ID: MB 440-257104/1-A Matrix: Water Analysis Batch: 258691 Analyte 4-Nitroaniline

1

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 257104 MB MB Result Qualifier ND

RL 5.0

MDL Unit ug/L

D

Prepared Analyzed 05/24/15 08:31 06/02/15 04:02

Dil Fac 1

4 5 6

4-Nitrophenol

ND

5.0

ug/L

05/24/15 08:31 06/02/15 04:02

1

Acenaphthene

ND

0.50

ug/L

05/24/15 08:31 06/02/15 04:02

1

Acenaphthylene

ND

0.50

ug/L

05/24/15 08:31 06/02/15 04:02

1

Aniline Anthracene

ND ND

10 0.50

ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1

8

Benzidine

ND

10

ug/L

05/24/15 08:31 06/02/15 04:02

1

Benzo[a]anthracene Benzo[a]pyrene

ND ND

5.0 2.0

ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1

9

Benzo[b]fluoranthene Benzo[g,h,i]perylene Benzo[k]fluoranthene

ND ND ND

2.0 5.0 0.50

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Benzoic acid Benzyl alcohol Bis(2-chloroethoxy)methane

ND ND ND

5.0 5.0 0.50

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Bis(2-chloroethyl)ether bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate

ND ND ND

0.50 0.50 5.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Butyl benzyl phthalate Chrysene Di-n-butyl phthalate

ND ND ND

5.0 0.50 2.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Di-n-octyl phthalate Dibenz(a,h)anthracene Dibenzofuran

ND ND ND

5.0 0.50 0.50

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Diethyl phthalate Dimethyl phthalate Fluoranthene

ND ND ND

1.0 0.50 0.50

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Fluorene Hexachlorobenzene Hexachlorobutadiene

ND ND ND

0.50 1.0 2.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Hexachlorocyclopentadiene

ND

5.0

ug/L

05/24/15 08:31 06/02/15 04:02

1

Hexachloroethane Indeno[1,2,3-cd]pyrene

ND ND

3.0 2.0

ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1

Isophorone N-Nitrosodi-n-propylamine N-Nitrosodiphenylamine

ND ND ND

1.0 2.0 1.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Naphthalene Nitrobenzene Pentachlorophenol

ND ND ND

1.0 1.0 2.0

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Phenol Phenanthrene Pyrene

ND ND ND

1.0 0.50 0.50

ug/L ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

3-Methylphenol + 4-Methylphenol 4-Chloroaniline

ND ND

5.0 2.0

ug/L ug/L

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1

Prepared Analyzed 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

Dil Fac 1 1

Surrogate 2,4,6-Tribromophenol 2-Fluorobiphenyl

MB MB %Recovery Qualifier 88 97

Limits 40 - 120 50 - 120

TestAmerica Irvine

Page 42 of 76

6/25/2015

7

10 11 12 13 14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 440-257104/1-A Matrix: Water Analysis Batch: 258691 Surrogate 2-Fluorophenol

86 83 106

Limits 30 - 120 45 - 120 35 - 120 37 - 144

Lab Sample ID: LCS 440-257104/2-A Matrix: Water Analysis Batch: 258691

1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

3 Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 257104

MB MB %Recovery Qualifier 79

Nitrobenzene-d5 Phenol-d6 Terphenyl-d14

Analyte 1,2,4-Trichlorobenzene

1

Prepared Analyzed 05/24/15 08:31 06/02/15 04:02

Dil Fac 1

05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02 05/24/15 08:31 06/02/15 04:02

1 1 1

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 257104 Spike Added 10.0 10.1

LCS LCS Result Qualifier 6.94 7.29

Unit ug/L ug/L

D

%Rec 69 72

%Rec. Limits 44 - 142 47 - 116

10.0

6.79

ug/L

68

32 - 129

1,3-Dichlorobenzene

10.0

6.62

ug/L

66

10 - 150

1,4-Dichlorobenzene 2,4,5-Trichlorophenol

10.0 10.0

6.83 9.63

ug/L ug/L

68 96

20 - 124 49 - 111

2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol

10.0 10.0 10.0

9.03 9.32 8.88

ug/L ug/L ug/L

90 93 89

37 - 144 39 - 135 32 - 119

2,4-Dinitrophenol 2,6-Dinitrotoluene 2-Chloronaphthalene

20.0 10.0 10.0

21.6 9.86 8.13

ug/L ug/L ug/L

108 99 81

50 - 150 50 - 150 60 - 118

2-Chlorophenol 2-Methylnaphthalene 2-Methylphenol

10.0 10.0 10.0

8.42 7.83 8.72

ug/L ug/L ug/L

84 78 87

23 - 134 47 - 101 29 - 122

2-Nitroaniline 2-Nitrophenol 3,3'-Dichlorobenzidine

10.0 10.0 10.0

9.80 9.03 ND *

ug/L ug/L ug/L

98 90 6

47 - 115 29 - 150 10 - 150

3-Nitroaniline 4,6-Dinitro-2-methylphenol 4-Bromophenyl phenyl ether

10.0 20.0 10.0

3.00 J * 21.5 9.01

ug/L ug/L ug/L

30 108 90

43 - 114 10 - 150 53 - 127

4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether 4-Nitroaniline

10.0 10.0 10.0

10.5 8.03 6.16

ug/L ug/L ug/L

105 80 62

22 - 147 25 - 150 45 - 119

4-Nitrophenol Acenaphthene Acenaphthylene

20.0 10.0 10.0

18.5 8.61 8.53

ug/L ug/L ug/L

92 86 85

10 - 132 47 - 145 33 - 145

Aniline Anthracene Benzidine

10.0 10.0 10.0

5.89 J 9.38 6.75 J *

ug/L ug/L ug/L

59 94 68

34 - 110 27 - 133 5 - 66

Benzo[a]anthracene Benzo[a]pyrene Benzo[b]fluoranthene

10.0 10.0 10.0

9.53 10.1 9.80

ug/L ug/L ug/L

95 101 98

33 - 143 17 - 150 24 - 150

Benzo[g,h,i]perylene Benzo[k]fluoranthene Benzoic acid

10.0 10.0 10.0

12.5 9.65 12.0

ug/L ug/L ug/L

125 97 120

10 - 150 11 - 150 22 - 139

Benzyl alcohol

10.0

8.43

ug/L

84

43 - 115

5 6 7 8 9 10 11 12 13 14

TestAmerica Irvine

Page 43 of 76

4

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 440-257104/2-A Matrix: Water Analysis Batch: 258691

3

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 257104

Analyte Bis(2-chloroethoxy)methane Bis(2-chloroethyl)ether

Spike Added 10.0 10.0

%Rec 77 79

%Rec. Limits 33 - 150 12 - 150

bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate Butyl benzyl phthalate

10.0 10.0 10.0

7.59 10.8 10.3

ug/L ug/L ug/L

76 108 103

47 - 103 10 - 150 10 - 150

Chrysene Di-n-butyl phthalate

10.0 10.0

9.87 10.3

ug/L ug/L

99 103

17 - 150 10 - 118

Di-n-octyl phthalate

10.0

10.7

ug/L

107

10 - 146

Dibenz(a,h)anthracene Dibenzofuran Diethyl phthalate

10.0 10.0 10.0

11.2 8.21 8.73

ug/L ug/L ug/L

112 82 87

10 - 150 51 - 109 10 - 114

Dimethyl phthalate Fluoranthene Fluorene

10.0 10.0 10.0

8.66 9.58 8.19

ug/L ug/L ug/L

87 96 82

10 - 112 26 - 137 59 - 121

Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene

10.0 10.0 10.0

8.68 4.77 3.56 J

ug/L ug/L ug/L

87 48 36

10 - 150 24 - 116 10 - 67

Hexachloroethane Indeno[1,2,3-cd]pyrene Isophorone

10.0 10.0 10.0

5.76 11.6 9.74

ug/L ug/L ug/L

58 116 97

40 - 113 10 - 150 21 - 150

N-Nitrosodi-n-propylamine N-Nitrosodiphenylamine

10.0 10.0

8.59 8.53

ug/L ug/L

86 85

10 - 150 54 - 110

Naphthalene

10.0

7.74

ug/L

77

21 - 133

Nitrobenzene Pentachlorophenol

10.0 20.0

8.43 19.5

ug/L ug/L

84 97

35 - 150 14 - 150

Phenol

10.0

8.05

ug/L

80

10 - 112

Phenanthrene Pyrene

10.0 10.0

9.44 9.89

ug/L ug/L

94 99

54 - 120 52 - 115

3-Methylphenol + 4-Methylphenol

10.0

9.16

ug/L

92

40 - 115

4-Chloroaniline

10.0

1.26 J *

ug/L

13

31 - 117

Surrogate 2,4,6-Tribromophenol 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d6 Terphenyl-d14

LCS LCS %Recovery Qualifier 93 78 80

Limits 40 - 120 50 - 120 30 - 120

83 81 91

45 - 120 35 - 120 37 - 144

LCS LCS Result Qualifier 7.71 7.88

Lab Sample ID: LCSD 440-257104/3-A Matrix: Water Analysis Batch: 258691 Analyte 1,2,4-Trichlorobenzene 1,2-Diphenylhydrazine(as Azobenzene) 1,2-Dichlorobenzene

1

Unit ug/L ug/L

D

LCSD LCSD Result Qualifier 7.11

Unit ug/L

D

7 8 9 10 11 12 13 14

%Rec 71

%Rec. Limits 44 - 142

RPD 2

RPD Limit 35

10.1

7.84

ug/L

78

47 - 116

7

35

10.0

6.90

ug/L

69

32 - 129

2

35

TestAmerica Irvine

Page 44 of 76

5 6

Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 257104 Spike Added 10.0

4

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 440-257104/3-A Matrix: Water Analysis Batch: 258691

3

Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 257104

Analyte 1,3-Dichlorobenzene

Spike Added 10.0

LCSD LCSD Result Qualifier 6.63

1,4-Dichlorobenzene

10.0

6.87

2,4,5-Trichlorophenol

10.0

2,4,6-Trichlorophenol

10.0

2,4-Dichlorophenol 2,4-Dimethylphenol

4 5

%Rec 66

%Rec. Limits 10 - 150

RPD 0

RPD Limit 35

ug/L

69

20 - 124

1

35

9.65

ug/L

96

49 - 111

0

35

9.18

ug/L

92

37 - 144

2

35

10.0 10.0

9.37 8.60

ug/L ug/L

94 86

39 - 135 32 - 119

1 3

35 35

8

2,4-Dinitrophenol

20.0

22.3

ug/L

111

50 - 150

3

35

2,6-Dinitrotoluene 2-Chloronaphthalene

10.0 10.0

9.44 8.40

ug/L ug/L

94 84

50 - 150 60 - 118

4 3

35 35

9

2-Chlorophenol 2-Methylnaphthalene 2-Methylphenol

10.0 10.0 10.0

8.23 8.06 8.62

ug/L ug/L ug/L

82 81 86

23 - 134 47 - 101 29 - 122

2 3 1

35 35 35

2-Nitroaniline 2-Nitrophenol 3,3'-Dichlorobenzidine

10.0 10.0 10.0

9.89 9.23 8.21 *

ug/L ug/L ug/L

99 92 82

47 - 115 29 - 150 10 - 150

1 2 171

35 35 35

3-Nitroaniline 4,6-Dinitro-2-methylphenol 4-Bromophenyl phenyl ether

10.0 20.0 10.0

11.6 * 21.6 8.46

ug/L ug/L ug/L

116 108 85

43 - 114 10 - 150 53 - 127

118 1 6

35 35 35

4-Chloro-3-methylphenol 4-Chlorophenyl phenyl ether 4-Nitroaniline

10.0 10.0 10.0

9.91 7.83 11.1 *

ug/L ug/L ug/L

99 78 111

22 - 147 25 - 150 45 - 119

6 3 57

35 35 35

4-Nitrophenol Acenaphthene Acenaphthylene

20.0 10.0 10.0

19.5 8.44 9.07

ug/L ug/L ug/L

97 84 91

10 - 132 47 - 145 33 - 145

5 2 6

35 35 35

Aniline Anthracene Benzidine

10.0 10.0 10.0

7.39 J 9.23 ND

ug/L ug/L ug/L

74 92 48

34 - 110 27 - 133 5 - 66

23 2 35

35 35 35

Benzo[a]anthracene Benzo[a]pyrene Benzo[b]fluoranthene

10.0 10.0 10.0

9.60 10.2 9.48

ug/L ug/L ug/L

96 102 95

33 - 143 17 - 150 24 - 150

1 0 3

35 35 35

Benzo[g,h,i]perylene Benzo[k]fluoranthene Benzoic acid

10.0 10.0 10.0

13.1 9.23 12.2

ug/L ug/L ug/L

131 92 122

10 - 150 11 - 150 22 - 139

5 5 2

35 35 35

Benzyl alcohol Bis(2-chloroethoxy)methane Bis(2-chloroethyl)ether

10.0 10.0 10.0

8.71 9.03 8.16

ug/L ug/L ug/L

87 90 82

43 - 115 33 - 150 12 - 150

3 16 3

35 35 35

bis (2-chloroisopropyl) ether Bis(2-ethylhexyl) phthalate Butyl benzyl phthalate

10.0 10.0 10.0

7.64 11.2 10.3

ug/L ug/L ug/L

76 112 103

47 - 103 10 - 150 10 - 150

1 4 0

35 35 35

Chrysene Di-n-butyl phthalate Di-n-octyl phthalate

10.0 10.0 10.0

9.76 10.3 10.5

ug/L ug/L ug/L

98 103 105

17 - 150 10 - 118 10 - 146

1 0 1

35 35 35

Dibenz(a,h)anthracene Dibenzofuran Diethyl phthalate

10.0 10.0 10.0

11.0 7.94 8.92

ug/L ug/L ug/L

110 79 89

10 - 150 51 - 109 10 - 114

2 3 2

35 35 35

Dimethyl phthalate Fluoranthene Fluorene

10.0 10.0 10.0

8.59 9.45 8.04

ug/L ug/L ug/L

86 95 80

10 - 112 26 - 137 59 - 121

1 1 2

35 35 35

Unit ug/L

D

TestAmerica Irvine

Page 45 of 76

6/25/2015

6 7

10 11 12 13 14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Method: 625 - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 440-257104/3-A Matrix: Water Analysis Batch: 258691

3

Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 257104 Spike Added 10.0

Analyte Hexachlorobenzene

LCSD LCSD Result Qualifier 8.20

Unit ug/L

D

%Rec 82

%Rec. Limits 10 - 150

RPD 6

RPD Limit 35

4 5 6

Hexachlorobutadiene

10.0

5.07

ug/L

51

24 - 116

6

35

Hexachlorocyclopentadiene

10.0

3.59 J

ug/L

36

10 - 67

1

35

Hexachloroethane

10.0

6.01

ug/L

60

40 - 113

4

35

Indeno[1,2,3-cd]pyrene Isophorone

10.0 10.0

11.6 9.83

ug/L ug/L

116 98

10 - 150 21 - 150

0 1

35 35

8

N-Nitrosodi-n-propylamine

10.0

9.13

ug/L

91

10 - 150

6

35

N-Nitrosodiphenylamine Naphthalene

10.0 10.0

8.85 7.96

ug/L ug/L

89 80

54 - 110 21 - 133

4 3

35 35

9

Nitrobenzene Pentachlorophenol Phenol

10.0 20.0 10.0

8.32 19.7 8.50

ug/L ug/L ug/L

83 99 85

35 - 150 14 - 150 10 - 112

1 1 5

35 35 35

Phenanthrene Pyrene 3-Methylphenol + 4-Methylphenol

10.0 10.0 10.0

9.10 9.93 9.23

ug/L ug/L ug/L

91 99 92

54 - 120 52 - 115 40 - 115

4 0 1

35 35 35

4-Chloroaniline

10.0

10.9 *

ug/L

109

31 - 117

159

35

LCSD LCSD %Recovery Qualifier 96

Limits 40 - 120

2-Fluorobiphenyl 2-Fluorophenol

89 80

50 - 120 30 - 120

Nitrobenzene-d5

86

45 - 120

Phenol-d6 Terphenyl-d14

86 97

35 - 120 37 - 144

Surrogate 2,4,6-Tribromophenol

Lab Sample ID: MB 440-257432/1-A Matrix: Water Analysis Batch: 257830

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 257432 MB MB Result Qualifier ND ND ND

10 11 12 13 14

Method: 8081A - Organochlorine Pesticides (GC)

Analyte 4,4'-DDD 4,4'-DDE 4,4'-DDT

7

RL 0.0050 0.0050 0.010

MDL Unit ug/L ug/L ug/L

D

Prepared Analyzed 05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25

Dil Fac 1 1 1

Aldrin alpha-BHC beta-BHC

ND ND ND

0.0050 0.0050 0.010

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25

1 1 1

Chlordane (technical) delta-BHC Dieldrin

ND ND ND

0.10 0.0050 0.0050

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25

1 1 1

Endosulfan I Endosulfan II Endosulfan sulfate

ND ND ND

0.0050 0.0050 0.010

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25

1 1 1

Endrin Endrin aldehyde Endrin ketone

ND ND ND

0.0050 0.010 0.010

ug/L ug/L ug/L

05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25

1 1 1

gamma-BHC (Lindane)

ND

0.010

ug/L

05/27/15 07:30 05/28/15 14:25

1

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6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 8081A - Organochlorine Pesticides (GC) (Continued)

3

Lab Sample ID: MB 440-257432/1-A Matrix: Water Analysis Batch: 257830 Analyte Heptachlor Heptachlor epoxide

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 257432 MB MB Result Qualifier ND ND

Methoxychlor Toxaphene

Surrogate Tetrachloro-m-xylene

ND ND MB MB %Recovery Qualifier 65

DCB Decachlorobiphenyl (Surr)

89

RL 0.010 0.0050

MDL Unit ug/L ug/L

0.0050 0.50

ug/L ug/L

Limits 10 - 139 10 - 150

Prepared Analyzed 05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25

Dil Fac 1 1

05/27/15 07:30 05/28/15 14:25 05/27/15 07:30 05/28/15 14:25

1 1

Prepared Analyzed 05/27/15 07:30 05/28/15 14:25

Dil Fac 1

05/27/15 07:30 05/28/15 14:25

1

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 257432 Spike Added 0.200 0.200 0.200

Analyte 4,4'-DDD 4,4'-DDE 4,4'-DDT

D

LCS LCS Result Qualifier 0.175 0.165 0.147

Unit ug/L ug/L ug/L

D

%Rec 87 82 74

%Rec. Limits 37 - 142 33 - 139 36 - 145

Aldrin alpha-BHC beta-BHC

0.200 0.200 0.200

0.112 0.153 0.161

ug/L ug/L ug/L

56 76 81

18 - 122 32 - 128 29 - 123

delta-BHC Dieldrin Endosulfan I

0.200 0.200 0.200

0.146 0.173 0.168

ug/L ug/L ug/L

73 86 84

33 - 135 32 - 139 32 - 132

Endosulfan II Endosulfan sulfate Endrin

0.200 0.200 0.200

0.171 0.166 0.175

ug/L ug/L ug/L

86 83 88

35 - 130 34 - 141 33 - 135

Endrin aldehyde Endrin ketone gamma-BHC (Lindane)

0.200 0.200 0.200

0.160 0.172 0.151

ug/L ug/L ug/L

80 86 75

27 - 144 30 - 135 32 - 129

Heptachlor Heptachlor epoxide Methoxychlor

0.200 0.200 0.200

0.162 0.167 0.180

ug/L ug/L ug/L

81 83 90

30 - 133 25 - 142 32 - 150

LCS LCS %Recovery Qualifier 62 88

Aldrin alpha-BHC beta-BHC

Sample Sample Result Qualifier ND ND ND ND ND ND

5 6 7

0.214 0.214 0.214

MS MS Result Qualifier 0.173 0.150 0.148 0.113 0.146 0.159

Unit ug/L ug/L ug/L ug/L ug/L ug/L

D

%Rec 81 70 69

%Rec. Limits 50 - 125 45 - 125 50 - 125

53 68 74

35 - 120 40 - 120 50 - 120

11

14

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Page 47 of 76

10

13

Client Sample ID: Matrix Spike Prep Type: Total/NA Prep Batch: 257432 Spike Added 0.214 0.214 0.214

9

12

Limits 10 - 139 10 - 150

Lab Sample ID: 440-111081-E-1-A MS Matrix: Water Analysis Batch: 257830 Analyte 4,4'-DDD 4,4'-DDE 4,4'-DDT

4

8

Lab Sample ID: LCS 440-257432/2-A Matrix: Water Analysis Batch: 257830

Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

1

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 8081A - Organochlorine Pesticides (GC) (Continued)

3

Lab Sample ID: 440-111081-E-1-A MS Matrix: Water Analysis Batch: 257830 Analyte delta-BHC

1

Sample Sample Result Qualifier ND

Client Sample ID: Matrix Spike Prep Type: Total/NA Prep Batch: 257432 Spike Added 0.214

MS MS Result Qualifier 0.138

Unit ug/L

D

%Rec 65

%Rec. Limits 50 - 120

4 5 6

Dieldrin

ND

0.214

0.169

ug/L

79

50 - 120

Endosulfan I

ND

0.214

0.163

ug/L

76

50 - 120

Endosulfan II

ND

0.214

0.168

ug/L

79

50 - 125

Endosulfan sulfate Endrin

ND ND

0.214 0.214

0.164 0.173

ug/L ug/L

77 81

55 - 125 50 - 120

8

Endrin aldehyde

ND

0.214

0.155

ug/L

72

45 - 125

Endrin ketone gamma-BHC (Lindane)

ND ND

0.214 0.214

0.170 0.145

ug/L ug/L

79 68

50 - 125 40 - 120

9

Heptachlor Heptachlor epoxide Methoxychlor

ND ND ND

0.214 0.214 0.214

0.159 0.168 0.185

ug/L ug/L ug/L

74 78 86

40 - 120 50 - 120 55 - 125

Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

MS MS %Recovery Qualifier 63 81

Sample Sample Result Qualifier ND ND ND

10 11 12

Limits 10 - 139 10 - 150

13

Lab Sample ID: 440-111081-I-1-A MSD Matrix: Water Analysis Batch: 257830 Analyte 4,4'-DDD 4,4'-DDE 4,4'-DDT

7

Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA Prep Batch: 257432 Spike Added 0.207 0.207 0.207

MSD MSD Result Qualifier 0.181 0.158 0.158

Unit ug/L ug/L ug/L

D

%Rec 87 76 76

%Rec. Limits 50 - 125 45 - 125 50 - 125

RPD 6 5 7

RPD Limit 30 30 30

Aldrin alpha-BHC beta-BHC

ND ND ND

0.207 0.207 0.207

0.0980 0.151 0.162

ug/L ug/L ug/L

47 73 78

35 - 120 40 - 120 50 - 120

14 3 2

30 30 30

delta-BHC Dieldrin Endosulfan I

ND ND ND

0.207 0.207 0.207

0.156 0.177 0.169

ug/L ug/L ug/L

75 85 82

50 - 120 50 - 120 50 - 120

12 4 4

30 30 30

Endosulfan II Endosulfan sulfate Endrin

ND ND ND

0.207 0.207 0.207

0.180 0.176 0.181

ug/L ug/L ug/L

87 85 87

50 - 125 55 - 125 50 - 120

7 7 4

30 30 30

Endrin aldehyde Endrin ketone gamma-BHC (Lindane)

ND ND ND

0.207 0.207 0.207

0.165 0.184 0.150

ug/L ug/L ug/L

80 89 73

45 - 125 50 - 125 40 - 120

6 8 4

30 30 30

Heptachlor Heptachlor epoxide Methoxychlor

ND ND ND

0.207 0.207 0.207

0.163 0.171 0.197

ug/L ug/L ug/L

78 83 95

40 - 120 50 - 120 55 - 125

2 2 7

30 30 30

Surrogate Tetrachloro-m-xylene DCB Decachlorobiphenyl (Surr)

MSD MSD %Recovery Qualifier 60 89

Limits 10 - 139 10 - 150

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14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Method: 8082 - Polychlorinated Biphenyls (PCBs) (GC)

3

Lab Sample ID: MB 440-257432/1-A Matrix: Water Analysis Batch: 257621

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 257432 MB MB Result Qualifier ND ND

Analyte Aroclor 1016 Aroclor 1221

RL 0.50 0.50

MDL Unit ug/L ug/L

D

Prepared Analyzed 05/27/15 07:30 05/27/15 20:51 05/27/15 07:30 05/27/15 20:51

Dil Fac 1 1

4 5 6

Aroclor 1232

ND

0.50

ug/L

05/27/15 07:30 05/27/15 20:51

1

7

Aroclor 1242 Aroclor 1248

ND ND

0.50 0.50

ug/L ug/L

05/27/15 07:30 05/27/15 20:51 05/27/15 07:30 05/27/15 20:51

1 1

8

Aroclor 1254

ND

0.50

ug/L

05/27/15 07:30 05/27/15 20:51

1

Aroclor 1260

ND

0.50

ug/L

05/27/15 07:30 05/27/15 20:51

1

Prepared Analyzed 05/27/15 07:30 05/27/15 20:51

Dil Fac 1

Surrogate DCB Decachlorobiphenyl (Surr)

MB MB %Recovery Qualifier 72

Limits 29 - 115

Lab Sample ID: LCS 440-257432/5-A Matrix: Water Analysis Batch: 257621

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 257432 Spike

Analyte Aroclor 1016 Aroclor 1260

LCS LCS

Added 4.00 4.00

%Rec.

Result Qualifier 3.15 2.88

Unit ug/L ug/L

D

%Rec 79 72

%Recovery Qualifier 79

Surrogate DCB Decachlorobiphenyl (Surr)

Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 257432 Spike Added 4.00 4.00

Analyte Aroclor 1016 Aroclor 1260 LCSD LCSD %Recovery Qualifier 81

LCSD LCSD Result Qualifier 3.22 2.92

Unit ug/L ug/L

D

%Rec 80 73

%Rec. Limits 39 - 145 37 - 137

RPD 2 1

RPD Limit 30 25

Limits 29 - 115

Method: 300.0 - Anions, Ion Chromatography Lab Sample ID: MB 440-256553/6 Matrix: Water Analysis Batch: 256553 Analyte Nitrate as N Nitrite as N Nitrate Nitrite as N

Client Sample ID: Method Blank Prep Type: Total/NA MB MB Result Qualifier ND ND ND

RL 0.11 0.15 0.15

MDL Unit mg/L mg/L mg/L

D

Prepared

Analyzed 05/21/15 14:06 05/21/15 14:06 05/21/15 14:06

Dil Fac 1 1 1

TestAmerica Irvine

Page 49 of 76

11 12 14

Limits 29 - 115

Lab Sample ID: LCSD 440-257432/6-A Matrix: Water Analysis Batch: 257621

10

13

Limits 39 - 145 37 - 137

LCS LCS Surrogate DCB Decachlorobiphenyl (Surr)

9

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 300.0 - Anions, Ion Chromatography (Continued)

3

Lab Sample ID: LCS 440-256553/2 Matrix: Water Analysis Batch: 256553

Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike Added 1.13 1.52

Analyte Nitrate as N Nitrite as N

LCS LCS Result Qualifier 1.10 1.61

Unit mg/L mg/L

D

Lab Sample ID: 440-110695-L-1 MS Matrix: Water Analysis Batch: 256553 Analyte Nitrate as N Nitrite as N

%Rec 97 106

Sample Sample Result Qualifier ND ND F1

Spike Added 11.3 15.2

MS MS Result Qualifier 12.6 24.2 F1

Unit mg/L mg/L

D

%Rec 112 159

6 7

%Rec. Limits 80 - 120 80 - 120

Spike Added 11.3 15.2

MSD MSD Result Qualifier 12.1 23.7 F1

Unit mg/L mg/L

D

Lab Sample ID: MB 440-256554/6 Matrix: Water Analysis Batch: 256554

%Rec 107 155

%Rec. Limits 80 - 120 80 - 120

10

RPD 4 2

RPD Limit 20 20

Client Sample ID: Method Blank Prep Type: Total/NA MB MB

Analyte Chloride

Result Qualifier ND

Fluoride Sulfate

ND ND

RL 0.50

MDL Unit mg/L

0.50 0.50

mg/L mg/L

Lab Sample ID: LCS 440-256554/2 Matrix: Water Analysis Batch: 256554

D

Spike Added 5.00

Fluoride Sulfate

5.00 5.00

LCS LCS Result Qualifier 4.68

Dil Fac 1

05/21/15 14:06 05/21/15 14:06

1 1

4.78 4.69

%Rec. Unit mg/L

D

mg/L mg/L

Lab Sample ID: 440-110695-L-1 MS Matrix: Water Analysis Batch: 256554 Sample Sample Result Qualifier 930 ND 130 F1

Analyzed 05/21/15 14:06

Client Sample ID: Lab Control Sample Prep Type: Total/NA

Analyte Chloride

Analyte Chloride Fluoride Sulfate

Prepared

%Rec 94 96 94

Limits 90 - 110 90 - 110 90 - 110

Client Sample ID: Matrix Spike Prep Type: Total/NA Spike Added 50.0 50.0 50.0

MS Result 929 52.3 163

MS Qualifier 4 F1

Unit mg/L mg/L mg/L

D

%Rec 5 105 71

%Rec. Limits 80 - 120 80 - 120 80 - 120

TestAmerica Irvine

Page 50 of 76

8 9

Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA

Sample Sample Result Qualifier ND ND F1

4 5

%Rec. Limits 90 - 110 90 - 110

Client Sample ID: Matrix Spike Prep Type: Total/NA

Lab Sample ID: 440-110695-L-1 MSD Matrix: Water Analysis Batch: 256553 Analyte Nitrate as N Nitrite as N

1

6/25/2015

11 12 13 14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 300.0 - Anions, Ion Chromatography (Continued) Lab Sample ID: 440-110695-L-1 MSD Matrix: Water Analysis Batch: 256554 Analyte Chloride Fluoride

Sample Sample Result Qualifier 930 ND

Sulfate

130 F1

3 Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA

Spike Added 50.0 50.0

MSD MSD Result Qualifier 911 4 51.2

50.0

159 F1

Unit mg/L mg/L

D

mg/L

%Rec -31 102

%Rec. Limits 80 - 120 80 - 120

RPD 2 2

RPD Limit 20 20

63

80 - 120

3

20

Lab Sample ID: MB 440-256481/4 Matrix: Water Analysis Batch: 256481

Client Sample ID: Method Blank Prep Type: Total/NA MB MB Result Qualifier ND

Analyte Cr (VI)

RL 2.0

MDL Unit ug/L

Lab Sample ID: LCS 440-256481/7 Matrix: Water Analysis Batch: 256481

D

Spike

LCS LCS

Added 50.0

Result Qualifier 48.4

Lab Sample ID: MRL 440-256481/5 Matrix: Water Analysis Batch: 256481

Analyzed 05/21/15 06:41

Dil Fac 1

%Rec. Unit ug/L

D

%Rec 97

Spike Added 1.00

MRL MRL Result Qualifier ND

Unit ug/L

Lab Sample ID: 440-110716-2 MS Matrix: Water Analysis Batch: 256481

D

%Rec 107

%Rec. Limits 50 - 150

Client Sample ID: MW-66-20150521 Prep Type: Dissolved

Sample Sample Result Qualifier ND

Spike Added 50.0

MS MS Result Qualifier 52.7

Unit ug/L

Lab Sample ID: 440-110716-2 MSD Matrix: Water Analysis Batch: 256481

D

%Rec 105

%Rec. Limits 85 - 115

Client Sample ID: MW-66-20150521 Prep Type: Dissolved

Sample Sample Result Qualifier ND

Spike

MSD MSD

Added 50.0

Result Qualifier 50.9

%Rec. Unit ug/L

D

%Rec 101

Limits 85 - 115

RPD RPD 4

Limit 20

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Lab Sample ID: MB 320-74794/1-A Matrix: Water Analysis Batch: 75231 Analyte 2,3,7,8-TCDD

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 74794 MB MB Result Qualifier ND

5 6 7

RL 10

EDL Unit pg/L

D

Prepared Analyzed 05/26/15 09:19 05/28/15 12:48

Dil Fac 1

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9 10 11 12 13 14

Limits 90 - 110

Client Sample ID: Lab Control Sample Prep Type: Total/NA

Analyte Cr (VI)

Analyte Cr (VI)

Prepared

Client Sample ID: Lab Control Sample Prep Type: Total/NA

Analyte Cr (VI)

4

8

Method: 7199 - Chromium, Hexavalent (IC)

Analyte Cr (VI)

1

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Isotope Dilution 13C-2,3,7,8-TCDD

MB MB %Recovery Qualifier 68

Limits 31 - 137

Prepared Analyzed 05/26/15 09:19 05/28/15 12:48

Dil Fac 1

Surrogate 37Cl4-2,3,7,8-TCDD

MB MB %Recovery Qualifier 87

Limits 42 - 164

Prepared Analyzed 05/26/15 09:19 05/28/15 12:48

Dil Fac 1

Isotope Dilution 13C-2,3,7,8-TCDD

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 74794 Spike Added 200

LCS LCS %Recovery Qualifier 67

LCS LCS Result Qualifier 235

Unit pg/L

D

%Rec 118

%Rec. Limits 73 - 146

%Recovery Qualifier 88

Limits 42 - 164

11 12 Client Sample ID: Method Blank Prep Type: Total Recoverable Prep Batch: 258235

MB MB RL 0.000050

MDL Unit %

Lab Sample ID: LCS 440-258235/2-A Matrix: Water Analysis Batch: 258939

D

LCS LCS Result Qualifier 0.000474

Unit %

Lab Sample ID: 440-110716-1 MS Matrix: Water Analysis Batch: 258939 Analyte Percent sodium

Sample Sample Result Qualifier 0.024

Sample Sample Result Qualifier 0.024

Dil Fac 1

D

%Rec 95

%Rec. Limits 85 - 115

Client Sample ID: MW-58-20150521 Prep Type: Total Recoverable Prep Batch: 258235 Spike Added 0.000500

MS MS Result Qualifier 0.0243 4

Unit %

Lab Sample ID: 440-110716-1 MSD Matrix: Water Analysis Batch: 258939 Analyte Percent sodium

Prepared Analyzed 05/29/15 16:22 06/02/15 17:46

Client Sample ID: Lab Control Sample Prep Type: Total Recoverable Prep Batch: 258235 Spike Added 0.000500

Analyte Percent sodium

7

10

Lab Sample ID: MB 440-258235/1-A Matrix: Water Analysis Batch: 258939 Result Qualifier ND

6

9

Limits 25 - 141

Method: 200.7 Rev 4.4 - Metals (ICP)

Analyte Percent sodium

5

8

LCS LCS Surrogate 37Cl4-2,3,7,8-TCDD

3 4

Lab Sample ID: LCS 320-74794/2-A Matrix: Water Analysis Batch: 75231 Analyte 2,3,7,8-TCDD

1

D

%Rec 47

%Rec. Limits 70 - 130

Client Sample ID: MW-58-20150521 Prep Type: Total Recoverable Prep Batch: 258235 Spike Added 0.000500

MSD MSD Result Qualifier 0.0243 4

Unit %

D

%Rec 46

%Rec. Limits 70 - 130

RPD 0

RPD Limit 20

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6/25/2015

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QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 245.1 - Mercury (CVAA)

3

Lab Sample ID: MB 440-257348/1-A Matrix: Water Analysis Batch: 257658

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 257348 MB MB Result Qualifier ND

Analyte Mercury

RL 0.00020

MDL Unit mg/L

Lab Sample ID: LCS 440-257348/2-A Matrix: Water Analysis Batch: 257658

D

Analyte Mercury

LCS LCS

Dil Fac 1

Added 0.00800

%Rec.

Result Qualifier 0.00854

Unit mg/L

D

Lab Sample ID: 440-110373-O-1-H MS Matrix: Water Analysis Batch: 257658

%Rec 107

Limits 85 - 115

Sample Sample Result Qualifier ND

Spike Added 0.00800

MS MS Result Qualifier 0.00803

Unit mg/L

D

%Rec 100

%Rec. Limits 70 - 130

Spike Added 0.00800

MSD MSD Result Qualifier 0.00823

Unit mg/L

D

%Rec 103

%Rec. Limits 70 - 130

RPD 2

RPD Limit 20

Method: 6010B - Metals (ICP) Lab Sample ID: MB 440-257300/1-A Matrix: Water Analysis Batch: 257646

Client Sample ID: Method Blank Prep Type: Total Recoverable Prep Batch: 257300 MB MB

Analyte Lead Zinc Nickel

RL 0.0050 0.020 0.010

MDL Unit mg/L mg/L mg/L

ND ND ND

0.010 0.0050 0.0050

ND ND 0.0100

Iron Selenium Manganese Arsenic

Copper Chromium Cadmium Silver Antimony Thallium

Result Qualifier ND ND ND

D

Prepared Analyzed 05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53

Dil Fac 1 1 1

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53

1 1 1

0.010 0.010 0.010

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53

1 1 1

ND ND ND

0.040 0.010 0.020

mg/L mg/L mg/L

05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53 05/26/15 13:18 05/27/15 15:53

1 1 1

ND

0.010

mg/L

05/26/15 13:18 05/27/15 15:53

1

TestAmerica Irvine

Page 53 of 76

5 6 7 8 10 11 12

Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA Prep Batch: 257348

Sample Sample Result Qualifier ND

4

9

Client Sample ID: Matrix Spike Prep Type: Total/NA Prep Batch: 257348

Lab Sample ID: 440-110373-O-1-I MSD Matrix: Water Analysis Batch: 257658 Analyte Mercury

Prepared Analyzed 05/26/15 16:59 05/27/15 16:22

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 257348 Spike

Analyte Mercury

1

6/25/2015

13 14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Method: 6010B - Metals (ICP) (Continued)

3

Lab Sample ID: LCS 440-257300/2-A Matrix: Water Analysis Batch: 257646

Client Sample ID: Lab Control Sample Prep Type: Total Recoverable Prep Batch: 257300 Spike Added 1.00 1.00

Analyte Lead Zinc

LCS LCS Result Qualifier 1.04 1.00

Unit mg/L mg/L

D

%Rec 104 100

%Rec. Limits 80 - 120 80 - 120

Nickel

1.00

1.05

mg/L

105

80 - 120

Copper

1.00

1.04

mg/L

104

80 - 120

Chromium Cadmium

1.00 1.00

1.05 1.03

mg/L mg/L

105 103

80 - 120 80 - 120

4 5 6 7 8

0.500

0.494

mg/L

99

80 - 120

9

Antimony Thallium

1.00 1.00

1.07 1.03

mg/L mg/L

107 103

80 - 120 80 - 120

Iron Selenium Manganese

1.00 1.00 1.00

1.03 0.985 1.04

mg/L mg/L mg/L

103 99 104

80 - 120 80 - 120 80 - 120

10

Arsenic

1.00

1.01

mg/L

101

80 - 120

Silver

Lab Sample ID: 440-110716-1 MS Matrix: Water Analysis Batch: 257646 Analyte Lead Zinc Nickel

Sample Sample Result Qualifier ND ND ND

Spike Added 1.00 1.00 1.00

MS MS Result Qualifier 1.01 1.00 0.988

Unit mg/L mg/L mg/L

D

%Rec 101 100 99

%Rec. Limits 75 - 125 75 - 125 75 - 125

ND ND ND

1.00 1.00 1.00

1.09 1.03 0.978

mg/L mg/L mg/L

108 103 98

75 - 125 75 - 125 75 - 125

Silver Antimony Thallium

ND ND ND

0.500 1.00 1.00

0.516 1.08 0.959

mg/L mg/L mg/L

103 108 96

75 - 125 75 - 125 75 - 125

0.25 ND 4.2

1.00 1.00 1.00

1.30 0.989 5.22 4

mg/L mg/L mg/L

105 98 102

75 - 125 75 - 125 75 - 125

0.011

1.00

mg/L

104

75 - 125

Arsenic

1.05

Lab Sample ID: 440-110716-1 MSD Matrix: Water Analysis Batch: 257646 Analyte Lead Zinc Nickel

12

Client Sample ID: MW-58-20150521 Prep Type: Total Recoverable Prep Batch: 257300

Copper Chromium Cadmium

Iron Selenium Manganese

11

Client Sample ID: MW-58-20150521 Prep Type: Total Recoverable Prep Batch: 257300

Sample Sample Result Qualifier ND ND ND

Spike Added 1.00 1.00 1.00

MSD MSD Result Qualifier 0.994 0.982 0.975

Unit mg/L mg/L mg/L

D

%Rec 99 98 97

%Rec. Limits 75 - 125 75 - 125 75 - 125

RPD 1 2 1

RPD Limit 20 20 20

Copper Chromium Cadmium

ND ND ND

1.00 1.00 1.00

1.06 1.01 0.961

mg/L mg/L mg/L

106 101 96

75 - 125 75 - 125 75 - 125

2 2 2

20 20 20

Silver Antimony Thallium

ND ND ND

0.500 1.00 1.00

0.503 1.05 0.949

mg/L mg/L mg/L

101 105 95

75 - 125 75 - 125 75 - 125

2 2 1

20 20 20

0.25

1.00

1.29

mg/L

104

75 - 125

1

20

Iron

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6/25/2015

13 14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: 6010B - Metals (ICP) (Continued)

3

Lab Sample ID: 440-110716-1 MSD Matrix: Water Analysis Batch: 257646 Analyte Selenium Manganese Arsenic

Client Sample ID: MW-58-20150521 Prep Type: Total Recoverable Prep Batch: 257300

Sample Sample Result Qualifier ND 4.2 0.011

Spike Added 1.00 1.00

MSD MSD Result Qualifier 0.985 5.09 4

1.00

1.02

Unit mg/L mg/L

D

mg/L

%Rec 98 89

%Rec. Limits 75 - 125 75 - 125

RPD 0 3

RPD Limit 20 20

101

75 - 125

2

20

Lab Sample ID: MB 440-256986/1-A Matrix: Water Analysis Batch: 256997

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 256986 MB MB Result Qualifier ND

Analyte Phosphorus, Total

RL 0.050

MDL Unit mg/L

Lab Sample ID: LCS 440-256986/2-A Matrix: Water Analysis Batch: 256997

D

LCS LCS

Added 0.502

Dil Fac 1

Result Qualifier 0.463

Unit mg/L

D

%Rec 92

Spike Added 0.502

MS MS Result Qualifier 0.606

Unit mg/L

Lab Sample ID: 440-110716-1 MSD Matrix: Water Analysis Batch: 256997

D

%Rec 97

%Rec. Limits 75 - 125

Client Sample ID: MW-58-20150521 Prep Type: Total/NA Prep Batch: 256986

Sample Sample Result Qualifier 0.12

Spike Added 0.502

MSD MSD Result Qualifier 0.589

Unit mg/L

D

%Rec 94

%Rec. Limits 75 - 125

RPD 3

RPD Limit 20

Method: SM 2540C - Solids, Total Dissolved (TDS) Lab Sample ID: MB 440-257914/1 Matrix: Water Analysis Batch: 257914 Analyte Total Dissolved Solids

Client Sample ID: Method Blank Prep Type: Total/NA MB MB Result Qualifier ND

RL 10

MDL Unit mg/L

Lab Sample ID: LCS 440-257914/2 Matrix: Water Analysis Batch: 257914 Analyte Total Dissolved Solids

6 7

D

Prepared

Analyzed 05/28/15 15:41

Dil Fac 1

Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike Added 1000

LCS LCS Result Qualifier 1010

Unit mg/L

D

%Rec 101

%Rec. Limits 90 - 110

TestAmerica Irvine

Page 55 of 76

9 10 11 12 13 14

Limits 80 - 120

Client Sample ID: MW-58-20150521 Prep Type: Total/NA Prep Batch: 256986

Sample Sample Result Qualifier 0.12

5

%Rec.

Lab Sample ID: 440-110716-1 MS Matrix: Water Analysis Batch: 256997

Analyte Phosphorus, Total

Prepared Analyzed 05/22/15 20:15 05/22/15 23:15

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 256986 Spike

Analyte Phosphorus, Total

4

8

Method: 365.3 - Phosphorus, Total

Analyte Phosphorus, Total

1

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: SM 2540C - Solids, Total Dissolved (TDS) (Continued)

3

Lab Sample ID: 440-110834-B-1 DU Matrix: Water Analysis Batch: 257914 Analyte Total Dissolved Solids

Client Sample ID: Duplicate Prep Type: Total/NA

Sample Sample Result Qualifier 580

DU DU Result Qualifier 590

Unit mg/L

D

Lab Sample ID: MB 440-257917/1 Matrix: Water Analysis Batch: 257917

RPD 3

RPD Limit 5

Client Sample ID: Method Blank Prep Type: Total/NA MB MB

Analyte Total Dissolved Solids

Result Qualifier ND

RL 10

MDL Unit mg/L

Lab Sample ID: LCS 440-257917/2 Matrix: Water Analysis Batch: 257917

D

Prepared

Analyzed 05/28/15 15:47

Dil Fac 1

Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike Added 1000

Analyte Total Dissolved Solids

LCS LCS Result Qualifier 976

Unit mg/L

Lab Sample ID: 440-110716-5 DU Matrix: Water Analysis Batch: 257917 Analyte Total Dissolved Solids

D

%Rec 98

%Rec. Limits 90 - 110

Client Sample ID: MW-70-20150521 Prep Type: Total/NA

Sample Sample Result Qualifier 750

DU DU Result Qualifier 729

Unit mg/L

D

Lab Sample ID: MB 440-256984/1-A Matrix: Water Analysis Batch: 257068

RPD 3

RPD Limit 5

Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 256984 MB MB Result Qualifier ND

RL 0.025

MDL Unit mg/L

Lab Sample ID: LCS 440-256984/2-A Matrix: Water Analysis Batch: 257068 LCS LCS Result Qualifier 0.202

Unit mg/L

Lab Sample ID: 440-109961-R-1-B MS Matrix: Water Analysis Batch: 257068 Analyte Cyanide, Total

Sample Sample Result Qualifier ND

Prepared Analyzed 05/22/15 20:07 05/23/15 14:55

Dil Fac 1

Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 256984 Spike Added 0.200

Analyte Cyanide, Total

D

D

%Rec 101

%Rec. Limits 90 - 110

Client Sample ID: Matrix Spike Prep Type: Total/NA Prep Batch: 256984 Spike Added 0.200

MS MS Result Qualifier 0.204

Unit mg/L

D

%Rec 102

%Rec. Limits 70 - 115

TestAmerica Irvine

Page 56 of 76

4 5 6 7 8 9 10 11 12

Method: SM 4500 CN E - Cyanide, Total

Analyte Cyanide, Total

1

6/25/2015

13 14

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: SM 4500 CN E - Cyanide, Total (Continued)

3

Lab Sample ID: 440-109961-R-1-C MSD Matrix: Water Analysis Batch: 257068 Analyte Cyanide, Total

Sample Sample Result Qualifier ND

Client Sample ID: Matrix Spike Duplicate Prep Type: Total/NA Prep Batch: 256984 Spike Added 0.200

MSD MSD Result Qualifier 0.203

Unit mg/L

D

%Rec 102

%Rec. Limits 70 - 115

RPD 0

RPD Limit 15

Lab Sample ID: MB 440-256994/1-A Matrix: Water Analysis Batch: 257126

Client Sample ID: Method Blank Prep Type: Dissolved Prep Batch: 256994 MB MB Result Qualifier ND

Analyte Sulfide, Dissolved

RL 0.050

MDL Unit mg/L

Lab Sample ID: LCS 440-256994/2-A Matrix: Water Analysis Batch: 257126

D

LCS LCS Result Qualifier 0.458

Unit mg/L

D

Lab Sample ID: 440-110758-G-2-B MS Matrix: Water Analysis Batch: 257126 Sample Sample Result Qualifier ND HF

Sample Sample Result Qualifier ND HF

Dil Fac 1

%Rec 95

%Rec. Limits 80 - 120

Spike Added 0.480

MS MS Result Qualifier 0.413

Unit mg/L

D

%Rec 86

%Rec. Limits 70 - 130

Client Sample ID: Matrix Spike Duplicate Prep Type: Dissolved Prep Batch: 256994 Spike

MSD MSD

Added 0.480

Result Qualifier 0.421

%Rec. Unit mg/L

D

Lab Sample ID: MB 440-256721/9 Matrix: Water Analysis Batch: 256721

%Rec 88

Limits 70 - 130

RPD RPD 2

Limit 30

Client Sample ID: Method Blank Prep Type: Total/NA MB MB Result Qualifier ND

RL 0.10

MDL Unit mg/L

Lab Sample ID: LCS 440-256721/10 Matrix: Water Analysis Batch: 256721

Methylene Blue Active Substances

D

Prepared

Analyzed 05/21/15 23:54

Dil Fac 1

Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike

Analyte

6

Added 0.250

LCS LCS Result Qualifier 0.244

%Rec. Unit mg/L

D

%Rec 98

Limits 90 - 110

TestAmerica Irvine

Page 57 of 76

8 9 10 11 12 14

Method: SM 5540C - Methylene Blue Active Substances (MBAS)

Analyte Methylene Blue Active Substances

5

13

Client Sample ID: Matrix Spike Prep Type: Dissolved Prep Batch: 256994

Lab Sample ID: 440-110758-G-2-C MSD Matrix: Water Analysis Batch: 257126 Analyte Sulfide, Dissolved

Prepared Analyzed 05/22/15 21:49 05/24/15 13:20

Client Sample ID: Lab Control Sample Prep Type: Dissolved Prep Batch: 256994 Spike Added 0.480

Analyte Sulfide, Dissolved

4

7

Method: SM 4500 S2 D - Sulfide, Total

Analyte Sulfide, Dissolved

1

6/25/2015

QC Sample Results Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Method: SM 5540C - Methylene Blue Active Substances (MBAS) (Continued) Lab Sample ID: 440-110716-1 MS Matrix: Water Analysis Batch: 256721 Analyte Methylene Blue Active Substances

Sample Sample Result Qualifier ND

Methylene Blue Active Substances

Sample Sample Result Qualifier ND

3

Client Sample ID: MW-58-20150521 Prep Type: Total/NA Spike Added 0.250

MS MS Result Qualifier 0.246

Unit mg/L

Lab Sample ID: 440-110716-1 MSD Matrix: Water Analysis Batch: 256721 Analyte

1

D

%Rec 75

5

%Rec. Limits 50 - 125

6

Client Sample ID: MW-58-20150521 Prep Type: Total/NA Spike Added 0.250

MSD MSD Result Qualifier 0.266

Unit mg/L

D

%Rec 83

%Rec. Limits 50 - 125

4

RPD 8

RPD Limit 20

7 8 9 10 11 12 13 14

TestAmerica Irvine

Page 58 of 76

6/25/2015

QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

GC/MS VOA

3

Analysis Batch: 257343 Lab Sample ID 440-109904-M-1 MS 440-109904-M-1 MSD 440-110716-1

Client Sample ID Matrix Spike Matrix Spike Duplicate MW-58-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 624 624 624

Prep Batch

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total/NA Total/NA Total/NA

Water Water Water

624 624 624

440-110716-5 LCS 440-257343/4

MW-70-20150521 Lab Control Sample

Total/NA Total/NA

Water Water

624 624

MB 440-257343/3

Method Blank

Total/NA

Water

624

Lab Sample ID 440-110716-1 - RA 440-110716-2 - RA 440-110716-3 - RA

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 624 624 624

440-110716-4 - RA 440-110716-5 - RA 440-113102-A-1 MS

MW-54-20150521 MW-70-20150521 Matrix Spike

Total/NA Total/NA Total/NA

Water Water Water

624 624 624

440-113102-A-1 MSD LCS 440-263076/5 MB 440-263076/4

Matrix Spike Duplicate Lab Control Sample Method Blank

Total/NA Total/NA Total/NA

Water Water Water

624 624 624

Lab Sample ID 440-110716-1 440-110716-2

Client Sample ID MW-58-20150521 MW-66-20150521

Prep Type Total/NA Total/NA

Matrix Water Water

Method 625 625

440-110716-3

MW-53-20150521

Total/NA

Water

625

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Total/NA Total/NA

Water Water

625 625

LCS 440-257104/2-A

Lab Control Sample

Total/NA

Water

625

LCSD 440-257104/3-A

Lab Control Sample Dup

Total/NA

Water

625

MB 440-257104/1-A

Method Blank

Total/NA

Water

625

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 625 625 625

440-110716-4 440-110716-5 LCS 440-257104/2-A

MW-54-20150521 MW-70-20150521 Lab Control Sample

Total/NA Total/NA Total/NA

Water Water Water

625 625 625

257104 257104 257104

LCSD 440-257104/3-A MB 440-257104/1-A

Lab Control Sample Dup Method Blank

Total/NA Total/NA

Water Water

625 625

257104 257104

5 6 7 8 9

Analysis Batch: 263076 Prep Batch

10 11 12 13 14

GC/MS Semi VOA Prep Batch: 257104 Prep Batch

Analysis Batch: 258691 Prep Batch 257104 257104 257104

TestAmerica Irvine

Page 59 of 76

4

6/25/2015

QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

GC Semi VOA

3

Prep Batch: 257432 Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 3510C 3510C 3510C

440-110716-4 440-110716-5 440-111081-E-1-A MS

MW-54-20150521 MW-70-20150521 Matrix Spike

Total/NA Total/NA Total/NA

Water Water Water

3510C 3510C 3510C

440-111081-I-1-A MSD LCS 440-257432/2-A

Matrix Spike Duplicate Lab Control Sample

Total/NA Total/NA

Water Water

3510C 3510C

LCS 440-257432/5-A

Lab Control Sample

Total/NA

Water

3510C

LCSD 440-257432/6-A MB 440-257432/1-A

Lab Control Sample Dup Method Blank

Total/NA Total/NA

Water Water

3510C 3510C

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 8082 8082 8082

440-110716-4 440-110716-5 LCS 440-257432/5-A

MW-54-20150521 MW-70-20150521 Lab Control Sample

Total/NA Total/NA Total/NA

Water Water Water

LCSD 440-257432/6-A MB 440-257432/1-A

Lab Control Sample Dup Method Blank

Total/NA Total/NA

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

440-110716-4 440-110716-5 440-111081-E-1-A MS 440-111081-I-1-A MSD LCS 440-257432/2-A MB 440-257432/1-A

Prep Batch

4 5 6 7 8 9 10

Analysis Batch: 257621 Prep Batch 257432 257432 257432

11

8082 8082 8082

257432 257432 257432

13

Water Water

8082 8082

257432 257432

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 8081A 8081A 8081A

MW-54-20150521 MW-70-20150521 Matrix Spike

Total/NA Total/NA Total/NA

Water Water Water

8081A 8081A 8081A

257432 257432 257432

Matrix Spike Duplicate Lab Control Sample Method Blank

Total/NA Total/NA Total/NA

Water Water Water

8081A 8081A 8081A

257432 257432 257432

Lab Sample ID 440-110716-1 440-110716-2 440-110716-2 MS

Client Sample ID MW-58-20150521 MW-66-20150521 MW-66-20150521

Prep Type Dissolved Dissolved Dissolved

Matrix Water Water Water

Method 7199 7199 7199

440-110716-2 MSD 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Dissolved Dissolved Dissolved

Water Water Water

7199 7199 7199

256690 256690 256690

440-110716-5 LCS 440-256481/7 MB 440-256481/4

MW-70-20150521 Lab Control Sample Method Blank

Dissolved Total/NA Total/NA

Water Water Water

7199 7199 7199

256690

MRL 440-256481/5

Lab Control Sample

Total/NA

Water

7199

Analysis Batch: 257830 Prep Batch 257432 257432 257432

HPLC/IC Analysis Batch: 256481 Prep Batch 256690 256690 256690

TestAmerica Irvine

Page 60 of 76

6/25/2015

12 14

QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

HPLC/IC (Continued)

3

Analysis Batch: 256553 Lab Sample ID 440-110695-L-1 MS 440-110695-L-1 MSD 440-110716-1

Client Sample ID Matrix Spike Matrix Spike Duplicate MW-58-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 300.0 300.0 300.0

440-110716-2 440-110716-2 440-110716-3

MW-66-20150521 MW-66-20150521 MW-53-20150521

Total/NA Total/NA Total/NA

Water Water Water

300.0 300.0 300.0

440-110716-4 440-110716-4

MW-54-20150521 MW-54-20150521

Total/NA Total/NA

Water Water

300.0 300.0

440-110716-5

MW-70-20150521

Total/NA

Water

300.0

440-110716-5 LCS 440-256553/2 MB 440-256553/6

MW-70-20150521 Lab Control Sample Method Blank

Total/NA Total/NA Total/NA

Water Water Water

300.0 300.0 300.0

Lab Sample ID 440-110695-L-1 MS 440-110695-L-1 MSD 440-110716-1

Client Sample ID Matrix Spike Matrix Spike Duplicate MW-58-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 300.0 300.0 300.0

440-110716-1 440-110716-2 440-110716-2

MW-58-20150521 MW-66-20150521 MW-66-20150521

Total/NA Total/NA Total/NA

Water Water Water

300.0 300.0 300.0

440-110716-3 440-110716-3

MW-53-20150521 MW-53-20150521

Total/NA Total/NA

Water Water

300.0 300.0

440-110716-4

MW-54-20150521

Total/NA

Water

300.0

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Total/NA Total/NA

Water Water

300.0 300.0

440-110716-5

MW-70-20150521

Total/NA

Water

300.0

LCS 440-256554/2 MB 440-256554/6

Lab Control Sample Method Blank

Total/NA Total/NA

Water Water

300.0 300.0

Lab Sample ID 440-110716-1 440-110716-2 440-110716-2 MS

Client Sample ID MW-58-20150521 MW-66-20150521 MW-66-20150521

Prep Type Dissolved Dissolved Dissolved

Matrix Water Water Water

Method Filtration Filtration Filtration

440-110716-2 MSD 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Dissolved Dissolved Dissolved

Water Water Water

Filtration Filtration Filtration

440-110716-5

MW-70-20150521

Dissolved

Water

Filtration

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 1613B 1613B 1613B

440-110716-4 440-110716-5 LCS 320-74794/2-A

MW-54-20150521 MW-70-20150521 Lab Control Sample

Total/NA Total/NA Total/NA

Water Water Water

1613B 1613B 1613B

Prep Batch

4 5 6 7 8 9 10

Analysis Batch: 256554

11 Prep Batch

12 13 14

Filtration Batch: 256690 Prep Batch

Specialty Organics Prep Batch: 74794 Prep Batch

TestAmerica Irvine

Page 61 of 76

6/25/2015

QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Specialty Organics (Continued)

3

Prep Batch: 74794 (Continued) Lab Sample ID MB 320-74794/1-A

Client Sample ID Method Blank

Prep Type Total/NA

Matrix Water

Method 1613B

Prep Batch

Client Sample ID Lab Control Sample Method Blank

Prep Type Total/NA Total/NA

Matrix Water Water

Method 1613B 1613B

Prep Batch 74794 74794

4 5

Analysis Batch: 75231 Lab Sample ID LCS 320-74794/2-A MB 320-74794/1-A

1

6 7 8

Analysis Batch: 76063 Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 1613B 1613B 1613B

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Total/NA Total/NA

Water Water

1613B 1613B

Prep Batch 74794 74794 74794

10

74794 74794

11

9

12

Metals Prep Batch: 257300

13

Lab Sample ID 440-110716-1 440-110716-1 MS 440-110716-1 MSD

Client Sample ID MW-58-20150521 MW-58-20150521 MW-58-20150521

Prep Type Total Recoverable Total Recoverable Total Recoverable

Matrix Water Water Water

Method 3005A 3005A 3005A

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total Recoverable Total Recoverable Total Recoverable

Water Water Water

3005A 3005A 3005A

440-110716-5 LCS 440-257300/2-A MB 440-257300/1-A

MW-70-20150521 Lab Control Sample Method Blank

Total Recoverable Total Recoverable Total Recoverable

Water Water Water

3005A 3005A 3005A

Lab Sample ID 440-110373-O-1-H MS 440-110373-O-1-I MSD

Client Sample ID Matrix Spike Matrix Spike Duplicate

Prep Type Total/NA Total/NA

Matrix Water Water

Method 245.1 245.1

440-110716-1

MW-58-20150521

Total/NA

Water

245.1

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total/NA Total/NA Total/NA

Water Water Water

245.1 245.1 245.1

440-110716-5 LCS 440-257348/2-A MB 440-257348/1-A

MW-70-20150521 Lab Control Sample Method Blank

Total/NA Total/NA Total/NA

Water Water Water

245.1 245.1 245.1

Lab Sample ID 440-110716-1 440-110716-1 MS 440-110716-1 MSD

Client Sample ID MW-58-20150521 MW-58-20150521 MW-58-20150521

Prep Type Total Recoverable Total Recoverable Total Recoverable

Matrix Water Water Water

Method 6010B 6010B 6010B

LCS 440-257300/2-A MB 440-257300/1-A

Lab Control Sample Method Blank

Total Recoverable Total Recoverable

Water Water

6010B 6010B

Prep Batch

14

Prep Batch: 257348 Prep Batch

Analysis Batch: 257646 Prep Batch 257300 257300 257300 257300 257300

TestAmerica Irvine

Page 62 of 76

6/25/2015

QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Metals (Continued)

3

Analysis Batch: 257658 Lab Sample ID 440-110373-O-1-H MS 440-110373-O-1-I MSD 440-110716-1

Client Sample ID Matrix Spike Matrix Spike Duplicate MW-58-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 245.1 245.1 245.1

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total/NA Total/NA Total/NA

Water Water Water

245.1 245.1 245.1

257348 257348 257348

440-110716-5 LCS 440-257348/2-A

MW-70-20150521 Lab Control Sample

Total/NA Total/NA

Water Water

245.1 245.1

257348 257348

MB 440-257348/1-A

Method Blank

Total/NA

Water

245.1

257348

Prep Batch 257348 257348 257348

Client Sample ID MW-58-20150521

Prep Type Total Recoverable

Matrix Water

Method 6010B

Analysis Batch: 257677 Lab Sample ID 440-110716-1

1

Prep Batch 257300

4 5 6 7 8 9 10 11

Analysis Batch: 257707 Prep Batch 257300 257300 257300

12

257300

14

Lab Sample ID 440-110716-2 440-110716-3 440-110716-4

Client Sample ID MW-66-20150521 MW-53-20150521 MW-54-20150521

Prep Type Total Recoverable Total Recoverable Total Recoverable

Matrix Water Water Water

Method 6010B 6010B 6010B

440-110716-5

MW-70-20150521

Total Recoverable

Water

6010B

Lab Sample ID 440-110716-1 440-110716-1 MS 440-110716-1 MSD

Client Sample ID MW-58-20150521 MW-58-20150521 MW-58-20150521

Prep Type Total Recoverable Total Recoverable Total Recoverable

Matrix Water Water Water

Method 200.2 200.2 200.2

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total Recoverable Total Recoverable Total Recoverable

Water Water Water

200.2 200.2 200.2

440-110716-5 LCS 440-258235/2-A MB 440-258235/1-A

MW-70-20150521 Lab Control Sample Method Blank

Total Recoverable Total Recoverable Total Recoverable

Water Water Water

200.2 200.2 200.2

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total Recoverable Total Recoverable Total Recoverable

Matrix Water Water Water

Method SM 2340B SM 2340B SM 2340B

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Total Recoverable Total Recoverable

Water Water

SM 2340B SM 2340B

Lab Sample ID 440-110716-1 440-110716-1 MS 440-110716-1 MSD

Client Sample ID MW-58-20150521 MW-58-20150521 MW-58-20150521

Prep Type Total Recoverable Total Recoverable Total Recoverable

Matrix Water Water Water

Method 200.7 Rev 4.4 200.7 Rev 4.4 200.7 Rev 4.4

Prep Batch 258235 258235 258235

LCS 440-258235/2-A MB 440-258235/1-A

Lab Control Sample Method Blank

Total Recoverable Total Recoverable

Water Water

200.7 Rev 4.4 200.7 Rev 4.4

258235 258235

Prep Batch: 258235 Prep Batch

Analysis Batch: 258695 Prep Batch

Analysis Batch: 258939

TestAmerica Irvine

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QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Metals (Continued)

3

Analysis Batch: 259054 Lab Sample ID 440-110716-2 440-110716-3 440-110716-4

Client Sample ID MW-66-20150521 MW-53-20150521 MW-54-20150521

Prep Type Total Recoverable Total Recoverable Total Recoverable

Matrix Water Water Water

Method 200.7 Rev 4.4 200.7 Rev 4.4 200.7 Rev 4.4

Prep Batch 258235 258235 258235

440-110716-5

MW-70-20150521

Total Recoverable

Water

200.7 Rev 4.4

258235

4 5 6 7

General Chemistry

8

Analysis Batch: 256721 Lab Sample ID 440-110716-1

Client Sample ID MW-58-20150521

Prep Type Total/NA

Matrix Water

Method SM 5540C

Prep Batch

440-110716-1 MS 440-110716-1 MSD

MW-58-20150521 MW-58-20150521

Total/NA Total/NA

Water Water

SM 5540C SM 5540C

10

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total/NA Total/NA Total/NA

Water Water Water

SM 5540C SM 5540C SM 5540C

11

440-110716-5 LCS 440-256721/10 MB 440-256721/9

MW-70-20150521 Lab Control Sample Method Blank

Total/NA Total/NA Total/NA

Water Water Water

SM 5540C SM 5540C SM 5540C

Lab Sample ID 440-109961-R-1-B MS 440-109961-R-1-C MSD 440-110716-1

Client Sample ID Matrix Spike Matrix Spike Duplicate MW-58-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method Distill/CN Distill/CN Distill/CN

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total/NA Total/NA Total/NA

Water Water Water

Distill/CN Distill/CN Distill/CN

440-110716-5 LCS 440-256984/2-A MB 440-256984/1-A

MW-70-20150521 Lab Control Sample Method Blank

Total/NA Total/NA Total/NA

Water Water Water

Distill/CN Distill/CN Distill/CN

Lab Sample ID 440-110716-1 440-110716-1 MS 440-110716-1 MSD

Client Sample ID MW-58-20150521 MW-58-20150521 MW-58-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method 365.2/365.3/365 365.2/365.3/365 365.2/365.3/365

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total/NA Total/NA Total/NA

Water Water Water

365.2/365.3/365 365.2/365.3/365 365.2/365.3/365

440-110716-5 LCS 440-256986/2-A MB 440-256986/1-A

MW-70-20150521 Lab Control Sample Method Blank

Total/NA Total/NA Total/NA

Water Water Water

365.2/365.3/365 365.2/365.3/365 365.2/365.3/365

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Dissolved Dissolved Dissolved

Matrix Water Water Water

Method SM 4500 S2 B SM 4500 S2 B SM 4500 S2 B

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Dissolved Dissolved

Water Water

SM 4500 S2 B SM 4500 S2 B

12 13

Prep Batch: 256984 Prep Batch

Prep Batch: 256986 Prep Batch

Prep Batch: 256994 Prep Batch

TestAmerica Irvine

Page 64 of 76

9

6/25/2015

14

QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

General Chemistry (Continued)

3

Prep Batch: 256994 (Continued) Lab Sample ID 440-110758-G-2-B MS

Client Sample ID Matrix Spike

Prep Type Dissolved

Matrix Water

Method SM 4500 S2 B

440-110758-G-2-C MSD LCS 440-256994/2-A

Matrix Spike Duplicate Lab Control Sample

Dissolved Dissolved

Water Water

SM 4500 S2 B SM 4500 S2 B

MB 440-256994/1-A

Method Blank

Dissolved

Water

SM 4500 S2 B

Prep Batch

4 5 6 7

Analysis Batch: 256997 Lab Sample ID 440-110716-1

Client Sample ID MW-58-20150521

Prep Type Total/NA

Matrix Water

Method 365.3

Prep Batch 256986

8

440-110716-1 MS 440-110716-1 MSD

MW-58-20150521 MW-58-20150521

Total/NA Total/NA

Water Water

365.3 365.3

256986 256986

440-110716-2 440-110716-3 440-110716-4

MW-66-20150521 MW-53-20150521 MW-54-20150521

Total/NA Total/NA Total/NA

9

Water Water Water

365.3 365.3 365.3

256986 256986 256986

10

440-110716-5 LCS 440-256986/2-A

MW-70-20150521 Lab Control Sample

Total/NA Total/NA

Water Water

365.3 365.3

256986 256986

11

MB 440-256986/1-A

Method Blank

Total/NA

Water

365.3

256986

12

Lab Sample ID 440-109961-R-1-B MS 440-109961-R-1-C MSD

Client Sample ID Matrix Spike Matrix Spike Duplicate

Prep Type Total/NA Total/NA

Matrix Water Water

Method SM 4500 CN E SM 4500 CN E

Prep Batch 256984 256984

440-110716-1

MW-58-20150521

Total/NA

Water

SM 4500 CN E

256984

440-110716-2

MW-66-20150521

Total/NA

Water

SM 4500 CN E

256984

440-110716-3 440-110716-4

MW-53-20150521 MW-54-20150521

Total/NA Total/NA

Water Water

SM 4500 CN E SM 4500 CN E

256984 256984

440-110716-5

MW-70-20150521

Total/NA

Water

SM 4500 CN E

256984

LCS 440-256984/2-A MB 440-256984/1-A

Lab Control Sample Method Blank

Total/NA Total/NA

Water Water

SM 4500 CN E SM 4500 CN E

256984 256984

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Dissolved Dissolved Dissolved

Matrix Water Water Water

Method SM 4500 S2 D SM 4500 S2 D SM 4500 S2 D

Prep Batch 256994 256994 256994

440-110716-4 440-110716-5 440-110758-G-2-B MS

MW-54-20150521 MW-70-20150521 Matrix Spike

Dissolved Dissolved Dissolved

Water Water Water

SM 4500 S2 D SM 4500 S2 D SM 4500 S2 D

256994 256994 256994

440-110758-G-2-C MSD LCS 440-256994/2-A MB 440-256994/1-A

Matrix Spike Duplicate Lab Control Sample Method Blank

Dissolved Dissolved Dissolved

Water Water Water

SM 4500 S2 D SM 4500 S2 D SM 4500 S2 D

256994 256994 256994

Lab Sample ID 440-110716-1 440-110716-2

Client Sample ID MW-58-20150521 MW-66-20150521

Prep Type Total/NA Total/NA

Matrix Water Water

Method SM 2540C SM 2540C

440-110716-3

MW-53-20150521

Total/NA

Water

SM 2540C

440-110716-4 440-110834-B-1 DU

MW-54-20150521 Duplicate

Total/NA Total/NA

Water Water

SM 2540C SM 2540C

LCS 440-257914/2

Lab Control Sample

Total/NA

Water

SM 2540C

MB 440-257914/1

Method Blank

Total/NA

Water

SM 2540C

Analysis Batch: 257068

Analysis Batch: 257126

Analysis Batch: 257914 Prep Batch

TestAmerica Irvine

Page 65 of 76

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13 14

QC Association Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

General Chemistry (Continued)

3

Analysis Batch: 257917 Lab Sample ID 440-110716-5 440-110716-5 DU LCS 440-257917/2

Client Sample ID MW-70-20150521 MW-70-20150521 Lab Control Sample

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method SM 2540C SM 2540C SM 2540C

MB 440-257917/1

Method Blank

Total/NA

Water

SM 2540C

Prep Batch

4 5 6 7

Analysis Batch: 259091 Lab Sample ID 440-110716-1

Client Sample ID MW-58-20150521

Prep Type Total/NA

Matrix Water

Method SM4500 S2 H

Prep Batch

440-110716-2 440-110716-3

MW-66-20150521 MW-53-20150521

Total/NA Total/NA

Water Water

SM4500 S2 H SM4500 S2 H

9

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Total/NA Total/NA

Water Water

SM4500 S2 H SM4500 S2 H

10

Lab Sample ID 440-110716-1 440-110716-2 440-110716-3

Client Sample ID MW-58-20150521 MW-66-20150521 MW-53-20150521

Prep Type Total/NA Total/NA Total/NA

Matrix Water Water Water

Method Total Nitrogen Total Nitrogen Total Nitrogen

440-110716-4 440-110716-5

MW-54-20150521 MW-70-20150521

Total/NA Total/NA

Water Water

Total Nitrogen Total Nitrogen

Analysis Batch: 260389

8

11 Prep Batch

12 13 14

TestAmerica Irvine

Page 66 of 76

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Definitions/Glossary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

2

Qualifiers

3

GC/MS VOA Qualifier H

1

4

Qualifier Description Sample was prepped or analyzed beyond the specified holding time

5

GC/MS Semi VOA Qualifier *

Qualifier Description LCS or LCSD is outside acceptance limits.

6

* J

RPD of the LCS and LCSD exceeds the control limits Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.

7 8

HPLC/IC Qualifier F1 4

Qualifier Description MS and/or MSD Recovery is outside acceptance limits.

9

MS, MSD: The analyte present in the original sample is greater than 4 times the matrix spike concentration; therefore, control limits are not applicable.

Metals Qualifier 4

11

Qualifier Description MS, MSD: The analyte present in the original sample is greater than 4 times the matrix spike concentration; therefore, control limits are not applicable.

General Chemistry Qualifier HF

10 12 13

Qualifier Description Field parameter with a holding time of 15 minutes. Test performed by laboratory at client's request.

14

Glossary Abbreviation ¤ %R

These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis Percent Recovery

CFL CNF DER Dil Fac DL, RA, RE, IN DLC

Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration

MDA EDL MDC

Minimum detectable activity Estimated Detection Limit Minimum detectable concentration

MDL ML NC ND PQL QC RER RL RPD TEF TEQ

Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin)

TestAmerica Irvine

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Certification Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Laboratory: TestAmerica Irvine

3

All certifications held by this laboratory are listed. Not all certifications are applicable to this report. Authority Alaska Arizona California

Program State Program State Program LA Cty Sanitation Districts

EPA Region 10 9 9

Certification ID CA01531 AZ0671 10256

Expiration Date 06-30-15 10-13-15 01-31-16 *

California

State Program

9

2706

06-30-16

Guam Hawaii

State Program State Program

9 9

Cert. No. 12.002r N/A

01-23-16 01-29-16

Nevada New Mexico Northern Mariana Islands

State Program State Program State Program

9 6 9

CA015312007A N/A MP0002

07-31-15 01-29-15 * 01-29-15 *

Oregon

NELAP

10

4005

01-29-16

4 5 6 7 8 9

Laboratory: TestAmerica Sacramento

10

All certifications held by this laboratory are listed. Not all certifications are applicable to this report. Authority A2LA Alaska (UST)

Program DoD ELAP State Program

EPA Region 10

Certification ID 2928-01 UST-055

Expiration Date 01-31-16 12-18-15

Arizona

State Program

9

AZ0708

08-11-15

Arkansas DEQ California Colorado

State Program

6

88-0691

06-17-16

State Program State Program

9 8

2897 N/A

01-31-16 08-31-15

Connecticut

State Program

1

PH-0691

06-30-15 *

Florida Hawaii

NELAP State Program

4 9

E87570 N/A

06-30-16 * 01-29-16

Illinois

NELAP

5

200060

03-17-16

Kansas Louisiana

NELAP NELAP

7 6

E-10375 30612

10-31-15 06-30-16

Michigan Nevada New Jersey

State Program State Program NELAP

5 9 2

9947 CA44 CA005

01-31-16 07-31-15 06-30-15 *

New York Oregon Oregon

NELAP NELAP NELAP Secondary AB

2 10 10

11666 CA200005 E87570

04-01-16 01-29-16 06-30-15

Pennsylvania Texas US Fish & Wildlife

NELAP NELAP Federal

3 6

9947 T104704399-08-TX LE148388-0

03-31-16 05-31-16 02-28-16

USDA USEPA UCMR Utah

Federal Federal NELAP

1 8

P330-11-00436 CA00044 QUAN1

12-30-17 11-06-16 02-28-16

Virginia Washington West Virginia (DW)

NELAP Secondary AB State Program State Program

3 10 3

460278 C581 9930C

03-14-16 05-04-16 12-31-15

Wyoming

State Program

8

8TMS-Q

01-29-16

11 12 13 14

* Certification renewal pending - certification considered valid.

TestAmerica Irvine

Page 68 of 76

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Page 69 of 76

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1 2 3 4 5 6 7 8 9 10 11 12 13 14

Page 70 of 76

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1 2 3 4 5 6 7 8 9 10 11 12 13 14

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Page 73 of 76

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Page 74 of 76

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1 2 3 4 5 6 7 8 9 10 11 12 13 14

1 Login Sample Receipt Checklist Client: Hargis + Associates, Inc.

2 Job Number: 440-110716-2

Login Number: 110716 List Number: 1 Creator: Blocker, Kristina M

List Source: TestAmerica Irvine

3 4 5

Question

Answer

Radioactivity wasn't checked or is
True

Sample custody seals, if present, are intact.

True

The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice.

True

Cooler Temperature is acceptable.

True

Cooler Temperature is recorded.

True

COC is present.

True

COC is filled out in ink and legible.

True

COC is filled out with all pertinent information.

True

Is the Field Sampler's name present on COC?

True

There are no discrepancies between the containers received and the COC.

False

Samples are received within Holding Time.

True

Sample containers have legible labels.

True

Containers are not broken or leaking.

True

Sample collection date/times are provided.

True

Appropriate sample containers are used.

True

Sample bottles are completely filled.

True

Sample Preservation Verified.

True

There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <6mm (1/4"). Multiphasic samples are not present.

True

Samples do not require splitting or compositing.

True

Residual Chlorine Checked.

True

6

Comment

7

True

8 9

True

10 11 12 IDs on containers do not match the COC. Logged in per COC.

True True

TestAmerica Irvine

Page 75 of 76

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13 14

Isotope Dilution Summary Client: Hargis + Associates, Inc. Project/Site: Chatham

TestAmerica Job ID: 440-110716-2

1 2

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Matrix: Water

Prep Type: Total/NA

3 4

Percent Isotope Dilution Recovery (Acceptance Limits) Lab Sample ID 440-110716-1 440-110716-2

Client Sample ID MW-58-20150521 MW-66-20150521

TCDD (31-137) 81 79

440-110716-3

MW-53-20150521

77

440-110716-4

MW-54-20150521

76

7

440-110716-5 MB 320-74794/1-A

MW-70-20150521 Method Blank

69 68

8

5 6

Surrogate Legend TCDD = 13C-2,3,7,8-TCDD

9 10

Method: 1613B - Tetra Chlorinated Dioxins & Furans ID HRGC/HRMS Matrix: Water

Prep Type: Total/NA Percent Isotope Dilution Recovery (Acceptance Limits)

Lab Sample ID LCS 320-74794/2-A

Client Sample ID Lab Control Sample

11 12

TCDD (25-141) 67

13

Surrogate Legend TCDD = 13C-2,3,7,8-TCDD

14

TestAmerica Irvine

Page 76 of 76

6/25/2015

2015 12 22 ChatPRP_FC_FEvaluation.pdf

Email: edm@demaximis.com. Via Email. December 22, 2015. Mr. Hossein Nassiri. CALIFORNIA ENVIRONMENTAL PROTECTION AGENCY. DEPARTMENT ...

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