th north point government center 7701 wise avenue · north point government center 7701 wise avenue...

Apex Companies, LLC 15850 Crabbs Branch Way, Suite 200 Rockville, MD 20855 T 800.733.2739 F 301.975.0169 apexcos.com

January 11, 2018 Mr. Stephen Jerrick A. Morton Thomas & Associates, Inc. 800 King Farm Blvd, Fourth Floor Rockville, MD 20850 Re: Quarterly Monitoring Report – 4th Quarter 2017 Groundwater Monitoring

North Point Government Center 7701 Wise Avenue Dundalk, Maryland OCP Case No.: 2016-0467-BA Apex Job No.: AMORT-009

Dear Mr. Jerrick: Apex Companies, LLC (Apex) has prepared this report for the above-referenced site (subject property) on behalf of the A. Morton Thomas & Associates, Inc. (AMT) to document activities completed during the 4th Quarter 2017. A site location map is included as Figure 1. In February 2016, Oil Control Program (OCP) Case 2016-0467-BA was opened following a confirmed release from a supply line associated with an underground storage tank (UST) located at the subject property. Apex completed a site investigation in August 2016 that identified petroleum impacted soil and groundwater in the vicinity of the former UST system, which was removed in February 2016. Based on Apex’s site assessment, MDE recommended additional work that included the installation of three groundwater monitoring wells; monthly gauging of four wells identified as MW-1, MW-4, MW-5, and MW-6 as well as quarterly sampling of these four wells. The following is a summary of activities completed at the site:

• Discovery of suspected leak – February 2016 • UST system removal and Closure Report – March 2016 • MDE Request for Work Plan – May 2016 • Work Plan for site assessment activities submitted and approved – June/July 2016 • Soil and groundwater sampling, storm drain inspection and sampling – August 2016 • Site Assessment Report – September 2016 • Stream Inspection and Re-inspection Reports – September/October 2016 • MDE Request for Work Plan – December 2016 • Work Plan for additional site assessment activities submitted and approved –

January/February 2017 • Completion of monitoring well installations and storm drain cleaning – March 2017 • Commence monthly gauging and quarterly sampling – April 2017 • Additional Site Assessment Report – May 2017

Mr. Steve Jerrick, A. Morton Thomas & Associates, Inc. January 11, 2018 4th QMR 2017 – North Point Government Center - OCP Case 2016-0467-BA

AMT-NorthPoint-4thQMR2017_rpt;(AMORT-009);trp/ttn

MONITORING WELL GAUGING During October, November, and December 2017, Apex completed monthly gauging of the four monitoring wells identified as MW-1, MW-4, MW-5, and MW-6. Monitoring well locations are provided on Figure 2. Results of the monthly gauging completed during the 4th Quarter 2017 are provided in Table 1. Measurable Light Non-Aqueous Phase Liquids (LNAPL) or free product was not detected in the four on-site wells gauged as part of the monthly monitoring, with the exception of MW-5.

TABLE 1 Monthly Well Gauging Summary

North Point Government Center

7701 Wise Avenue Dundalk, Maryland

Well Date TOC

Elevation (feet)

Depth to Product from

TOC (feet)

Depth to Water from TOC (feet)

Product Thickness

(feet) Groundwater

Elevation (feet)

Corrected Groundwater

Elevation (feet)

MW-1

10/10/2017

32.23

-- 17.59 -- 14.64 --

11/8/2017 -- 17.74 -- 14.49 --

12/13/2017 -- 17.96 -- 14.27 --

MW-4

10/10/2017

33.78

-- 19.51 -- 14.27 --

11/8/2017 -- 19.73 -- 14.05 --

12/13/2017 -- 19.89 -- 13.89 --

MW-5

10/10/2017

31.54

-- 17.16 -- 14.20 --

11/8/2017 -- 17.33 -- 14.32 --

12/13/2017 17.39 18.10 0.71 14.49 14.04

MW-6

10/10/2017

32.44

-- 18.47 -- 13.97 --

11/8/2017 -- 18.70 -- 13.74 --

12/13/2017 -- 18.88 -- 13.56 -- MONITORING WELL SAMPLING

On December 13, 2017, Apex mobilized to the site to sample the four on-site monitoring wells (MW-1, MW-4, MW-5, and MW-6). Prior to sampling, the monitoring wells were gauged with an oil/water interface probe. Measurable LNAPL was observed in MW-5 at a thickness of 0.71 feet on December 13, 2017. LNAPL was not measured in MW-5 during October or November. Measurable LNAPL was not detected in the remaining three monitoring wells during the 4th Quarter 2017. The monitoring well locations are depicted on Figure 2. Relative groundwater elevations were calculated by subtracting the depth-to-water reading from the top of casing elevation in each monitoring well. The recorded depth-to-water levels are presented in Table 1. A summary of groundwater elevations to date is provided in Table 2. An approximated groundwater contour map was constructed and is presented as Figure 3. Based on the relative groundwater elevations, groundwater flow is anticipated to be in a south-southeast direction.

Mr. Steve Jerrick, A. Morton Thomas & Associates, Inc. January 11, 2018 4th QMR 2017 – North Point Government Center - OCP Case 2016-0467-BA

AMT-NorthPoint-4thQMR2017_rpt;(AMORT-009);trp/ttn

A groundwater sample was not collected from MW-5 due to the presence of LNAPL. The remaining samples were collected from each monitoring well using low-flow purging and sampling procedures. A bladder pump and dedicated disposable polyethylene (PE) tubing were used to purge the wells. Once groundwater parameters stabilized (+/- 10%), the groundwater samples were collected. The samples were retained in laboratory prepared glassware, labeled, and placed in a cooler with ice for preservation. Samples were then delivered to SGS Accutest Laboratories for analysis following proper chain-of-custody procedures. The samples were analyzed for volatile organic compounds (VOCs) including fuel oxygenates and naphthalene using U.S. Environmental Protection Agency (EPA) Method 8260; and total petroleum hydrocarbons for diesel range organics (TPH-DRO) using EPA Method 8015C. Apex compared the groundwater sample analytical results to the Maryland Generic Numeric Cleanup Standards for Groundwater (Groundwater Cleanup Standards) published in the MDE Interim Final Guidance dated June 2008.

The laboratory analytical results are summarized on Table 3 and the laboratory data sheets are included in Attachment 1. Based on the results of the 4th Quarter 2017 sampling, concentrations of TPH-DRO and VOCs were not detected at concentrations that exceeded the Groundwater Cleanup Standards. Apex notes that MW-5 was not sampled due to the presence of LNAPL.

SUMMARY AND ACTIVITIES TO BE COMPLETED IN THE 1st Quarter 2018 During the 4th Quarter 2017, Apex gauged the four monitoring wells (MW-1, MW-4, MW-5, and MW-6) on a monthly basis. Measurable LNAPL was observed in MW-5 at a thickness of 0.71 feet on December 13, 2017. LNAPL was not observed in MW-5 during October or November. Measurable LNAPL was not detected in the remaining three monitoring wells during the 4th Quarter 2017. Based on the results of the 4th Quarter 2017 sampling, concentrations of TPH-DRO and VOCs were not detected at concentrations that exceeded the Groundwater Cleanup Standards. Apex notes that MW-5 was not sampled due to the presence of LNAPL. Activities planned for the 1st Quarter 2018 include continuing monthly gauging and quarterly sampling of the four monitoring wells during December of 2017. In addition, if LNAPL is observed in any of the onsite monitoring well, the LNAPL will be bailed from the monitoring well and stored in a 55-gallon steel drum for later disposal. Apex appreciates the opportunity to provide these services. Should you have any questions or require additional information, please contact us at (301) 417-0200. Sincerely, Apex Companies, LLC

Todd R. Passmore Project Manager Maryland Division

TABLES and FIGURES

Well Date TOC Elevation (feet)

Depth to Product from TOC (feet)

Depth to Water from TOC (feet)

Product Thickness (feet)

Groundwater Elevation (feet)

4/3/2017 -- 17.88 -- 14.35

5/17/2017 -- 17.69 -- 14.54

6/14/2017 -- 17.71 -- 14.52

7/12/2017 -- 17.81 -- 14.42

8/9/2017 -- 17.69 -- 14.54

9/13/2017 -- 17.55 -- 14.68

10/10/2017 -- 17.59 -- 14.64

11/8/2017 -- 17.74 -- 14.49

12/13/2017 -- 17.96 -- 14.27

4/3/2017 -- 19.86 -- 13.92

5/17/2017 -- 19.61 -- 14.17

6/14/2017 -- 19.56 -- 14.22

7/12/2017 -- 19.69 -- 14.09

8/9/2017 -- 19.61 -- 14.17

9/13/2017 -- 19.43 -- 14.35

10/10/2017 -- 19.51 -- 14.27

11/8/2017 -- 19.73 -- 14.05

12/13/2017 -- 19.89 -- 13.89

4/3/2017 -- 17.47 -- 14.07

5/17/2017 -- 17.23 -- 14.31

6/14/2017 -- 17.19 -- 14.35

7/12/2017 17.31 17.34 0.03 14.20

8/9/2017 -- 17.22 -- 14.32

9/13/2017 -- 17.05 -- 14.49

10/10/2017 -- 17.16 -- 14.38

11/8/2017 -- 17.33 -- 14.21

12/13/2017 17.39 18.10 0.71 13.44

4/3/2017 -- 18.82 -- 13.62

5/17/2017 -- 18.56 -- 13.88

6/14/2017 -- 18.51 -- 13.93

7/12/2017 -- 18.65 -- 13.79

8/9/2017 -- 18.56 -- 13.88

9/13/2017 -- 18.38 -- 14.06

10/10/2017 -- 18.47 -- 13.97

11/8/2017 -- 18.70 -- 13.74

12/13/2017 -- 18.88 -- 13.56

Notes:

TOC = Top of Casing

-- = product not detected

Table 2 - Groundwater Gauging ResultsNorth Point Government Center

7701 Wise Avenue, Dundalk, Maryland

MW-1 32.23

MW-4 33.78

31.54MW-5

MW-6 32.44

Apex Companies, LLCProject:Project Number:

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MD CleanupStandards -

GroundwaterLab Sample ID: Type I and II JC45322-1 JC50899-1 JC57653-1 JC40368-1 JC45322-2 JC50899-2 JC57653-2Date Sampled: Aquifers (MDE 6/14/2017 9/13/2017 12/13/2017 4/3/2017 6/14/2017 9/13/2017 12/13/2017

Matrix: 6/2008) Groundwater Groundwater Ground Water Groundwater Groundwater Groundwater Ground Water

Acetone µg/l 550 ND (5.0) ND (5.0) ND (5.0) ND (5.0) ND (5.0) ND (5.0) ND (5.0)Benzene µg/l 5 ND (0.17) ND (0.17) ND (0.17) ND (0.14) ND (0.17) ND (0.17) ND (0.17)Bromobenzene µg/l - ND (0.25) ND (0.25) ND (0.25) ND (0.22) ND (0.25) ND (0.25) ND (0.25)Bromochloromethane µg/l - ND (0.38) ND (0.38) ND (0.38) ND (0.46) ND (0.38) ND (0.38) ND (0.38)Bromodichloromethane µg/l 80 ND (0.22) ND (0.22) ND (0.22) ND (0.55) ND (0.22) ND (0.22) ND (0.22)Bromoform µg/l 80 ND (0.42) ND (0.42) ND (0.42) ND (0.34) ND (0.42) ND (0.42) ND (0.42)Bromomethane µg/l 0.85 ND (1.4) ND (1.4) ND (1.4) ND (0.46) ND (1.4) ND (1.4) ND (1.4)2-Butanone (MEK) µg/l 700 ND (4.8) ND (4.8) ND (4.8) ND (1.9) ND (4.8) ND (4.8) ND (4.8)n-Butylbenzene µg/l - ND (0.27) ND (0.27) ND (0.27) ND (0.28) ND (0.27) ND (0.27) ND (0.27)sec-Butylbenzene µg/l - ND (0.27) ND (0.27) ND (0.27) ND (1.0) ND (0.27) ND (0.27) ND (0.27)tert-Butylbenzene µg/l - ND (0.34) ND (0.34) ND (0.34) ND (0.28) ND (0.34) ND (0.34) ND (0.34)Carbon tetrachloride µg/l 5 ND (0.34) ND (0.34) ND (0.34) ND (0.54) ND (0.34) ND (0.34) ND (0.34)Chlorobenzene µg/l 100 ND (0.24) ND (0.24) ND (0.24) ND (0.17) ND (0.24) ND (0.24) ND (0.24)Chloroethane µg/l 3.6 ND (0.59) ND (0.59) ND (0.59) ND (0.44) ND (0.59) ND (0.59) ND (0.59)Chloroform µg/l 80 1.1 1.3 1.9 15.8 19.7 17.4 19.7Chloromethane µg/l 19 ND (0.53) ND (0.53) ND (0.53) ND (0.96) ND (0.53) ND (0.53) ND (0.53)o-Chlorotoluene µg/l - ND (0.30) ND (0.30) ND (0.30) ND (0.18) ND (0.30) ND (0.30) ND (0.30)p-Chlorotoluene µg/l - ND (0.24) ND (0.24) ND (0.24) ND (0.29) ND (0.24) ND (0.24) ND (0.24)Di-Isopropyl ether µg/l - ND (0.20) ND (0.20) ND (0.20) ND (0.41) ND (0.20) ND (0.20) ND (0.20)1,2-Dibromo-3-chloropropane µg/l 0.2 ND (0.69) ND (0.69) ND (0.69) ND (0.69) ND (0.69) ND (0.69) ND (0.69)Dibromochloromethane µg/l 80 ND (0.16) ND (0.16) ND (0.16) ND (0.23) ND (0.16) ND (0.16) ND (0.16)1,2-Dibromoethane µg/l 0.05 ND (0.21) ND (0.21) ND (0.21) ND (0.22) ND (0.21) ND (0.21) ND (0.21)1,2-Dichlorobenzene µg/l 600 ND (0.50) ND (0.50) ND (0.50) ND (0.23) ND (0.50) ND (0.50) ND (0.50)1,3-Dichlorobenzene µg/l 1.8 ND (0.50) ND (0.50) ND (0.50) ND (0.19) ND (0.50) ND (0.50) ND (0.50)1,4-Dichlorobenzene µg/l 75 ND (0.50) ND (0.50) ND (0.50) ND (0.21) ND (0.50) ND (0.50) ND (0.50)Dichlorodifluoromethane µg/l - ND (1.9) ND (1.9) ND (1.9) ND (0.70) ND (1.9) ND (1.9) ND (1.9)1,1-Dichloroethane µg/l 90 ND (0.21) ND (0.21) ND (0.21) ND (0.21) ND (0.21) ND (0.21) ND (0.21)1,2-Dichloroethane µg/l 5 ND (0.20) ND (0.20) ND (0.20) ND (0.39) ND (0.20) ND (0.20) ND (0.20)1,1-Dichloroethene µg/l 7 ND (0.47) ND (0.47) ND (0.47) ND (0.20) ND (0.47) ND (0.47) ND (0.47)cis-1,2-Dichloroethene µg/l 70 ND (0.50) ND (0.50) ND (0.50) ND (0.31) ND (0.50) ND (0.50) ND (0.50)trans-1,2-Dichloroethene µg/l 100 ND (0.40) ND (0.40) ND (0.40) ND (0.36) ND (0.40) ND (0.40) ND (0.40)1,2-Dichloropropane µg/l 5 ND (0.24) ND (0.24) ND (0.24) ND (0.33) ND (0.24) ND (0.24) ND (0.24)1,3-Dichloropropane µg/l - ND (0.28) ND (0.28) ND (0.28) ND (0.28) ND (0.28) ND (0.28) ND (0.28)2,2-Dichloropropane µg/l - ND (0.30) ND (0.30) ND (0.30) ND (0.42) ND (0.30) ND (0.30) ND (0.30)1,1-Dichloropropene µg/l - ND (0.29) ND (0.29) ND (0.29) ND (0.20) ND (0.29) ND (0.29) ND (0.29)cis-1,3-Dichloropropene µg/l 0.44 ND (0.25) ND (0.25) ND (0.25) ND (0.19) ND (0.25) ND (0.25) ND (0.25)trans-1,3-Dichloropropene µg/l 0.44 ND (0.22) ND (0.22) ND (0.22) ND (0.26) ND (0.22) ND (0.22) ND (0.22)Ethylbenzene µg/l 700 ND (0.22) ND (0.22) ND (0.22) ND (0.20) ND (0.22) ND (0.22) ND (0.22)Hexachlorobutadiene µg/l 0.86 ND (0.34) ND (0.34) ND (0.34) ND (0.22) ND (0.34) ND (0.34) ND (0.34)

Table 3 - Groundwater Results

Client Sample ID:

North Point Government Facility, 7701 Wise Avenue, Dundalk, MDAMORT-009

GC/MS Volatiles (SW846 8260C)

MW4

Legend:

MW1



Matrix: 6/2008) Groundwater Groundwater Ground Water Groundwater Groundwater Groundwater Ground Water

Client Sample ID:


MW4MW1

Isopropylbenzene µg/l 66 ND (0.25) ND (0.25) ND (0.25) ND (0.16) ND (0.25) ND (0.25) ND (0.25)p-Isopropyltoluene µg/l - ND (0.24) ND (0.24) ND (0.24) ND (1.0) ND (0.24) ND (0.24) ND (0.24)Methyl Tert Butyl Ether µg/l 20 ND (0.25) ND (0.25) ND (0.25) ND (0.34) ND (0.25) ND (0.25) ND (0.25)4-Methyl-2-pentanone(MIBK) µg/l 630 ND (3.0) ND (3.0) ND (3.0) ND (1.2) ND (3.0) ND (3.0) ND (3.0)Methylene bromide µg/l - ND (0.45) ND (0.45) ND (0.45) ND (0.28) ND (0.45) ND (0.45) ND (0.45)Methylene chloride µg/l 5 ND (1.0) ND (1.0) ND (1.0) ND (1.0) ND (1.0) ND (1.0) ND (1.0)Naphthalene µg/l 0.65 ND (1.1) ND (1.1) ND (1.1) ND (1.0) ND (1.1) ND (1.1) ND (1.1)n-Propylbenzene µg/l - ND (0.24) ND (0.24) ND (0.24) ND (0.17) ND (0.24) ND (0.24) ND (0.24)Styrene µg/l 100 ND (0.24) ND (0.24) ND (0.24) ND (0.27) ND (0.24) ND (0.24) ND (0.24)Tert Butyl Alcohol µg/l - ND (7.0) ND (7.0) ND (7.0) ND (3.0) ND (7.0) ND (7.0) ND (7.0)tert-Amyl Methyl Ether µg/l - ND (0.37) ND (0.37) ND (0.37) ND (0.23) ND (0.37) ND (0.37) ND (0.37)tert-Butyl Ethyl Ether µg/l - ND (0.20) ND (0.20) ND (0.20) ND (0.23) ND (0.20) ND (0.20) ND (0.20)1,1,1,2-Tetrachloroethane µg/l - ND (0.19) ND (0.19) ND (0.19) ND (0.17) ND (0.19) ND (0.19) ND (0.19)1,1,2,2-Tetrachloroethane µg/l 0.053 ND (0.17) ND (0.17) ND (0.17) ND (0.39) ND (0.17) ND (0.17) ND (0.17)Tetrachloroethene µg/l 5 ND (0.50) ND (0.50) ND (0.50) ND (0.23) ND (0.50) ND (0.50) ND (0.50)Toluene µg/l 1000 ND (0.25) ND (0.25) ND (0.25) ND (0.23) ND (0.25) ND (0.25) ND (0.25)1,2,3-Trichlorobenzene µg/l - ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50)1,2,4-Trichlorobenzene µg/l 70 ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50)1,1,1-Trichloroethane µg/l 200 ND (0.25) ND (0.25) ND (0.25) ND (0.22) ND (0.25) ND (0.25) ND (0.25)1,1,2-Trichloroethane µg/l 5 ND (0.24) ND (0.24) ND (0.24) ND (0.28) ND (0.24) ND (0.24) ND (0.24)Trichloroethene µg/l 5 ND (0.27) ND (0.27) ND (0.27) ND (0.26) ND (0.27) ND (0.27) ND (0.27)Trichlorofluoromethane µg/l - ND (0.60) ND (0.60) ND (0.60) ND (0.58) ND (0.60) ND (0.60) ND (0.60)1,2,3-Trichloropropane µg/l - ND (0.47) ND (0.47) ND (0.47) ND (0.75) ND (0.47) ND (0.47) ND (0.47)1,2,4-Trimethylbenzene µg/l - ND (0.24) ND (0.24) ND (0.24) ND (0.26) ND (0.24) ND (0.24) ND (0.24)1,3,5-Trimethylbenzene µg/l - ND (0.20) ND (0.20) ND (0.20) ND (0.32) ND (0.20) ND (0.20) ND (0.20)Vinyl chloride µg/l 2 ND (0.62) ND (0.62) ND (0.62) ND (0.33) ND (0.62) ND (0.62) ND (0.62)m,p-Xylene µg/l 10000 ND (0.43) ND (0.43) ND (0.43) ND (0.42) ND (0.43) ND (0.43) ND (0.43)o-Xylene µg/l 10000 ND (0.22) ND (0.22) ND (0.22) ND (0.21) ND (0.22) ND (0.22) ND (0.22)Xylene (total) µg/l 10000 ND (0.22) ND (0.22) ND (0.22) ND (0.21) ND (0.22) ND (0.22) ND (0.22)

TPH-GRO (C6-C10) mg/l ND (0.10) ND (0.10) NS NS NS ND (0.10) NS NS

TPH-DRO (C10-C28) mg/l 0.047 0.138 ND (0.083) ND (0.083) ND (0.064) ND (0.064) ND (0.083) ND (0.083)

using or reporting any data. NS- Not Sampled

GC Semi-volatiles (SW846 8015C)

Regulatory limits listed in this document have been obtained from the latest version of the regulations cited and are usedfor advisory purposes only. SGS Accutest assumes no responsibility for errors in regulatory documents or changes to criteriadetailed in later versions of the referenced regulation. It is the responsibility of the user to verify these limits before

GC Volatiles (SW846 8015C)

Apex Companies, LLCProject:Project Number:

Hit Exceed



Matrix: 6/2008) Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Ground Water

Acetone µg/l 550 ND (5.0) ND (5.0) 5.0 J ND (5.0) ND (5.0) ND (5.0) ND (5.0)Benzene µg/l 5 ND (0.14) ND (0.17) ND (0.17) ND (0.14) ND (0.17) ND (0.17) ND (0.17)Bromobenzene µg/l - ND (0.22) ND (0.25) ND (0.25) ND (0.22) ND (0.25) ND (0.25) ND (0.25)Bromochloromethane µg/l - ND (0.46) ND (0.38) ND (0.38) ND (0.46) ND (0.38) ND (0.38) ND (0.38)Bromodichloromethane µg/l 80 ND (0.55) ND (0.22) ND (0.22) ND (0.55) ND (0.22) ND (0.22) ND (0.22)Bromoform µg/l 80 ND (0.34) ND (0.42) ND (0.42) ND (0.34) ND (0.42) ND (0.42) ND (0.42)Bromomethane µg/l 0.85 ND (0.46) ND (1.4) ND (1.4) ND (0.46) ND (1.4) ND (1.4) ND (1.4)2-Butanone (MEK) µg/l 700 ND (1.9) ND (4.8) ND (4.8) ND (1.9) ND (4.8) ND (4.8) ND (4.8)n-Butylbenzene µg/l - ND (0.28) ND (0.27) 0.68 J ND (0.28) ND (0.27) ND (0.27) ND (0.27)sec-Butylbenzene µg/l - ND (1.0) 0.27 J 0.46 J ND (1.0) ND (0.27) ND (0.27) ND (0.27)tert-Butylbenzene µg/l - ND (0.28) ND (0.34) ND (0.34) ND (0.28) ND (0.34) ND (0.34) ND (0.34)Carbon tetrachloride µg/l 5 ND (0.54) ND (0.34) ND (0.34) ND (0.54) ND (0.34) ND (0.34) ND (0.34)Chlorobenzene µg/l 100 ND (0.17) ND (0.24) ND (0.24) ND (0.17) ND (0.24) ND (0.24) ND (0.24)Chloroethane µg/l 3.6 ND (0.44) ND (0.59) ND (0.59) ND (0.44) ND (0.59) ND (0.59) ND (0.59)Chloroform µg/l 80 2.9 5 ND (0.29) 2.3 3.2 4.3 1.5Chloromethane µg/l 19 ND (0.96) ND (0.53) ND (0.53) ND (0.96) ND (0.53) ND (0.53) ND (0.53)o-Chlorotoluene µg/l - ND (0.18) ND (0.30) ND (0.30) ND (0.18) ND (0.30) ND (0.30) ND (0.30)p-Chlorotoluene µg/l - ND (0.29) ND (0.24) ND (0.24) ND (0.29) ND (0.24) ND (0.24) ND (0.24)Di-Isopropyl ether µg/l - ND (0.41) ND (0.20) ND (0.20) ND (0.41) ND (0.20) ND (0.20) ND (0.20)1,2-Dibromo-3-chloropropane µg/l 0.2 ND (0.69) ND (0.69) ND (0.69) ND (0.69) ND (0.69) ND (0.69) ND (0.69)Dibromochloromethane µg/l 80 ND (0.23) ND (0.16) ND (0.16) ND (0.23) ND (0.16) ND (0.16) ND (0.16)1,2-Dibromoethane µg/l 0.05 ND (0.22) ND (0.21) ND (0.21) ND (0.22) ND (0.21) ND (0.21) ND (0.21)1,2-Dichlorobenzene µg/l 600 ND (0.23) ND (0.50) ND (0.50) ND (0.23) ND (0.50) ND (0.50) ND (0.50)1,3-Dichlorobenzene µg/l 1.8 ND (0.19) ND (0.50) ND (0.50) ND (0.19) ND (0.50) ND (0.50) ND (0.50)1,4-Dichlorobenzene µg/l 75 ND (0.21) ND (0.50) ND (0.50) ND (0.21) ND (0.50) ND (0.50) ND (0.50)Dichlorodifluoromethane µg/l - ND (0.70) ND (1.9) ND (1.9) ND (0.70) ND (1.9) ND (1.9) ND (1.9)1,1-Dichloroethane µg/l 90 ND (0.21) ND (0.21) ND (0.21) ND (0.21) ND (0.21) ND (0.21) ND (0.21)1,2-Dichloroethane µg/l 5 ND (0.39) ND (0.20) ND (0.20) ND (0.39) ND (0.20) ND (0.20) ND (0.20)1,1-Dichloroethene µg/l 7 ND (0.20) ND (0.47) ND (0.47) ND (0.20) ND (0.47) ND (0.47) ND (0.47)cis-1,2-Dichloroethene µg/l 70 ND (0.31) ND (0.50) ND (0.50) ND (0.31) ND (0.50) ND (0.50) ND (0.50)trans-1,2-Dichloroethene µg/l 100 ND (0.36) ND (0.40) ND (0.40) ND (0.36) ND (0.40) ND (0.40) ND (0.40)1,2-Dichloropropane µg/l 5 ND (0.33) ND (0.24) ND (0.24) ND (0.33) ND (0.24) ND (0.24) ND (0.24)1,3-Dichloropropane µg/l - ND (0.28) ND (0.28) ND (0.28) ND (0.28) ND (0.28) ND (0.28) ND (0.28)2,2-Dichloropropane µg/l - ND (0.42) ND (0.30) ND (0.30) ND (0.42) ND (0.30) ND (0.30) ND (0.30)1,1-Dichloropropene µg/l - ND (0.20) ND (0.29) ND (0.29) ND (0.20) ND (0.29) ND (0.29) ND (0.29)cis-1,3-Dichloropropene µg/l 0.44 ND (0.19) ND (0.25) ND (0.25) ND (0.19) ND (0.25) ND (0.25) ND (0.25)trans-1,3-Dichloropropene µg/l 0.44 ND (0.26) ND (0.22) ND (0.22) ND (0.26) ND (0.22) ND (0.22) ND (0.22)Ethylbenzene µg/l 700 0.88 J 0.35 J ND (0.20) ND (0.20) ND (0.22) ND (0.22) ND (0.22)Hexachlorobutadiene µg/l 0.86 ND (0.22) ND (0.34) ND (0.22) ND (0.22) ND (0.34) ND (0.34) ND (0.34)

Table 3 - Groundwater Results (cont'd.)North Point Government Facility, 7701 Wise Avenue, Dundalk, MDAMORT-009

Legend:

MW5 MW6


Client Sample ID:



Matrix: 6/2008) Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Ground Water

MW5 MW6


Client Sample ID:

Isopropylbenzene µg/l 66 0.40 J 0.27 J ND (0.16) ND (0.16) ND (0.25) ND (0.25) ND (0.25)p-Isopropyltoluene µg/l - 1.3 J 0.63 J 0.41 J ND (1.0) ND (0.24) ND (0.24) ND (0.24)Methyl Tert Butyl Ether µg/l 20 ND (0.34) ND (0.25) ND (0.25) ND (0.34) ND (0.25) ND (0.25) ND (0.25)4-Methyl-2-pentanone(MIBK) µg/l 630 ND (1.2) ND (3.0) ND (3.0) ND (1.2) ND (3.0) ND (3.0) ND (3.0)Methylene bromide µg/l - ND (0.28) ND (0.45) ND (0.45) ND (0.28) ND (0.45) ND (0.45) ND (0.45)Methylene chloride µg/l 5 ND (1.0) ND (1.0) ND (1.0) ND (1.0) ND (1.0) ND (1.0) ND (1.0)Naphthalene µg/l 0.65 3.0 J 1.3 J ND (1.0) ND (1.0) ND (1.1) ND (1.1) ND (1.1)n-Propylbenzene µg/l - 0.54 J 0.42 J ND (0.17) ND (0.17) ND (0.24) ND (0.24) ND (0.24)Styrene µg/l 100 ND (0.27) ND (0.24) ND (0.24) ND (0.27) ND (0.24) ND (0.24) ND (0.24)Tert Butyl Alcohol µg/l - ND (3.0) ND (7.0) ND (7.0) ND (3.0) ND (7.0) ND (7.0) ND (7.0)tert-Amyl Methyl Ether µg/l - ND (0.23) ND (0.37) ND (0.37) ND (0.23) ND (0.37) ND (0.37) ND (0.37)tert-Butyl Ethyl Ether µg/l - ND (0.23) ND (0.20) ND (0.20) ND (0.23) ND (0.20) ND (0.20) ND (0.20)1,1,1,2-Tetrachloroethane µg/l - ND (0.17) ND (0.19) ND (0.19) ND (0.17) ND (0.19) ND (0.19) ND (0.19)1,1,2,2-Tetrachloroethane µg/l 0.053 ND (0.39) ND (0.17) ND (0.17) ND (0.39) ND (0.17) ND (0.17) ND (0.17)Tetrachloroethene µg/l 5 ND (0.23) ND (0.50) ND (0.50) ND (0.23) ND (0.50) ND (0.50) ND (0.50)Toluene µg/l 1000 ND (0.23) ND (0.25) ND (0.25) ND (0.23) ND (0.25) ND (0.25) ND (0.25)1,2,3-Trichlorobenzene µg/l - ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50)1,2,4-Trichlorobenzene µg/l 70 ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50) ND (0.50)1,1,1-Trichloroethane µg/l 200 ND (0.22) ND (0.25) ND (0.25) ND (0.22) ND (0.25) ND (0.25) ND (0.25)1,1,2-Trichloroethane µg/l 5 ND (0.28) ND (0.24) ND (0.24) ND (0.28) ND (0.24) ND (0.24) ND (0.24)Trichloroethene µg/l 5 ND (0.26) ND (0.27) ND (0.27) ND (0.26) ND (0.27) ND (0.27) ND (0.27)Trichlorofluoromethane µg/l - ND (0.58) ND (0.60) ND (0.60) ND (0.58) ND (0.60) ND (0.60) ND (0.60)1,2,3-Trichloropropane µg/l - ND (0.75) ND (0.47) ND (0.47) ND (0.75) ND (0.47) ND (0.47) ND (0.47)1,2,4-Trimethylbenzene µg/l - 15.3 6 0.71 J ND (0.26) ND (0.24) ND (0.24) ND (0.24)1,3,5-Trimethylbenzene µg/l - 13.8 4.2 0.51 J ND (0.32) ND (0.20) ND (0.20) ND (0.20)Vinyl chloride µg/l 2 ND (0.33) ND (0.62) ND (0.62) ND (0.33) ND (0.62) ND (0.62) ND (0.62)m,p-Xylene µg/l 10000 3.8 1 ND (0.43) ND (0.42) ND (0.43) ND (0.43) ND (0.43)o-Xylene µg/l 10000 8.1 1.7 ND (0.22) ND (0.21) ND (0.22) ND (0.22) ND (0.22)Xylene (total) µg/l 10000 11.9 2.7 ND (0.22) ND (0.21) ND (0.22) ND (0.22) ND (0.22)

TPH-GRO (C6-C10) mg/l ND (0.10) NS ND (0.10) NS NS ND (0.10) NS NS

TPH-DRO (C10-C28) mg/l 0.047 1.15 0.628 3.52 0.214 0.123 ND (0.083) ND (0.083)

detailed in later versions of the referenced regulation. It is the responsibility of the user to verify these limits beforeusing or reporting any data. NS- Not Sampled

GC Semi-volatiles (SW846 8015C)

Regulatory limits listed in this document have been obtained from the latest version of the regulations cited and are usedfor advisory purposes only. SGS Accutest assumes no responsibility for errors in regulatory documents or changes to criteria

GC Volatiles (SW846 8015C)

Figure 1

Site Location

North Point Government Center 7701 Wise Avenue Dundalk, Maryland

15850 Crabbs Branch Way Suite 200 Rockville, MD 20855 Telephone: (301) 417-0200

Legend

Project: Quarterly Monitoring Report

Client: A. Morton Thomas

Project No.: AMORT-009

Subject Property

TPassmore

Text Box

1-11-18

TPassmore

Text Box

AMORT-009

TPassmore

Text Box

AMORT-009

ATTACHMENT 1

Laboratory Analytical Data

01/04/18

Technical Report for

Apex Companies, LLC

North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

AMORT-009

SGS Job Number: JC57653

Sampling Date: 12/13/17

Report to:

Apex Companies, LLC15850 Crabbs Branch WayRockville, MD [email protected]

ATTN: Todd Passmore

Total number of pages in report:

Certifications: NJ(12129), NY(10983), CA, CT, FL, IL, IN, KS, KY, LA, MA, MD, ME, MN, NC,

OH VAP (CL0056), AK (UST-103), AZ (AZ0786), PA, RI, SC, TX, UT, VA, WV, DoD ELAP (L-A-B L2248)

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. • 2235 Route 130 • Dayton, NJ 08810 • tel: 732-329-0200 • fax: 732-329-3499

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: Kristin Degraw 732-329-0200

Nancy ColeLaboratory Director

Dayton, NJ 01/04/18

e-Hardcopy 2.0Automated Report

42

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.

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Table of Contents-1-

Sections:

Section 1: Sample Summary ................................................................................................... 3Section 2: Summary of Hits .................................................................................................... 4Section 3: Sample Results ........................................................................................................ 5

3.1: JC57653-1: MW-1 ........................................................................................................ 63.2: JC57653-2: MW-4 ........................................................................................................ 103.3: JC57653-3: MW-6 ........................................................................................................ 14

Section 4: Misc. Forms ............................................................................................................ 184.1: Chain of Custody ........................................................................................................... 19

Section 5: MS Volatiles - QC Data Summaries ..................................................................... 225.1: Method Blank Summary ................................................................................................ 235.2: Blank Spike Summary ................................................................................................... 265.3: Matrix Spike Summary .................................................................................................. 295.4: Duplicate Summary ....................................................................................................... 325.5: Instrument Performance Checks (BFB) ......................................................................... 355.6: Surrogate Recovery Summaries ..................................................................................... 37

Section 6: GC/LC Semi-volatiles - QC Data Summaries ..................................................... 386.1: Method Blank Summary ................................................................................................ 396.2: Blank Spike Summary ................................................................................................... 406.3: Matrix Spike/Matrix Spike Duplicate Summary ........................................................... 416.4: Surrogate Recovery Summaries ..................................................................................... 42

12

34

56

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Sample Summary

Apex Companies, LLCJob No: JC57653

North Point Government Facility, 7701 Wise Avenue, Dundalk, MDProject No: AMORT-009

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

JC57653-1 12/13/17 09:30 TP 12/19/17 AQ Ground Water MW-1



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Summary of Hits Page 1 of 1 Job Number: JC57653Account: Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MDCollected: 12/13/17

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

JC57653-1 MW-1

Chloroform 1.9 1.0 0.29 ug/l SW846 8260C

JC57653-2 MW-4


JC57653-3 MW-6


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Sample Results

Report of Analysis

Dayton, NJSection 3

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Report of Analysis Page 1 of 3

Client Sample ID: MW-1 Lab Sample ID: JC57653-1 Date Sampled: 12/13/17 Matrix: AQ - Ground Water Date Received: 12/19/17 Method: SW846 8260C Percent Solids: n/a Project: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 2E139514.D 1 12/27/17 11:25 JP n/a n/a V2E6089Run #2

Purge VolumeRun #1 5.0 mlRun #2

VOA Full List + Oxygenates

CAS No. Compound Result RL MDL Units Q

67-64-1 Acetone ND 10 5.0 ug/l71-43-2 Benzene ND 0.50 0.17 ug/l108-86-1 Bromobenzene ND 1.0 0.25 ug/l74-97-5 Bromochloromethane ND 1.0 0.38 ug/l75-27-4 Bromodichloromethane ND 1.0 0.22 ug/l75-25-2 Bromoform ND 1.0 0.42 ug/l74-83-9 Bromomethane ND 2.0 1.4 ug/l78-93-3 2-Butanone (MEK) ND 10 4.8 ug/l104-51-8 n-Butylbenzene ND 2.0 0.27 ug/l135-98-8 sec-Butylbenzene ND 2.0 0.27 ug/l98-06-6 tert-Butylbenzene ND 2.0 0.34 ug/l56-23-5 Carbon tetrachloride ND 1.0 0.34 ug/l108-90-7 Chlorobenzene ND 1.0 0.24 ug/l75-00-3 Chloroethane ND 1.0 0.59 ug/l67-66-3 Chloroform 1.9 1.0 0.29 ug/l74-87-3 Chloromethane ND 1.0 0.53 ug/l95-49-8 o-Chlorotoluene ND 2.0 0.30 ug/l106-43-4 p-Chlorotoluene ND 2.0 0.24 ug/l108-20-3 Di-Isopropyl ether ND 2.0 0.20 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 2.0 0.69 ug/l124-48-1 Dibromochloromethane ND 1.0 0.16 ug/l106-93-4 1,2-Dibromoethane ND 1.0 0.21 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 0.50 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 0.50 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 0.50 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 1.9 ug/l75-34-3 1,1-Dichloroethane ND 1.0 0.21 ug/l107-06-2 1,2-Dichloroethane ND 1.0 0.20 ug/l75-35-4 1,1-Dichloroethene ND 1.0 0.47 ug/l156-59-2 cis-1,2-Dichloroethene ND 1.0 0.50 ug/l156-60-5 trans-1,2-Dichloroethene ND 1.0 0.40 ug/l78-87-5 1,2-Dichloropropane ND 1.0 0.24 ug/l

ND = Not detected MDL = Method Detection Limit J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

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33.1






142-28-9 1,3-Dichloropropane ND 1.0 0.28 ug/l594-20-7 2,2-Dichloropropane ND 1.0 0.30 ug/l563-58-6 1,1-Dichloropropene ND 1.0 0.29 ug/l10061-01-5 cis-1,3-Dichloropropene ND 1.0 0.25 ug/l10061-02-6 trans-1,3-Dichloropropene ND 1.0 0.22 ug/l100-41-4 Ethylbenzene ND 1.0 0.22 ug/l87-68-3 Hexachlorobutadiene ND 2.0 0.34 ug/l98-82-8 Isopropylbenzene ND 1.0 0.25 ug/l99-87-6 p-Isopropyltoluene ND 2.0 0.24 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 0.25 ug/l108-10-1 4-Methyl-2-pentanone(MIBK) ND 5.0 3.0 ug/l74-95-3 Methylene bromide ND 1.0 0.45 ug/l75-09-2 Methylene chloride ND 2.0 1.0 ug/l91-20-3 Naphthalene ND 5.0 1.1 ug/l103-65-1 n-Propylbenzene ND 2.0 0.24 ug/l100-42-5 Styrene ND 1.0 0.24 ug/l75-65-0 Tert Butyl Alcohol ND 10 7.0 ug/l994-05-8 tert-Amyl Methyl Ether ND 2.0 0.37 ug/l637-92-3 tert-Butyl Ethyl Ether ND 2.0 0.20 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 0.19 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 1.0 0.17 ug/l127-18-4 Tetrachloroethene ND 1.0 0.50 ug/l108-88-3 Toluene ND 1.0 0.25 ug/l87-61-6 1,2,3-Trichlorobenzene ND 1.0 0.50 ug/l120-82-1 1,2,4-Trichlorobenzene ND 1.0 0.50 ug/l71-55-6 1,1,1-Trichloroethane ND 1.0 0.25 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 0.24 ug/l79-01-6 Trichloroethene ND 1.0 0.27 ug/l75-69-4 Trichlorofluoromethane ND 2.0 0.60 ug/l96-18-4 1,2,3-Trichloropropane ND 2.0 0.47 ug/l95-63-6 1,2,4-Trimethylbenzene ND 2.0 0.24 ug/l108-67-8 1,3,5-Trimethylbenzene ND 2.0 0.20 ug/l75-01-4 Vinyl chloride ND 1.0 0.62 ug/l

m,p-Xylene ND 1.0 0.43 ug/l95-47-6 o-Xylene ND 1.0 0.22 ug/l1330-20-7 Xylene (total) ND 1.0 0.22 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 108% 80-120%


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33.1






17060-07-0 1,2-Dichloroethane-D4 109% 81-124%2037-26-5 Toluene-D8 101% 80-120%460-00-4 4-Bromofluorobenzene 104% 80-120%


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33.1



Client Sample ID: MW-1 Lab Sample ID: JC57653-1 Date Sampled: 12/13/17 Matrix: AQ - Ground Water Date Received: 12/19/17 Method: SW846 8015C SW846 3510C Percent Solids: n/a Project: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 a 2Z66464.D 1 12/27/17 20:27 TL 12/22/17 03:50 OP8866 G2Z2503Run #2

Initial Volume Final VolumeRun #1 300 ml 1.0 mlRun #2


TPH-DRO (C10-C28) ND 0.083 0.083 mg/l


84-15-1 o-Terphenyl 40% 22-140%16416-32-3 Tetracosane-d50 43% 13-139%438-22-2 5a-Androstane 35% 10-135%

(a) sample prepped outside of hold time


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33.1










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33.2











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33.2








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33.2







TPH-DRO (C10-C28) ND 0.083 0.083 mg/l





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33.2










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33.3











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33.3








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33.3







TPH-DRO (C10-C28) ND 0.083 0.083 mg/l





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33.3


Misc. Forms

Custody Documents and Other Forms

Includes the following where applicable:

• Chain of Custody

Dayton, NJSection 4

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4

L ~w CHAIN OF CUSTODY PAGE OFL SGS Accutest - Dayton SG$ 08810 FED-EX Tracking #

BO~lr l~ntro,i ·7/1- ,3 7 9-3499/3480

SGS Accutest Quote # SGS Accutest Job # ~(57~:)3

CCUTEST

Client I Reporting Informatton - - P~Jectlnfo~ation Requested An'I~.ll" TEST CODe sheen Matrix Codes Project Name:

;V(jf-~/\ QC inl ('tIV+, G:./~kJLcompan;t{~me

~ DW - Drinking Water

~fe-'( V\ GW - Ground Water

Street Addre~s S1

et WW-Water

i '5'£>50 {,,zJob~ t).~.J-t W,,{ lui lAt \s:.e. /k L.--) ~

~ sw - Surface Water

Billing Information ( if different from Report to) '1 SO-Soil

C~ State Zip'

CDi

State Company Name C SL- Sludge

t(;v~vll\~ IVtO ,9oRS5 '. UI\J.cl \ I'" /tIt0 ~ ~ SED-Sediment ~.

.~ '''l{'

"< Ol-Oil

Proiect Contact R E-mail prjC#

Street Address -::' LlQ - Other Liquid

--17J!-{ , 'l.D'!J/l'f.()f!..-e.... . IVtO~T -Oc t\ (-=:' .-; AIR-Air

~ 'r. SOL - Other Solid

Phbne # Fax # Client Purchase Order # City State Zip .,; d WP-Wipe

3Ci "lIt oJco \..( FB-Field Blank

Q EB-Equipment Blank Sampler(s) Na(tp Phone # prOie?!j.1aQaqe\. ~ . Attention : RB- Rinse Blank --r IetA~ U))) ~~q-e....

, ~-t-TB-Trip Blank

-r y,\Collection Number of preserved Bottles .-w

~ '-....J

SGS (3 w :c 0: ~:c 8 0

Accutest Sampled # of bottles ~

0 Kl z 0 l> ~ Sample # Field 10 / Point of Collection MEOH/DI Vial # Date Time by Matrix '" Z 0 W z LAB USE ONLY z :c :c z :; w

; fYlw-t 11Jd!l ·i 6£130 ;to [('-LJ 5' 3 i<. (" EJI '2. .1l.1 (J . '+ iuJv 1 I f 'f- ~.. Uc(t{-z-. 3 !\iW, b lJ~ leLt) 't' U iJ NJ ''/-.. Y-

1---'\

IN lTlAJ AC'. tC"C"l ~r:'fl 1Al l2tD r r"-'

U ~titL IVtH 1t"lli.'l IIU~

Tumaround Time ( Business days) Data Deliverable Information Comments / Special Instructions I

D Commercial"A" (Level 1 ) D NY ASP Category A IApproved By (SGS Accutest PM) : I Date:

~ Std. 10 Business Days ~ Commercial "B" ( Level 2) D NY ASP Category B I

5 Day RUSH FULLT1 (Level 3+4 ) n State Forms

o 3 Day RUSH D NJ Reduced D EDD Format

o 2DayRUSH D Commercial "e" D Other ___

o 1 Day RUSH D NJ Data of Known Quality Protocol Reporting

o other Commercial "A" = Results Only, Commercial "8" = Results + QC Summary

Emergency & Rush TIA data available VIA Lablink NJ Reduced = Results + QC Summary + Partial Raw data Samj)le inventol}'. is verified uQon recelQ.t in the LaboratoJY

Sample~u~tody ~ be documented below each time samp~hange possession, including courier delivery. ..L .. 1~;;V?rL Dar~1rLt (" ~t~,~ 1').;30 ~fin~ed;t~. J'\

Date Time:J'7 (}:J ~eceived By: ~ 1 A ' -IA "Ii,p............. .n I :l 'ii'!i - "'-' 2 J":JI_ / 'l Jh-l 1~/-' - "')

Relinquished by Sampler: DateT(me: R~/iVedBy: ,

~ ReW~edBy: , '\ Date Time: ./ Received By: -3 3 4 4

Relinquished by: Date Time: Received By: Custody Seal # 7~c.,.:;) Ll Intact Preserved where applicable On Ice J Cooler Temp.5 5 o Not intact 0 Q.. ,., L.//'

......-"-t-r-> Form:SM088-01 CRev Date:9/13/16

JC57653: Chain of CustodyPage 1 of 3

19 of 42

JC57653

44.1

Job Number: JC57653 Client: Apex

Date / Time Received: 12/19/2017 5:00:00 PM Delivery Method: Accutest Courier

Project: North Point Govt. Center

4. No. Coolers: 1

Airbill #'s:

Cooler Security

1. Custody Seals Present:

Y or N

2. Custody Seals Intact:

3. COC Present:

4. Smpl Dates/Time OK

2. Cooler temp verification:

Cooler Temperature Y or N

1. Temp criteria achieved:

3. Cooler media:

IR Gun

Ice (Bag)

Quality Control Preservation Y or N N/A

1. Trip Blank present / cooler:

2. Trip Blank listed on COC:

3. Samples preserved properly:

4. VOCs headspace free:

Sample Integrity - Documentation Y or N

1. Sample labels present on bottles:

2. Container labeling complete:

3. Sample container label / COC agree:

Sample Integrity - Condition Y or N

1. Sample recvd within HT:

3. Condition of sample:

2. All containers accounted for:

Sample Integrity - Instructions

1. Analysis requested is clear:

2. Bottles received for unspecified tests

3. Sufficient volume recvd for analysis:

4. Compositing instructions clear:

5. Filtering instructions clear:

Intact

Y or N

Comments -1 Rec'd limited volume of 1x 300ml for DRO, not 2 as listed on COC.

Y or N N/A

Cooler Temps (Raw Measured) °C:

Cooler Temps (Corrected) °C:

Cooler 1: (2.4);

Cooler 1: (3.3);

SM089-03Rev. Date 12/7/17

SGS Accutest Sample Receipt Summary

Test Strip Lot #s: pH 1-12: 216017 pH 12+: 208717 Other: (Specify)


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JC57653

44.1

Response:

Response: Proceed with analysis

Responded to by: CSR: N/A Response Date: Response Date: 12/19/2017


21 of 42

JC57653

44.1


MS Volatiles

QC Data Summaries


• Method Blank Summaries• Blank Spike Summaries• Matrix Spike and Duplicate Summaries• Instrument Performance Checks (BFB)• Surrogate Recovery Summaries

Dayton, NJSection 5

22 of 42

JC57653

5

Method Blank Summary Page 1 of 3 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchV2E6089-MB 2E139509.D 1 12/27/17 JP n/a n/a V2E6089

The QC reported here applies to the following samples: Method: SW846 8260C

JC57653-1, JC57653-2, JC57653-3


67-64-1 Acetone ND 10 5.0 ug/l71-43-2 Benzene ND 0.50 0.17 ug/l108-86-1 Bromobenzene ND 1.0 0.25 ug/l74-97-5 Bromochloromethane ND 1.0 0.38 ug/l75-27-4 Bromodichloromethane ND 1.0 0.22 ug/l75-25-2 Bromoform ND 1.0 0.42 ug/l74-83-9 Bromomethane ND 2.0 1.4 ug/l78-93-3 2-Butanone (MEK) ND 10 4.8 ug/l104-51-8 n-Butylbenzene ND 2.0 0.27 ug/l135-98-8 sec-Butylbenzene ND 2.0 0.27 ug/l98-06-6 tert-Butylbenzene ND 2.0 0.34 ug/l56-23-5 Carbon tetrachloride ND 1.0 0.34 ug/l108-90-7 Chlorobenzene ND 1.0 0.24 ug/l75-00-3 Chloroethane ND 1.0 0.59 ug/l67-66-3 Chloroform ND 1.0 0.29 ug/l74-87-3 Chloromethane ND 1.0 0.53 ug/l95-49-8 o-Chlorotoluene ND 2.0 0.30 ug/l106-43-4 p-Chlorotoluene ND 2.0 0.24 ug/l108-20-3 Di-Isopropyl ether ND 2.0 0.20 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 2.0 0.69 ug/l124-48-1 Dibromochloromethane ND 1.0 0.16 ug/l106-93-4 1,2-Dibromoethane ND 1.0 0.21 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 0.50 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 0.50 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 0.50 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 1.9 ug/l75-34-3 1,1-Dichloroethane ND 1.0 0.21 ug/l107-06-2 1,2-Dichloroethane ND 1.0 0.20 ug/l75-35-4 1,1-Dichloroethene ND 1.0 0.47 ug/l156-59-2 cis-1,2-Dichloroethene ND 1.0 0.50 ug/l156-60-5 trans-1,2-Dichloroethene ND 1.0 0.40 ug/l78-87-5 1,2-Dichloropropane ND 1.0 0.24 ug/l142-28-9 1,3-Dichloropropane ND 1.0 0.28 ug/l594-20-7 2,2-Dichloropropane ND 1.0 0.30 ug/l563-58-6 1,1-Dichloropropene ND 1.0 0.29 ug/l10061-01-5 cis-1,3-Dichloropropene ND 1.0 0.25 ug/l

23 of 42

JC57653

55.1.1




JC57653-1, JC57653-2, JC57653-3


10061-02-6 trans-1,3-Dichloropropene ND 1.0 0.22 ug/l100-41-4 Ethylbenzene ND 1.0 0.22 ug/l87-68-3 Hexachlorobutadiene ND 2.0 0.34 ug/l98-82-8 Isopropylbenzene ND 1.0 0.25 ug/l99-87-6 p-Isopropyltoluene ND 2.0 0.24 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 0.25 ug/l108-10-1 4-Methyl-2-pentanone(MIBK) ND 5.0 3.0 ug/l74-95-3 Methylene bromide ND 1.0 0.45 ug/l75-09-2 Methylene chloride ND 2.0 1.0 ug/l91-20-3 Naphthalene ND 5.0 1.1 ug/l103-65-1 n-Propylbenzene ND 2.0 0.24 ug/l100-42-5 Styrene ND 1.0 0.24 ug/l75-65-0 Tert Butyl Alcohol ND 10 7.0 ug/l994-05-8 tert-Amyl Methyl Ether ND 2.0 0.37 ug/l637-92-3 tert-Butyl Ethyl Ether ND 2.0 0.20 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 0.19 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 1.0 0.17 ug/l127-18-4 Tetrachloroethene ND 1.0 0.50 ug/l108-88-3 Toluene ND 1.0 0.25 ug/l87-61-6 1,2,3-Trichlorobenzene ND 1.0 0.50 ug/l120-82-1 1,2,4-Trichlorobenzene ND 1.0 0.50 ug/l71-55-6 1,1,1-Trichloroethane ND 1.0 0.25 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 0.24 ug/l79-01-6 Trichloroethene ND 1.0 0.27 ug/l75-69-4 Trichlorofluoromethane ND 2.0 0.60 ug/l96-18-4 1,2,3-Trichloropropane ND 2.0 0.47 ug/l95-63-6 1,2,4-Trimethylbenzene ND 2.0 0.24 ug/l108-67-8 1,3,5-Trimethylbenzene ND 2.0 0.20 ug/l75-01-4 Vinyl chloride ND 1.0 0.62 ug/l


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JC57653

55.1.1




JC57653-1, JC57653-2, JC57653-3

CAS No. Surrogate Recoveries Limits

1868-53-7 Dibromofluoromethane 107% 80-120%17060-07-0 1,2-Dichloroethane-D4 108% 81-124%2037-26-5 Toluene-D8 102% 80-120%460-00-4 4-Bromofluorobenzene 103% 80-120%

CAS No. Tentatively Identified Compounds R.T. Est. Conc. Units Q

Total TIC, Volatile 0 ug/l

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JC57653

55.1.1

Blank Spike Summary Page 1 of 3 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchV2E6089-BS 2E139510.D 1 12/27/17 JP n/a n/a V2E6089


JC57653-1, JC57653-2, JC57653-3

Spike BSP BSPCAS No. Compound ug/l ug/l % Limits

67-64-1 Acetone 200 189 95 42-15071-43-2 Benzene 50 49.7 99 80-120108-86-1 Bromobenzene 50 49.1 98 82-11874-97-5 Bromochloromethane 50 50.1 100 84-12175-27-4 Bromodichloromethane 50 52.8 106 83-12075-25-2 Bromoform 50 50.8 102 76-12974-83-9 Bromomethane 50 45.7 91 57-13878-93-3 2-Butanone (MEK) 200 208 104 64-137104-51-8 n-Butylbenzene 50 52.8 106 81-123135-98-8 sec-Butylbenzene 50 51.4 103 84-12198-06-6 tert-Butylbenzene 50 50.4 101 83-12256-23-5 Carbon tetrachloride 50 51.4 103 75-135108-90-7 Chlorobenzene 50 49.9 100 84-11775-00-3 Chloroethane 50 49.8 100 63-13267-66-3 Chloroform 50 50.8 102 80-11974-87-3 Chloromethane 50 49.1 98 46-13695-49-8 o-Chlorotoluene 50 51.0 102 84-118106-43-4 p-Chlorotoluene 50 51.0 102 83-116108-20-3 Di-Isopropyl ether 50 55.6 111 73-12896-12-8 1,2-Dibromo-3-chloropropane 50 47.0 94 72-127124-48-1 Dibromochloromethane 50 50.7 101 80-123106-93-4 1,2-Dibromoethane 50 50.1 100 84-11795-50-1 1,2-Dichlorobenzene 50 49.9 100 84-119541-73-1 1,3-Dichlorobenzene 50 49.4 99 81-117106-46-7 1,4-Dichlorobenzene 50 48.5 97 82-11775-71-8 Dichlorodifluoromethane 50 46.3 93 36-14975-34-3 1,1-Dichloroethane 50 53.3 107 79-120107-06-2 1,2-Dichloroethane 50 51.9 104 78-12675-35-4 1,1-Dichloroethene 50 49.8 100 69-126156-59-2 cis-1,2-Dichloroethene 50 50.7 101 80-120156-60-5 trans-1,2-Dichloroethene 50 52.0 104 76-12078-87-5 1,2-Dichloropropane 50 52.7 105 82-121142-28-9 1,3-Dichloropropane 50 51.8 104 83-115594-20-7 2,2-Dichloropropane 50 51.9 104 65-133563-58-6 1,1-Dichloropropene 50 51.5 103 80-12110061-01-5 cis-1,3-Dichloropropene 50 53.2 106 83-120

* = Outside of Control Limits.

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JC57653

55.2.1




JC57653-1, JC57653-2, JC57653-3

Spike BSP BSPCAS No. Compound ug/l ug/l % Limits

10061-02-6 trans-1,3-Dichloropropene 50 53.9 108 82-121100-41-4 Ethylbenzene 50 50.7 101 80-12087-68-3 Hexachlorobutadiene 50 48.3 97 75-12998-82-8 Isopropylbenzene 50 50.6 101 83-12099-87-6 p-Isopropyltoluene 50 52.6 105 83-1221634-04-4 Methyl Tert Butyl Ether 50 52.1 104 80-119108-10-1 4-Methyl-2-pentanone(MIBK) 200 209 105 71-13174-95-3 Methylene bromide 50 51.2 102 85-12075-09-2 Methylene chloride 50 51.1 102 77-12091-20-3 Naphthalene 50 51.2 102 73-131103-65-1 n-Propylbenzene 50 52.3 105 82-119100-42-5 Styrene 50 52.2 104 82-12275-65-0 Tert Butyl Alcohol 250 237 95 78-126994-05-8 tert-Amyl Methyl Ether 50 51.2 102 81-124637-92-3 tert-Butyl Ethyl Ether 50 54.7 109 79-128630-20-6 1,1,1,2-Tetrachloroethane 50 50.7 101 82-12179-34-5 1,1,2,2-Tetrachloroethane 50 50.6 101 76-119127-18-4 Tetrachloroethene 50 47.7 95 70-131108-88-3 Toluene 50 49.7 99 80-12087-61-6 1,2,3-Trichlorobenzene 50 49.1 98 76-134120-82-1 1,2,4-Trichlorobenzene 50 49.9 100 79-13271-55-6 1,1,1-Trichloroethane 50 51.2 102 81-12879-00-5 1,1,2-Trichloroethane 50 51.1 102 83-11879-01-6 Trichloroethene 50 51.1 102 80-12075-69-4 Trichlorofluoromethane 50 45.5 91 64-13696-18-4 1,2,3-Trichloropropane 50 49.2 98 79-12095-63-6 1,2,4-Trimethylbenzene 50 53.2 106 84-120108-67-8 1,3,5-Trimethylbenzene 50 53.4 107 83-11975-01-4 Vinyl chloride 50 49.3 99 51-135

m,p-Xylene 100 101 101 80-12095-47-6 o-Xylene 50 51.3 103 80-1201330-20-7 Xylene (total) 150 152 101 80-120


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JC57653

55.2.1




JC57653-1, JC57653-2, JC57653-3

CAS No. Surrogate Recoveries BSP Limits

1868-53-7 Dibromofluoromethane 106% 80-120%17060-07-0 1,2-Dichloroethane-D4 106% 81-124%2037-26-5 Toluene-D8 102% 80-120%460-00-4 4-Bromofluorobenzene 101% 80-120%


28 of 42

JC57653

55.2.1

Matrix Spike Summary Page 1 of 3 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchJC57653-3MS 2E139524.D 1 12/27/17 JP n/a n/a V2E6089JC57653-3 2E139516.D 1 12/27/17 JP n/a n/a V2E6089


JC57653-1, JC57653-2, JC57653-3

JC57653-3 Spike MS MSCAS No. Compound ug/l Q ug/l ug/l % Limits

67-64-1 Acetone ND 200 196 98 34-14971-43-2 Benzene ND 50 53.5 107 54-136108-86-1 Bromobenzene ND 50 51.1 102 78-12274-97-5 Bromochloromethane ND 50 53.0 106 79-12475-27-4 Bromodichloromethane ND 50 55.1 110 79-12475-25-2 Bromoform ND 50 50.0 100 71-13074-83-9 Bromomethane ND 50 51.5 103 53-14278-93-3 2-Butanone (MEK) ND 200 213 107 54-142104-51-8 n-Butylbenzene ND 50 58.3 117 73-133135-98-8 sec-Butylbenzene ND 50 56.6 113 76-13298-06-6 tert-Butylbenzene ND 50 54.7 109 76-13156-23-5 Carbon tetrachloride ND 50 58.3 117 70-143108-90-7 Chlorobenzene ND 50 52.1 104 78-12375-00-3 Chloroethane ND 50 57.3 115 57-14167-66-3 Chloroform 1.5 50 56.7 110 76-12374-87-3 Chloromethane ND 50 56.6 113 43-14195-49-8 o-Chlorotoluene ND 50 53.8 108 78-124106-43-4 p-Chlorotoluene ND 50 54.9 110 77-122108-20-3 Di-Isopropyl ether ND 50 61.3 123 68-13096-12-8 1,2-Dibromo-3-chloropropane ND 50 49.1 98 66-130124-48-1 Dibromochloromethane ND 50 51.6 103 76-125106-93-4 1,2-Dibromoethane ND 50 49.4 99 78-11995-50-1 1,2-Dichlorobenzene ND 50 51.7 103 77-123541-73-1 1,3-Dichlorobenzene ND 50 52.1 104 76-122106-46-7 1,4-Dichlorobenzene ND 50 50.6 101 76-12275-71-8 Dichlorodifluoromethane ND 50 56.3 113 31-15975-34-3 1,1-Dichloroethane ND 50 60.1 120 73-126107-06-2 1,2-Dichloroethane ND 50 55.1 110 72-13175-35-4 1,1-Dichloroethene ND 50 60.4 121 63-136156-59-2 cis-1,2-Dichloroethene ND 50 54.2 108 60-136156-60-5 trans-1,2-Dichloroethene ND 50 59.8 120 70-12678-87-5 1,2-Dichloropropane ND 50 56.6 113 78-124142-28-9 1,3-Dichloropropane ND 50 53.0 106 78-118594-20-7 2,2-Dichloropropane ND 50 59.3 119 59-141563-58-6 1,1-Dichloropropene ND 50 58.4 117 75-13010061-01-5 cis-1,3-Dichloropropene ND 50 55.0 110 79-123


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JC57653

55.3.1




JC57653-1, JC57653-2, JC57653-3

JC57653-3 Spike MS MSCAS No. Compound ug/l Q ug/l ug/l % Limits

10061-02-6 trans-1,3-Dichloropropene ND 50 56.0 112 77-123100-41-4 Ethylbenzene ND 50 54.0 108 51-14087-68-3 Hexachlorobutadiene ND 50 52.1 104 64-14198-82-8 Isopropylbenzene ND 50 53.8 108 75-12999-87-6 p-Isopropyltoluene ND 50 56.9 114 76-1311634-04-4 Methyl Tert Butyl Ether ND 50 55.5 111 72-123108-10-1 4-Methyl-2-pentanone(MIBK) ND 200 208 104 66-13674-95-3 Methylene bromide ND 50 52.6 105 81-12175-09-2 Methylene chloride ND 50 56.0 112 73-12591-20-3 Naphthalene ND 50 52.1 104 62-141103-65-1 n-Propylbenzene ND 50 57.5 115 68-133100-42-5 Styrene ND 50 53.9 108 75-12975-65-0 Tert Butyl Alcohol ND 250 250 100 73-134994-05-8 tert-Amyl Methyl Ether ND 50 53.1 106 75-127637-92-3 tert-Butyl Ethyl Ether ND 50 59.3 119 74-130630-20-6 1,1,1,2-Tetrachloroethane ND 50 52.1 104 77-12479-34-5 1,1,2,2-Tetrachloroethane ND 50 52.6 105 71-122127-18-4 Tetrachloroethene ND 50 50.4 101 61-139108-88-3 Toluene ND 50 52.7 105 60-13587-61-6 1,2,3-Trichlorobenzene ND 50 50.7 101 70-138120-82-1 1,2,4-Trichlorobenzene ND 50 51.9 104 72-13771-55-6 1,1,1-Trichloroethane ND 50 57.3 115 74-13879-00-5 1,1,2-Trichloroethane ND 50 53.0 106 78-12179-01-6 Trichloroethene ND 50 54.7 109 62-14175-69-4 Trichlorofluoromethane ND 50 56.0 112 57-14996-18-4 1,2,3-Trichloropropane ND 50 50.0 100 74-12295-63-6 1,2,4-Trimethylbenzene ND 50 56.8 114 54-143108-67-8 1,3,5-Trimethylbenzene ND 50 57.3 115 67-13375-01-4 Vinyl chloride ND 50 58.2 116 43-146

m,p-Xylene ND 100 107 107 50-14495-47-6 o-Xylene ND 50 54.2 108 63-1341330-20-7 Xylene (total) ND 150 161 107 56-139


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55.3.1




JC57653-1, JC57653-2, JC57653-3

CAS No. Surrogate Recoveries MS JC57653-3 Limits

1868-53-7 Dibromofluoromethane 108% 106% 80-120%17060-07-0 1,2-Dichloroethane-D4 110% 106% 81-124%2037-26-5 Toluene-D8 103% 102% 80-120%460-00-4 4-Bromofluorobenzene 105% 103% 80-120%


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JC57653

55.3.1

Duplicate Summary Page 1 of 3 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchJC57653-1DUP 2E139526.D 1 12/27/17 JP n/a n/a V2E6089JC57653-1 2E139514.D 1 12/27/17 JP n/a n/a V2E6089


JC57653-1, JC57653-2, JC57653-3

JC57653-1 DUPCAS No. Compound ug/l Q ug/l Q RPD Limits

67-64-1 Acetone ND ND nc 2071-43-2 Benzene ND ND nc 20108-86-1 Bromobenzene ND ND nc 2074-97-5 Bromochloromethane ND ND nc 2075-27-4 Bromodichloromethane ND ND nc 2075-25-2 Bromoform ND ND nc 2074-83-9 Bromomethane ND ND nc 2078-93-3 2-Butanone (MEK) ND ND nc 20104-51-8 n-Butylbenzene ND ND nc 20135-98-8 sec-Butylbenzene ND ND nc 2098-06-6 tert-Butylbenzene ND ND nc 2056-23-5 Carbon tetrachloride ND ND nc 20108-90-7 Chlorobenzene ND ND nc 2075-00-3 Chloroethane ND ND nc 2067-66-3 Chloroform 1.9 1.9 0 2074-87-3 Chloromethane ND ND nc 2095-49-8 o-Chlorotoluene ND ND nc 20106-43-4 p-Chlorotoluene ND ND nc 20108-20-3 Di-Isopropyl ether ND ND nc 2096-12-8 1,2-Dibromo-3-chloropropane ND ND nc 20124-48-1 Dibromochloromethane ND ND nc 20106-93-4 1,2-Dibromoethane ND ND nc 2095-50-1 1,2-Dichlorobenzene ND ND nc 20541-73-1 1,3-Dichlorobenzene ND ND nc 20106-46-7 1,4-Dichlorobenzene ND ND nc 2075-71-8 Dichlorodifluoromethane ND ND nc 2075-34-3 1,1-Dichloroethane ND ND nc 20107-06-2 1,2-Dichloroethane ND ND nc 2075-35-4 1,1-Dichloroethene ND ND nc 20156-59-2 cis-1,2-Dichloroethene ND ND nc 20156-60-5 trans-1,2-Dichloroethene ND ND nc 2078-87-5 1,2-Dichloropropane ND ND nc 20142-28-9 1,3-Dichloropropane ND ND nc 20594-20-7 2,2-Dichloropropane ND ND nc 20563-58-6 1,1-Dichloropropene ND ND nc 2010061-01-5 cis-1,3-Dichloropropene ND ND nc 20


32 of 42

JC57653

55.4.1




JC57653-1, JC57653-2, JC57653-3

JC57653-1 DUPCAS No. Compound ug/l Q ug/l Q RPD Limits

10061-02-6 trans-1,3-Dichloropropene ND ND nc 20100-41-4 Ethylbenzene ND ND nc 2087-68-3 Hexachlorobutadiene ND ND nc 2098-82-8 Isopropylbenzene ND ND nc 2099-87-6 p-Isopropyltoluene ND ND nc 201634-04-4 Methyl Tert Butyl Ether ND ND nc 20108-10-1 4-Methyl-2-pentanone(MIBK) ND ND nc 2074-95-3 Methylene bromide ND ND nc 2075-09-2 Methylene chloride ND ND nc 2091-20-3 Naphthalene ND ND nc 20103-65-1 n-Propylbenzene ND ND nc 20100-42-5 Styrene ND ND nc 2075-65-0 Tert Butyl Alcohol ND ND nc 20994-05-8 tert-Amyl Methyl Ether ND ND nc 20637-92-3 tert-Butyl Ethyl Ether ND ND nc 20630-20-6 1,1,1,2-Tetrachloroethane ND ND nc 2079-34-5 1,1,2,2-Tetrachloroethane ND ND nc 20127-18-4 Tetrachloroethene ND ND nc 20108-88-3 Toluene ND ND nc 2087-61-6 1,2,3-Trichlorobenzene ND ND nc 20120-82-1 1,2,4-Trichlorobenzene ND ND nc 2071-55-6 1,1,1-Trichloroethane ND ND nc 2079-00-5 1,1,2-Trichloroethane ND ND nc 2079-01-6 Trichloroethene ND ND nc 2075-69-4 Trichlorofluoromethane ND ND nc 2096-18-4 1,2,3-Trichloropropane ND ND nc 2095-63-6 1,2,4-Trimethylbenzene ND ND nc 20108-67-8 1,3,5-Trimethylbenzene ND ND nc 2075-01-4 Vinyl chloride ND ND nc 20

m,p-Xylene ND ND nc 2095-47-6 o-Xylene ND ND nc 201330-20-7 Xylene (total) ND ND nc 20


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JC57653

55.4.1




JC57653-1, JC57653-2, JC57653-3

CAS No. Surrogate Recoveries DUP JC57653-1 Limits

1868-53-7 Dibromofluoromethane 106% 108% 80-120%17060-07-0 1,2-Dichloroethane-D4 108% 109% 81-124%2037-26-5 Toluene-D8 102% 101% 80-120%460-00-4 4-Bromofluorobenzene 103% 104% 80-120%


34 of 42

JC57653

55.4.1

Instrument Performance Check (BFB) Page 1 of 1 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Sample: V2E6079-BFB Injection Date: 12/19/17Lab File ID: 2E139290.D Injection Time: 19:23 Instrument ID: GCMS2E

Raw % Relativem/e Ion Abundance Criteria Abundance Abundance Pass/Fail

50 15.0 - 40.0% of mass 95 32416 16.3 Pass75 30.0 - 60.0% of mass 95 87989 44.2 Pass95 Base peak, 100% relative abundance 199083 100.0 Pass96 5.0 - 9.0% of mass 95 13523 6.79 Pass173 Less than 2.0% of mass 174 1142 0.57 (0.73) a Pass174 50.0 - 120.0% of mass 95 156992 78.9 Pass175 5.0 - 9.0% of mass 174 11148 5.60 (7.10) a Pass176 95.0 - 101.0% of mass 174 150891 75.8 (96.1) a Pass177 5.0 - 9.0% of mass 176 10092 5.07 (6.69) b Pass

(a) Value is % of mass 174(b) Value is % of mass 176

This check applies to the following Samples, MS, MSD, Blanks, and Standards:

Lab Lab Date Time Hours ClientSample ID File ID Analyzed Analyzed Lapsed Sample ID

V2E6079-IC6079 2E139291.D 12/19/17 20:13 00:50 Initial cal 0.2V2E6079-IC6079 2E139292.D 12/19/17 20:41 01:18 Initial cal 0.5V2E6079-IC6079 2E139293.D 12/19/17 21:09 01:46 Initial cal 1V2E6079-IC6079 2E139294.D 12/19/17 21:36 02:13 Initial cal 2V2E6079-IC6079 2E139295.D 12/19/17 22:04 02:41 Initial cal 5V2E6079-IC6079 2E139296.D 12/19/17 22:32 03:09 Initial cal 10V2E6079-IC6079 2E139297.D 12/19/17 22:59 03:36 Initial cal 20V2E6079-ICC6079 2E139298.D 12/19/17 23:27 04:04 Initial cal 50V2E6079-IC6079 2E139299.D 12/19/17 23:54 04:31 Initial cal 100V2E6079-IC6079 2E139300.D 12/20/17 00:21 04:58 Initial cal 200V2E6079-ICV6079 2E139303.D 12/20/17 01:43 06:20 Initial cal verification 50V2E6079-ICV6079 2E139304.D 12/20/17 02:11 06:48 Initial cal verification 50

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55.5.1

Instrument Performance Check (BFB) Page 1 of 1 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Sample: V2E6089-BFB Injection Date: 12/27/17Lab File ID: 2E139508.D Injection Time: 08:28 Instrument ID: GCMS2E

Raw % Relativem/e Ion Abundance Criteria Abundance Abundance Pass/Fail

50 15.0 - 40.0% of mass 95 21995 18.9 Pass75 30.0 - 60.0% of mass 95 54859 47.2 Pass95 Base peak, 100% relative abundance 116301 100.0 Pass96 5.0 - 9.0% of mass 95 7877 6.77 Pass173 Less than 2.0% of mass 174 503 0.43 (0.60) a Pass174 50.0 - 120.0% of mass 95 83739 72.0 Pass175 5.0 - 9.0% of mass 174 5969 5.13 (7.13) a Pass176 95.0 - 101.0% of mass 174 82712 71.1 (98.8) a Pass177 5.0 - 9.0% of mass 176 5379 4.63 (6.50) b Pass

(a) Value is % of mass 174(b) Value is % of mass 176

This check applies to the following Samples, MS, MSD, Blanks, and Standards:

Lab Lab Date Time Hours ClientSample ID File ID Analyzed Analyzed Lapsed Sample ID

V2E6089-CC6079 2E139508.D 12/27/17 08:28 00:00 Continuing cal 20V2E6089-MB 2E139509.D 12/27/17 09:07 00:39 Method BlankV2E6089-BS 2E139510.D 12/27/17 09:35 01:07 Blank SpikeZZZZZZ 2E139512.D 12/27/17 10:30 02:02 (unrelated sample)ZZZZZZ 2E139513.D 12/27/17 10:57 02:29 (unrelated sample)JC57653-1 2E139514.D 12/27/17 11:25 02:57 MW-1JC57653-2 2E139515.D 12/27/17 11:53 03:25 MW-4JC57653-3 2E139516.D 12/27/17 12:20 03:52 MW-6ZZZZZZ 2E139517.D 12/27/17 12:51 04:23 (unrelated sample)ZZZZZZ 2E139518.D 12/27/17 13:18 04:50 (unrelated sample)ZZZZZZ 2E139519.D 12/27/17 13:46 05:18 (unrelated sample)ZZZZZZ 2E139520.D 12/27/17 14:14 05:46 (unrelated sample)ZZZZZZ 2E139521.D 12/27/17 14:52 06:24 (unrelated sample)ZZZZZZ 2E139522.D 12/27/17 15:19 06:51 (unrelated sample)ZZZZZZ 2E139523.D 12/27/17 15:49 07:21 (unrelated sample)JC57653-3MS 2E139524.D 12/27/17 16:16 07:48 Matrix SpikeJC57653-1DUP 2E139526.D 12/27/17 17:12 08:44 DuplicateZZZZZZ 2E139527.D 12/27/17 17:40 09:12 (unrelated sample)ZZZZZZ 2E139528.D 12/27/17 18:07 09:39 (unrelated sample)ZZZZZZ 2E139529.D 12/27/17 18:35 10:07 (unrelated sample)

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JC57653

55.5.2

Surrogate Recovery Summary Page 1 of 1 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Method: SW846 8260C Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 S2 S3 S4

JC57653-1 2E139514.D 108 109 101 104JC57653-2 2E139515.D 107 106 101 103JC57653-3 2E139516.D 106 106 102 103JC57653-1DUP 2E139526.D 106 108 102 103JC57653-3MS 2E139524.D 108 110 103 105V2E6089-BS 2E139510.D 106 106 102 101V2E6089-MB 2E139509.D 107 108 102 103

Surrogate RecoveryCompounds Limits

S1 = Dibromofluoromethane 80-120%S2 = 1,2-Dichloroethane-D4 81-124%S3 = Toluene-D8 80-120%S4 = 4-Bromofluorobenzene 80-120%

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JC57653

55.6.1


GC/LC Semi-volatiles

QC Data Summaries


• Method Blank Summaries• Blank Spike Summaries• Matrix Spike and Duplicate Summaries• Surrogate Recovery Summaries

Dayton, NJSection 6

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6


Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP8866-MB1 2Z66454.D 1 12/27/17 TL 12/22/17 OP8866 G2Z2503


JC57653-1, JC57653-2, JC57653-3


TPH-DRO (C10-C28) ND 0.083 0.083 mg/l

CAS No. Surrogate Recoveries Limits


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JC57653

66.1.1


Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP8866-BS1 2Z66455.D 1 12/27/17 TL 12/22/17 OP8866 G2Z2503


JC57653-1, JC57653-2, JC57653-3

Spike BSP BSPCAS No. Compound mg/l mg/l % Limits

TPH-DRO (C10-C28) 3.33 2.41 72 29-114

CAS No. Surrogate Recoveries BSP Limits



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JC57653

66.2.1

Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP8866-MS 2Z66457.D 1 12/27/17 TL 12/22/17 OP8866 G2Z2503OP8866-MSD 2Z66458.D 1 12/27/17 TL 12/22/17 OP8866 G2Z2503JC57682-1 2Z66456.D 1 12/27/17 TL 12/22/17 OP8866 G2Z2503


JC57653-1, JC57653-2, JC57653-3

JC57682-1 Spike MS MS Spike MSD MSD LimitsCAS No. Compound mg/l Q mg/l mg/l % mg/l mg/l % RPD Rec/RPD

TPH-DRO (C10-C28) 0.313 6.67 5.40 76 6.67 5.43 77 1 10-141/14

CAS No. Surrogate Recoveries MS MSD JC57682-1 Limits

84-15-1 o-Terphenyl 84% 84% 78% 22-140%16416-32-3 Tetracosane-d50 89% 89% 92% 13-139%438-22-2 5a-Androstane 94% 93% 93% 10-135%


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JC57653

66.3.1

Surrogate Recovery Summary Page 1 of 1 Job Number: JC57653Account: ACMDR Apex Companies, LLCProject: North Point Government Facility, 7701 Wise Avenue, Dundalk, MD

Method: SW846 8015C Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 a S2 a S3 a

JC57653-1 2Z66464.D 40 43 35JC57653-2 2Z66465.D 66 44 40JC57653-3 2Z66466.D 66 47 46OP8866-BS1 2Z66455.D 86 91 95OP8866-MB1 2Z66454.D 80 89 93OP8866-MS 2Z66457.D 84 89 94OP8866-MSD 2Z66458.D 84 89 93

Surrogate RecoveryCompounds Limits

S1 = o-Terphenyl 22-140%S2 = Tetracosane-d50 13-139%S3 = 5a-Androstane 10-135%

(a) Recovery from GC signal #1

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JC57653

66.4.1