B.08 LF015 LTM Report Final rev0.pdf

February 17, 2023

Gary Cox Robins IST, AFCEC/CZOE Restoration Program Manager 380 Robins Parkway - Bldg. # 359 Robins Air Force Base, GA

RE: Draft Final 2022 Long-Term Management Sampling Reports for Sites LF006, LF008, LF015, LF016

Dear Mr. Cox:

The Federal Remediation Branch (FRB) in the North Carolina Division of Waste Management (Division) received the Draft Final 2022 Long-Term Management Sampling Reports for Sites LF006, LF008, LF015, LF016 on January 19, 2023. The Division has the following comments:

• In future reports, please show the flow direction of Stoney Creek on figures.

• Several of the monitoring wells at all four sites have low pH. The 15A NCAC 02L .0202 groundwater quality standard for pH is 6.5-8.5. Typically, there is leeway given if the background pH level is naturally low. This should be addressed in future reports.

• Performance monitoring should continue every five years for the groundwater and surface water locations with the same set of analytical parameters.

Within 30 days of receipt of this letter please ensure to submit a final, non-draft electronic copy of the aforementioned document(s).

If you have any questions, please contact me at tessa.monday@ncdenr.gov.

Sincerely, Tessa R Monday Environmental Engineer Division of Waste Management

FINAL

2022 Long-Term Management Sampling Report for Site LF015

February 2023...

Carolina Group Performance Based Remediation Seymour Johnson Air Force Base, North Carolina

Contract No. FA8903-13-C-0006

Prepared for:

Air Force Civil Engineer Center

Prepared by:

FPM Remediations, Inc.

An Olgoonik Company 181 Kenwood Ave.

Oneida, NY 13421

12120 Shamrock Plaza, Suite 100

Omaha, NE 68154

TABLE OF CONTENTS

2022 LTM Sampling Report for Site LF015 i Seymour Johnson AFB, NC

FA8903-13-C-0006

Section 1 Introduction ..................................................................................................................... 1-1

1.1 Authority .................................................................................................. 1-1

1.2 Purpose and Scope ................................................................................... 1-1

1.3 Report Organization ................................................................................. 1-1

Section 2 Groundwater and Surface Water Monitoring ............................................................... 2-1

2.1 Site Description ........................................................................................ 2-1

2.2 Groundwater and Surface Water Sampling Activities ............................. 2-1

2.3 Groundwater and Surface Water Sampling Results ................................. 2-2

2.4 Investigation Derived Waste .................................................................... 2-3

Section 3 Data Quality Evaluation.................................................................................................. 3-1

3.1 Laboratory Data Quality Review ............................................................. 3-1

3.1.1 General ......................................................................................... 3-1

3.1.2 Data Review Process .................................................................... 3-1

3.1.3 Analytical Result Qualifications .................................................. 3-1

3.1.4 Conclusions of Data Quality Review ........................................... 3-2

Section 4 Conclusions and Recommendations ............................................................................ 4-1

4.1 Conclusions .............................................................................................. 4-1

4.2 Recommendations .................................................................................... 4-2

Section 5 References ...................................................................................................................... 5-1

2022 LTM Sampling Report for Site LF015 ii Seymour Johnson AFB, NC

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List of Tables Table 1 Well Construction Details Table 2 Summary of Field Water Quality Parameters Table 3 Summary of Sampling Table 4 Summary of Analytical Data

List of Figures Figure 1 LF015 Site Location Map Figure 2 LF015 Site Map Figure 3 LF015 Monitoring Locations and Groundwater Contour Map Figure 4 LF015 Chemical of Potential Concern Concentrations

List of Appendices Appendix A Laboratory Reports Appendix B Data Validation Reports Appendix C Field Documentation

2022 LTM Sampling Report for Site LF015 iii Seymour Johnson AFB, NC

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List of Acronyms µg/L micrograms per liter FPM FPM Remediations, Inc.

LF015 Landfill Number 2 LTM long-term management NC 2L Standard 15A North Carolina Administrative Code 02L.0202 Groundwater

Quality Standards NCDEQ North Carolina Department of Environmental Quality SJAFB Seymour Johnson Air Force Base SWMU Solid Waste Management Unit SVOC semi-volatile organic compound

URS

USEPA

URS Group, Inc.

United States Environmental Protection Agency

VOC volatile organic compound

SECTIONONE Introduction

2022 LTM Sampling Report for Site LF015 1-1 Seymour Johnson AFB, NC

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This Long-Term Management (LTM) Sampling Report provides the results of the groundwater and surface water sampling completed for LF015 (Landfill Number 2) (Solid Waste Management Unit [SWMU] 2) at Seymour Johnson Air Force Base (SJAFB), Goldsboro, North Carolina. The locations of SJAFB and LF015 are shown on Figure 1.

1.1 AUTHORITY

FPM Remediations, Inc. (FPM) has been contracted by the Air Force Civil Engineer Center under Contract No. FA8903-13-C-0006 to complete performance based remediation at SJAFB under the Environmental Restoration Program. URS Group, Inc. (URS) is subcontracted to FPM to complete the contract performance objectives for LF015, and this LTM report has been prepared by URS. The contracted performance objective for LF015 is Optimized Exit Strategy with annual inspections as well as groundwater and surface water monitoring in five year intervals (2017 and 2022). The LTM at SJAFB is being conducted under the Comprehensive Environmental Response, Compensation, and Liability Act. The United States Environmental Protection Agency (USEPA) deferred lead regulatory status for SJAFB to the North Carolina Department of Environmental Quality (NCDEQ).

1.2 PURPOSE AND SCOPE

The purpose of this report is to present the groundwater and surface water sampling activities and analytical results completed in accordance with the approved LTM Design Addendum (FPM/URS, 2015). The final remedy for LF015 (LTM) was designed to maintain protection of human health and the environment through long-term monitoring of groundwater and surface water downgradient of LF015 along with annual landfill inspections. The annual landfill inspections will be completed in December of 2022 and the results will be presented in a separate report.

1.3 REPORT ORGANIZATION

This LTM Sampling Report is organized into the following sections:

Section 1 presents the authority, purpose and scope, and report organization.

Section 2 describes the sampling activities and analytical results.

Section 3 presents the data quality evaluation.

Section 4 presents conclusions and recommendations.

Section 5 presents a list of references cited in the report.

Appendix A includes the analytical laboratory reports.

Appendix B includes the analytical data validation reports.

Appendix C includes the field documentation.

1 Introduction

SECTIONTWO Groundwater and Surface Water Monitoring

2022 LTM Sampling Report for Site LF015 2-1 Seymour Johnson AFB, NC

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2.1 SITE DESCRIPTION

Site LF015 is a former landfill/hardfill with waste materials left in place. The site is listed on the installation’s Resource Conservation and Recovery Act permit as SWMU 2 (NCDEQ, 2019).

This site is located in the western portion of the base, north of Century Road between the munition’s storage area and Stoney Creek (Figure 1). The total former landfill area is approximately four acres and was operational from 1956 to 1961 for disposal of general refuse, heat plant coal ash, small quantities of miscellaneous industrial wastes, and construction debris.

Approximately 40,000 cubic yards of waste were reportedly buried in the unit. The landfill was operated as a trench and fill. During the Phase I records search, large piles of construction debris were noted as being located on over half of the landfill area. A review of historical aerial photographs indicates that the size and shape of the total disturbed area has varied over time, and surface deposition, rather than trenching and filling, appear to have been the primary means of disposal in the western half of the site (URS, 2007). The perimeter of the former landfill in relation to Stoney Creek and other surrounding features are shown on Figure 2. Current land use has not been changed by the base for other activities and exists as primarily grassy and wooded land serving as a buffer near the base perimeter boundary.

2.2 GROUNDWATER AND SURFACE WATER SAMPLING ACTIVITIES

During the 2022 sampling event, the water level meter malfunctioned and thus only some water levels were able to be collected. Due to this, the water levels from the 2021 landfill inspections were utilized in their place as the 2021 data is consistent with historical data (URS, 2022). The location of the monitoring well network is shown on Figure 2. Depth-to-water was measured from a surveyed measuring point established on the top of each polyvinyl chloride well casing using an electronic water level probe. Measurements were read to the nearest 0.01 foot and recorded in the field logbook. Depth-to-water measurements were converted to water-level elevation referenced to sea level. Contouring of the water table based on the calculated December 2021 groundwater elevations is presented on Figure 3. Groundwater contouring indicates a flow direction to the northwest, toward Stoney Creek. Well construction details and depth-to-water measurements for each well are summarized in Table 1. Copies of sample collections field sheets on which field measurements and other observations were recorded are included in Appendix C.

Groundwater and surface water sampling were collected at LF015 on 25 March 2022 and 29 March 2022. Sampling was completed as follows:

• Groundwater samples were collected from monitoring wells MW-6, MW-7, MW-8, MW-9, MW-10, MW-11, and MW-12.

• Surface water samples were collected from location SW-BKG-LF15 and SW-DSTM-LF15.

• Groundwater and surface water samples were analyzed for volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), pesticides, and metals.

2 Groundwater and Surface Water

2022 LTM Sampling Report for Site LF015 2-2 Seymour Johnson AFB, NC

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• Groundwater was also monitored in the field for water quality parameters: temperature, conductivity, pH, dissolved oxygen, oxidation-reduction potential and turbidity.

2.3 GROUNDWATER AND SURFACE WATER SAMPLING RESULTS

The summary of field water quality parameters is presented in Table 2. A summary of sampling is presented in Table 3. A summary of the analytical results is presented in Table 4. Analytical results above respective North Carolina Groundwater Quality Standards (NC 2L Groundwater Standards) is presented in Figure 4. A summary of the sampling results by analytical method is as follows:

• VOCs – There were no VOC detections at any monitoring point.

• SVOCs – There were no SVOC detections at any monitoring point.

• Pesticides – There were no pesticides detections at any monitoring point.

• Metals – Five analytes (cadmium, cobalt, iron, manganese, and thallium) were detected at concentrations above the NC 2L Groundwater Standards.

− Cadmium was detected in monitoring wells MW-6, MW-7, MW-9, MW-10 and MW-

11. The results for MW-6, 4.4 J micrograms per liter (µg/L), and MW-11, 15.4 µg/L, were detected above the NC 2L Groundwater Standard of 2 µg/L. This result is consistent with 2017 historical results where both MW-6 and MW-11 exceeded the NC 2L Groundwater Standard with the concentrations of 11.4 µg/L and 17.8 µg/L respectively (URS, 2018). Cadmium was detected in MW-7, MW-9 and MW-10, below the NC 2L Groundwater Standard, although there was no cadmium detected in the surface water samples collected from upstream or downstream of the LF015 site suggesting there is no significant source of cadmium discharge from LF015 groundwater or impacting Stoney Creek.

− Cobalt was detected in the one groundwater sample collected at a concentration above the NC 2L Groundwater Standard of 1 µg/L. Common elemental metals in the groundwater are documented to occur at widely varying concentrations on base and in coastal sediments (USACE, 2002).

− Iron was detected at all nine monitoring wells and both surface water samples above the NC 2L Groundwater Standard of 300 µg/L. Iron in the groundwater is documented to occur at widely varying concentrations on base and in coastal sediments (USACE, 2002).

− Manganese was detected in all nine of the monitoring wells and both surface samples.

The results for MW-6, MW-10, and MW-11, were detected above the NC 2L Groundwater Standard of 50 µg/L with concentrations of 96.3 µg/L, 62.4 µg/L, and 236 µg/L, respectively. These results for MW-6 and MW-10 showed an increase from the 2017 historical results which were 59.3 µg/L and 29.6 µg/L, respectively (URS, 2018).

The MW-11 result shows a drastic decrease in concentration from its 2017 historical result of 1,460 µg/L. A comparison of concentrations reported in both upstream and

2022 LTM Sampling Report for Site LF015 2-3 Seymour Johnson AFB, NC

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downstream surface water samples suggest there is no significant source of manganese discharge from LF015 groundwater or impacting Stoney Creek.

− Thallium was detected in three monitoring points, MW-6, MW-11 and MW-12, above the NC 2L Standard of 2 µg/L. Thallium was not detected at either of the upstream or downstream surface water samples collected from Stoney Creek.

2.4 INVESTIGATION DERIVED WASTE

Aqueous waste generated during the equipment decontamination and purge water collected during groundwater sampling was collected in five-gallon buckets. The water was discharged to an oil/water separator located at the civil engineering wash rack on base. Used personal protective equipment was treated as solid waste and disposed of on base in a trash receptacle.

SECTIONTHREE Data Quality Evaluation

2022 LTM Sampling Report for Site LF015 3-1 Seymour Johnson AFB, NC

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3.1 LABORATORY DATA QUALITY REVIEW

3.1.1 General

Groundwater samples collected during the sampling events were submitted to SGS Laboratories in Orlando, Florida. SGS Laboratories subcontracted out analysis for total boron to the Dayton, New Jersey laboratory. The groundwater samples were analyzed for VOCs by USEPA SW-846 Method 8260D, SVOC by USEPA SW-846 8270E, metals by SW-846 6010D/7470A, and pesticides by SW-846 8081B. A copy of the SGS laboratory packages and a copy of the URS completed data validation checklist are provided in Appendix A and Appendix B, respectively.

3.1.2 Data Review Process

Analytical data were reviewed and validated by URS in accordance with the Long-Term Management Design Addendum (FPM/URS, 2015). The data review process included evaluations of the following elements:

• Laboratory case narrative/cooler receipt form

• Sample documentation

• Sample preservation and holding time compliance

• Sample completeness

• Method detection and reporting limits

• Blank contamination

• Laboratory control sample recoveries

• Surrogate compound recoveries

• Matrix spike and matrix spike duplicate recoveries

• Laboratory duplicate results

• Field duplicate results

• Additional qualifications

3.1.3 Analytical Result Qualifications

Metals results for aluminum, iron, lead, and thallium at MW-11 were qualified as estimated and VOC results for methyl bromide and tetrachloroethylene at MW-11 were qualified as estimated non-detect due to relative percent differences in the matrix spike/matrix spike duplicate sample.

Metals results for boron at MW-11 were qualified as estimated due to post digestive percent differences outside evaluation criteria.

3 Data Quality Evaluation

SECTIONTHREE Data Quality Evaluation

2022 LTM Sampling Report for Site LF015 3-2 Seymour Johnson AFB, NC

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3.1.4 Conclusions of Data Quality Review

The analytical data were found to be acceptable for their intended use based on the data reviews.

Completeness, defined to be the percentage of analytical results judged to be valid, including estimated data, was 100 percent for the events.

SECTIONFOUR Conclusions and Recommendations

2022 LTM Sampling Report for Site LF015 4-1 Seymour Johnson AFB, NC

FA8903-13-C-0006

4.1 CONCLUSIONS

Samples were collected from seven groundwater monitoring wells, and from points upstream and downstream of the landfill in the adjacent surface water body (Stoney Creek). The groundwater and surface water samples were analyzed for VOCs, SVOCs, pesticides, and metals. The sampling results identified five analytes (cadmium, cobalt, iron, manganese, and thallium) in groundwater at concentrations exceeding the NC 2L Groundwater Standards:

• The iron concentrations reported in samples collected from site groundwater and the surface water in Stoney Creek are consistent with historical sampling data (URS, 2018). Despite the iron concentrations in the upstream and downstream surface water samples both exceeding the iron groundwater standards, upon comparison the values are consistent. This indicates that groundwater discharging from LF008 to Stoney Creek is not causing adverse impacts to surface water quality.

• The manganese concentrations reported in samples collected from site groundwater and the surface water in Stoney Creek are consistent with historical sampling data (URS, 2018). A comparison of the manganese concentrations in the upstream and downstream surface water samples indicate that groundwater discharging from LF015 to Stoney Creek is not causing adverse impacts to surface water quality.

• The cobalt detection at MW-11 was found to be above the NC 2L Standard of 1 µg/L. The exceedance at MW-11, 2.8 J µg/L, showed a decrease from the 2017 historic sampling event where the cobalt result at MW-11 was 11.0 J µg/L (URS, 2018). A comparison of the groundwater concentrations reported in both upstream and downstream surface water samples suggest there is no significant source of dissolved-phase constituents discharging from LF008 groundwater to Stoney Creek.

• Cadmium concentrations was detected above the NC 2L Groundwater Standard in two of the monitoring locations at LF015. These results are consistent with historical results from the site and both upstream and downstream surface water samples were non-detect for cadmium, which suggest there is no significant source of cadmium discharge from LF015 groundwater or impacting Stoney Creek.

• Thallium was detected in three monitoring points, MW-6, MW-11 and MW-12, above the NC 2L Standard of 2 µg/L. The thallium detections in monitoring points, MW-6, MW-11 and MW-12, show a slight increase from the 2017 historical results (URS, 2018). Thallium was detected below the NC 2L Groundwater Standard in three of the other monitoring locations and was not detected in the upstream or downstream surface water samples collected from Stoney Creek. This suggests that there is no significant discharge of thallium from LF008 groundwater to Stoney Creek.

4 Conclusions and Recommendations

SECTIONFOUR Conclusions and Recommendations

2022 LTM Sampling Report for Site LF015 4-2 Seymour Johnson AFB, NC

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4.2 RECOMMENDATIONS

Based on the current operations and performance monitoring results, URS recommends the following:

• Performance monitoring should continue every five years for the groundwater and surface water locations with the same set of analytical parameters. The next sampling event will occur in 2027.

SECTIONFIVE References

2022 LTM Sampling Report for Site LF015 5-1 Seymour Johnson AFB, NC

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FPM/URS. 2015. Long-Term Management Design Addendum, Site LF006 / SWMU 4 / Landfill No. 4, Site LF008 / SWMU 1 / Landfill No. 1, Site LF015 / SWMU 2 / Landfill No. 2, Site LF016 / SWMU 3 / Landfill No. 3, Seymour Johnson Air Force Base, North Carolina. December.

NCDEQ. 2019. State of North Carolina Division of Waste Management Hazardous Waste Management Permit, Seymour Johnson Air Force Base Permit, Permit No.

NC7570024474R2. August.

URS Group, Inc. (URS). 2007. Final Landfill Sites Technical Evaluation / Long-Term Management Design (LF-06, LF-08, LF-15, LF-16), Seymour Johnson Air Force Base, North Carolina. June.

URS. 2018. Draft Final 2017 Long-Term Management Sampling and Annual Site Inspection Report Site LF015, Seymour Johnson Air Force Base, North Carolina. July.

URS. 2022. Final Landfill Inspection Report (2021) for Former Landfill Site LF015 [SWMU 2], Seymour Johnson Air Force base, North Carolina. May.

USACE. 2002. Background Concentrations of Pesticides and Metals in Soil and Groundwater, Seymour Johnson Air Force Base. Prepared for U.S. Department of the Army Corps of Engineers – Omaha District by URS Group, Contract No. DACA45-02-D-0003 Delivery Order 5, December.

5 References

TABLES

2022 LTM Sampling Report for Site LF015 Seymour Johnson AFB, NC

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Table 1 Well Construction Details

Site LF015, Seymour Johnson Air Force Base

Surface Elevation

Top of Casing

Elevation

Well Boring Depth

Screened Interval

Depth to Water from

Depth to Water from

20221

GW

Elevation from 2021

(ft amsl) (ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft btoc) (ft amsl)

MW-6 64.30 66.60 18.00 8.00-17.45 10.11 NT 56.49

MW-7 61.30 63.45 15.50 5.00-14.45 9.60 NT 53.85

MW-8 61.40 65.10 13.00 2.00-13.00 14.18 11.27 50.92

MW-9 62.50 65.36 12.00 1.50-11.50 8.37 NT 56.99

MW-10 66.40 65.98 12.00 2.00-12.00 8.01 8.69 57.97

MW-11 64.20 67.28 12.00 2.00-12.00 10.47 10.04 56.81

MW-12 60.20 63.99 12.00 2.00-12.00 13.58 11.72 50.41

Notes:

amsl = above mean sea level bgs = below ground surface btoc = below top of casing ft = feet

GW = groundwater

NT = not taken

1Water levels from MW-6, MW-7 and MW-9 were not collected due to equipment malfunction.

Water levels from 2021 inspections were used to develop water contours.

Well Identification

2022 LTM Sampling for Site LF015

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Table 2 Summary of Field Water Quality Parameters Site LF015, Seymour Johnson Air Force Base

Well Identification Date pH

Temperature (°C)

Conductivity (mS/cm)

Dissolved Oxygen (mg/L)

ORP

(mV)

Turbidity

(NTU)

MW-6 3/25/2022 5.31 16.0 0.095 1.71 86.4 8.73

MW-7 3/25/2022 4.41 15.2 0.085 2.08 259.0 9.49

MW-8 3/25/2022 6.22 15.7 0.211 0.69 32.4 4.74

MW-9 3/25/2022 3.96 14.5 0.070 1.00 199.4 8.33

MW-10 3/29/2022 4.10 16.8 0.076 2.02 211.3 2.68

MW-11 3/25/2022 5.38 16.5 0.083 0.72 62.4 4.87

MW-12 3/25/2022 6.52 15.5 0.510 3.52 95.2 2.94

SW-BKG-LF15 3/29/2022 6.82 10.2 0.068 10.76 49.1 4.17

SW-DSTM-LF15 3/29/2022 6.71 10.2 0.063 10.13 48.5 4.03

Notes:

°C = degrees Celsius ft = feet mg/L = milligram per liter mS/cm = millisiemens per centimeter mV = millivolt

NTU = nephelometric turbidity unit ORP = oxidation-reduction potential

2022 LTM Sampling for Site LF015

Table 3 Summary of Sampling

Site LF015, Seymour Johnson Air Force Base

Location Number

Collection Date

Collection Time

Sampling Matrix

VOCs (8260D)

SVOCs (8270E)

Metals (6010D/ 7470A)

Pesticides (8081)

MW-6 3/25/2022 1340 GW X X X X

MW-7 3/25/2022 1215 GW X X X X

MW-8 3/25/2022 1335 GW X X X X

MW-9 3/25/2022 1459 GW X X X X

MW-10 3/29/2022 1653 GW X X X X

MW-11 3/25/2022 1510 GW X X X X

MW-12 3/25/2022 1203 GW X X X X

SW-BKG-LF15 3/29/2022 1210 SW X X X X

SW-DSTM-LF15 3/29/2022 1133 SW X X X X

Notes:

GW = groundwater

SVOCs = semivolatile organic compounds

SW = surface water

VOCs = volatile organic compounds

2022 LTM Sampling for Site LF015

Table 4 Summary of Analytical Data

Site LF015, Seymour Johnson Air Force Base

FIELD ID

DATE COLLECTED

NC 02L1 NC 02B2 Maximum Frequency Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual Result LOQ Qual VOLATILE ORGANIC COMPOUNDS (µg/L)

No Detected Analytes

SEMIVOLATILE ORGANIC COMPOUNDS (µg/L)

No Detected Analytes

PESTICIDES (ORGANOCHLORINE) (µg/L) No Detected Analytes

METALS (µg/L) Aluminum NE NE 960 9 / 9 149 200 J 80.5 200 J 21.8 200 J 44.2 200 J 142 200 J 146 200 J 960 200 180 200 J 178 200 J Arsenic 10 10 1.8 J 1 / 9 < 10 U < 10 U < 10 U < 10 U < 10 U < 10 U 1.8 10 J < 10 U < 10 U Barium 700 1000 73.1 J 9 / 9 68.6 200 J 73.1 200 J 35.9 200 J 56.5 200 J 53.5 200 J 25.7 200 J 51.1 200 J 46.2 200 J 47.6 200 J Beryllium 4 NE 0.2 J 1 / 9 0.2 4 J < 4 U < 4 U < 4 U < 4 U < 4 U < 4 U < 4 U < 4 U Boron 700 NE 62.4 J 9 / 9 24.4 200 J 44.2 400 J 62.4 200 J 25.5 200 J 23 200 J 21.6 200 J 24.8 200 J 19.5 200 J 20.6 200 J Cadmium 2 NE 15.4 5 / 9 2 5 J 15.4 5 < 5 U 4.4 5 J 1.2 5 J < 5 U 0.8 5 J < 5 U < 5 U Calcium NE NE 153000 9 / 9 9850 1000 16500 1000 153000 1000 11800 1000 11600 1000 58100 1000 5620 1000 7740 1000 8110 1000 Chromium 10 NE 1.4 J 1 / 9 < 10 U < 10 U < 10 U < 10 U < 10 U < 10 U 1.4 10 J < 10 U < 10 U Cobalt 1 3b 2.8 J 7 / 9 0.8 50 J 2.8 50 J < 50 U < 50 U 0.2 50 J 0.2 50 J 0.5 50 J 0.2 50 J 0.4 50 J Iron 300 NE 10500 9 / 9 1220 300 2720 300 J 608 300 10500 300 1560 300 999 300 1460 300 940 300 981 300 Lead 15 NE 2.3 J 8 / 9 2 5 J 1.1 5 J 2.3 5 J < 5 U 1.2 5 J 2.3 5 J 1.1 5 J 1.1 5 J 1.6 5 J Magnesium NE NE 5400 9 / 9 1170 5000 J 1480 5000 J 5400 5000 943 5000 J 1110 5000 J 1550 5000 J 867 5000 J 2120 5000 J 2190 5000 J Manganese 50 50a 236 9 / 9 62.4 15 236 15 2.6 15 J 96.3 15 10.4 15 J 10.8 15 J 13.9 15 J 23.5 15 29.9 15 Nickel 100 25 28.6 J 8 / 9 3.8 40 J 28.6 40 J < 40 U 1.5 40 J 2 40 J 1.4 40 J 1.2 40 J 0.6 40 J 0.8 40 J Potassium NE NE 7630 J 9 / 9 1640 10000 J 1010 10000 J 7630 10000 J 1120 10000 J 1760 10000 J 3110 10000 J 3460 10000 J 2980 10000 J 3080 10000 J Selenium 20 170a 3.8 J 2 / 9 < 10 U < 10 U < 10 U < 10 U < 10 U 3.8 10 J 3 10 J < 10 U < 10 U Sodium NE NE 7660 J 9 / 9 2000 10000 J 1810 10000 J 7660 10000 J 1520 10000 J 1440 10000 J 3440 10000 J 2460 10000 J 7380 10000 J 7420 10000 J Thallium 2 NE 3.7 J 6 / 9 < 10 U 3.1 10 J 3.7 10 J 2.2 10 J 1.8 10 J 2 10 J 1.4 10 J < 10 U < 10 U Vanadium 7 NE 3.7 J 4 / 9 < 50 U < 50 U 3.7 50 J < 50 U < 50 U 0.8 50 J 2.3 50 J < 50 U 0.8 50 J Zinc 1000 NE 602 7 / 9 95.8 20 602 20 < 20 U 109 20 30.2 20 < 20 U 36.1 20 12.1 20 J 12.5 20 J

Notes:

1 North Carolina Groundwater Standards 15A NCAC 02L .0202, April 2022

Gray shaded results exceed the NC 02L Groundwater Standards

March 29, 2022 March 29, 2022

2 North Carolina Water Supply water quality standards for all water supply classifications (WS I-V) waters per 15A NCAC 02B .0208, .0212, .0214, .0215, .0216, and .0218.

Unless indicated otherwise, the NC 02B is presented. In the absence of the NC 02B, the EPA NRWQC is presented, and in the absence of the EPA NRWQC, the NC Protective Value is presented.

a NC 02B Water Supply Standard is absent. Environmental Protection Agency Nationally Recommended Water Quality Criteria (EPA NRWQC) per NC DWR “Surface Water Quality Standards, Criteria & Protective Values” table (dated July 5, 2017) Water Supply Standard provided.

b NC 02B and the EPA NRWQC Water Supply standards are absent. The NC Protective Values per NC DWR “Surface Water Quality Standards, Criteria & Protective Values” table (dated July 5, 2017) Water Supply Standard provided.

MW-9 SW-BKG-LF15 SW-DSTM-LF15

March 29, 2022 March 25, 2022 March 25, 2022 March 25, 2022 March 25, 2022 March 25, 2022 March 25, 2022

MW-10 MW-11 MW-12 MW-6 MW-7 MW-8

< = less than the limit of detection µg/L = micrograms per liter

ID = identification

J = Estimated

LOQ = Limit of Quantitation

NC = North Carolina

NC 02L = North Carolina Groundwater Standards

NC 02B = North Carolina Surface Water Standards

NE = not established

Qual = Qualifier (URS qualifiers discussed in Section 3, lab qualifiers discussed in Appendix B)

U = Nondetect

2022 LTM Sampling for Site LF015 Carolina Group PBR

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NOTES:

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KY

TN

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Site Location Map

August 2022

Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet Projection: Lambert Conformal Conic Horizontal Datum: North American 1983 False Easting: 1,999,996.0000 False Northing: 0.0000 Central Meridian: -81.0000 Standard Parallel 1: 32.5000 Standard Parallel 2: 34.8333 Latitude Of Origin: 31.8333 Units: Foot US Base Map Date: 2013 Base Map Source: Seymour Johnson Air Force Base GeoBase

0 0.5 1 1.50.25 Kilometers

0 0.50.25 Miles

Key Features SJAFB Installation Boundary Former Landfill Site Boundary

Seymour Johnson Air Force Base

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

SJAFB - Seymour Johnson Air Force Base th:

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NOTES: Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet

Projection: Lambert Conformal Conic Horizontal Datum: North American 1983 False Easting: 1,999,996.0000 False Northing: 0.0000 Central Meridian: -81.0000 Standard Parallel 1: 32.5000 Standard Parallel 2: 34.8333 Latitude Of Origin: 31.8333 Units: Foot US Base Map Date: 2013 Base Map Source: Seymour Johnson Air Force Base GeoBase

Key Features

@A LTM Program Monitoring Well (Sampled in 2022)

@A Former Monitoring Well

ED

Upstream Surface Water Sampling Location

ED

Downstream Surface Water Sampling Location Stoney Creek Installation Boundary LF015 Site Boundary

Site Location

Seymour Johnson AFB

FIGURE 2

LF015

Site Map

August 2022

0 30 60 9015 Meters

0 100 20050 Feet

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

AFB - Air Force Base LTM - Long Term Monitoring

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NOTES: Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet

Projection: Lambert Conformal Conic Horizontal Datum: North American 1983 False Easting: 1,999,996.0000 False Northing: 0.0000 Central Meridian: -81.0000 Standard Parallel 1: 32.5000 Standard Parallel 2: 34.8333 Latitude Of Origin: 31.8333 Units: Foot US Base Map Date: 2013 Base Map Source: Seymour Johnson Air Force Base GeoBase

Key Features

@A LTM Program Monitoring Well (Sampled in 2022)

ED

Upstream Surface Water Sampling Location

ED

Downstream Surface Water Sampling Location Groundwater Contour Stoney Creek Installation Boundary LF015 Site Boundary

Site Location

Seymour Johnson AFB

4A

4A Groundwater elevations and contours based on December 15, 2021 well gauging data.

FIGURE 3

LF015

Monitoring Locations and Groundwater Coontour Map

August 2022

0 30 60 9015

Meters

0 100 20050

Feet

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

Century Road

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NOTES: Coordinate System:NAD 1983 StatePlane North Carolina FIPS 3200 Feet

Projection: Lambert Conformal Conic Horizontal Datum: North American 1983 False Easting: 1,999,996.0000 False Northing: 0.0000 Central Meridian: -81.0000 Standard Parallel 1: 32.5000 Standard Parallel 2: 34.8333 Latitude Of Origin: 31.8333 Units: Foot US Base Map Date: 2013 Base Map Source: Seymour Johnson Air Force Base GeoBase

Key Features

@A LTM Program Monitoring Well (Sampled in 2022)

ED

Upstream Surface Water Sampling Location

ED

Downstream Surface Water Sampling Location Stoney Creek Installation Boundary LF015 Site Boundary

Site Location

Seymour Johnson AFB

Analytical data collected during March 2022 sampling event.

Concentrations listed in micrograms per liter.

Grey shaded values indicate the analyze concentration in groundwater was reported above North Carolina Groundwater Standards.

J - Estimated concentration < - Analyte not detected above the listed limit of detection (LOD) LTM - Long Term Monitoring AFB - Air Force Base VOC - Volatile Organic Compound

FIGURE 4

LF015

Chemical of Potential Concern Concentrations

August 2022

0 30 60 9015

Meters

0 100 20050

Feet

Carolina Group Performance Based Remediation Contract

Seymour Johnson Air Force Base Goldsboro, NC

Contract No. FA8903-13-C-0006

URS Group, Inc.

Cadmium 4.4 J Cobalt <

Iron 10500 Manganese 96.3

Thallium 2.2 J

MW-6

Metals

Cadmium 2 J Cobalt 0.8 J

Iron 1220 Manganese 62.4

Thallium <

MW-10

Metals

Cadmium < Cobalt 0.2 J

Iron 940 Manganese 23.5

Thallium <

SW-BKG-LF15

Metals

Cadmium 1.2 J Cobalt 0.2 J

Iron 1560 Manganese 10.4 J

Thallium 1.8 J

MW-7

Metals

Cadmium 15.4 Cobalt 2.8 J

Iron 2720 J Manganese 236

Thallium 3.1 J

MW-11

Metals

Cadmium < Cobalt 0.2 J

Iron 999 Manganese 10.8 J

Thallium 2 J

MW-8

Metals

Cadmium < Cobalt <

Iron 608 Manganese 2.6 J

Thallium 3.7 J

MW-12

Metals

Cadmium 0.8 J Cobalt 0.5 J

Iron 1460 Manganese 13.9 J

Thallium 1.4 J

MW-9

Metals

Cadmium < Cobalt 0.4 J

Iron 981 Manganese 29.9

Thallium <

SW-DSTM-LF15

Metals

Century Road

APPENDIXA Laboratory Reports

10/18/22

Technical Report for

AECOM, INC.

Seymour Johnson AFB LF015; Goldsboro, NC

60417848

SGS Job Number: FA94323

Sampling Date: 03/25/22

Report to:

AECOM, INC.

12120 Shamrock Plaza Suite 100 Omaha, NE 68154 jeff.aust@aecom.com; jared.desadier@aecom.com;

paul.m.wilson@aecom.com ATTN: Paul Wilson

Total number of pages in report:

Certifications: FL(E83510), LA(03051), KS(E-10327), NC(573), NJ(FL002), NY(12022), SC(96038001)

DoD ELAP(ANAB L2229), AZ(AZ0806), CA(2937), TX(T104704404), PA(68-03573), VA(460177), AL, AK, AR, CT, IA, KY, MA, MI. MS, ND, NH, NV, OK, OR, IL, UT, VT, WA, WI, WV

This report shall not be reproduced, except in its entirety, without the written approval of SGS.

Test results relate only to samples analyzed.

SGS North America Inc. • 4405 Vineland Road • Suite C-15 • Orlando, FL 32811 • tel: 407-425-6700 • fax: 407-425-0707

Test results contained within this data package meet the requirements of the National Environmental Laboratory Accreditation Program and/or state specific certification programs as applicable.

Client Service contact: Muna Mohammed 407-425-6700

Norm Farmer Technical Director

Orlando, FL 10/18/22 Reissue #1 e-Hardcopy 2.0 Automated Report

SGS is the sole authority for authorizing edits or modifications to this document.

Unauthorized modification of this report is strictly prohibited.

Review standard terms at: http://www.sgs.com/en/terms-and-conditions

The results set forth herein are provided by SGS North America Inc.

Please share your ideas about how we can serve you better at:

EHS.US.CustomerCare@sgs.com

FA94323

mailto:EHS.US.CustomerCare@sgs.com?subject=Customer care improvement idea (report FA94323)

Florida ♦ 4405 Vineland Road ♦ Suite C-15 ♦ Orlando, FL 32811 ♦ tel: 407 425-6700 ♦ fax: 407 425-0707

October 18, 2022

Mr. Paul M. Wilson

AECOM

12120 Shamrock Plaza Suite 100 Omaha, NE 68154

RE: SGS North America Inc. - Orlando job FA94323 Reissue

Dear Mr. Wilson, The final report for job number FA94323 has been edited to reflect requested corrections.

These edits have been incorporated into the revised report.

Project name has been revised.

SGS North America Inc. - Orlando apologies for any inconvenience this may have caused.

Please feel free to contact us if we can be of further assistance.

Sincerely, SGS North America, Inc. - Orlando

Table of Contents -1-

Sections:

Section 1: Sample Summary Section 2: Case Narrative/Conformance Summary Section 3: Summary of Hits Section 4: Sample Results

4.1: FA94323-1: MW-12

4.2: FA94323-2: MW-7

4.3: FA94323-3: MW-8

4.4: FA94323-4: MW-6

4.5: FA94323-5: MW-11

4.6: FA94323-6: MW-9

4.7: FA94323-7: TRIP BLANK 1

4.8: FA94323-8: TRIP BLANK 2

4.9: FA94323-9: TRIP BLANK 3

Section 5: Misc. Forms 5.1: Chain of Custody 5.2: QC Evaluation: DOD QSM5.x Limits

Section 6: MS Volatiles - QC Data Summaries 6.1: Method Blank Summary 6.2: Blank Spike Summary 6.3: Matrix Spike/Matrix Spike Duplicate Summary 6.4: Instrument Performance Checks (BFB) 6.5: Internal Standard Area Summaries 6.6: Surrogate Recovery Summaries 6.7: Initial and Continuing Calibration Summaries 6.8: Run Sequence Reports

Section 7: MS Volatiles - Raw Data 7.1: Samples 7.2: Method Blanks 7.3: Blank Spikes 7.4: Matrix Spike/Matrix Spike Duplicates 7.5: Instrument Performance Checks (BFB) 7.6: Initial and Continuing Calibrations 7.7: Instrument Run Logs

Section 8: MS Semi-volatiles - QC Data Summaries 8.1: Method Blank Summary 8.2: Blank Spike Summary 8.3: Matrix Spike/Matrix Spike Duplicate Summary 8.4: Instrument Performance Checks (DFTPP) 8.5: Internal Standard Area Summaries 8.6: Surrogate Recovery Summaries 8.7: Initial and Continuing Calibration Summaries 8.8: Run Sequence Reports

-2-

Sections:

Section 9: MS Semi-volatiles - Raw Data 9.1: Samples 9.2: Method Blanks 9.3: Blank Spikes 9.4: Matrix Spike/Matrix Spike Duplicates 9.5: Instrument Performance Checks (DFTPP) 9.6: Initial and Continuing Calibrations 9.7: Instrument Run Logs 9.8: Prep Logs

Section 10: GC/LC Semi-volatiles - QC Data Summaries 10.1: Method Blank Summary 10.2: Blank Spike Summary 10.3: Matrix Spike/Matrix Spike Duplicate Summary 10.4: DDT/Endrin Breakdown Checks 10.5: Surrogate Recovery Summaries 10.6: GC Surrogate Retention Time Summaries 10.7: Initial and Continuing Calibration Summaries 10.8: Run Sequence Reports

Section 11: GC/LC Semi-volatiles - Raw Data 11.1: Samples 11.2: Method Blanks 11.3: Blank Spikes 11.4: Matrix Spike/Matrix Spike Duplicates 11.5: DDT/Endrin Breakdown Checks 11.6: Initial and Continuing Calibrations 11.7: Instrument Run Logs 11.8: Prep Logs

Section 12: Metals Analysis - QC Data Summaries 12.1: Inst QC MA18560: Hg 12.2: Inst QC MA18578: Al,Sb,As,Ba,Be,Cd,Ca,Cr,Co,Cu,Fe,Pb,Mg,Mn,Ni,K,Se,Ag, Na,Tl,V,Zn 12.3: Prep QC MP40483: Hg 12.4: Prep QC MP40513: Al,Sb,As,Ba,Be,Cd,Ca,Cr,Co,Cu,Fe,Pb,Mg,Mn,Ni,K,Se,Ag, Na,Tl,V,Zn 12.5: IDL and Linear Range Summaries

Section 13: Metals Analysis - Raw Data 13.1: Raw Data MA18560 13.2: Raw Data MA18578 13.3: Prep Logs

Section 14: Misc. Forms (SGS Dayton, NJ) 14.1: Chain of Custody 14.2: QC Evaluation: DOD QSM5.x Limits

-3-

Sections:

Section 15: Metals Analysis - QC Data (SGS Dayton, NJ) 15.1: Inst QC MA52184: B 15.2: Prep QC MP32133: B 15.3: IDL and Linear Range Summaries

Section 16: Metals Analysis - Raw Data (SGS Dayton, NJ) 16.1: Raw Data MA52184 16.2: Prep Logs

SGS North America Inc.

Sample Summary

AECOM, INC.

Job No: FA94323

Seymour Johnson AFB LF015; Goldsboro, NC Project No: 60417848

Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID

FA94323-1 03/25/22 12:02 TBAC 03/26/22 AQ Ground Water MW-12

FA94323-2 03/25/22 12:15 TBAC 03/26/22 AQ Ground Water MW-7

FA94323-3 03/25/22 13:35 TBAC 03/26/22 AQ Ground Water MW-8

FA94323-4 03/25/22 13:40 TBAC 03/26/22 AQ Ground Water MW-6

FA94323-5 03/25/22 15:10 TBAC 03/26/22 AQ Ground Water MW-11

FA94323-5D 03/25/22 15:10 TBAC 03/26/22 AQ Water Dup/MSD MW-11

FA94323-5S 03/25/22 15:10 TBAC 03/26/22 AQ Water Matrix Spike MW-11

FA94323-6 03/25/22 14:59 TBAC 03/26/22 AQ Ground Water MW-9

FA94323-7 03/25/22 00:00 TBAC 03/26/22 AQ Trip Blank Water TRIP BLANK 1

FA94323-8 03/25/22 00:00 TBAC 03/26/22 AQ Trip Blank Water TRIP BLANK 2

FA94323-9 03/25/22 00:00 TBAC 03/26/22 AQ Trip Blank Water TRIP BLANK 3

SAMPLE DELIVERY GROUP CASE NARRATIVE

Client: AECOM, INC. Job No: FA94323 Site: Seymour Johnson AFB LF006; Goldsboro, NC Report Date: 4/12/2022 4:13:30 PM On 03/26/2022, 6 Sample(s), 1 Trip Blank(s) and 0 Field Blank(s) were received at SGS North America Inc - Orlando. at a maximum corrected temperature of 4.6 C. Samples were intact and chemically preserved, unless noted below. A SGS North America Inc. - Orlando Job Number of FA94323 was assigned to the project.

Laboratory sample ID, client sample ID and dates of sample collection are detailed in the report’s Results Summary Section.

Specified quality control criteria were achieved for this job except as noted below. For more information, please refer to the analytical results and QC summary pages.

MS Volatiles By Method SW846 8260D Matrix: AQ Batch ID: V5E1462 Sample(s) FA94323-5MS, FA94323-5MSD were used as the QC samples indicated.

Matrix Spike Recovery(s) for Methyl Bromide, Tetrachloroethylene are outside control limits. Probable cause is due to matrix interference.

Matrix Spike Duplicate Recovery(s) for Tetrachloroethylene are outside control limits. Probable cause is due to matrix interference.

RPD(s) for MSD for Methyl Bromide are outside control limits for sample FA94323-5MSD. Probable cause is due to sample non-homogeneity.

V5E1462-MB: Sample was treated with an anti-foaming agent.

Matrix: AQ Batch ID: V5E1464 FA94323-9: Confirmation run.

FA94323-8: Sample vial(s) contained bubbles greater than 6mm. Confirmation run.

MS Semi-volatiles By Method SW846 8270E Matrix: AQ Batch ID: OP90539 Sample(s) FA94323-5MS, FA94323-5MSD were used as the QC samples indicated.

Blank Spike Recovery(s) for Butyl Benzyl Phthalate, Isophorone, Benzyl Alcohol are outside control limits.

Matrix Spike Recovery(s) for Isophorone are outside control limits. Probable cause is due to matrix interference.

Matrix Spike Duplicate Recovery(s) for Butyl Benzyl Phthalate, Isophorone are outside control limits. Probable cause is due to matrix interference.

OP90539-BS for 2-Methylnaphthalene: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for 2-Nitroaniline: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for 3,3'-Dichlorobenzidine: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for 3-Nitroaniline: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for 4-Chloroaniline: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for 4-Nitroaniline: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for Benzyl Alcohol: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for Carbazole: Spike recoveries calculated from actual spike mix concentration.

OP90539-BS for Dibenzofuran: Spike recoveries calculated from actual spike mix concentration.

FA94323-1 for 2-Nitroaniline: Associated CCV outside of control limits high, sample was ND.

FA94323-1 for 4-Nitrophenol: Associated CCV outside of control limits high, sample was ND.

FA94323-1 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94323-1 for bis(2-Chloroethyl)ether: Associated CCV outside of control limits high, sample was ND.

FA94323-1 for Butyl Benzyl Phthalate: Associated CCV outside of control limits high, sample was ND.

FA94323-1 for Isophorone: Associated CCV outside of control limits high, sample was ND.

FA94323-1 for N-Nitrosodi-n-propylamine: Associated CCV outside of control limits high, sample was ND.

FA94323-1 for Phenol: Associated CCV outside of control limits high, sample was ND.

FA94323-2 for 2-Nitroaniline: Associated CCV outside of control limits high, sample was ND.

FA94323-2 for 4-Nitrophenol: Associated CCV outside of control limits high, sample was ND.

FA94323-2 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94323-2 for bis(2-Chloroethyl)ether: Associated CCV outside of control limits high, sample was ND.

FA94323-2 for Butyl Benzyl Phthalate: Associated CCV outside of control limits high, sample was ND.

FA94323-2 for Isophorone: Associated CCV outside of control limits high, sample was ND.

MS Semi-volatiles By Method SW846 8270E Matrix: AQ Batch ID: OP90539 FA94323-2 for N-Nitrosodi-n-propylamine: Associated CCV outside of control limits high, sample was ND.

FA94323-2 for Phenol: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for 2-Nitroaniline: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for 4-Nitrophenol: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for bis(2-Chloroethyl)ether: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for Butyl Benzyl Phthalate: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for Isophorone: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for N-Nitrosodi-n-propylamine: Associated CCV outside of control limits high, sample was ND.

FA94323-3 for Phenol: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for 2-Nitroaniline: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for 4-Nitrophenol: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for bis(2-Chloroethyl)ether: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for Butyl Benzyl Phthalate: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for Isophorone: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for N-Nitrosodi-n-propylamine: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for Phenol: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for 2-Nitroaniline: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for 4-Nitrophenol: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for bis(2-Chloroethyl)ether: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for Butyl Benzyl Phthalate: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for Isophorone: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for N-Nitrosodi-n-propylamine: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for Phenol: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for 2-Nitroaniline: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for 4-Nitrophenol: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for Benzoic Acid: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for bis(2-Chloroethyl)ether: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for Butyl Benzyl Phthalate: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for Isophorone: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for N-Nitrosodi-n-propylamine: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for Phenol: Associated CCV outside of control limits high, sample was ND.

GC/LC Semi-volatiles By Method SW846 8081B Matrix: AQ Batch ID: OP90472 Sample(s) FA94323-5MS, FA94323-5MSD were used as the QC samples indicated.

FA94323-4 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for Endosulfan-I: Associated CCV outside of control limits high, sample was ND.

FA94323-4 for Heptachlor epoxide: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for Endosulfan-I: Associated CCV outside of control limits high, sample was ND.

FA94323-5 for Heptachlor epoxide: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for 4,4'-DDD: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for Aldrin: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for Endosulfan-I: Associated CCV outside of control limits high, sample was ND.

FA94323-6 for Heptachlor epoxide: Associated CCV outside of control limits high, sample was ND.

Metals Analysis By Method SW846 6010D Matrix: AQ Batch ID: MP40513 Sample(s) FA94323-5DUP, FA94323-5MS, FA94323-5MSD, FA94323-5PS, FA94323-5SDL were used as the QC samples for metals.

RPD(s) for Duplicate for Iron, Aluminum, Lead, Selenium, Thallium are outside control limits for sample MP40513-D1. High RPD indicates possible matrix interference.

RPD(s) for Serial Dilution for Lead, Thallium are outside control limits for sample MP40513-SD1. Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

MP40513-D1 for Lead: RPD acceptable due to low duplicate and sample concentrations.

MP40513-D1 for Aluminum: RPD acceptable due to low duplicate and sample concentrations.

MP40513-D1 for Thallium: RPD acceptable due to low duplicate and sample concentrations.

MP40513-D1 for Selenium: RPD acceptable due to low duplicate and sample concentrations.

Matrix: AQ Batch ID: N:MP32133 FA94323-1 for Boron: Analysis performed at SGS Dayton, NJ.

FA94323-2 for Boron: Analysis performed at SGS Dayton, NJ.

FA94323-3 for Boron: Analysis performed at SGS Dayton, NJ.

FA94323-4 for Boron: Analysis performed at SGS Dayton, NJ.

FA94323-5 for Boron: Analysis performed at SGS Dayton, NJ.

FA94323-6 for Boron: Analysis performed at SGS Dayton, NJ.

Metals Analysis By Method SW846 7470A Matrix: AQ Batch ID: MP40483 Sample(s) FA94323-5DUP, FA94323-5MS, FA94323-5MSD, FA94323-5SDL were used…