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Froehling & Robertson, Inc. 3015 Dumbarton Road Richmond, Virginia 23228 T 804.264.2701 www.fandr.com

A Minority-Owned Business

Shallow Sub-Surface Soil and Wipe Sampling & Analysis for Lead Salt Dome Demolition

4753 Old Dominion Drive Arlington, Virginia 22207

F&R Project No. 72W-0151

Prepared For: John Mir

Project Manager Facilities Design & Construction

Department of Environmental Services 1400 N Uhle St. Suite 403 Arlington, Virginia 22201

Prepared By: Froehling & Robertson, Inc.

22923 Quicksilver Dr., Suite 111 Dulles, Virginia 20166 Phone: 703.996.0123

01/31/2019

Prepared by: Reviewed by: Stephanie Santiago Jesse Phillips Environmental Scientist Senior Environmental Professional

Sub-Surface Soil Sample & Analysis - Salt Dome Structure 4753 Old Dominion Drive, Arlington, VA. F&R Project Number: 72W-0151 i January 31, 2019

Table of Contents 1.0 Executive Summary: ............................................................................................................ 1

2.0 Background: ........................................................................................................................ 2

2.1 Site Description: .............................................................................................................. 2

2.2 Scope of Services: ........................................................................................................... 2

3.0 Soil Sampling and Analysis: ................................................................................................. 3

3.1 Soil Sampling Methodology: ........................................................................................... 3

3.2 Wipe Sampling Methodology ......................................................................................... 4

3.3 Laboratory Analysis Results ............................................................................................ 4

3.3.1 Soil Sample Analytical Results ................................................................................. 4

3.3.2 Wipe Sample Analytical Results .............................................................................. 6

3.3.3 Toxicity Characteristic Leaching Procedure (TCLP) Lead Analysis .......................... 7

4.0 Conclusions and Recommendations ................................................................................... 7

5.0 Limitations........................................................................................................................... 8

Appendices

Appendix A Site Sampling Location Diagram Appendix B Site Photographs Appendix C Laboratory Certificates of Analysis and Chain of Custody Documentation

Sub-Surface Soil Sample & Analysis - Salt Dome Structure 4753 Old Dominion Drive, Arlington, VA. F&R Project Number: 72W-0151 1 January 31, 2019

Shallow Sub-Surface Soil and Wipe Sampling & Analysis for Lead

Salt Dome Structure 4753 Old Dominion Drive

Arlington, Virginia F&R Project No. 72W-0151

1.0 EXECUTIVE SUMMARY: Froehling & Robertson, Inc. (F&R) completed pre-demolition and post-demolition shallow sub-surface soil and asphalt and/or concrete wipe sampling and analysis for lead in the surrounding area of the salt dome structure on the subject property located at 4753 Old Dominion Drive, Arlington, Virginia. The salt dome structure exterior was painted with lead based paint. The sampling and analysis was performed to determine lead concentrations adjacent to and surrounding the salt dome prior to and after demolition of the structure. Per the Client’s request, F&R conducted shallow sub-surface soil sampling and analysis in areas surrounding the salt dome structure. Additionally, F&R conducted lead wipe sampling and analysis of the surrounding asphalt and/or concrete of the salt dome structure due to limited accessibility of the surrounding/underlying shallow subsurface soils on the south side of the existing structure. Based on the shallow sub-surface soil and asphalt and/or concrete dust wipe sampling and analysis, lead concentrations were identified in the soils and asphalt and/or concrete surrounding the salt dome structure. Prior to demolition activities the shallow sub-surface soil laboratory analytical results documented levels surrounding the salt dome structure below the Virginia Department of Environmental Quality (VDEQ) – Voluntary Remediation Program (VRP), Tier III Industrial Soil Screening Level for lead of 800 milligrams per kilograms (mg/kg). All samples collected along the boundary roadway, 25th Road North were below the VDEQ – VRP, Tier II Residential Soil Screening Level for lead of 270 mg/kg . The results of the soil and wipe samples collected after demolition of the salt dome structure indicated that lead concentrations along the boundary roadway, 25th Road North were below VDEQ – VRP, Tier II Residential Soil Screening Level. Two (2) soil samples collected from the soils surrounding the previous salt dome structure exceeded the VDEQ – VRP, Tier III Industrial Soil Screening Level for lead; and the wipe samples collected from the asphalt and/or concrete on the south side of the structure were significantly elevated in comparison to the wipe samples collected prior to demolition of the structure. Toxicity Characteristic Leaching Procedure (TCLP) Lead by EPA Method SW-846 6020A analysis was performed on the two (2) soil samples that exceeded the VDEQ – VRP Tier III Industrial Soil Screening Level for lead. The Environmental Protection Agency (EPA) Regulatory Limit for lead is 5.0 parts per million (ppm) or milligrams per liter (mg/l). The laboratory analytical results


indicated that the soil samples are below the EPA Regulatory Limit, and is not classified as a hazardous waste for lead.

The Areas of Concern (AOC) for elevated lead contamination are shown on Figure 3 in Appendix A of this report.

This report provides the results and recommendations for addressing the lead concentration levels detected above the VDEQ - VRP, Tier III Industrial Soil Screening Level for lead. 2.0 BACKGROUND:

2.1 Site Description: The salt dome structure property is located at 4753 Old Dominion Drive, Arlington, Virginia within a suburban area of commercial and residential development. The exterior of the salt dome structure was coated with lead based paint. The surrounding nearby properties include Arlington Osteopathic General Practice, Hani Thariani Orthodontics, AMC Physical Therapy, B. Blair Morris DDS PC, Children’s House Montessori, Marymount University, and residential structures. The Property is within an area currently bounded by Old Dominion Dr. to the southwest, across which is Arlington Osteopathic General Practice, Hani Thariani Orthodontics, AMC Physical Therapy, B. Blair Morris DDS PC, and Children’s House Montessori; 25th Road North to the east, across which is residential structures, and 26th Street North to the northwest, across which is Marymount University.

2.2 Scope of Services: Per Proposal Number 1962-00257, December 28, 2018, the scope of services included the following:

Conduct limited sampling during two sampling events, one prior to demolition activities and one after demolition activities had been completed, of the shallow subsurface soils in the surrounding area of the Salt Dome Structure and of the soils along the bounding roadway, 25th Road North, utilizing hand auger and shoveling techniques to collect a series of up to twenty-five (25) representative composite samples.

Submit soil samples for analysis for Lead by EPA Method 6020A and Toxicity Characteristic Leaching Procedure (TCLP) Lead by EPA Method SW-846 6020A, as necessary. The threshold for submitting samples for TCLP analysis was based on whether the concentration of lead in soil exceeded the concentration identified in the Virginia Department of Environmental Quality (DEQ) Voluntary Remediation Program (VRP) Tier III Industrial Soil Screening Level for lead.

Collect wipe samples for analysis for Lead by EPA Method 6020A, of the asphalt and/or concrete that surrounds the Salt Dome Structure due to the limited accessibility of the


surrounding/underlying shallow subsurface soils. The modification to the original scope was made based on discussions with the Arlington County Project Manager, John Mir, and as outlined in an email, dated December 14, 2018.

3.0 SAMPLING AND ANALYSIS:

3.1 Soil Sampling Methodology: F&R conducted two (2) sampling events, one (1) prior to demolition activities and one (1) after demolition activities were completed, of the shallow sub-surface soils in the adjacent and surrounding area of the structure located on the Property, and along the bounding roadway, 25th Road North. Shallow sub-surface soil samples were collected utilizing hand auger and shovel techniques. Two (2) discrete grab samples were collected at one (1’) foot intervals to a max depth of two (2’) feet. The two (2) discrete grab samples were then composited into one (1) representative composite sample from each individual location discussed below. A total of twenty-five (25) shallow sub-surface soil samples were collected and analyzed for Lead by EPA Method 6020A; and a total of two (2) shallow sub-surface soil samples were analyzed for TCLP Lead by EPA Method SW-846 6020A. F&R conducted the first shallow sub-surface soil sampling event prior to demolition of the Salt Dome Structure on January 2, 2019. A total of seven (7) representative composite samples were collected from seven (7) different locations as follows. Four (4) representative composite samples were collected from four (4) different locations in the adjacent and surrounding area of the existing structure. Based on the client’s request, three (3) representative composite samples were collected from three (3) different locations along the bounding roadway, 25th Road North. The shallow sub-surface soil samples were analyzed for Lead by EPA Method 6020A. Samples collected during the January 2, 2019 event were not submitted for TCLP analysis since none of these samples exceeded the DEQ VRP Tier III Industrial Soil Screening Level for lead. F&R conducted the second shallow sub-surface soil sampling event after demolition of the Salt Dome Structure on January 11, 2018. A total of eighteen (18) representative composite samples were collected from eighteen (18) different locations as follows. Nine (9) representative composite samples were collected from nine (9) different locations in the adjacent and surrounding area of the former structure. Based on the client’s request, the other nine (9) representative composite samples were collected from nine (9) different locations along the bounding roadway, 25th Road North. The shallow sub-surface soil samples were analyzed for Lead by EPA Method 6020A. Following the analysis, two (2) shallow sub-surface soil samples which indicated lead concentrations above the VDEQ –VRP Tier III Industrial Soil Screening Level, were analyzed for TCLP Lead by EPA Method SW-846 6020A. Shallow Sub-Surface Soil Sampling Location Maps depicting the general locations of the sub-surface soil samples prior to and following demolition are shown in Figure 1 and Figure 2,


respectively, and included as Appendix A of this report. Photographic documentation is included in Appendix B. Copies of the Laboratory Certificates of Analysis and Chain of Custody forms are included in Appendix C.

3.2 Wipe Sampling Methodology:

Additionally, F&R performed wipe sampling of the asphalt and/or concrete surfaces surrounding the salt dome structure, per modification of to the original scope based on discussions with the Arlington County Project Manager, John Mir. A total of six (6) wipe samples were collected at three (3) different locations as follows. On January 2, 2019, three (3) wipe samples were collected from three (3) different locations in the area surrounding the existing structure prior to demolition. On January 11, 2019, after demolition of the structure, three (3) wipe samples were collected from approximately the same locations previously sampled prior to demolition. Dust samples were taken with disposable wipes over approximately one square foot area. The wipes (Environmental Express, Ghost Wipe™) meet the ASTM E1792-96a specification criteria as a suitable material for lead wipe sampling of surface dust. The wipe samples were analyzed for Lead by EPA Method 6020A.

A Lead Wipe Sampling Location Map depicting the general locations of the wipe samples is included as Appendix A of this report. Photographic documentation is included in Appendix B. Copies of the Laboratory Certificates of Analysis and Chain of Custody forms are included in Appendix C.

3.3 Laboratory Analysis Results:

3.3.1 Soil Sample Analytical Results

A total of twenty-five (25) shallow sub-surface soil samples were collected from different locations in the surrounding area of the structure located on the Property, and along the bounding roadway, 25th Road North. The samples were submitted for analysis of Lead by EPA Method 6020A. The laboratory analytical results of all soil samples collected were compared to VDEQ VRP Screening Levels; Based on EPA Region 3 RSL Update: May 2018. The results of the soil samples collected in the adjacent and surrounding area of the Salt Dome Structure were compared to VDEQ VRP Tier III Industrial Soil Screening Level for lead, 800 mg/kg. The results of the soil samples collected along the bounding roadway, 25th Road North, were compared to VDEQ VRP Tier II Residential Soil Screening Level for lead, 270 mg/kg. The results of the laboratory analyses for soil are given in Table 1. Where the concentration exceeds the relevant comparative value, the texted is BOLDED.


Table 1: Analytical Results: Soil Sample Analytical Results

Sample I.D. Sample Location Lead by EPA Method 6020A Units

Soil Sampling Event 01/02/2019

VDEQ VRP Tier III Industrial Soil Screening Level 800 mg/kg

SS-1 Surrounding the Structure 150 mg/kg

SS-2 Surrounding the structure 610 mg/kg



VDEQ VRP Tier II Residential Soil Screening Level 270 mg/kg

SS-5 Along 25th Road North 93 mg/kg



Soil Sampling Event 01/11/2019

VDEQ VRP Tier III Industrial Soil Screening Level 800 mg/kg

SD-1 Surrounding the structure 850 mg/kg







SD-8 Surrounding the structure 1,300 mg/kg


VDEQ VRP Tier II Residential Soil Screening Level 270 mg/kg

SD-10 Along 25th Road North 130 mg/kg








SD-18 Along 25th Road North 15 mg/kg **Bold indicates concentration levels above the VDEQ VRP Tier III Industrial Soil Screening Level.

The shallow sub-surface soil samples collected on January 2, 2019, prior to demolition of the Salt Dome Structure indicated lead concentrations below VDEQ VRP Screening Levels for lead. The soil samples collected from the area adjacent to and surrounding the Salt Dome Structure are identified as SS-1 to SS-4, and were detected below the VDEQ VRP Tier III Industrial Soil Screening Level for lead. The soil samples collected along the bounding roadway, 25th Road North, were compared to VDEQ VRP Tier II Residential Soil Screening Level for lead, 270 mg/kg, because the bounding roadway acts as a barrier separating the Property and Residential


Structures. The soil samples identified as SS-5 to SS-7 were detected below the VDEQ VRP Tier II Residential Soil Screening Level for lead. Two (2) of the nine (9) samples collected on January 11, 2019, after demolition of the Salt Dome Structure, indicated lead concentrations above VDEQ VRP Tier III Industrial Soil Screening Levels for lead in the area adjacent and surrounding the former Salt Dome Structure. The soil samples collected adjacent and surrounding the former salt dome structure are identified as SD-1 to SD-9. Two (2) out of the nine (9) soil samples were detected above the VDEQ VRP Tier III Industrial Soil Screening Level for lead of 800 mg/kg. These samples are identified as SD-1 with a lead concentration level of 850 mg/kg, and SD-8 with a lead concentration level of 1, 300 mg/kg. The soil samples collected along the bounding roadway, 25th Road North, are identified as SD-10 to SD-18. The laboratory analytical results indicated detection limits for all samples collected in this area are below the VDEQ VRP Tier II Residential Soil Screening Level for lead, 270 mg/kg.

3.3.2 Wipe Sample Analytical Results

In order to evaluate lead levels prior to and after demolition, a total of six (6) wipe samples were collected from three (3) different locations in the surrounding area of the structure. Three (3) samples were collected prior to demolition and three (3) samples were collected at approximately the same locations after demolition; both sample events included sampling from approximately one square foot area. Samples were submitted for analysis of Lead by EPA Method 6020A. The results of the laboratory analyses for the wipe samples are given in Table 2. Note that the results are reported in units of µg/wipe; based on the sample area of 1 square foot, the results are roughly identical equivalent to µg/square foot.

Table 2: Concrete/Asphalt Wipe Sample Analytical Results

Sample I.D. Lead by EPA Method 6020A Units

Dust Wipe Sampling Event 01/02/2019

LW-1 15 µg/Wipe

LW-2 31 µg/Wipe

LW-3 43 µg/Wipe

Dust Wipe Sampling Event 01/11/2019

LW-1.2 690 µg/Wipe

LW-2.2 1,100 µg/Wipe

LW-3.2 640 µg/Wipe

VDEQ does not have published screening levels for lead concentrations for concrete/asphalt exterior ground surfaces. Subsequently, wipe samples collected prior to demolition of the Salt Dome Structure were compared to those collected after demolition of the Salt Dome Structure to identify whether the lead concentration levels detected on the concrete/asphalt increased


after demolition of the Salt Dome Structure. The post demolition wipe sample results indicated an increase in lead concentrations when compared to the pre demolition samples.

3.3.3 Toxicity Characteristic Leaching Procedure (TCLP) Lead Analysis

Toxicity Characteristic Leaching Procedure (TCLP) lead by EPA Methods SW-846 6020A analysis was performed on the two (2) soil samples, SD-1 and SD-8, that exceeded the VDEQ – VRP Tier III Industrial Soil Screening Level for lead. The TCLP test combines the sample media (in this case, soil) and a leaching solution. After mixing the soil with the leaching solution, the leaching solution is tested for lead. According to the Environmental Protection Agency (EPA) Characteristic Hazardous Waste regulations found in 40 CFR 260-264, the threshold for lead is 5.0 parts per million (ppm) or milligrams per liter (mg/l). The results of the laboratory analyses for the two (2) soil samples are displayed in Table 3.

Table 3: Analytical Results : TCLP Lead Analysis

Sample I.D. TCLP Lead by EPA Method SW-846 6020A and

Prep method 3010A

Units

EPA Regulatory Limit for Lead 5.0 mg/l

SD-1 2.4 mg/l

SD-8 1.1 mg/l

The laboratory analytical results indicated that the two (2) soil samples are below the EPA Regulatory Limit classified under Resource Conservation and Recovery Act (RCRA) Title 40 of the Code of Federal Regulations (CFR) at Part 261 of D004 and D052, and is not classified as characteristic hazardous waste for lead.

4.0 CONCLUSIONS AND RECOMMENDATIONS: Shallow sub-surface soil samples collected prior to demolition of the Salt Dome Structure indicated all lead concentrations were detected below the VDEQ VRP Tier II Residential - and Tier III Industrial Soil Screening levels for lead. Shallow sub-surface soil samples collected after demolition of the Salt Dome Structure indicated an increase of lead concentrations in soil compared to the initial baseline sampling; two (2) soil samples collected from the adjacent and surrounding soils located north of the previous Structure exceeded the VDEQ VRP Tier III Industrial Screening Level for lead in soil. The soil sample identified as SD-1 contained a lead concentration of 850 mg/kg, and the soil sample identified as SD-8 contained a lead concentration of 1,300 mg/kg. The lead contamination appears to be localized to an area immediately adjacent to the former structure to the northeast. The localized lead contamination is recognized as an AOC. The AOC is displayed in Figure 3, AOC Site Diagram included in Appendix A of this report.


F&R recommends that the limited localized lead contaminated soil be removed and disposed of off-site. Once the removal of the soil is complete, the two sample locations in the localized area should be re-sampled to confirm that lead concentration in the soil are below the VDEQ VRP Tier III Industrial screening level for lead. These screening levels were used because the future use of the property is to build a new salt dome structure on-site for industrial purposes. It is believed that the remaining lead contamination is surficial and that excavation to a depth of one to two (1 - 2 ‘) feet in this localized area will suffice to remove residual lead contamination where concentrations exceed the VRP Tier III Screening Level. The excavated soil, based on the TCLP Lead analysis can be disposed if as non-hazardous waste off-site at an authorized disposal facility. Based on the laboratory analytical results of the wipe samples collected prior to and after demolition of the Salt Dome Structure; the laboratory analytical results of the wipe samples collected after the demolition of the structure displayed an increase in lead concentration compared to those collected prior to demolition of structure; the increases were between one to two orders of magnitude. The increase in lead concentrations detected on the concrete/asphalt surrounding the previous Salt Dome Structure could be a result of settled dust and debris from the demolition of the Salt Dome Structure, resulting in a higher concentration of lead observed. The localized lead contamination is recognized as an Area of Concern (AOC). The AOC is displayed in Figure 3, AOC Site Diagram included in Appendix A of this report. Adequate cleaning of the asphalt and/or concrete on the south-southwest side of the previous structure is recommended. Cleaning using High Efficiency Particulate Absolute (HEPA) vacuums and/or dry sweeping compound methods to minimize bulk material for disposal are recommended. Based on the TCLP Lead analysis results, the shallow sub-surface soil located in the AOC can be considered non-hazardous for lead. Waste generated from these cleaning activities should appropriately be disposed in accordance with applicable regulations. 5.0 LIMITATIONS: This report has been prepared for the exclusive use of Arlington County or their agents. This report has been prepared in accordance with generally accepted environmental practices. No other warranty, expressed or implied, is made. Our conclusions and recommendations are based, in part, upon information provided to us by others and conditions readily visible at the site at the time of our site visit, analytical tests and upon current accepted industry standards. We have not verified the completeness or accuracy of the information provided by others. F&R’s scope of services is limited to the services outlined in our original proposal and subsequent email for performing this assessment.


During this study, suspect soil and dust wipe samples were submitted for analysis at an accredited laboratory using industry standard methods and practices. The data provided in this study is only indicative of conditions sampled at the immediate time of the study. Professional services and scientific analyses have been performed with customary principles in the fields of engineering and analytical science. This warranty is in lieu of all other warranties expressed or implied. As with similar surveys of this nature, actual conditions exist only at the precise locations from which samples were collected. Areas inspected were limited to those designated by the scope of services by the Client. Certain inferences are based on the results of this sampling and related testing to form a professional opinion of conditions in areas beyond those from which the samples were collected. Unless otherwise noted, F&R does not claim to have performed exhaustive delineation and/or quantification of identified materials. The work performed in conjunction with this assessment and the data developed is intended as a description of available information at the dates and locations given. This report does not warrant against future operations or conditions nor does it warrant against extant or future conditions of a type or at a location not investigated. Under this scope of services, F&R assumes no responsibility regarding response actions (e.g. O&M Plans, Removal, Treatment Schemes, etc.) initiated as a result of these findings. F&R assumes no liability for the duties and responsibilities of the Client with respect to compliance with appropriate regulations. Compliance with regulations and response actions are the sole responsibility of the Client and should be conducted in accordance with local, state, and/or federal requirements and should be performed by appropriately qualified and licensed/accredited personnel, as warranted. F&R, by virtue of providing the services described in this report, does not assume the responsibility of the person(s) in charge of the site or otherwise undertake responsibility for reporting to any local, state, or federal public agencies any conditions at the site that may present a potential danger to public health, safety or the environment. In areas that require notification of local, state or federal agencies as required by law, it is the client’s responsibility to so notify. The contents of the report should not be construed in any way as a recommendation to purchase, sell, or develop the project site. F&R retains the right to revise this report if new information is later discovered or made available. The report must be presented in its entirety.

Salt Dome Structure 4753 Old Dominion Drive – Shallow Sub-Surface & Analysis F&R Project Number: 72W-0151 January 31, 2019

APPENDIX A

Site Sampling Location Diagrams

Project No.: 72W-0151 Scale: NTS

Date: 24-Jan-19 Drawn: SS

Figure No.: 1 Checked: JN

Froehling & Robertson, Inc.

Engineering • Environmental • Geotechnical22923 Quicksilver Drive , Suite 111 Dulles, Virginia 20166 I USA

T 703.996.0123 I F 703.996.0124

Sampling Event 01/02/2019Salt Dome Structure

4753 Old Dominiom DriveArlington, Virginia

Herndon Fire Station

Metro PCSBundle ofRoses

Former Subaru

Former Robert's Carpet and Oriental Rug Co.

Private Residences

KinderCare

Church of Jesus Christ Dominoes Pizza

The Upholstery Shop

HerndonTown Hall

Copan Restaurant

Iglesia Pentecostal El Calvario

Construction Area

Stairs to First Floor

Beam

2A,B2C

3A

3B

3C

7A 3A

1A2A

1B2B

3B

4A

5A

6A

6B

8A

8B

9A

10A

10B

11A

12A, 12B

13A

15A

16A, 17A18A

19A

20A 20B

22A

22B

30A,31A

30B32A

33A

33B

1C3A

7A

5A

4A

2A

1A

5B

6A,B

8A,B

1B

2A/9A

11A/13A1A

14A

6A

2B

3C

5A

18B

8A

Room 1

Room 3

Room 2

19A

17A

15A

4A

16A 12B

18A

14B

16B

12A

3A

4B

3B

3A

2A

5A 4B

1A

4A3B

1B

A

B

C

D

1A 1B

2A

2B

3A/6C3B/9A

4A

4B

5A

5B

6A

6B

8A

9B

10A

10B

1A/2B

1B

3A/4A-B

9A

9B 3B3C

2A

5A

5B

6B

10B

10A8A/8B

7A

7B

6A

1A

2A

2B

1B

3B

4A

4B

5A

5B

6A

6B

7A-C; 8A-B

7B

8A

8B

4C

5C

2C

3A

A

B

C

D

Storefront

StorageRoom

GS-1

GS-4

GS-5

KEY:Yellow Stars: Representative Grab Soil SamplesRed Oval: Excavation PitBlue Quadrangle: Stockpiled Soil from Excavation Pit

SS-1

SS-2

SS-3

SS-4

SS-5

SS-6

SS-7

LW - 3

LW - 2 LW - 1

: Shallow Sub-Surface Soil Sample Locations: Dust Wipe Sample Locations

N






T 703.996.0123 I F 703.996.0124

Sampling Event 01/11/2019Salt Dome Structure

4753 Old Dominion DriveArlington, Virginia



Former Subaru


Private Residences

KinderCare


The Upholstery Shop

HerndonTown Hall

Copan Restaurant


Construction Area


Beam

2A,B2C

3A

3B

3C

7A 3A

1A2A

1B2B

3B

4A

5A

6A

6B

8A

8B

9A

10A

10B

11A

12A, 12B

13A

15A

16A, 17A18A

19A

20A 20B

22A

22B

30A,31A

30B32A

33A

33B

1C3A

7A

5A

4A

2A

1A

5B

6A,B

8A,B

1B

2A/9A

11A/13A1A

14A

6A

2B

3C

5A

18B

8A

Room 1

Room 3

Room 2

19A

17A

15A

4A

16A 12B

18A

14B

16B

12A

3A

4B

3B

3A

2A

5A 4B

1A

4A3B

1B

A

B

C

D

1A 1B

2A

2B

3A/6C3B/9A

4A

4B

5A

5B

6A

6B

8A

9B

10A

10B

1A/2B

1B

3A/4A-B

9A

9B 3B3C

2A

5A

5B

6B

10B

10A8A/8B

7A

7B

6A

1A

2A

2B

1B

3B

4A

4B

5A

5B

6A

6B

7A-C; 8A-B

7B

8A

8B

4C

5C

2C

3A

A

B

C

D

Storefront

StorageRoom

GS-1

GS-4

GS-5


SD-1SD-2

SD-3

SD-4

SD-7

SD-8

SD-5SD-6

SD-9

SD-12 SD-10

SD-11

SD-13

SD-14

SD-15

SD-16

SD-17SD-18

VDEQ VRP Tier III: 800 mg/kgSD-8 Total Lead: 1,300 mg/kg

VDEQ VRP Tier III: 800 mg/kgSD-1 Total Lead: 850 mg/kg

LW 3.2

LW 2.2 LW 1.2

: Sub-Surface Soil Sample Locations : Dust Wipe Sample Location

N






T 703.996.0123 I F 703.996.0124

Area of ConcernSalt Dome Structure

4753 Old Dominiom DriveArlington, Virginia



Former Subaru


Private Residences

KinderCare


The Upholstery Shop

HerndonTown Hall

Copan Restaurant


Construction Area


Beam

2A,B2C

3A

3B

3C

7A 3A

1A2A

1B2B

3B

4A

5A

6A

6B

8A

8B

9A

10A

10B

11A

12A, 12B

13A

15A

16A, 17A18A

19A

20A 20B

22A

22B

30A,31A

30B32A

33A

33B

1C3A

7A

5A

4A

2A

1A

5B

6A,B

8A,B

1B

2A/9A

11A/13A1A

14A

6A

2B

3C

5A

18B

8A

Room 1

Room 3

Room 2

19A

17A

15A

4A

16A 12B

18A

14B

16B

12A

3A

4B

3B

3A

2A

5A 4B

1A

4A3B

1B

A

B

C

D

1A 1B

2A

2B

3A/6C3B/9A

4A

4B

5A

5B

6A

6B

8A

9B

10A

10B

1A/2B

1B

3A/4A-B

9A

9B 3B3C

2A

5A

5B

6B

10B

10A8A/8B

7A

7B

6A

1A

2A

2B

1B

3B

4A

4B

5A

5B

6A

6B

7A-C; 8A-B

7B

8A

8B

4C

5C

2C

3A

A

B

C

D

Storefront

StorageRoom

GS-1

GS-4

GS-5


Area of Concern

N

Area of Concern


APPENDIX B

Site Photographs

Client:Project:Location:F&R Project No:Source:

SITE PHOTOGRAPHSArlington CountySalt Dome Structure – Lead in Soil4753 Old Dominion Drive72W-0151F&R Site Visit - 02 January 2019

Photo #1: View of Salt Dome Structure before demolition activities.

Photo #2: View of Salt Dome Structure before demolition activities

FROEHLING & ROBERTSON, INC.

ENGINEERING ENVIRONMENTAL GEOTECHNICAL22923 Quicksilver Drive #111Dulles, Virginia 20166 I USA

T 703.996.0123 I F 703.996.0124



Photo #3: View of the former location of the Salt Dome Structure to the north.

Photo #4: View of the former location of the Salt Dome Structure to the east.



T 703.996.0123 I F 703.996.0124



Photo #5: View of former Salt Dome Structure to the south and a pileof miscellaneous debris in middle of former structure.

Photo #6: View of former Salt Dome Structure to the east towards the bounding roadway, 25th Road North.



T 703.996.0123 I F 703.996.0124



Photo #7: View to the north of the east surrounding of the former Salt Dome Structure .



T 703.996.0123 I F 703.996.0124

Photo #8: View to the west of the former Salt Dome Structure.



Photo #9: View of the east surrounding area of the former Salt Dome Structure.



T 703.996.0123 I F 703.996.0124

Photo #10: View to the west of the former Salt Dome Structure.



Photo #11: View of the bounding roadway, 25th Road North, to the south.



T 703.996.0123 I F 703.996.0124

Photo #12: View of the bounding roadway, 25th Road North, to the north.



Photo #13: View of Residential Structures that are bounded by the roadway 25th Road North.



T 703.996.0123 I F 703.996.0124


APPENDIX C

Laboratory Certificates of Analysis Chain of Custody Documentation

Section 1

Sub-Surface Soil Samples

Certificate of Analysis No.: 19010312

Froehling & Robertson, Inc. - Dulles/Sterling

Project Manager: Stephanie SantiagoProject Name : Arlington County

January 10, 2019

6630 Baltimore National PikeBaltimore, MD 21228

Phone: (410) 747-8770Fax: (410) 788-8723

Analytical Report for

Project ID : 72W-0151Project Location: 4753 Old Dominion Dr.

Phase Separation Science, Inc.

Page 1 of 10 Version 1.000

OFFICES:6630 BALTIMORE NATIONAL PIKEROUTE 40 WESTBALTIMORE, MD 21228410-747-8770800-932-9047FAX 410-788-8723

PHASESEPARATION

SCIENCE,INC.

Stephanie Santiago Froehling & Robertson, Inc. - Dulles/Sterling22923 Quicksilver Dr., Ste. 111 Dulles, VA 20166 Reference: PSS Work Order(s) No: 19010312 Project Name: Arlington County Project Location: 4753 Old Dominion Dr. Project ID.: 72W-0151

Dear Stephanie Santiago :

This report includes the analytical results from the analyses performed on the samples received under the projectname referenced above and identified with the Phase Separation Science (PSS) Work Order(s) numbered19010312.

All work reported herein has been performed in accordance with current NELAP standards, referencedmethodologies, PSS Standard Operating Procedures and the PSS Quality Assurance Manual unless otherwisenoted in the Case Narrative Summary. PSS is limited in liability to the actual cost of the sample analysis done.

PSS reserves the right to return any unused samples, extracts or related solutions. Otherwise, the samples arescheduled for disposal, without any further notice, on February 7, 2019, with the exception of air canisters whichare cleaned immediately following analysis. This includes any samples that were received with a request to beheld but lacked a specific hold period. It is your responsibility to provide a written request defining a specificdisposal date if additional storage is required. Upon receipt , the request will be acknowledged by PSS, thusextending the storage period.

This report shall not be reproduced except in full, without the written approval of an authorized PSSrepresentative. A copy of this report will be retained by PSS for at least 5 years, after which time it will bedisposed of without further notice, unless prior arrangements have been made.

We thank you for selecting Phase Separation Science, Inc. to serve your analytical needs. If you have anyquestions concerning this report, do not hesitate to contact us at 410-747-8770 or [email protected].

Sincerely,

January 10, 2019


Sample SummaryClient Name: Froehling & Robertson, Inc. - Dulles/Sterling

Project Name: Arlington County

Sample IdSS-1SS-2SS-3SS-4SS-5SS-6SS-7

01/02/19 11:0001/02/19 11:4501/02/19 12:1501/02/19 12:3001/02/19 13:0001/02/19 13:3001/02/19 13:45

Date/Time Collected Lab Sample Id19010312-00119010312-00219010312-00319010312-00419010312-00519010312-00619010312-007

SOILSOILSOILSOILSOILSOILSOIL

Matrix

A target analyte or common laboratory contaminant was identified in the method blank. Its presence indicates possible field or laboratory contamination. Results Pending Final Confirmation. The data exceeds the upper calibration limit; therefore, the concentration is reported as estimated. The result exceeds the regulatory level for Toxicity Characteristic (TCLP) as cited in 40 CFR 261.24 Table 1. The target analyte was positively identified below the reporting limit but greater than the MDL. This is the Laboratory Method Detection Limit which is equivalent to the Limit of Detection (LOD). The LOD is an estimate of the minimum amount of a substance that an analytical process can reliably detect. This value will remain constant across multiple similar instrumentation and among different analysts. An LOD is analyte and matrix specific. Not Detected at or above the reporting limit. PSS Reporting Limit. Not detected.

Please reference the Chain of Custody and Sample Receipt Checklist for specific container counts and preservatives. Any sampleconditions not in compliance with sample acceptance criteria are described in Case Narrative Summary.

Notes: 1. The presence of a common laboratory contaminant such as methylene chloride may be considered a possible laboratory artifact. Where observed, appropriate consideration of data should be taken. 2. Unless otherwise noted in the case narrative, results are reported on a dry weight basis with the exception of pH, flashpoint, moisture, and paint filter test. 3. Drinking water samples collected for the purpose of compliance with SDWA may not be suitable for their intended use unless collected by a certified sampler [COMAR 26.08.05.07.C.2]. 4. The analyses of 1,2-dibromo-3-chloropropane (DBCP) and 1,2-dibromoethane (EDB) by EPA 524.2 and calcium, magnesium, sodium and iron by EPA 200.8 are not currently promulgated for use in testing to meet the Safe Drinking Water Act and as such cannot be used for compliance purposes. The listings of the current promulgated methods for testing in compliance with the Safe Drinking Water Act can be found in the 40 CFR part 141.1, for the primary drinking water contaminates, and part 141.3, for the secondary drinking water contaminates. 5. Sample prepared under EPA 3550C with concentrations greater than 20 mg/Kg should employ the microtip extraction procedure if required to meet data quality objectives. 6. The analysis of acrolein by EPA 624 must be analyzed within three days of sampling unless pH is adjusted to 4-5 units [40 CFR part 136.3(e)]. 7. Method 180.1, The Determination of Turbidity by Nephelometry, recommends samples over 40 NTU be diluted until the turbidity falls below 40 units. Routine samples over 40 NTU may not be diluted as long as the data quality objectives are not affected. 8. Alkalinity results analyzed by EPA 310.2 that are reported by dilution are estimated and are not in compliance with method requirements.

Project ID: 72W-0151

19010312Work Order Number(s):

The following samples were received under chain of custody by Phase Separation Science (PSS) on 01/03/2019 at 11:05 am

Certifications: NELAP Certifications: PA 68-03330, VA 460156 State Certifications: MD 179, WV 303 Regulated Soil Permit: P330-12-00268 NSWC USCG Accepted Laboratory LDBE MWAA LD1997-0041-2015

B C E Fail J MDL

ND RL U

Standard Flags/Abbreviations:


No: 19010312Froehling & Robertson, Inc. - Dulles/Sterling, Dulles, VA


January 10, 2019

CERTIFICATE OF ANALYSIS

PHASESEPARATION

SCIENCE,INC.


Project Name: Arlington CountyProject Location: 4753 Old Dominion Dr.

01/03/2019 11:05

01/03/2019 11:05

01/03/2019 11:05

01/03/2019 11:05

01/03/2019 11:05

01/03/2019 11:05

82

79

79

82

81

81

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

01/02/2019 11:00

01/02/2019 11:45

01/02/2019 12:15

01/02/2019 12:30

01/02/2019 13:00

01/02/2019 13:30

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

19010312-001

19010312-002

19010312-003

19010312-004

19010312-005

19010312-006

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

SOIL

SOIL

SOIL

SOIL

SOIL

SOIL

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

SS-1

SS-2

SS-3

SS-4

SS-5

SS-6

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

01/04/19 19:17

01/10/19 15:31

01/04/19 19:26

01/04/19 19:31

01/04/19 19:36

01/04/19 19:40

3050B

3050B

3050B

3050B

3050B

3050B

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

01/04/19

01/04/19

01/04/19

01/04/19

01/04/19

01/04/19

Lead

Lead

Lead

Lead

Lead

Lead

Result

Result

Result

Result

Result

Result

2.4

23

2.6

2.1

2.3

2.9

Flag

Flag

Flag

Flag

Flag

Flag

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

Units

Units

Units

Units

Units

Units

1

10

1

1

1

1

150

610

430

12

93

15

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

1051

1051

1051

1051

1051

1051

Analyst

Analyst

Analyst

Analyst

Analyst

Analyst

Prepared

Prepared

Prepared

Prepared

Prepared

Prepared

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Dil

Dil

Dil

Dil

Dil

Dil

RL

RL

RL

RL

RL

RL




January 10, 2019


PHASESEPARATION

SCIENCE,INC.


Project Name: Arlington CountyProject Location: 4753 Old Dominion Dr.

01/03/2019 11:05 81Date/Time Received: % Solids:01/02/2019 13:45Date/Time Sampled: 19010312-007PSS Sample ID:

SOILMatrix: SS-7 Sample ID:

Total Lead Analytical Method:

01/04/19 19:45

3050BPreparation Method:

01/04/19Lead

Result

2.1

Flag

mg/kg

Units

119

SW-846 6020 A

1051

AnalystPrepared Analyzed

DilRL


Case Narrative Summary

19010312Work Order Number(s):72W-0151Project ID:


Client Name: Froehling & Robertson, Inc. - Dulles/Sterling

Turnaround time changed to 5 days, per client.

Per client, container IDs are according to labels and not container lids. Client updated sample IDs to SS-1through SS-7.

Sample Receipt:

General Comments:

NELAP accreditation was held for all analyses performed unless noted below. See www.phaseonline.comfor complete PSS scope of accreditation.

Any holding time exceedances, deviations from the method specifications, regulatory requirements or variations to theprocedures outlined in the PSS Quality Assurance Manual are outlined below.

The analyses of chlorine, pH, dissolved oxygen, temperature and sulfite for drinking water and non-potable samplestested for compliance have a maximum holding time of 15 minutes. As such, all laboratory analyses for these analytesexceed holding times.

Matrix spike and matrix spike duplicate analyses may not be performed due to insufficient sample quantity. In theseinstances, a laboratory control sample and laboratory control sample duplicate are analyzed unless otherwise noted orspecified in the method.


Analytical Data Package Information Summary

Arlington CountyProject Name:Froehling & Robertson, Inc. - Dulles/Sterling,

Stephanie SantiagoProject Manager:

Report Prepared For: 19010312Work Order(s):

SM2540G

SW-846 6020 A

Method

SS-1SS-2SS-3SS-4SS-5SS-6SS-7160260-1-BLKArea 5 Composite D

SS-1SS-3SS-4SS-5SS-6SS-774911-1-BKS74911-1-BLKDredge Sample 1 SDredge Sample 1 SDSS-2

Client Sample Id

19010312-00119010312-00219010312-00319010312-00419010312-00519010312-00619010312-007160260-1-BLK19010217-001 D

19010312-00119010312-00319010312-00419010312-00519010312-00619010312-00774911-1-BKS74911-1-BLK19010214-001 S19010214-001 SD19010312-002

Lab Sample Id

SSSSSSSSS

SSSSSSSSSSS

Mtx

160260160260160260160260160260160260160260160260160260

7491174911749117491174911749117491174911749117491174911

Prep Batch

160260160260160260160260160260160260160260160260160260

160324160324160324160324160324160324160324160324160324160324160471

Analytical Batch

01/02/201901/02/201901/02/201901/02/201901/02/201901/02/201901/02/2019

--------01/02/2019

01/02/201901/02/201901/02/201901/02/201901/02/201901/02/2019

----------------

12/27/201812/27/201801/02/2019

Sampled

01/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:37

01/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:2401/04/2019 10:24

Prepared

01/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:3701/03/2019 13:37

01/04/2019 19:1701/04/2019 19:2601/04/2019 19:3101/04/2019 19:3601/04/2019 19:4001/04/2019 19:4501/04/2019 17:4601/04/2019 17:3601/04/2019 18:1301/04/2019 18:1801/10/2019 15:31

Analyzed

106910691069106910691069106910691069

10511051105110511051105110511051105110511051

Analyst

InitialInitialInitialInitialInitialInitialInitialBLKMD

InitialInitialInitialInitialInitialInitialBKSBLKMSMSDReanalysis

Analysis Type


QC Summary 19010312

Froehling & Robertson, Inc. - Dulles/SterlingArlington County

PHASE SEPARATION SCIENCE, INC.

74911-1-BLKMB Sample Id:SolidMatrix:

SW-846 6020 AAnalytical Method: SW3050BPrep Method: 01/04/19Date Prep:

Lead

Parameter Flag

160324Seq Number:

01/04/19 17:46

Analysis Date

Limits

80-120

LCS %Rec

9813.42

Spike Amount

13.71

MB Result <1.714

74911-1-BKSLCS Sample Id:

mg/kg

UnitsLCSResult

F = RPD exceeded the laboratory control limitsX = Recovery of MS, MSD or both outside of QC CriteriaH= Recovery of BS,BSD or both exceeded the laboratory control limitsL = Recovery of BS,BSD or both below the laboratory control limits


SAMPLE CHAIN OF CUSTODY/AGREEMENT FORM

PHASE SEPARATION SCIENCE, INC.www.phaseonline.com

email : [email protected]

'*"a,=rr, Fg;t.turrrt., \ (,*tur, *orrtce loc. br.ruue !,,.r4 PSS Work Order #: i r4olo3 l2xpRoJrcr MGR:ktrAnpr€ .hrrfrrtthnorue No.:( ?o1) q q6 - o \? 3 SW=Surface Wtr DW=Drinkinq Wtr

EMA|L:SSqpl r ftcro@ FAu$(.1.2*1 FAX No.: 3O9 q'qc 'o \aq

xpRoJEcrNAME: AC.urtrrtr'ion, (o.r.prt pRoJEcr-+lw-ql5:t

strELocATtor,l' {153 oLb Nl^tNroil 0( p.o.No.:

sAMPLER(s): \(V ut t'1

xsRMPLe rDENTrFrcATroN

t/1/rqt I tltqv 7ltq

SS -tr to r/?-/ Iq

It2"/ rq(tr2 ltq

ss-tt{ ll2 , tq

' xRequestedTAT(OneTATperCOC)

! s-o"y Es-oay [f z-oay

E Next Day !Emergency E otner

Date

\- I -11

Data Deliverables Required:COA QC SUMM CLP LIKE OTHER

trtrtroa a!s:s - Anc.l.1z-cSpecial lnstructions: Fo\l'o-i^j tt't (9(^d o"n cut3s;s - Ancrl"5z

J o4 {ue hi:!.st b1& '<t^'lll^S; Qt lce ?'Ua1'cc^l| itr qo,* h<--<. c*t ,1*r5L'r-r

STATE RESULTS REPORTED TO:MD DE PA VA WVtrtrtrtrtr

DW COMPLIANCE?YES E

more Na 21228. (410) 747-8770 . ax (410)

th€ S€rvica Brochurs or Pss-provid€d quolalion including any and all atb.n€ys or olh€r r€asonabls b€s if coll€ction bscomas n€cossary. *=REOUIBED

Relinquished By: (4)

coN

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N

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S

/l_c/\a

/,/

'f/,,lo.\,P/


Sample Receipt Checklist

Phase Separation Science, Inc

19010312Work Order #

01/03/2019 11:05:00 AMDate Received

Trans Time ExpressDelivered By

Froehling & Robertson, Inc. - Dulles/SClient Name

72W-0151Project Number

Arlington CountyProject Name

Thomas WingateReceived By

Not ApplicableTracking No

Shipping Container(s)No. of Coolers

IceTemp (deg C)Temp Blank Present

Total No. of Samples ReceivedPreservation

1

5.6No

7

For any improper preservation conditions, list sample ID, preservative added (reagent ID number) below as well asdocumentation of any client notification as well as client instructions. Samples for pH, chlorine and dissolved oxygenshould be analyzed as soon as possible, preferably in the field at the time of sampling. Samples which require thermalpreservation shall be considered acceptable when received at a temperature above freezing to 6°C. Samples that arehand delivered on the day that they are collected may not meet these criteria but shall be considered acceptable if there isevidence that the chilling process has begun such as arrival on ice.

Comments: (Any "No" response must be detailed in the comments section below.)

Per client, container IDs are according to labels and not container lids. Client updated sample IDs to SS-1through SS-7.

Samples Inspected/Checklist Completed By: Date:

PM Review and Approval: Date:

Logged In By Thomas Wingate

Present

Disposal Date 02/07/2019

Thomas Wingate

Lynn Jackson

01/03/2019

01/03/2019

Total MetalsDissolved Metals, filtered within 15 minutes of collectionOrthophosphorus, filtered within 15 minutes of collectionCyanidesSulfideTOC, DOC (field filtered), COD, PhenolsTOX, TKN, NH3, Total PhosVOC, BTEX (VOA Vials Rcvd Preserved)Do VOA vials have zero headspace?624 VOC (Rcvd at least one unpreserved VOA vial)524 VOC (Rcvd with trip blanks)

(pH<2)(pH<2)

(pH>12)(pH>9)(pH<2)(pH<2)(pH<2)

(pH<2)

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

Appropriate for Specified Analysis?Intact?Labeled and Labels Legible?

YesYesYes

Sample Container

COC agrees with sample labels?Chain of Custody

YesYes

DocumentationNot ProvidedSampler Name

Custody Seal(s) Intact?

Seal(s) Signed / Dated

Total No. of Containers Received 21

Not Applicable

Not Applicable

N/A

Custody Seal(s) Intact?Seal(s) Signed / Dated?

N/AN/A




Project Manager: Stephanie SantiagoProject Name : Arlington County - Lead

January 18, 2019


Phone: (410) 747-8770Fax: (410) 788-8723


Project ID : 72W0151Project Location: Arlington, VA




PHASESEPARATION

SCIENCE,INC.

Stephanie Santiago Froehling & Robertson, Inc. - Dulles/Sterling22923 Quicksilver Dr., Ste. 111 Dulles, VA 20166 Reference: PSS Work Order(s) No: 19011137 Project Name: Arlington County - Lead Project Location: Arlington, VA Project ID.: 72W0151




PSS reserves the right to return any unused samples, extracts or related solutions. Otherwise, the samples arescheduled for disposal, without any further notice, on February 15, 2019, with the exception of air canisterswhich are cleaned immediately following analysis. This includes any samples that were received with a requestto be held but lacked a specific hold period. It is your responsibility to provide a written request defining aspecific disposal date if additional storage is required. Upon receipt , the request will be acknowledged by PSS,thus extending the storage period.



Sincerely,

January 18, 2019

Dan PrucnalLaboratory Manager



Project Name: Arlington County - Lead

Sample IdSD-1SD-2SD-3SD-4SD-5SD-6SD-7SD-8SD-9SD-10SD-11SD-12SD-13SD-14SD-15SD-16SD-17SD-18

01/11/19 10:0001/11/19 10:1501/11/19 10:3001/11/19 10:4501/11/19 10:5501/11/19 11:0501/11/19 11:1501/11/19 11:3001/11/19 11:4501/11/19 11:5501/11/19 12:0001/11/19 12:0601/11/19 12:1001/11/19 12:2001/11/19 12:3001/11/19 12:5001/11/19 13:0001/11/19 13:30

Date/Time Collected Lab Sample Id19011137-00119011137-00219011137-00319011137-00419011137-00519011137-00619011137-00719011137-00819011137-00919011137-01019011137-01119011137-01219011137-01319011137-01419011137-01519011137-01619011137-01719011137-018

SOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOILSOIL

Matrix



Project ID: 72W0151


The following samples were received under chain of custody by Phase Separation Science (PSS) on 01/11/2019 at 03:55 pm







B C E Fail J MDL

ND RL U




Project ID: 72W0151

January 18, 2019


PHASESEPARATION

SCIENCE,INC.


Project Name: Arlington County - LeadProject Location: Arlington, VA

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

81

80

89

83

84

94

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

01/11/2019 10:00

01/11/2019 10:15

01/11/2019 10:30

01/11/2019 10:45

01/11/2019 10:55

01/11/2019 11:05

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

19011137-001

19011137-002

19011137-003

19011137-004

19011137-005

19011137-006

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

SOIL

SOIL

SOIL

SOIL

SOIL

SOIL

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

SD-1

SD-2

SD-3

SD-4

SD-5

SD-6

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

01/16/19 20:02

01/16/19 20:16

01/16/19 20:21

01/16/19 20:25

01/16/19 20:30

01/16/19 20:53

3050B

3050B

3050B

3050B

3050B

3050B

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

01/15/19

01/15/19

01/15/19

01/15/19

01/15/19

01/15/19

Lead

Lead

Lead

Lead

Lead

Lead

Result

Result

Result

Result

Result

Result

5.3

0.44

0.42

0.47

0.49

0.47

Flag

Flag

Flag

Flag

Flag

Flag

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

Units

Units

Units

Units

Units

Units

10

1

1

1

1

1

850

140

170

270

290

27

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

1051

1051

1051

1051

1051

1051

Analyst

Analyst

Analyst

Analyst

Analyst

Analyst

Prepared

Prepared

Prepared

Prepared

Prepared

Prepared

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Dil

Dil

Dil

Dil

Dil

Dil

RL

RL

RL

RL

RL

RL



Project ID: 72W0151

January 18, 2019


PHASESEPARATION

SCIENCE,INC.



01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

77

75

95

82

76

81

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

01/11/2019 11:15

01/11/2019 11:30

01/11/2019 11:45

01/11/2019 11:55

01/11/2019 12:00

01/11/2019 12:06

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

19011137-007

19011137-008

19011137-009

19011137-010

19011137-011

19011137-012

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

SOIL

SOIL

SOIL

SOIL

SOIL

SOIL

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

SD-7

SD-8

SD-9

SD-10

SD-11

SD-12

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

01/16/19 20:57

01/16/19 20:07

01/16/19 21:06

01/16/19 21:11

01/16/19 21:16

01/16/19 21:20

3050B

3050B

3050B

3050B

3050B

3050B

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

01/15/19

01/15/19

01/15/19

01/15/19

01/15/19

01/15/19

Lead

Lead

Lead

Lead

Lead

Lead

Result

Result

Result

Result

Result

Result

0.43

6.0

0.38

0.48

0.54

0.50

Flag

Flag

Flag

Flag

Flag

Flag

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

Units

Units

Units

Units

Units

Units

1

10

1

1

1

1

44

1,300

61

130

150

230

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

1051

1051

1051

1051

1051

1051

Analyst

Analyst

Analyst

Analyst

Analyst

Analyst

Prepared

Prepared

Prepared

Prepared

Prepared

Prepared

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Dil

Dil

Dil

Dil

Dil

Dil

RL

RL

RL

RL

RL

RL



Project ID: 72W0151

January 18, 2019


PHASESEPARATION

SCIENCE,INC.



01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

75

75

76

83

74

79

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

Date/Time Received:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

% Solids:

01/11/2019 12:10

01/11/2019 12:20

01/11/2019 12:30

01/11/2019 12:50

01/11/2019 13:00

01/11/2019 13:30

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

19011137-013

19011137-014

19011137-015

19011137-016

19011137-017

19011137-018

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

SOIL

SOIL

SOIL

SOIL

SOIL

SOIL

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

Matrix:

SD-13

SD-14

SD-15

SD-16

SD-17

SD-18

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Sample ID:

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Total Lead

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

Analytical Method:

01/16/19 21:25

01/16/19 21:30

01/16/19 21:34

01/16/19 21:57

01/16/19 22:02

01/16/19 22:06

3050B

3050B

3050B

3050B

3050B

3050B

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

Preparation Method:

01/15/19

01/15/19

01/15/19

01/15/19

01/15/19

01/15/19

Lead

Lead

Lead

Lead

Lead

Lead

Result

Result

Result

Result

Result

Result

0.44

0.53

0.59

0.53

0.48

0.47

Flag

Flag

Flag

Flag

Flag

Flag

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

mg/kg

Units

Units

Units

Units

Units

Units

1

1

1

1

1

1

150

43

35

20

14

15

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

1051

1051

1051

1051

1051

1051

Analyst

Analyst

Analyst

Analyst

Analyst

Analyst

Prepared

Prepared

Prepared

Prepared

Prepared

Prepared

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Analyzed

Dil

Dil

Dil

Dil

Dil

Dil

RL

RL

RL

RL

RL

RL



19011137Work Order Number(s):72W0151Project ID:



Per client, sampling time for 007 is 1115.

All sample receipt conditions were acceptable.

Sample Receipt:

General Comments:







Arlington County - LeadProject Name:Froehling & Robertson, Inc. - Dulles/Sterling,



SM2540G

SW-846 6020 A

Method

SD-1SD-2SD-3SD-4SD-5SD-6SD-7SD-8SD-9SD-10SD-11SD-12SD-13SD-14SD-15SD-16SD-17SD-18160592-1-BLK13387-Lot 31B - 4' D13387-Lot 36B - 3' DSD-8 DSD-18 DGTA-16 (0-5) DGTA-18 (10-15) DGTA-21 (5-10) DEntrance - West DC-4 D

75066-1-BKS

Client Sample Id

19011137-00119011137-00219011137-00319011137-00419011137-00519011137-00619011137-00719011137-00819011137-00919011137-01019011137-01119011137-01219011137-01319011137-01419011137-01519011137-01619011137-01719011137-018160592-1-BLK19011013-060 D19011013-070 D19011137-008 D19011137-018 D19011503-001 D19011503-011 D19011503-021 D19011507-001 D19011508-008 D

75066-1-BKS

Lab Sample Id

SSSSSSSSSSSSSSSSSSSSSSSSSSSS

S

Mtx

160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592

75066

Prep Batch

160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592160592

160646

Analytical Batch

01/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/2019

--------01/08/201901/08/201901/11/201901/11/201901/11/201901/14/201901/14/201901/11/201901/15/2019

--------

Sampled

01/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:58

01/15/2019 10:39

Prepared

01/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:5801/15/2019 14:58

01/15/2019 20:43

Analyzed

1061106110611061106110611061106110611061106110611061106110611061106110611061106110611061106110611061106110611061

1051

Analyst

InitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialInitialBLKMDMDMDMDMDMDMDMDMD

BKS

Analysis Type






SW-846 6020 A

Method

75066-1-BLKGTA-SP-WC1 SGTA-SP-WC1 SDSD-2SD-3SD-4SD-5SD-6SD-7SD-9SD-10SD-11SD-12SD-13SD-14SD-15SD-16SD-17SD-18SD-1SD-8

Client Sample Id

75066-1-BLK19011114-001 S19011114-001 SD19011137-00219011137-00319011137-00419011137-00519011137-00619011137-00719011137-00919011137-01019011137-01119011137-01219011137-01319011137-01419011137-01519011137-01619011137-01719011137-01819011137-00119011137-008

Lab Sample Id

SSSSSSSSSSSSSSSSSSSSS

Mtx

750667506675066750667506675066750667506675066750667506675066750667506675066750667506675066750667506675066

Prep Batch

160646160646160646160688160688160688160688160688160688160688160688160688160688160688160688160688160688160688160688160688160688

Analytical Batch

--------01/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/201901/11/2019

Sampled

01/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:3901/15/2019 10:39

Prepared

01/15/2019 20:3901/15/2019 20:5201/15/2019 20:5701/16/2019 20:1601/16/2019 20:2101/16/2019 20:2501/16/2019 20:3001/16/2019 20:5301/16/2019 20:5701/16/2019 21:0601/16/2019 21:1101/16/2019 21:1601/16/2019 21:2001/16/2019 21:2501/16/2019 21:3001/16/2019 21:3401/16/2019 21:5701/16/2019 22:0201/16/2019 22:0601/16/2019 20:0201/16/2019 20:07

Analyzed

105110511051105110511051105110511051105110511051105110511051105110511051105110511051

Analyst

BLKMSMSDReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysisReanalysis

Analysis Type


QC Summary 19011137

Froehling & Robertson, Inc. - Dulles/SterlingArlington County - Lead


75066-1-BLK

19011137-008

19011137-018

MB Sample Id:

Parent Sample Id:

Parent Sample Id:

Solid

Soil

Soil

Matrix:

Matrix:

Matrix:

SW-846 6020 A

SM2540G

SM2540G

Analytical Method:

Analytical Method:

Analytical Method:

SW3050BPrep Method: 01/15/19Date Prep:

Lead

Percent Moisture

Percent Moisture

Parameter

Parameter

Parameter

%RPD

%RPD

Flag

Flag

Flag

20

20

RPDLimit

RPDLimit

0

5

160646

160592

160592

Seq Number:

Seq Number:

Seq Number:

01/15/19 20:43

01/15/19 14:58

01/15/19 14:58

Analysis Date

Analysis Date

Analysis Date

Limits

80-120

LCS %Rec

9916.71

25.00

20.00

Spike Amount

16.90

MB Result

Parent Result

Parent Result

<2.112

25.00

21.00

75066-1-BKS

19011137-008 D

19011137-018 D

LCS Sample Id:

MD Sample Id:

MD Sample Id:

mg/kg

%

%

Units

Units

Units

LCSResult

MDResult

MDResult




PHASE SEPARATION SCIENCE, INC. ict o L /3awww.phaseonline.com

email : info @ phaseonline.com

*pRoJecr ro", ,llpn[frni[ *pHorue *o,r l|/4 filtL' MtL SW=Surlace Wtr Mr GW=Ground Wtr WW=Waste Wtr

FAX NO.: ( )

SAMPLER(s): ,h|lfn t,lllltl* DW cERr No.:

xsRupLr rDENTrFrcATroN

' 1 *Requested TAT (OneTAT per COC)

En s-oay Es-oay E z-oayNext Dav I lEmeroencv I I other

Relinquished By: (21..

G,,@Data Deliverables Bequired :

coA Qc SUMM CLP LIKE OTHER

trtrtrRelinquished By: (3)

-mdbi

DW COMPLIANCE?YES E

EDD FORMATTYPE STATE RESULTS REPORTED TO:MD DE PA VA WVtrtrtrtru

6630 Baltimore National Pike . 21228 . (410) 747-8770 . (800) 932-9047 . Fax (41 o) 788-8723

lh€ Sorvics Brochure or Pss-prcvided quolation including arry and all atbrnsyts or ohsr rsaEonabla b€6 if collection becomss n€cessary ,* = BEOUIRED

CoN

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PHASE SEPARATION SCIENCE, INC. 14 tt I 1,3'l

SAMPLE CHAIN OF CUSTODY/AGREEMENT FORMwww.phaseonline.com

email : info@ phaseonline.com

u,ut PSSWorkO,o",*ffi | ,oe. L o, -C

xpRoJrcr r"' Ihfltnnit *pHorue *o,ffi- {lfb'ffi:lLMAINX UOOCS:

SW=SurfaceWtr DW=DrinkinOWtr GW=GroundMr WW=WasteWtr 0=0il S=Soil L=Liquid SOL=Solid A=Air Wl=Wipe

.,o,., if66htr(tfr0Ytdh.ttn FAX No: ( )

NO

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# of Coolers: 2Custody Seal: S(.!

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\,57Received By: Data Deliverables Required :

coA QC SUMM CLP LIKE OTHER

trtrtrlce Presentpfj ,"ro,l.

Ko-?)'LShipping Carrieri-fJp

Relinquished By: (3) Date Time Received By:

16trlryiffit^ntM,)f,hffii#i'ffitf iylTffi ,Relinquished By: (4) Date Tme Received By: DW COMPLIANCE?

ves !EDD FORMATTYPE STATE RESULTS BEPORTED TO:

MD DE PA VA WV OTHERtrtrtrtrtr6630 Baltimore National Pike . Route 40 West . Baltimore, Maryland 21228. (410) 747-8770 . (800) 932-9047 . Fax (41 O) 788-8723

the Service Brochure or Pss-provided quotalion including any and all attorn€y's or other roasonable fees if collection becomes necassary ,* = FEQUIBEDPage 13 of 14 Version 1.000




01/11/2019 03:55:00 PMDate Received



72W0151Project Number

Arlington County - LeadProject Name






1

3.2No

18






Present


Thomas Wingate

Lynn Jackson

01/11/2019

01/14/2019


(pH<2)(pH<2)

(pH>12)(pH>9)(pH<2)(pH<2)(pH<2)

(pH<2)



YesYesYes

Sample Container


YesYes

DocumentationStephanie SantiagoSampler Name

MD DW Cert. No.




Not Applicable

Not Applicable

N/A


N/AN/A



APPENDIX C


Section 2

Dust Wipe Samples



Project Manager: Stephanie SantiagoProject Name : Wipe Samples

January 10, 2019


Phone: (410) 747-8770Fax: (410) 788-8723





PHASESEPARATION

SCIENCE,INC.

Stephanie Santiago Froehling & Robertson, Inc. - Dulles/Sterling22923 Quicksilver Dr., Ste. 111 Dulles, VA 20166 Reference: PSS Work Order(s) No: 19010307 Project Name: Wipe Samples




PSS reserves the right to return any unused samples, extracts or related solutions. Otherwise, the samples arescheduled for disposal, without any further notice, on February 7, 2019, with the exception of air canisters whichare cleaned immediately following analysis. This includes any samples that were received with a request to beheld but lacked a specific hold period. It is your responsibility to provide a written request defining a specificdisposal date if additional storage is required. Upon receipt , the request will be acknowledged by PSS, thusextending the storage period.



Sincerely,

January 10, 2019




Project Name: Wipe Samples

Sample IdLW-1LW-2LW-3

01/02/19 13:3001/02/19 13:3501/02/19 13:40

Date/Time Collected Lab Sample Id19010307-00119010307-00219010307-003

WIPESWIPESWIPES

Matrix





The following samples were received under chain of custody by Phase Separation Science (PSS) on 01/03/2019 at 11:05 am


B C E Fail J MDL

ND RL U



No: 19010307Froehling & Robertson, Inc. - Dulles/Sterling, Dulles, VAJanuary 10, 2019


PHASESEPARATION

SCIENCE,INC.



01/03/2019 11:05

01/03/2019 11:05

01/03/2019 11:05

Date/Time Received:

Date/Time Received:

Date/Time Received:

01/02/2019 13:30

01/02/2019 13:35

01/02/2019 13:40

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

19010307-001

19010307-002

19010307-003

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

WIPES

WIPES

WIPES

Matrix:

Matrix:

Matrix:

LW-1

LW-2

LW-3

Sample ID:

Sample ID:

Sample ID:

Total Metals

Total Metals

Total Metals

Analytical Method:

Analytical Method:

Analytical Method:

01/04/19 17:32

01/04/19 17:42

01/04/19 17:47

3050B

3050B

3050B

Preparation Method:

Preparation Method:

Preparation Method:

01/04/19

01/04/19

01/04/19

Lead

Lead

Lead

Result

Result

Result

2.5

2.5

2.5

Flag

Flag

Flag

ug/Wp

ug/Wp

ug/Wp

Units

Units

Units

1

1

1

15

31

43

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

1064

1064

1064

Analyst

Analyst

Analyst

Prepared

Prepared

Prepared

Analyzed

Analyzed

Analyzed

Dil

Dil

Dil

RL

RL

RL







Sample Receipt:







Wipe SamplesProject Name:Froehling & Robertson, Inc. - Dulles/Sterling,



SW-846 6020 A

Method

LW-1LW-2LW-374918-1-BKS74918-1-BLK74918-1-BSD

Client Sample Id

19010307-00119010307-00219010307-00374918-1-BKS74918-1-BLK74918-1-BSD

Lab Sample Id

WIWIWIWIWIWI

Mtx

749187491874918749187491874918

Prep Batch

160322160322160322160322160322160322

Analytical Batch

01/02/201901/02/201901/02/2019

------------------------

Sampled

01/04/2019 14:3901/04/2019 14:3901/04/2019 14:3901/04/2019 14:3901/04/2019 14:3901/04/2019 14:39

Prepared

01/04/2019 17:3201/04/2019 17:4201/04/2019 17:4701/04/2019 17:2701/04/2019 16:4501/04/2019 17:52

Analyzed

106410641064106410641064

Analyst

InitialInitialInitialBKSBLKBSD

Analysis Type


QC Summary 19010307

Froehling & Robertson, Inc. - Dulles/SterlingWipe Samples


74918-1-BLKMB Sample Id:WipesMatrix:

SW-846 6020 AAnalytical Method: SW3050BPrep Method: 01/04/19Date Prep:

Lead

Parameter %RPD

F

Flag

25

RPDLimit

161

160322Seq Number:

01/04/19 17:27

Analysis Date

Limits

80-120

LCSD %Rec

107

LCSDResult

21.30

LCS %Rec

1152.291

Spike Amount

2.000

MB Result

<0.2500

74918-1-BKSLCS Sample Id: 74918-1-BSDLCSD Sample Id:

ug/Wp

UnitsLCSResult




SAMPLE CHAIN OF CUSTODY/AGREEMENT FORMwww.phaseonline.com

emai I : info@ phaseonline.com

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xPRoJEcr NAME, pRoJECT No.:

SITE LOCATION: P.O. NO.:

SAMPLER(S): DW CERT NO.:

*sRlrlpLe rDENTrFrcATroN

TAT (OneTAT per COC)S-Day l_13-Day LJ2-oayNext Day l_l Emergency Ll Other

Data Deliverables Required :

eC SUMM CLp L;KE OTHER

trtrtrlce Present: 9,55 t""' tq. o- tq.c

Relinquished By: (4) STATE RESULTS REPORTED TO:MD DE PA VA WVtrtrtrtrtr

National Pike . Route 40 West . Baltimore, Maryland 21228. (410) 747-8770. (800) 932-9047 . Fax (410) 788-8723

th€ S€rvics Brochure oI Pss-provided quolation including any and all aflorney's or olher r€asonabl€ l€€s il collection b€com€s n€cossary. * = REOI/IFED

coN

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01/03/2019 11:05:00 AMDate Received



Wipe SamplesProject Name






1

19.6No

3






Absent


Thomas Wingate

Lynn Jackson

01/03/2019

01/04/2019


(pH<2)(pH<2)

(pH>12)(pH>9)(pH<2)(pH<2)(pH<2)

(pH<2)



YesYesYes

Sample Container


YesYes

DocumentationNot ProvidedSampler Name




Not Applicable

Not Applicable

N/A


N/AN/A




Project Manager: Stephanie SantiagoProject Name : Arlington County

January 18, 2019


Phone: (410) 747-8770Fax: (410) 788-8723






PHASESEPARATION

SCIENCE,INC.

Stephanie Santiago Froehling & Robertson, Inc. - Dulles/Sterling22923 Quicksilver Dr., Ste. 111 Dulles, VA 20166 Reference: PSS Work Order(s) No: 19011135 Project Name: Arlington County Project Location: Arlington, VA Project ID.: 72W0151







Sincerely,

January 18, 2019





Sample IdLW-1.2LW-2.2LW-3.2

01/11/19 13:3001/11/19 13:3301/11/19 13:36

Date/Time Collected Lab Sample Id19011135-00119011135-00219011135-003

WIPESWIPESWIPES

Matrix




Project ID: 72W0151




B C E Fail J MDL

ND RL U




Project ID: 72W0151

January 18, 2019


PHASESEPARATION

SCIENCE,INC.


Project Name: Arlington CountyProject Location: Arlington, VA

01/11/2019 15:55

01/11/2019 15:55

01/11/2019 15:55

Date/Time Received:

Date/Time Received:

Date/Time Received:

01/11/2019 13:30

01/11/2019 13:33

01/11/2019 13:36

Date/Time Sampled:

Date/Time Sampled:

Date/Time Sampled:

19011135-001

19011135-002

19011135-003

PSS Sample ID:

PSS Sample ID:

PSS Sample ID:

WIPES

WIPES

WIPES

Matrix:

Matrix:

Matrix:

LW-1.2

LW-2.2

LW-3.2

Sample ID:

Sample ID:

Sample ID:

Total Lead

Total Lead

Total Lead

Analytical Method:

Analytical Method:

Analytical Method:

01/16/19 17:02

01/16/19 17:07

01/16/19 17:12

3050B

3050B

3050B

Preparation Method:

Preparation Method:

Preparation Method:

01/15/19

01/15/19

01/15/19

Lead

Lead

Lead

Result

Result

Result

25

25

25

Flag

Flag

Flag

ug/Wp

ug/Wp

ug/Wp

Units

Units

Units

10

10

10

690

1,100

640

SW-846 6020 A

SW-846 6020 A

SW-846 6020 A

1064

1064

1064

Analyst

Analyst

Analyst

Prepared

Prepared

Prepared

Analyzed

Analyzed

Analyzed

Dil

Dil

Dil

RL

RL

RL







Sample Receipt:

Analytical:

The concentration of the following analyte(s) in the reference sample was greater than four times the matrixspike concentration : lead

Total Metals



Batch: 160636





Arlington CountyProject Name:Froehling & Robertson, Inc. - Dulles/Sterling,



SW-846 6020 A

Method

75073-1-BKS75073-1-BLKLW-1.2 SLW-1.2 SDLW-1.2LW-2.2LW-3.2

Client Sample Id

75073-1-BKS75073-1-BLK19011135-001 S19011135-001 SD19011135-00119011135-00219011135-003

Lab Sample Id

WIWIWIWIWIWIWI

Mtx

75073750737507375073750737507375073

Prep Batch

160636160636160636160636160709160709160709

Analytical Batch

----------------

01/11/201901/11/201901/11/201901/11/201901/11/2019

Sampled

01/15/2019 14:4801/15/2019 14:4801/15/2019 14:4801/15/2019 14:4801/15/2019 14:4801/15/2019 14:4801/15/2019 14:48

Prepared

01/15/2019 18:2101/15/2019 18:1601/15/2019 18:3101/15/2019 18:3601/16/2019 17:0201/16/2019 17:0701/16/2019 17:12

Analyzed

1064106410641064106410641064

Analyst

BKSBLKReanalysisReanalysisReanalysisReanalysisReanalysis

Analysis Type


QC Summary 19011135

Froehling & Robertson, Inc. - Dulles/SterlingArlington County


75073-1-BLK

19011135-001

MB Sample Id:

Parent Sample Id:

Wipes

Wipes

Matrix:

Matrix:

SW-846 6020 A

SW-846 6020 A

Analytical Method:

Analytical Method:

SW3050B

SW3050B

Prep Method:

Prep Method:

01/15/19

01/15/19

Date Prep:

Date Prep:

Lead

Lead

Parameter

Parameter %RPD

X

Flag

Flag

25

RPDLimit

0

160636

160636

Seq Number:

Seq Number:

01/15/19 18:21

01/15/19 18:31

Analysis Date

Analysis Date

Limits

Limits

80-120

75-125

MSD %Rec

168

MSDResult

689.2

LCS %Rec

MS %Rec

99

156

19.77

686.7

Spike Amount

Spike Amount

20.00

20.00

MB Result

Parent Result

<2.500

655.6

75073-1-BKS

19011135-001 S

LCS Sample Id:

MS Sample Id: 19011135-001 SDMSD Sample Id:

ug/Wp

ug/Wp

Units

Units

LCSResult

MSResult




PHASE SEPARATION SCIENCE, INC.www.phaseonline.com

email : i nfo@ phaseonline.com

pssworkorder#: l? Ol I I Bf*eHorue tto ,1 SW=Surlace Wtr DW=Drinkino Mr GW=Ground Wtr WW=Waste Wtr 0=0il S=Soil L=Liquid S0L=Solid A=Air Wl=

*pRoJecr ruerue: [l/lr trwlh{:wtllv pRoJECr No.:

SITE LOCATION: W I[ rv&'IIIV\ UW PO. NO.:

SAMPLER(S): ,\.\+tlN DW CERT NO.:

*sRvpLE rDENTrFrcATroN

'xRequestedTAT (OneTAT per COC)5-Day Es-ory Ez-oayNext Dav I lEmerqencv Ll Other

Re|inquished ey f-r-,,

dalk\Data Deliverables Required :

COA QC SUMM CLP LIKE OTHERtrtrtrlce Present:

A$+( T"rp:

11,r1"_1[.li

Relinquished By: (3)

EDD FORMATTYPEI STATE RESULTS REPORTEDTO:MD DE PA VA WV OTHERDDtrtrtr-

Time I Received By: DW COMPLIANCE?YES E

more National Pike . Route 40 West . Baltimore, Maryland 21228. (410) 747-8770 . (800) 932-9047 . Fax (410) 788-8723

thsSsrvicoBrochursorPss-providedquotalionincludinganyandallatorn€y'sorotherroasonablefeesifcolleclionbecomssnecessary,*=BEQUIBED

Relinquished By: (4) Date

coN

TAI

N

ER

S









Arlington CountyProject Name






1

18.1No

3






Absent


Thomas Wingate

Lynn Jackson

01/11/2019

01/14/2019


(pH<2)(pH<2)

(pH>12)(pH>9)(pH<2)(pH<2)(pH<2)

(pH<2)



YesYesYes

Sample Container


YesYes


MD DW Cert. No.




Not Applicable

Not Applicable

N/A


N/AN/A



APPENDIX C


Section 3

TCLP Lead Sub-Surface Soil Samples



Project Manager: Stephanie SantiagoProject Name : Arlington County - Lead

January 28, 2019


Phone: (410) 747-8770Fax: (410) 788-8723






PHASESEPARATION

SCIENCE,INC.

Stephanie Santiago Froehling & Robertson, Inc. - Dulles/Sterling22923 Quicksilver Dr., Ste. 111 Dulles, VA 20166 Reference: PSS Work Order(s) No: 19012109 Project Name: Arlington County - Lead Project Location: Arlington, VA Project ID.: 72W0151







Sincerely,

January 28, 2019





Sample IdSD-1SD-8

01/11/19 10:0001/11/19 11:30

Date/Time Collected Lab Sample Id19012109-00119012109-002

SOILSOIL

Matrix




Project ID: 72W0151




B C E Fail J MDL

ND RL U




Project ID: 72W0151

January 28, 2019


PHASESEPARATION

SCIENCE,INC.



01/11/2019 15:55

01/11/2019 15:55

Date/Time Received:

Date/Time Received:

01/11/2019 10:00

01/11/2019 11:30

Date/Time Sampled:

Date/Time Sampled:

19012109-001

19012109-002

PSS Sample ID:

PSS Sample ID:

SOIL

SOIL

Matrix:

Matrix:

SD-1

SD-8

Sample ID:

Sample ID:

TCLP Lead

TCLP Lead

Analytical Method:

Analytical Method:

01/26/19 05:56

01/26/19 06:42

3010A

3010A

Preparation Method:

Preparation Method:

01/25/19

01/25/19

Lead

Lead

Result

Result

0.050

0.050

Flag

Flag

mg/L

mg/L

Units

Units

1

1

2.4

1.1

SW-846 6020 A

SW-846 6020 A

1064

1064

Analyst

Analyst

Prepared

Prepared

Analyzed

Analyzed

Dil

Dil

5

5

TCLP Limit

TCLP Limit

RL

RL






Per client, analyze SD-1 and SD-8 for TCLP lead.


Sample Receipt:

General Comments:










SW-846 6020 A

Method

SD-1SD-875235-1-BKS75235-1-BLKSD-1 SSD-1 SD

Client Sample Id

19012109-00119012109-00275235-1-BKS75235-1-BLK19012109-001 S19012109-001 SD

Lab Sample Id

WWWWWW

Mtx

752357523575235752357523575235

Prep Batch

160961160961160961160961160961160961

Analytical Batch

01/11/201901/11/2019

----------------

01/11/201901/11/2019

Sampled

01/25/2019 16:1101/25/2019 16:1101/25/2019 16:1101/25/2019 16:1101/25/2019 16:1101/25/2019 16:11

Prepared

01/26/2019 05:5601/26/2019 06:4201/26/2019 05:5101/26/2019 05:4501/26/2019 06:0101/26/2019 06:06

Analyzed

106410641064106410641064

Analyst

InitialInitialBKSBLKMSMSD

Analysis Type


QC Summary 19012109

Froehling & Robertson, Inc. - Dulles/SterlingArlington County - Lead


75235-1-BLK

19012109-001

MB Sample Id:

Parent Sample Id:

Water

Soil

Matrix:

Matrix:

SW-846 6020 A

SW-846 6020 A

Analytical Method:

Analytical Method:

SW3010A

SW3010A

Prep Method:

Prep Method:

01/25/19

01/25/19

Date Prep:

Date Prep:

Lead

Lead

Parameter

Parameter %RPD

Flag

Flag

25

RPDLimit

6

160961

160961

Seq Number:

Seq Number:

01/26/19 05:51

01/26/19 06:01

Analysis Date

Analysis Date

Limits

Limits

80-120

75-125

MSD %Rec

125

MSDResult

2.886

LCS %Rec

MS %Rec

88

82

0.3538

2.714

Spike Amount

Spike Amount

0.4000

0.4000

MB Result

Parent Result

<0.05000

2.385

75235-1-BKS

19012109-001 S

LCS Sample Id:

MS Sample Id: 19012109-001 SDMSD Sample Id:

mg/L

mg/L

Units

Units

LCSResult

MSResult



SAMPLE CHAIN OF CUSTODY/AGREEMENT FORM14 o l3tcc1

lcto I l,3awww.phaseonlane.com

email : [email protected] SEPARATION SCIENCE, INC.

r.luu tc +u ilI Illrtr.i lvtcll !lctll(J Fax (410) 788-8723

*pRoJecr men, ,[ft![!fl *"HoNE No.:( .un=Waste$y'tr 0=0rt S=Sort L=Liquid S0L=Sotnl A=Ar

FAX NO.: ( )

SAMPLER(s): ,hIrh (,'ynv* DW cERr No.:

By: (l) ' ; +Requested TAT (OneTAT per COC)$ s-oay Es-oay Dz-o^v

Relinquished By: l2l,

e,o@Data Deliverables Bequired :

coA OC SUMM CLP LIKE OTHERtrtrtratftl ni bI

Relinquished By: (4) Time I Recei By STATE RESULTS REPORTED TO:MD DE PA VA WVtrtrtrtrtr

[.ssrvhaAIDdturco.Pss'prcvldedquolaiionincludlng.ny.flrallatb?rEybo.ot]orl5ffnllljbosllcolectionOeconrsnoscary.,*=REdUnED

CoN

TAI

NE

R

s


Mr GW=Ground W'tr WW=Waste Wtr 0=0it S=Soil L=Ltquid S0t=Sotid A=Air

FAX NO: ( )

*'ror=", ror.i fllffU[h(h4fu -\fi() pRoJEcr "o,filillfl

strE LocAIoN, ltillfwh ,VH p.o. No.:

+BequestedTAT (OneTAT per COCIS-Day Eg-oay E z-oayNext Dav l_l Emergency E otner

Relinquished By:ff 4

QmData Deliverables Required:COA OC SUMM CLp L;KE orHERtrtrtr

rce Presentp[f5 ,".0,!, Ko-2.)',

eoo ronuRrrvRel srATE RESULTS REpoRTEDTo:MD DE PA VA WVtrDtrDtr


PHASE SEPARATION SCIENCE, INC.lct c

lct tt

lltolI I'3'1

-t^-^^^^t:Ir tM.pt rsggirt rrta tgrvvii i

email : info@ phaseonline.com

West. Baltimore, . (410) 747-8770. (800) 932-904/ . Fax (4t a) lEA-a/zsC[*qd{/ngeemont Form", agrees to pay lor the above requested services per ttre latest version ofr6d$heub"fees if collection becomes necessary. x = BEoUIRED

coNTAI

N

ER

s

Th€client (client Name), by signing, or having client's agent sign, this,sample chain olthe Service Brochure or PSS-provided quotation including any Lnd all attorney's or other









Arlington County - LeadProject Name






1

3.2No

2






Present


Thomas Wingate

Lynn Jackson

01/11/2019

01/21/2019


(pH<2)(pH<2)

(pH>12)(pH>9)(pH<2)(pH<2)(pH<2)

(pH<2)



YesYesYes

Sample Container


YesYes


MD DW Cert. No.




Not Applicable

Not Applicable

N/A


N/AN/A


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