MO-3214_8097_CA_MRP_20201230

EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC 
www.excelengr.com 
Excel Civil & Environmental Associates, PLLC
625 Huntsman Court
Gastonia, North Carolina 28054
NC License No. P-0129
Telephone: [phone]
Facsimile: [phone]
Internet: www.excelengr.com
December 30, 2020
Mr. Dan Bowser
NCDENR / DWM / UST Section
Mooresville Regional Office
610 East Center Avenue
Mooresville, North Carolina 28115
Re: Groundwater Monitoring Report
Former SERVCO No. 01612
120 South Graham Street Charlotte,
North Carolina
MO-3214_8097_CA_MR_20201230
NCDEQ No. 8097
EXCEL No. 22117
Dear Mr. Bowser:
Excel Civil & Environmental Associates, PLLC is pleased to submit a copy of the
Groundwater Monitoring Report for the above referenced site on behalf of Service
Distributing Company, Incorporated (Servco) the former UST Owner.
If you have any questions after review of this report, please feel free to contact me.
Sincerely yours,
EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC
M.T. Stanforth, P.E., DEE
Project Engineer
p.c. Robert Gresham – Servco, Albemarle, NC
GROUNDWATER MONITORING REPORT
(FORMER) SERVCO NO. 01612
120 SOUTH GRAHAM STREET
CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA
NCDENR INCIDENT NO. 8097
EXCEL PROJECT NO. 22117
LAT = 35.2300 / LONG = 80.8481
DATE SUBMITTED:
December 30, 2020
SOURCE OF RELEASE:
Former Gasoline UST System
PREPARED FOR:
Service Distributing Company, Incorporated
Post Office Box 310
Albemarle, North Carolina 28001
Attn: Mr. Bob Gresham
PREPARED BY:
Excel Civil & Environmental Associates, PLLC
625 Huntsman Court
Gastonia, North Carolina 28054
NC License No. P-0129
Phone [phone]
Report Certification: M. T. Stanforth, P.E., DEE
Groundwater Monitoring Report December 30, 2020
(Former) SERVCO No. 01612 Incident No. 8097
Charlotte, North Carolina Excel No. 22117
EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC 
www.excelengr.com 
PROJECT SUMMARY
Groundwater quality samples were collected from monitoring wells MW-1 through
MW-5 on December 3rd and 4th, 2020. The samples were analyzed for volatile
organic compounds (VOCs) by EPA Method 6200B, ethylene dibromide (EDB) by
EPA Method 504.1, and Lead by EPA Method 3030C. During the site visit,
monitoring well MW-102 were found to be dry and MW-6 was not located.
No free product was observed during the sampling event, therefore samples were
collected accordingly. It is Excel’s standard operating procedure not to gauge
monitoring wells with an oil-water interface probe prior to sampling if said well has
not historically shown free product. Static water levels were collected with a
decontaminated water level indicator at the locations of all other monitoring wells
which were sampled.
The results of the laboratory analysis from the December 2020 sampling event
indicate that none of the samples exceeded Gross Contamination Levels (GCLs) for
all constituents analyzed.
Review of current liquid level data indicates that groundwater is flowing from south to
north.
CONCLUSIONS / RECOMMENDATIONS
At this time, we recommend continued monitoring and free product recovery as
necessary utilizing bio-socks until cleanup levels are met for at the site.
Groundwater Monitoring Report December 30, 2020
(Former) SERVCO No. 01612 Incident No. 8097
Charlotte, North Carolina Excel No. 22117

EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC 
www.excelengr.com 

PROJECT INFORMATION
PRIMARY CONSULTANT: Excel Civil & Environmental Associates, PLLC
PROJECT MANAGER: Mike Stanforth
SERVCO CONTACT: Robert Gresham
SITE HISTORY: In May 1991, four (4) steel regulated USTs were removed
from the site by Groundwater Management Associates,
Inc. (GMA) of Cary, North Carolina. Samples collected
during closure activities revealed elevated levels of
hydrocarbons. Free product was observed in monitoring
well MW-2 in August 1992 by GMA. Since that date free
product recovery efforts have been conducted at the site
by hand bailing observable free product in monitoring
well MW-2 and MW-6. As of August 2002 approximately
107-gallons of product-water mixture had been
recovered from MW-2 with 0.09-gallons of product-water
mixture recovered from MW-6.
GENERAL GEOLOGY: The subject site is located in the Inner Piedmont
Physiographic Province. This area of the Inner Piedmont
consists of metamorphic rocks including mica schist,
biotitic schist, and gneiss. The 1985 USGS Geologic Map
of North Carolina indicates this area as being underlying
with metamorphic granitic rock.
REGULATORY INTERACTION
AGENCY: NCDENR, MRO, DWM, UST Section
AGENCY CONTACT: Dan Bowser
REQUEST: Sampling of all available monitoring wells
SITE ACTIVITIES: Sampling of all available monitoring wells
RISK ASSESSMENT
SENSITIVE RECEPTORS: Underground utilities on-site and within R/Ws of South
Graham Street.
CLOSEST POTABLE WELL: None within 1,500-feet of the site
MONITORING
LIQUID LEVEL GAUGING FREQUENCY: None at this time.
GROUNDWATER SAMPLING METHOD: Volatile Organics by method EPA 6200B; EDB by EPA
504.1; Lead by method EPA 3030C

Groundwater Monitoring Report December 30, 2020
(Former) SERVCO No. 01612 Incident No. 8097
Charlotte, North Carolina Excel No. 22117
EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC 
www.excelengr.com 

TABLE 1 – December 2020 LIQUID LEVEL DATA

Well ID
Number
Top of
Casing (ft)
Depth to
Product (ft)
Depth to
Water (ft)
Product
Thickness (ft)
Water Table
Elevation (ft)
MW-1 90.00 -- 26.10 -- 63.90
MW-2R 87.55 -- 24.90 -- 62.65
MW-3 83.38 -- 20.27 -- 63.11
MW-4 83.83 -- 21.22 -- 62.61
MW-5 81.20 -- 19.05 -- 62.65
MW-6 83.05 Not Located
MW-102 -- Dry
NOTES: All data provided in feet / TOC – Top of Casing Elevation / DTW – Depth to Water
WTE – Water Table Elevation

Groundwater Monitoring Report December 30, 2020 (Former) SERVCO No. 01612 Incident No. 8097 Charlotte, North Carolina Excel No. 22117 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC www.excelengr.com  TABLE 2 - SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA Well ID No. Sample Date Benzene Toluene Ethylbenzene Xylenes MTBE IPE PCE TCE cis-1,2,DCE GCLs - 5,000 260,000 84,500 85,500 20,000 70,000 700 3,000 70,000 MW-1 7/27/12 < 1 < 5 < 1 < 3 < 1 < 1 < 1 < 1 < 1 12/3/20 < 0.0941 < 0.278 < 0.137 < 0.604 < 0.101 < 0.105 2.0 < 0.190 < 0.126 MW-2 11/8/04 19,000 18,000 < 2,500 12,700 < 12,000 < 12,000 < 2,500 < 2,500 < 2,500 12/1/06 5,300 2,000 73 8,400 2,400 81 NA NA NA 1/23/08 16,000 < 50,000 < 5,000 < 15,000 < 10,000 < 10,000 NA NA NA 7/27/12 10,000 2,600 2,900 11,600 < 500 < 500 < 500 < 500 < 500 MW-2R 5/14/20 6,420 5,660 4,450 19,270 239 J < 52.5 < 150 < 95 < 63 12/4/20 592 396 277 2,950 < 2.02 < 2.10 < 6 < 3.8 < 2.52 MW-3 7/27/12 9 < 5 8.9 < 3 130 120 < 1 < 1 < 1 5/15/20 0.113 J < 0.278 < 0.137 < 0.664 0.615 J 1.77 < 0.300 < 0.190 < 0.126 12/3/20 1.18 0.422 J 0.692 J 3.8 1.92 6.22 < 0.3 < 0.190 < 0.126 MW-4 7/27/12 < 1 < 5 < 1 < 3 63 12 < 1 < 1 < 1 5/15/20 < 0.0941 < 0.278 < 0.137 < 0.604 0.365 J < 0.105 14.6 0.546 J 2.28 12/3/20 < 0.0941 < 0.278 0.276 J 1.516 J < 0.101 < 0.105 8.38 0.233 J 0.809 J MW-5 7/27/12 < 1 < 5 < 1 < 3 < 1 < 1 24 2.2 1.8 5/14/20 0.120 J < 0.278 0.257 J 1.345 J 0.260 J < 0.105 9.49 0.711 J 0.699 J 12/3/20 < 0.0941 < 0.278 0.195 J < 0.604 0.296 J < 0.105 9.82 0.633 J 0.766 J MW-6 11/8/04 < 1 < 5 < 1 < 2 7.7 < 5 1.5 1 < 1 7/27/12 < 1 < 5 < 1 < 3 2.7 < 1 74 3.8 9.3 NOTES: Data provided in ug/l (ppb – parts per billion) / NA – Not Analyzed / MTBE – Methyl Tert Butyl Ether / IPE – Di-Isopropyl Ether / Data in BOLD and Highlighted indicates levels above GCLs / PCE – Tetrachloroethene / TCE – Trichloroethene / cis-1,2,DCE – cis-1,2,Dichloroethene
Groundwater Monitoring Report December 30, 2020 (Former) SERVCO No. 01612 Incident No. 8097 Charlotte, North Carolina Excel No. 22117 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC www.excelengr.com  ADDITIONAL CONSTITUENTS DETECTED DURING 5/20 SAMPLING EVENT: MW-2R: n-Butylbenzene = 86.4 J ug/l; Isopropylbenzene = 181 J ug/l; Napthalene = 818 J ug/l; n-propylbenzene = 613 ug/l; 1,2,4-Trimethylbenzene = 3,850 ug/l; 1,3,5-Trimethylbenzene = 1,080 ug/l; Lead = 58.2 ug/l MW-3: n-Butylbenzene = 0.166 J ug/l; sec-Butylbenzene = 2.38 ug/l; tert-Butylbenzene = 1.33 ug/l; Isopropylbenzene = 0.448 J; n-propylbenzene = 0.234 J ug/l; Lead = 8.21 ug/l MW-4: Chloroform = 2.90 J ug/l; Lead = 25.9 ug/l MW-5: Bromodichloromethane = 0.163 J ug/l; Chloroform = 6.90 J ug/l; 1,2-Dichloroethane = 0.192 J ug/l; n-propylbenzene = 0.148 J ug/l; 1,2,4-Trimethylbenzene = 0.799 J ug/l; 1,3,5-Trimethylbenzene = 0.233 J ug/l; Lead = 4.17 J ug/l ADDITIONAL CONSTITUENTS DETECTED DURING 12/20 SAMPLING EVENT: MW-1: Bromobenzene = 0.164 BJ ug/l; Chloroform = 6.32 ug/l; 1,2-Dichlorobenzene = 0.117 BJ ug/l; 1,3-Dichlorobenzene = 0.111 BJ ug/l; 1,4-Dichlorobenzene = 0.178 BJ ug/l; 1,2,3-Trichlorobenzene = 0.411 BJJ4 ug/l; Lead = 3.33 J ug/l MW-2R: sec-Butylbenzene = 6.77 J ug/l; Isopropylbenzene = 16.5 J ug/l; p-Isopropyltoluene = 7.31 J ug/l; Napthalene = 168 ug/l; n-propylbenzene = 40.2 ug/l; 1,2,4-Trimethylbenzene = 753 ug/l; 1,3,5-Trimethylbenzene = 481 ug/l; Lead = 35.1 ug/l MW-3: n-Butylbenzene = 4.82 ug/l; sec-Butylbenzene = 6.41 ug/l; tert-Butylbenzene = 3.02 ug/l; 1,2-Dichlorobenzene = 0.177 BJ ug/l; 1,3-Dichlorobenzene = 0.134 BJ ug/l; 1,4-Dichlorobenzene = 0.181 BJ ug/l; Isopropylbenzene = 0.877 J ug/l; Naphthalene 3.99 JJ4 ug/l; n-propylbenzene = 0.767 BJ ug/l; 1,2,3-Trichlorobenzene = 0.63 BJJ4 ug/l; 1,2,4-Trimethylbenzene = 4.05 ug/l; 1,3,5-Trimethylbenzene = 1.14 ug/l; Lead = 40.6 ug/l MW-4: sec-Butylbenzene = 0.141 J ug/l; Chloroform = 1.44 J ug/l; 1,2-Dichlorobenzene = 0.117 BJ ug/l; 1,4-Dichlorobenzene = 0.136 BJ ug/l; n-propylbenzene = 0.206 BJ ug/l; 1,2,3-Trichlorobenzene = 0.331 BJJ4 ug/l; 1,2,4-Trimethylbenzene = 1.35 ug/l; 1,3,5-Trimethylbenzene = 0.495 BJ ug/l; Lead = 156 ug/l MW-5: n-Butylbenzene = 0.26 J ug/l; Chloroform = 7.72 ug/l; 1,2-Dichlorobenzene = 0.111 BJ ug/l; 1,4-Dichlorobenzene = 0.214 BJ ug/l; n-propylbenzene = 0.113 BJ ug/l; 1,2,3-Trichlorobenzene = 0.315 BJJ4 ug/l; 1,2,4-Trimethylbenzene = 0.491 J ug/l; 1,3,5-Trimethylbenzene = 0.266 BJ ug/l
EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC
www.excelengr.com
APPENDICES
APPENDIX A – FIGURES
APPENDIX B – SUPPLEMENTAL SITE HISTORY TABLES
APPENDIX C – LABORATORY ANALYSES & CHAIN OF CUSTODY FORMS

EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC
www.excelengr.com

APPENDIX A - FIGURES

Figure 1 – Site Vicinity

Figure 2 – Site Plan

Figure 3 – Water Table Contour Map

Figure 4 – Groundwater Constituents Map

EXCEL CIVIL & ENVIRONMENTAL
ASSOCIATES, PLLC
625 HUNTSMAN COURT
GASTONIA, NC 28054
[phone]

FIGURE 1 –
SITE VICINITY MAP

Source: U.S.G.S. 7.5 Minute Topographic Map
Charlotte East, NC, Quadrangle, 1991 N

GROUNDWATER MONITORING REPORT120 SOUTH GRAHAM STREET, CHARLOTTE, NC625 HUNTSMANCOURT., GASTONIA, NCFORMER SERVCO FACILITY NO. 01612SERVICE DISTRIBUTING CO., INC.FIGURE 2 - SITE PLANDRAWN BY :22117PROJECT NO. :MAP TITLE :PREPARED FOR :SCALE :JDM1" = 30'8/8/12DATE :PHONE : [phone]W. FOURTH STREETMonitoring Well LocationLEGENDUST - Underground Storage TankMecklenburg County Tax Map.Map adapted from Aerial Photograph &NOTESASPHALTFORMER SERVCONO.
01612SEWNS. GRAHAM STREETPARKING LOTUST AREAFORMERPARKING LOTASPHALTASPHALTPARKING LOTPARKING LOTGRAVELPARKING LOTASPHALTASPHALTPARKING LOTMW-1MW-2MW-6MW-3MW-4MW-5RETAIN
ING WALLMW-102

EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC
www.excelengr.com

APPENDIX B – SUPPLEMENTAL SITE HISTORY TABLES

1 Table B‐1: SITE HISTORY – UST/AST SYSTEM and OTHER RELEASE INFORMATION (FORMER) SERVCO NO. 01612 120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINA NCDEQ Incident No. 8097 Excel Project No. 22117  UST ID Number Current / Most‐Recent Contents* Previous Contents* Capacity (in gallons) Construction Details** Tank Dimensions Description of Piping and Pumps  Date Tank Installed Status of UST*** Release associated with this UST System? 1  Gasoline 15,106      5/10/68 Removed 6/30/91 yes 2  Kerosene 2,009      5/9/74 yes 3  Gasoline 15,106      5/10/68 yes 4  Gasoline 5,001      5/10/68 yes                                                                                               Add additional records as necessary AST ID Number Current / Most‐Recent Contents* Previous Contents* Capacity (in gallons) Construction Details** Tank Dimensions Description of Piping and Pumps  Date Tank Installed Status of AST*** Release associated with this AST System?                         Add additional records as necessary Incident Number Material Released Date of Release Description of Release 8097   In May/June 1991, four (4) steel regulated USTs were removed from the site by Groundwater Management Associates, Inc. (GMA) of Cary, North Carolina.  Samples collected during closure activities revealed elevated levels of hydrocarbons.              Add additional records as necessary *    Gasoline (unleaded or leaded), diesel, used oil, waste oil, aviation fuel, etc., or pesticides, non‐halogenated or halogenated solvents, etc. ** Fiberglass (single‐ or double‐walled), steel (single‐ or double‐walled), steel with FRP (single‐ or double‐walled), steel with liner, other, unknown. *** Currently operational, not in use or temporarily closed (specify date), permanently closed in place (specify date), permanently closed by removal (specify date)
TABLE B‐2: SITE HISTORY ‐ UST/AST OWNER/OPERATOR and OTHER RESPONSIBLE PARTY 
INFORMATION 
(FORMER) SERVCO NO. 01612 
120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINA 
NCDEQ Incident No. 8097 
Excel Project No. 22117 

UST ID Number MO‐3214 

Facility ID Number 00‐0‐0000014070 

Owner Name (and Contact) Dates of Operation 
(mm/dd/yy to mm/dd/yy) 
City of Charlotte November 2016 to present 
Street Address 
600 East 4th Street 
City State Zip Telephone Number 
Charlotte NC 28202 704‐336‐7600 
Operator Name (and Contact) Dates of Operation 
(mm/dd/yy to mm/dd/yy) 
Service Distributing Co., Inc. 1955 to June 1991 
Street Address 
PO Box 310, 1024 N. Second Street 
City State Zip Telephone Number 
Albemarle NC 28002‐0310 704‐982‐2197 
Other Incidents Onsite or Commingled/In Close Proximity 
Incident Number  Date Incident 
Occurred  
Name of Responsible Party  
for Other Incident  
Date Incident 
Reported  
 Date Incident Closed 
(i/a)  
Street Address 

City State Zip Telephone Number 

TABLE B‐5:  PUBLIC and PRIVATE WATER SUPPLY WELL and OTHER RECEPTOR INFORMATION 
 (FORMER) SERVCO NO. 01612 
120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINA 
NCDEQ Incident No. 8097 
Excel Project No. 22117 

As part of previous site assessments, receptor surveys conducted by others within the 
immediate area surrounding the site did not identify any water supply wells within 1,500‐feet 
of the source area. According to the USGS Topographical Map and Mecklenburg County 
Geographical Information System (GIS) the nearest surface water body is Irwin Creek which 
located approximately 2000‐feet northwest of the source area (refer to Figure 1). According to 
the NCDEQ Surface Water Classification Data, this section of Irwin Creek is classified as “C” 
surface water. 
TABLE B‐7:  MONITORING and REMEDIATION WELL CONSTRUCTION INFORMATION
(FORMER) SERVCO NO. 01612
120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINA
NCDEQ Incident No. 8097
Excel Project No. 22117
Well ID
Number
MW-1 30.5 15.5 15.5-30.5 90.00
MW-2 28.5 13.5 13.5-28.5 87.55
MW-2R 33 18 18-33 87.55
MW-3 25 10 10-25 83.38
MW-4 25.5 13.5 13.5-23.5 83.83
MW-5 25.5 15.5 15.5-25.5 81.20
MW-6 25 14.5 14.5-25 83.05
MW-7 22 12 12-22 79.96
MW-8 21 11 11-21 82.54
MW-9 20 10 10-20 79.38
MW-102 -- -- -- --
NOTES:
Data provided in feet unless otherwise noted
Well Depth
Top of
Casing
Elevation
Casing
Depth
Screen
Interval
TABLE B‐8A: NAPL RECOVERY INFORMATION  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612 120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINA NCDEQ Incident No. 8097 Excel Project No. 22117  Date (m/dd/yy) Well ID # Product Type (gas, diesel, etc.) NAPL Recovery Method**Product Thickness before Recovery (feet) Product Thickness after Recovery (feet) Amount of Vaporized Product  (gallons) Amount of Liquid (Water + Product) (gallons) Amount of Liquid Product  (gallons) Total Amount of Product Recovered (gallons) 10/19/99 MW-2 * Gas Bailing 0.01 0.00 ‐‐ 0.08  0.08 10/19/99 MW-6 * Gas Bailing 0.00 0.00 ‐‐ 0.04  0.04 11/16/99 MW-2 * Gas Bailing 0.01 0.00 ‐‐ 0.10  0.10 11/16/99 MW-6 * Gas Bailing 0.00 0.00 ‐‐ 0.02  0.02 12/13/99 MW-2 * Gas Bailing 0.00 0.00 ‐‐ 0.10  0.10 12/13/99 MW-6 * Gas Bailing 0.00 0.00 ‐‐ 0.02  0.02 1/17/00 MW-2 * Gas Bailing 0.00 0.00 ‐‐ 0.04  0.04 1/17/00 MW-6 * Gas Bailing 0.00 0.00 ‐‐ 0.01  0.01 2/22/00 MW-2 * Gas Bailing 0.04 0.00 ‐‐ 0.03  0.03 8/27/02 MW-2 * Gas Bailing 1.50 0.00 ‐‐ 1.50  1.50 11/8/02 MW-2 Gas Bailing 1.07 0.00 ‐‐ 1.5  1.5
Date (m/dd/yy) Well ID # Product Type (gas, diesel, etc.) NAPL Recovery Method**Product Thickness before Recovery (feet) Product Thickness after Recovery (feet) Amount of Vaporized Product  (gallons) Amount of Liquid (Water + Product) (gallons) Amount of Liquid Product  (gallons) Total Amount of Product Recovered (gallons) 12/31/02 MW-2 Gas Bailing 0.72 0.00 ‐‐ 1.25  1.25 1/9/03 MW-2 Gas Bailing 0.47 0.00 ‐‐ 0.75  0.75 6/17/03 MW-2 Gas Bailing 0.02 0.00 ‐‐ 0.10 0.10 10/16/03 MW-2 Gas Bailing 0.02 0.00 -- 0.10 0.10    (Present all calculations in an attachment)    * Completed by others   **Bailing, Skimming, Aggressive Fluid Vapor Recovery, Mobile Multiphase Extraction, etc,  Table B‐8B: Cumulative Volume of NAPL Recovered from Site  Date of Recovery Event (m/dd/yy) Total Volume Recovered from Site During Current Recovery Event (gallons) Cumulative Total of Volume Recovered to Date from All Recovery Events  (gallons)  ‐‐ ‐‐ 5.64 
7/27/2012 23.00‐‐ ‐‐67.003/27/2013 25.80‐‐ ‐‐64.203/25/2014 26.81‐‐ ‐‐63.195/14/202012/3/2020 26.10‐‐ ‐‐63.90*     Depth to Water is measured from Top of Casing**   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]NM ‐ Not MeasuredMW‐1 90.0015.5‐30.5Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)Well ID # Top of Casing Elevation (AMSL) Screened Interval  (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)Excel Project No. 22117TABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070
7/27/2012 19.50‐‐ ‐‐68.053/13 ‐ 8/173/13 ‐ 8/17*     Depth to Water is measured from Top of Casing**   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]NM ‐ Not MeasuredExcel Project No. 22117TABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)MW‐2 87.55 13.5‐28.5DryWell ID # Top of Casing Elevation (AMSL) Screened Interval  (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)
4/7/2020 24.02‐‐ ‐‐63.535/14/2020 26.78‐‐ ‐‐ ‐26.7812/4/2020 24.90‐‐ ‐‐62.65*     Depth to Water is measured from Top of Casing**   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]NM ‐ Not MeasuredExcel Project No. 22117TABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)MW‐2R 87.55 18‐33Well ID # Top of Casing Elevation (AMSL) Screened Interval  (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)
7/27/2012 17.60‐‐ ‐‐65.783/27/2013 20.00‐‐ ‐‐63.383/25/2014 20.94‐‐ ‐‐62.445/15/2020 19.88‐‐ ‐‐63.5012/3/2020 20.27‐‐ ‐‐63.11*     Depth to Water is measured from Top of Casing**   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]NM ‐ Not MeasuredExcel Project No. 22117TABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)MW‐3 83.38 10‐25Well ID # Top of Casing Elevation (AMSL) Screened Interval  (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)
7/27/2012 18.50‐‐ ‐‐65.333/27/2013 20.98‐‐ ‐‐62.853/25/2014 21.78‐‐ ‐‐62.055/15/2020 20.71‐‐ ‐‐63.1212/3/2020 21.22‐‐ ‐‐62.61*     Depth to Water is measured from Top of Casing**   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]NM ‐ Not MeasuredExcel Project No. 22117TABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)MW‐4 83.83 13.5‐23.5Well ID # Top of Casing Elevation (AMSL) Screened Interval  (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)
7/27/2012 16.90‐‐ ‐‐64.303/27/2013 18.90‐‐ ‐‐62.303/25/2014 19.50‐‐ ‐‐61.705/14/2020 18.47‐‐ ‐‐62.7312/3/2020 19.05‐‐ ‐‐62.15*     Depth to Water is measured from Top of Casing**   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]NM ‐ Not MeasuredExcel Project No. 22117TABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)MW‐5 81.20 15.5‐25.5Well ID # Top of Casing Elevation (AMSL) Screened Interval  (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)
7/27/2012 17.60‐‐ ‐‐65.453/27/2013 19.92‐‐ ‐‐63.133/25/2014 20.77‐‐ ‐‐62.28*     Depth to Water is measured from Top of Casing**   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]NM ‐ Not MeasuredExcel Project No. 22117TABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)MW‐6 83.0514.5‐25Not LocatedWell ID # Top of Casing Elevation (AMSL) Screened Interval   (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)
8/17/2017 24.902.04‐‐‐‐10/24/2017 23.401.04‐‐‐‐11/16/2017 24.411.91‐‐‐‐12/29/2017 24.581.67‐‐‐‐4/7/2020 24.56‐‐‐‐‐‐5/14/202012/3/2020*     Depth to Water is measured from Top of Casing **   If NAPL is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation ‐ Depth to Water] + [NAPL thickness x 0.8581]*** 1 Inch WellNM ‐ Not MeasuredExcel Project No. 22117DryTABLE B‐9: CURRENT and HISTORICAL GROUNDWATER ELEVATIONS and NAPL THICKNESS  Revision Date: December 30, 2020 (FORMER) SERVCO NO. 01612120 SOUTH GRAHAM STREET, CHARLOTTE, NORTH CAROLINANCDEQ Incident No. 8097 / Facility Id No. 00‐0‐0000014070Depth to Water* (Corrected for NAPL Thickness) (feet)Groundwater Surface Elevation** (AMSL)MW‐102***‐‐ ‐‐DryWell ID # Top of Casing Elevation (AMSL) Screened Interval  (top of screen, bottom of screen)Date Measured (mm/dd/yy)Depth to Water* (Uncorrected)  (feet)NAPL Thickness  (feet)
Interim Reporting Tables 17 Table B-12: Evaluation of Change in Contaminant Mass Revision Date: 12/30/20 Incident Number and Name: 8097 former SERVCO 1612 Facility ID#: 00‐0‐0000014070 Initial Mass Estimate / Projected Milestones (from CAP) Initial Baseline Milestones1 End / Closure (Label 1) (Label 2) (Label 3) (Label 4) (Label 5) (Label 6) (Label 7) Projected Mass Reduction (%): 0% MNA MNA MNA MNA MNA MNA MNA Soil Source Zone Mass (Projected): Smear Source Zone Mass (Projected): Groundwater Zone Mass (Projected): Total Mass: Baseline/Milestone (Proj) 1,910 g Measured / Calculated Change in Contaminant Mass (from sampling) Milestone Sampling / Measurement Event Dates1 2004 2006 2008 2012 4/2020 12/2020 Measured Mass2 - Soil Source Zone: Smear Source Zone: Groundwater Zone: 7,259 g 2,025 g 6,114 g 3,820 g 2,453 g 226 g 1,910 g Removed Mass3 - Excavated from Soil/Smear: Extracted as Vapor/Gas: Extracted as Liquid: Total Mass Removed (est.): Revised Total Mass (est.)4: 7,259 g 2,025 g 6,114 g 3,820 g 2,453 g 226 g 1,910 g Estimated Reduction Rate5: 72.1 -201.9 37.5 35.8 90.7 Reference Milestone (label from above) Reference Milestone (value from above) Reduction Progress vs Milestone6: -0.1 -2.2 -1.0 -.28 0.88 1. Milestones are defined in the CAP. Label column headers with a representative title (‘Active Y1’, ‘MNA Yr 5’ etc.) Add sheets/columns as needed to more effectively track progress. 2. Calculate the measured mass for each unit by multiplying the analytical result by the representative volume (weight, pore space, etc.). (See https://www3.epa.gov/region02/rcra/ra2.pdf) 3. Calculate removed amounts based on excavation screening and/or system effluent monitoring, multiplied by total volume excavated or the system throughput during that period.
Interim Reporting Tables 18 4. Where measured from sampling/screening in situ, use the total Measured Mass. Where not screened (or if not representative), use prior Total Mass less current Total Mass Removed. 5. This equals the % reduction from the prior mass (current Total Mass ÷ prior Total Mass). Very large negative values may indicate a new contribution and may require investigation. 6. This equals the current mass reduction % progress (1 - (Revised Total Mass ÷ Applicable Milestone)). Zero or positive values indicate that the associated milestone has been reached

EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC
www.excelengr.com

APPENDIX C - LABORATORY ANALYSES & CHAIN OF CUSTODY FORMS

ANALYTICAL REPORT
December 15, 2020
Excel Civil & Environmental Associates
Sample Delivery Group:L1293432
Samples Received:12/05/2020
Project Number:22117
Description:Servco 01612
Report To:Mr. Mike Stanforth
625 Huntsman Court
Gastonia, NC 28054
Entire Report Reviewed By:
December 15, 2020
[Preliminary Report]
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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December 15, 2020
Heather J Wagner
Project Manager
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ONE LAB. NATIONWIDE.TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
MW-1 L1293432-01 5
MW-2R L1293432-02 7
MW-3 L1293432-03 9
MW-4 L1293432-04 11
MW-5 L1293432-05 13
TRIP BLANK L1293432-06 15
Qc: Quality Control Summary 17
Metals (ICP) by Method 6010D 17
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 19
EDB / DBCP by Method 504.1 29
Gl: Glossary of Terms 30
Al: Accreditations & Locations 31
Sc: Sample Chain of Custody 32
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-1 L1293432-01 GW C DeVane 12/03/20 16:20 12/05/20 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1589004 1 12/11/20 13:30 12/13/20 15:42 EL Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1590868 1 12/12/20 16:02 12/12/20 16:02 DWR Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1588840 1 12/09/20 08:56 12/11/20 09:21 MTJ Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-2R L1293432-02 GW C DeVane 12/04/20 15:40 12/05/20 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1589004 1 12/11/20 13:30 12/13/20 15:45 EL Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1591724 20 12/15/20 00:19 12/15/20 00:19 ADM Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1588840 1 12/09/20 08:56 12/11/20 09:33 MTJ Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-3 L1293432-03 GW C DeVane 12/03/20 15:55 12/05/20 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1589004 1 12/11/20 13:30 12/13/20 15:48 EL Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1590868 1 12/12/20 16:22 12/12/20 16:22 DWR Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1588840 1 12/09/20 08:56 12/11/20 09:45 MTJ Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-4 L1293432-04 GW C DeVane 12/03/20 16:50 12/05/20 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1589004 1 12/11/20 13:30 12/13/20 15:51 EL Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1590868 1 12/12/20 16:43 12/12/20 16:43 DWR Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1588840 1 12/09/20 08:56 12/11/20 09:57 MTJ Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-5 L1293432-05 GW C DeVane 12/03/20 17:15 12/05/20 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Metals (ICP) by Method 6010D WG1589006 1 12/10/20 02:44 12/10/20 20:51 EL Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1590868 1 12/12/20 17:03 12/12/20 17:03 DWR Mt. Juliet, TN
EDB / DBCP by Method 504.1 WG1588840 1 12/09/20 08:56 12/11/20 10:10 MTJ Mt. Juliet, TN
Collected by Collected date/time Received date/time
TRIP BLANK L1293432-06 GW C DeVane 12/03/20 00:00 12/05/20 08:45
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1590868 1 12/12/20 14:18 12/12/20 14:18 DWR Mt. Juliet, TN
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Heather J Wagner
Project Manager
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Heather J Wagner
Project Manager
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01
L1293432
MW-1
Collected date/time: 12/03/20 16:20
Metals (ICP) by Method 6010D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Lead 3.33 J 2.99 6.00 1 12/13/2020 15:42 WG1589004
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 11.3 50.0 1 12/12/2020 16:02 WG1590868
Acrolein U 2.54 50.0 1 12/12/2020 16:02 WG1590868
Acrylonitrile U 0.671 10.0 1 12/12/2020 16:02 WG1590868
Benzene U 0.0941 1.00 1 12/12/2020 16:02 WG1590868
Bromobenzene 0.164 B J 0.118 1.00 1 12/12/2020 16:02 WG1590868
Bromodichloromethane U 0.136 1.00 1 12/12/2020 16:02 WG1590868
Bromoform U 0.129 1.00 1 12/12/2020 16:02 WG1590868
Bromomethane U 0.605 5.00 1 12/12/2020 16:02 WG1590868
n-Butylbenzene U 0.157 1.00 1 12/12/2020 16:02 WG1590868
sec-Butylbenzene U 0.125 1.00 1 12/12/2020 16:02 WG1590868
tert-Butylbenzene U 0.127 1.00 1 12/12/2020 16:02 WG1590868
Carbon tetrachloride U 0.128 1.00 1 12/12/2020 16:02 WG1590868
Chlorobenzene U 0.116 1.00 1 12/12/2020 16:02 WG1590868
Chlorodibromomethane U 0.140 1.00 1 12/12/2020 16:02 WG1590868
Chloroethane U 0.192 5.00 1 12/12/2020 16:02 WG1590868
Chloroform 6.32 0.111 5.00 1 12/12/2020 16:02 WG1590868
Chloromethane U 0.960 2.50 1 12/12/2020 16:02 WG1590868
2-Chlorotoluene U 0.106 1.00 1 12/12/2020 16:02 WG1590868
4-Chlorotoluene U 0.114 1.00 1 12/12/2020 16:02 WG1590868
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 12/12/2020 16:02 WG1590868
1,2-Dibromoethane U 0.126 1.00 1 12/12/2020 16:02 WG1590868
Dibromomethane U 0.122 1.00 1 12/12/2020 16:02 WG1590868
1,2-Dichlorobenzene 0.117 B J 0.107 1.00 1 12/12/2020 16:02 WG1590868
1,3-Dichlorobenzene 0.111 B J 0.110 1.00 1 12/12/2020 16:02 WG1590868
1,4-Dichlorobenzene 0.178 B J 0.120 1.00 1 12/12/2020 16:02 WG1590868
Dichlorodifluoromethane U 0.374 5.00 1 12/12/2020 16:02 WG1590868
1,1-Dichloroethane U 0.100 1.00 1 12/12/2020 16:02 WG1590868
1,2-Dichloroethane U 0.0819 1.00 1 12/12/2020 16:02 WG1590868
1,1-Dichloroethene U 0.188 1.00 1 12/12/2020 16:02 WG1590868
cis-1,2-Dichloroethene U 0.126 1.00 1 12/12/2020 16:02 WG1590868
trans-1,2-Dichloroethene U 0.149 1.00 1 12/12/2020 16:02 WG1590868
1,2-Dichloropropane U 0.149 1.00 1 12/12/2020 16:02 WG1590868
1,1-Dichloropropene U 0.142 1.00 1 12/12/2020 16:02 WG1590868
1,3-Dichloropropane U 0.110 1.00 1 12/12/2020 16:02 WG1590868
2,2-Dichloropropane U 0.161 1.00 1 12/12/2020 16:02 WG1590868
Di-isopropyl ether U 0.105 1.00 1 12/12/2020 16:02 WG1590868
Ethylbenzene U 0.137 1.00 1 12/12/2020 16:02 WG1590868
Hexachloro-1,3-butadiene U 0.337 1.00 1 12/12/2020 16:02 WG1590868
Isopropylbenzene U 0.105 1.00 1 12/12/2020 16:02 WG1590868
p-Isopropyltoluene U 0.120 1.00 1 12/12/2020 16:02 WG1590868
2-Butanone (MEK)U 1.19 10.0 1 12/12/2020 16:02 WG1590868
Methylene Chloride U 0.430 5.00 1 12/12/2020 16:02 WG1590868
4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 12/12/2020 16:02 WG1590868
Methyl tert-butyl ether U 0.101 1.00 1 12/12/2020 16:02 WG1590868
Naphthalene U J4 1.00 5.00 1 12/12/2020 16:02 WG1590868
n-Propylbenzene U 0.0993 1.00 1 12/12/2020 16:02 WG1590868
Styrene U 0.118 1.00 1 12/12/2020 16:02 WG1590868
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 12/12/2020 16:02 WG1590868
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 12/12/2020 16:02 WG1590868
Tetrachloroethene 2.00 0.300 1.00 1 12/12/2020 16:02 WG1590868
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01
L1293432
MW-1
Collected date/time: 12/03/20 16:20
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Toluene U 0.278 1.00 1 12/12/2020 16:02 WG1590868
1,2,3-Trichlorobenzene 0.411 B J J4 0.230 1.00 1 12/12/2020 16:02 WG1590868
1,2,4-Trichlorobenzene U J4 0.481 1.00 1 12/12/2020 16:02 WG1590868
1,1,1-Trichloroethane U 0.149 1.00 1 12/12/2020 16:02 WG1590868
1,1,2-Trichloroethane U 0.158 1.00 1 12/12/2020 16:02 WG1590868
Trichloroethene U 0.190 1.00 1 12/12/2020 16:02 WG1590868
Trichlorofluoromethane U 0.160 5.00 1 12/12/2020 16:02 WG1590868
1,2,3-Trichloropropane U 0.237 2.50 1 12/12/2020 16:02 WG1590868
1,2,4-Trimethylbenzene U 0.322 1.00 1 12/12/2020 16:02 WG1590868
1,3,5-Trimethylbenzene U 0.104 1.00 1 12/12/2020 16:02 WG1590868
Vinyl chloride U 0.234 1.00 1 12/12/2020 16:02 WG1590868
o-Xylene U 0.174 1.00 1 12/12/2020 16:02 WG1590868
m&p-Xylenes U 0.430 2.00 1 12/12/2020 16:02 WG1590868
(S) Toluene-d8 101 80.0-120 12/12/2020 16:02 WG1590868
(S) 4-Bromofluorobenzene 98.3 77.0-126 12/12/2020 16:02 WG1590868
(S) 1,2-Dichloroethane-d4 99.7 70.0-130 12/12/2020 16:02 WG1590868
EDB / DBCP by Method 504.1
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Ethylene Dibromide U 0.00536 0.0200 1 12/11/2020 09:21 WG1588840
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 02
L1293432
MW-2R
Collected date/time: 12/04/20 15:40
Metals (ICP) by Method 6010D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Lead 35.1 2.99 6.00 1 12/13/2020 15:45 WG1589004
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 226 1000 20 12/15/2020 00:19 WG1591724
Acrolein U J4 50.8 1000 20 12/15/2020 00:19 WG1591724
Acrylonitrile U 13.4 200 20 12/15/2020 00:19 WG1591724
Benzene 592 1.88 20.0 20 12/15/2020 00:19 WG1591724
Bromobenzene U 2.36 20.0 20 12/15/2020 00:19 WG1591724
Bromodichloromethane U 2.72 20.0 20 12/15/2020 00:19 WG1591724
Bromoform U 2.58 20.0 20 12/15/2020 00:19 WG1591724
Bromomethane U 12.1 100 20 12/15/2020 00:19 WG1591724
n-Butylbenzene U 3.14 20.0 20 12/15/2020 00:19 WG1591724
sec-Butylbenzene 6.77 J 2.50 20.0 20 12/15/2020 00:19 WG1591724
tert-Butylbenzene U 2.54 20.0 20 12/15/2020 00:19 WG1591724
Carbon tetrachloride U 2.56 20.0 20 12/15/2020 00:19 WG1591724
Chlorobenzene U 2.32 20.0 20 12/15/2020 00:19 WG1591724
Chlorodibromomethane U 2.80 20.0 20 12/15/2020 00:19 WG1591724
Chloroethane U 3.84 100 20 12/15/2020 00:19 WG1591724
Chloroform U 2.22 100 20 12/15/2020 00:19 WG1591724
Chloromethane U 19.2 50.0 20 12/15/2020 00:19 WG1591724
2-Chlorotoluene U 2.12 20.0 20 12/15/2020 00:19 WG1591724
4-Chlorotoluene U 2.28 20.0 20 12/15/2020 00:19 WG1591724
1,2-Dibromo-3-Chloropropane U 5.52 100 20 12/15/2020 00:19 WG1591724
1,2-Dibromoethane U 2.52 20.0 20 12/15/2020 00:19 WG1591724
Dibromomethane U 2.44 20.0 20 12/15/2020 00:19 WG1591724
1,2-Dichlorobenzene U 2.14 20.0 20 12/15/2020 00:19 WG1591724
1,3-Dichlorobenzene U 2.20 20.0 20 12/15/2020 00:19 WG1591724
1,4-Dichlorobenzene U 2.40 20.0 20 12/15/2020 00:19 WG1591724
Dichlorodifluoromethane U 7.48 100 20 12/15/2020 00:19 WG1591724
1,1-Dichloroethane U 2.00 20.0 20 12/15/2020 00:19 WG1591724
1,2-Dichloroethane U 1.64 20.0 20 12/15/2020 00:19 WG1591724
1,1-Dichloroethene U 3.76 20.0 20 12/15/2020 00:19 WG1591724
cis-1,2-Dichloroethene U 2.52 20.0 20 12/15/2020 00:19 WG1591724
trans-1,2-Dichloroethene U 2.98 20.0 20 12/15/2020 00:19 WG1591724
1,2-Dichloropropane U 2.98 20.0 20 12/15/2020 00:19 WG1591724
1,1-Dichloropropene U 2.84 20.0 20 12/15/2020 00:19 WG1591724
1,3-Dichloropropane U 2.20 20.0 20 12/15/2020 00:19 WG1591724
2,2-Dichloropropane U 3.22 20.0 20 12/15/2020 00:19 WG1591724
Di-isopropyl ether U 2.10 20.0 20 12/15/2020 00:19 WG1591724
Ethylbenzene 277 2.74 20.0 20 12/15/2020 00:19 WG1591724
Hexachloro-1,3-butadiene U 6.74 20.0 20 12/15/2020 00:19 WG1591724
Isopropylbenzene 16.5 J 2.10 20.0 20 12/15/2020 00:19 WG1591724
p-Isopropyltoluene 7.31 J 2.40 20.0 20 12/15/2020 00:19 WG1591724
2-Butanone (MEK)U 23.8 200 20 12/15/2020 00:19 WG1591724
Methylene Chloride U 8.60 100 20 12/15/2020 00:19 WG1591724
4-Methyl-2-pentanone (MIBK) U 9.56 200 20 12/15/2020 00:19 WG1591724
Methyl tert-butyl ether U 2.02 20.0 20 12/15/2020 00:19 WG1591724
Naphthalene 168 20.0 100 20 12/15/2020 00:19 WG1591724
n-Propylbenzene 40.2 1.99 20.0 20 12/15/2020 00:19 WG1591724
Styrene U 2.36 20.0 20 12/15/2020 00:19 WG1591724
1,1,1,2-Tetrachloroethane U 2.94 20.0 20 12/15/2020 00:19 WG1591724
1,1,2,2-Tetrachloroethane U 2.66 20.0 20 12/15/2020 00:19 WG1591724
Tetrachloroethene U 6.00 20.0 20 12/15/2020 00:19 WG1591724
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 7 of 32
ONE LAB. NATIONWIDE.SAMPLE RESULTS - 02
L1293432
MW-2R
Collected date/time: 12/04/20 15:40
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Toluene 396 5.56 20.0 20 12/15/2020 00:19 WG1591724
1,2,3-Trichlorobenzene U 4.60 20.0 20 12/15/2020 00:19 WG1591724
1,2,4-Trichlorobenzene U 9.62 20.0 20 12/15/2020 00:19 WG1591724
1,1,1-Trichloroethane U 2.98 20.0 20 12/15/2020 00:19 WG1591724
1,1,2-Trichloroethane U 3.16 20.0 20 12/15/2020 00:19 WG1591724
Trichloroethene U 3.80 20.0 20 12/15/2020 00:19 WG1591724
Trichlorofluoromethane U 3.20 100 20 12/15/2020 00:19 WG1591724
1,2,3-Trichloropropane U 4.74 50.0 20 12/15/2020 00:19 WG1591724
1,2,4-Trimethylbenzene 753 6.44 20.0 20 12/15/2020 00:19 WG1591724
1,3,5-Trimethylbenzene 481 2.08 20.0 20 12/15/2020 00:19 WG1591724
Vinyl chloride U 4.68 20.0 20 12/15/2020 00:19 WG1591724
o-Xylene 1080 3.48 20.0 20 12/15/2020 00:19 WG1591724
m&p-Xylenes 1870 8.60 40.0 20 12/15/2020 00:19 WG1591724
(S) Toluene-d8 103 80.0-120 12/15/2020 00:19 WG1591724
(S) 4-Bromofluorobenzene 102 77.0-126 12/15/2020 00:19 WG1591724
(S) 1,2-Dichloroethane-d4 101 70.0-130 12/15/2020 00:19 WG1591724
EDB / DBCP by Method 504.1
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Ethylene Dibromide U 0.00536 0.0200 1 12/11/2020 09:33 WG1588840
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 8 of 32
ONE LAB. NATIONWIDE.SAMPLE RESULTS - 03
L1293432
MW-3
Collected date/time: 12/03/20 15:55
Metals (ICP) by Method 6010D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Lead 40.6 2.99 6.00 1 12/13/2020 15:48 WG1589004
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 11.3 50.0 1 12/12/2020 16:22 WG1590868
Acrolein U 2.54 50.0 1 12/12/2020 16:22 WG1590868
Acrylonitrile U 0.671 10.0 1 12/12/2020 16:22 WG1590868
Benzene 1.18 0.0941 1.00 1 12/12/2020 16:22 WG1590868
Bromobenzene U 0.118 1.00 1 12/12/2020 16:22 WG1590868
Bromodichloromethane U 0.136 1.00 1 12/12/2020 16:22 WG1590868
Bromoform U 0.129 1.00 1 12/12/2020 16:22 WG1590868
Bromomethane U 0.605 5.00 1 12/12/2020 16:22 WG1590868
n-Butylbenzene 4.82 0.157 1.00 1 12/12/2020 16:22 WG1590868
sec-Butylbenzene 6.41 0.125 1.00 1 12/12/2020 16:22 WG1590868
tert-Butylbenzene 3.02 0.127 1.00 1 12/12/2020 16:22 WG1590868
Carbon tetrachloride U 0.128 1.00 1 12/12/2020 16:22 WG1590868
Chlorobenzene U 0.116 1.00 1 12/12/2020 16:22 WG1590868
Chlorodibromomethane U 0.140 1.00 1 12/12/2020 16:22 WG1590868
Chloroethane U 0.192 5.00 1 12/12/2020 16:22 WG1590868
Chloroform U 0.111 5.00 1 12/12/2020 16:22 WG1590868
Chloromethane U 0.960 2.50 1 12/12/2020 16:22 WG1590868
2-Chlorotoluene U 0.106 1.00 1 12/12/2020 16:22 WG1590868
4-Chlorotoluene U 0.114 1.00 1 12/12/2020 16:22 WG1590868
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 12/12/2020 16:22 WG1590868
1,2-Dibromoethane U 0.126 1.00 1 12/12/2020 16:22 WG1590868
Dibromomethane U 0.122 1.00 1 12/12/2020 16:22 WG1590868
1,2-Dichlorobenzene 0.177 B J 0.107 1.00 1 12/12/2020 16:22 WG1590868
1,3-Dichlorobenzene 0.134 B J 0.110 1.00 1 12/12/2020 16:22 WG1590868
1,4-Dichlorobenzene 0.181 B J 0.120 1.00 1 12/12/2020 16:22 WG1590868
Dichlorodifluoromethane U 0.374 5.00 1 12/12/2020 16:22 WG1590868
1,1-Dichloroethane U 0.100 1.00 1 12/12/2020 16:22 WG1590868
1,2-Dichloroethane U 0.0819 1.00 1 12/12/2020 16:22 WG1590868
1,1-Dichloroethene U 0.188 1.00 1 12/12/2020 16:22 WG1590868
cis-1,2-Dichloroethene U 0.126 1.00 1 12/12/2020 16:22 WG1590868
trans-1,2-Dichloroethene U 0.149 1.00 1 12/12/2020 16:22 WG1590868
1,2-Dichloropropane U 0.149 1.00 1 12/12/2020 16:22 WG1590868
1,1-Dichloropropene U 0.142 1.00 1 12/12/2020 16:22 WG1590868
1,3-Dichloropropane U 0.110 1.00 1 12/12/2020 16:22 WG1590868
2,2-Dichloropropane U 0.161 1.00 1 12/12/2020 16:22 WG1590868
Di-isopropyl ether 6.22 0.105 1.00 1 12/12/2020 16:22 WG1590868
Ethylbenzene 0.692 J 0.137 1.00 1 12/12/2020 16:22 WG1590868
Hexachloro-1,3-butadiene U 0.337 1.00 1 12/12/2020 16:22 WG1590868
Isopropylbenzene 0.877 J 0.105 1.00 1 12/12/2020 16:22 WG1590868
p-Isopropyltoluene U 0.120 1.00 1 12/12/2020 16:22 WG1590868
2-Butanone (MEK)U 1.19 10.0 1 12/12/2020 16:22 WG1590868
Methylene Chloride U 0.430 5.00 1 12/12/2020 16:22 WG1590868
4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 12/12/2020 16:22 WG1590868
Methyl tert-butyl ether 1.92 0.101 1.00 1 12/12/2020 16:22 WG1590868
Naphthalene 3.99 J J4 1.00 5.00 1 12/12/2020 16:22 WG1590868
n-Propylbenzene 0.767 B J 0.0993 1.00 1 12/12/2020 16:22 WG1590868
Styrene U 0.118 1.00 1 12/12/2020 16:22 WG1590868
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 12/12/2020 16:22 WG1590868
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 12/12/2020 16:22 WG1590868
Tetrachloroethene U 0.300 1.00 1 12/12/2020 16:22 WG1590868
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 9 of 32
ONE LAB. NATIONWIDE.SAMPLE RESULTS - 03
L1293432
MW-3
Collected date/time: 12/03/20 15:55
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Toluene 0.422 J 0.278 1.00 1 12/12/2020 16:22 WG1590868
1,2,3-Trichlorobenzene 0.630 B J J4 0.230 1.00 1 12/12/2020 16:22 WG1590868
1,2,4-Trichlorobenzene U J4 0.481 1.00 1 12/12/2020 16:22 WG1590868
1,1,1-Trichloroethane U 0.149 1.00 1 12/12/2020 16:22 WG1590868
1,1,2-Trichloroethane U 0.158 1.00 1 12/12/2020 16:22 WG1590868
Trichloroethene U 0.190 1.00 1 12/12/2020 16:22 WG1590868
Trichlorofluoromethane U 0.160 5.00 1 12/12/2020 16:22 WG1590868
1,2,3-Trichloropropane U 0.237 2.50 1 12/12/2020 16:22 WG1590868
1,2,4-Trimethylbenzene 4.05 0.322 1.00 1 12/12/2020 16:22 WG1590868
1,3,5-Trimethylbenzene 1.14 0.104 1.00 1 12/12/2020 16:22 WG1590868
Vinyl chloride U 0.234 1.00 1 12/12/2020 16:22 WG1590868
o-Xylene 1.29 0.174 1.00 1 12/12/2020 16:22 WG1590868
m&p-Xylenes 2.51 0.430 2.00 1 12/12/2020 16:22 WG1590868
(S) Toluene-d8 89.5 80.0-120 12/12/2020 16:22 WG1590868
(S) 4-Bromofluorobenzene 96.9 77.0-126 12/12/2020 16:22 WG1590868
(S) 1,2-Dichloroethane-d4 99.5 70.0-130 12/12/2020 16:22 WG1590868
EDB / DBCP by Method 504.1
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Ethylene Dibromide U 0.00536 0.0200 1 12/11/2020 09:45 WG1588840
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:12 10 of 32
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 10 of 32
ONE LAB. NATIONWIDE.SAMPLE RESULTS - 04
L1293432
MW-4
Collected date/time: 12/03/20 16:50
Metals (ICP) by Method 6010D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Lead 156 2.99 6.00 1 12/13/2020 15:51 WG1589004
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 11.3 50.0 1 12/12/2020 16:43 WG1590868
Acrolein U 2.54 50.0 1 12/12/2020 16:43 WG1590868
Acrylonitrile U 0.671 10.0 1 12/12/2020 16:43 WG1590868
Benzene U 0.0941 1.00 1 12/12/2020 16:43 WG1590868
Bromobenzene U 0.118 1.00 1 12/12/2020 16:43 WG1590868
Bromodichloromethane U 0.136 1.00 1 12/12/2020 16:43 WG1590868
Bromoform U 0.129 1.00 1 12/12/2020 16:43 WG1590868
Bromomethane U 0.605 5.00 1 12/12/2020 16:43 WG1590868
n-Butylbenzene U 0.157 1.00 1 12/12/2020 16:43 WG1590868
sec-Butylbenzene 0.141 J 0.125 1.00 1 12/12/2020 16:43 WG1590868
tert-Butylbenzene U 0.127 1.00 1 12/12/2020 16:43 WG1590868
Carbon tetrachloride U 0.128 1.00 1 12/12/2020 16:43 WG1590868
Chlorobenzene U 0.116 1.00 1 12/12/2020 16:43 WG1590868
Chlorodibromomethane U 0.140 1.00 1 12/12/2020 16:43 WG1590868
Chloroethane U 0.192 5.00 1 12/12/2020 16:43 WG1590868
Chloroform 1.44 J 0.111 5.00 1 12/12/2020 16:43 WG1590868
Chloromethane U 0.960 2.50 1 12/12/2020 16:43 WG1590868
2-Chlorotoluene U 0.106 1.00 1 12/12/2020 16:43 WG1590868
4-Chlorotoluene U 0.114 1.00 1 12/12/2020 16:43 WG1590868
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 12/12/2020 16:43 WG1590868
1,2-Dibromoethane U 0.126 1.00 1 12/12/2020 16:43 WG1590868
Dibromomethane U 0.122 1.00 1 12/12/2020 16:43 WG1590868
1,2-Dichlorobenzene 0.117 B J 0.107 1.00 1 12/12/2020 16:43 WG1590868
1,3-Dichlorobenzene U 0.110 1.00 1 12/12/2020 16:43 WG1590868
1,4-Dichlorobenzene 0.136 B J 0.120 1.00 1 12/12/2020 16:43 WG1590868
Dichlorodifluoromethane U 0.374 5.00 1 12/12/2020 16:43 WG1590868
1,1-Dichloroethane U 0.100 1.00 1 12/12/2020 16:43 WG1590868
1,2-Dichloroethane U 0.0819 1.00 1 12/12/2020 16:43 WG1590868
1,1-Dichloroethene U 0.188 1.00 1 12/12/2020 16:43 WG1590868
cis-1,2-Dichloroethene 0.809 J 0.126 1.00 1 12/12/2020 16:43 WG1590868
trans-1,2-Dichloroethene U 0.149 1.00 1 12/12/2020 16:43 WG1590868
1,2-Dichloropropane U 0.149 1.00 1 12/12/2020 16:43 WG1590868
1,1-Dichloropropene U 0.142 1.00 1 12/12/2020 16:43 WG1590868
1,3-Dichloropropane U 0.110 1.00 1 12/12/2020 16:43 WG1590868
2,2-Dichloropropane U 0.161 1.00 1 12/12/2020 16:43 WG1590868
Di-isopropyl ether U 0.105 1.00 1 12/12/2020 16:43 WG1590868
Ethylbenzene 0.276 J 0.137 1.00 1 12/12/2020 16:43 WG1590868
Hexachloro-1,3-butadiene U 0.337 1.00 1 12/12/2020 16:43 WG1590868
Isopropylbenzene U 0.105 1.00 1 12/12/2020 16:43 WG1590868
p-Isopropyltoluene U 0.120 1.00 1 12/12/2020 16:43 WG1590868
2-Butanone (MEK)U 1.19 10.0 1 12/12/2020 16:43 WG1590868
Methylene Chloride U 0.430 5.00 1 12/12/2020 16:43 WG1590868
4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 12/12/2020 16:43 WG1590868
Methyl tert-butyl ether U 0.101 1.00 1 12/12/2020 16:43 WG1590868
Naphthalene U J4 1.00 5.00 1 12/12/2020 16:43 WG1590868
n-Propylbenzene 0.206 B J 0.0993 1.00 1 12/12/2020 16:43 WG1590868
Styrene U 0.118 1.00 1 12/12/2020 16:43 WG1590868
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 12/12/2020 16:43 WG1590868
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 12/12/2020 16:43 WG1590868
Tetrachloroethene 8.38 0.300 1.00 1 12/12/2020 16:43 WG1590868
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:12 11 of 32
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 11 of 32
ONE LAB. NATIONWIDE.SAMPLE RESULTS - 04
L1293432
MW-4
Collected date/time: 12/03/20 16:50
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Toluene U 0.278 1.00 1 12/12/2020 16:43 WG1590868
1,2,3-Trichlorobenzene 0.331 B J J4 0.230 1.00 1 12/12/2020 16:43 WG1590868
1,2,4-Trichlorobenzene U J4 0.481 1.00 1 12/12/2020 16:43 WG1590868
1,1,1-Trichloroethane U 0.149 1.00 1 12/12/2020 16:43 WG1590868
1,1,2-Trichloroethane U 0.158 1.00 1 12/12/2020 16:43 WG1590868
Trichloroethene 0.233 J 0.190 1.00 1 12/12/2020 16:43 WG1590868
Trichlorofluoromethane U 0.160 5.00 1 12/12/2020 16:43 WG1590868
1,2,3-Trichloropropane U 0.237 2.50 1 12/12/2020 16:43 WG1590868
1,2,4-Trimethylbenzene 1.35 0.322 1.00 1 12/12/2020 16:43 WG1590868
1,3,5-Trimethylbenzene 0.495 B J 0.104 1.00 1 12/12/2020 16:43 WG1590868
Vinyl chloride U 0.234 1.00 1 12/12/2020 16:43 WG1590868
o-Xylene 0.356 J 0.174 1.00 1 12/12/2020 16:43 WG1590868
m&p-Xylenes 1.16 J 0.430 2.00 1 12/12/2020 16:43 WG1590868
(S) Toluene-d8 96.5 80.0-120 12/12/2020 16:43 WG1590868
(S) 4-Bromofluorobenzene 103 77.0-126 12/12/2020 16:43 WG1590868
(S) 1,2-Dichloroethane-d4 98.4 70.0-130 12/12/2020 16:43 WG1590868
EDB / DBCP by Method 504.1
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Ethylene Dibromide U 0.00536 0.0200 1 12/11/2020 09:57 WG1588840
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 05
L1293432
MW-5
Collected date/time: 12/03/20 17:15
Metals (ICP) by Method 6010D
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Lead U 2.99 6.00 1 12/10/2020 20:51 WG1589006
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 11.3 50.0 1 12/12/2020 17:03 WG1590868
Acrolein U 2.54 50.0 1 12/12/2020 17:03 WG1590868
Acrylonitrile U 0.671 10.0 1 12/12/2020 17:03 WG1590868
Benzene U 0.0941 1.00 1 12/12/2020 17:03 WG1590868
Bromobenzene U 0.118 1.00 1 12/12/2020 17:03 WG1590868
Bromodichloromethane U 0.136 1.00 1 12/12/2020 17:03 WG1590868
Bromoform U 0.129 1.00 1 12/12/2020 17:03 WG1590868
Bromomethane U 0.605 5.00 1 12/12/2020 17:03 WG1590868
n-Butylbenzene 0.260 J 0.157 1.00 1 12/12/2020 17:03 WG1590868
sec-Butylbenzene U 0.125 1.00 1 12/12/2020 17:03 WG1590868
tert-Butylbenzene U 0.127 1.00 1 12/12/2020 17:03 WG1590868
Carbon tetrachloride U 0.128 1.00 1 12/12/2020 17:03 WG1590868
Chlorobenzene U 0.116 1.00 1 12/12/2020 17:03 WG1590868
Chlorodibromomethane U 0.140 1.00 1 12/12/2020 17:03 WG1590868
Chloroethane U 0.192 5.00 1 12/12/2020 17:03 WG1590868
Chloroform 7.72 0.111 5.00 1 12/12/2020 17:03 WG1590868
Chloromethane U 0.960 2.50 1 12/12/2020 17:03 WG1590868
2-Chlorotoluene U 0.106 1.00 1 12/12/2020 17:03 WG1590868
4-Chlorotoluene U 0.114 1.00 1 12/12/2020 17:03 WG1590868
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 12/12/2020 17:03 WG1590868
1,2-Dibromoethane U 0.126 1.00 1 12/12/2020 17:03 WG1590868
Dibromomethane U 0.122 1.00 1 12/12/2020 17:03 WG1590868
1,2-Dichlorobenzene 0.111 B J 0.107 1.00 1 12/12/2020 17:03 WG1590868
1,3-Dichlorobenzene U 0.110 1.00 1 12/12/2020 17:03 WG1590868
1,4-Dichlorobenzene 0.214 B J 0.120 1.00 1 12/12/2020 17:03 WG1590868
Dichlorodifluoromethane U 0.374 5.00 1 12/12/2020 17:03 WG1590868
1,1-Dichloroethane U 0.100 1.00 1 12/12/2020 17:03 WG1590868
1,2-Dichloroethane U 0.0819 1.00 1 12/12/2020 17:03 WG1590868
1,1-Dichloroethene U 0.188 1.00 1 12/12/2020 17:03 WG1590868
cis-1,2-Dichloroethene 0.766 J 0.126 1.00 1 12/12/2020 17:03 WG1590868
trans-1,2-Dichloroethene U 0.149 1.00 1 12/12/2020 17:03 WG1590868
1,2-Dichloropropane U 0.149 1.00 1 12/12/2020 17:03 WG1590868
1,1-Dichloropropene U 0.142 1.00 1 12/12/2020 17:03 WG1590868
1,3-Dichloropropane U 0.110 1.00 1 12/12/2020 17:03 WG1590868
2,2-Dichloropropane U 0.161 1.00 1 12/12/2020 17:03 WG1590868
Di-isopropyl ether U 0.105 1.00 1 12/12/2020 17:03 WG1590868
Ethylbenzene 0.195 J 0.137 1.00 1 12/12/2020 17:03 WG1590868
Hexachloro-1,3-butadiene U 0.337 1.00 1 12/12/2020 17:03 WG1590868
Isopropylbenzene U 0.105 1.00 1 12/12/2020 17:03 WG1590868
p-Isopropyltoluene U 0.120 1.00 1 12/12/2020 17:03 WG1590868
2-Butanone (MEK)U 1.19 10.0 1 12/12/2020 17:03 WG1590868
Methylene Chloride U 0.430 5.00 1 12/12/2020 17:03 WG1590868
4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 12/12/2020 17:03 WG1590868
Methyl tert-butyl ether 0.296 J 0.101 1.00 1 12/12/2020 17:03 WG1590868
Naphthalene U J4 1.00 5.00 1 12/12/2020 17:03 WG1590868
n-Propylbenzene 0.113 B J 0.0993 1.00 1 12/12/2020 17:03 WG1590868
Styrene U 0.118 1.00 1 12/12/2020 17:03 WG1590868
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 12/12/2020 17:03 WG1590868
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 12/12/2020 17:03 WG1590868
Tetrachloroethene 9.82 0.300 1.00 1 12/12/2020 17:03 WG1590868
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 05
L1293432
MW-5
Collected date/time: 12/03/20 17:15
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Toluene U 0.278 1.00 1 12/12/2020 17:03 WG1590868
1,2,3-Trichlorobenzene 0.315 B J J4 0.230 1.00 1 12/12/2020 17:03 WG1590868
1,2,4-Trichlorobenzene U J4 0.481 1.00 1 12/12/2020 17:03 WG1590868
1,1,1-Trichloroethane U 0.149 1.00 1 12/12/2020 17:03 WG1590868
1,1,2-Trichloroethane U 0.158 1.00 1 12/12/2020 17:03 WG1590868
Trichloroethene 0.633 J 0.190 1.00 1 12/12/2020 17:03 WG1590868
Trichlorofluoromethane U 0.160 5.00 1 12/12/2020 17:03 WG1590868
1,2,3-Trichloropropane U 0.237 2.50 1 12/12/2020 17:03 WG1590868
1,2,4-Trimethylbenzene 0.491 J 0.322 1.00 1 12/12/2020 17:03 WG1590868
1,3,5-Trimethylbenzene 0.266 B J 0.104 1.00 1 12/12/2020 17:03 WG1590868
Vinyl chloride U 0.234 1.00 1 12/12/2020 17:03 WG1590868
o-Xylene U 0.174 1.00 1 12/12/2020 17:03 WG1590868
m&p-Xylenes U 0.430 2.00 1 12/12/2020 17:03 WG1590868
(S) Toluene-d8 102 80.0-120 12/12/2020 17:03 WG1590868
(S) 4-Bromofluorobenzene 86.9 77.0-126 12/12/2020 17:03 WG1590868
(S) 1,2-Dichloroethane-d4 96.1 70.0-130 12/12/2020 17:03 WG1590868
EDB / DBCP by Method 504.1
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Ethylene Dibromide U 0.00536 0.0200 1 12/11/2020 10:10 WG1588840
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 14 of 32
ONE LAB. NATIONWIDE.SAMPLE RESULTS - 06
L1293432
TRIP BLANK
Collected date/time: 12/03/20 00:00
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 11.3 50.0 1 12/12/2020 14:18 WG1590868
Acrolein U 2.54 50.0 1 12/12/2020 14:18 WG1590868
Acrylonitrile U 0.671 10.0 1 12/12/2020 14:18 WG1590868
Benzene U 0.0941 1.00 1 12/12/2020 14:18 WG1590868
Bromobenzene 0.220 B J 0.118 1.00 1 12/12/2020 14:18 WG1590868
Bromodichloromethane U 0.136 1.00 1 12/12/2020 14:18 WG1590868
Bromoform U 0.129 1.00 1 12/12/2020 14:18 WG1590868
Bromomethane U 0.605 5.00 1 12/12/2020 14:18 WG1590868
n-Butylbenzene U 0.157 1.00 1 12/12/2020 14:18 WG1590868
sec-Butylbenzene U 0.125 1.00 1 12/12/2020 14:18 WG1590868
tert-Butylbenzene U 0.127 1.00 1 12/12/2020 14:18 WG1590868
Carbon tetrachloride U 0.128 1.00 1 12/12/2020 14:18 WG1590868
Chlorobenzene U 0.116 1.00 1 12/12/2020 14:18 WG1590868
Chlorodibromomethane U 0.140 1.00 1 12/12/2020 14:18 WG1590868
Chloroethane U 0.192 5.00 1 12/12/2020 14:18 WG1590868
Chloroform U 0.111 5.00 1 12/12/2020 14:18 WG1590868
Chloromethane U 0.960 2.50 1 12/12/2020 14:18 WG1590868
2-Chlorotoluene U 0.106 1.00 1 12/12/2020 14:18 WG1590868
4-Chlorotoluene 0.129 J 0.114 1.00 1 12/12/2020 14:18 WG1590868
1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 12/12/2020 14:18 WG1590868
1,2-Dibromoethane U 0.126 1.00 1 12/12/2020 14:18 WG1590868
Dibromomethane U 0.122 1.00 1 12/12/2020 14:18 WG1590868
1,2-Dichlorobenzene 0.294 B J 0.107 1.00 1 12/12/2020 14:18 WG1590868
1,3-Dichlorobenzene U 0.110 1.00 1 12/12/2020 14:18 WG1590868
1,4-Dichlorobenzene 0.182 B J 0.120 1.00 1 12/12/2020 14:18 WG1590868
Dichlorodifluoromethane U 0.374 5.00 1 12/12/2020 14:18 WG1590868
1,1-Dichloroethane U 0.100 1.00 1 12/12/2020 14:18 WG1590868
1,2-Dichloroethane U 0.0819 1.00 1 12/12/2020 14:18 WG1590868
1,1-Dichloroethene U 0.188 1.00 1 12/12/2020 14:18 WG1590868
cis-1,2-Dichloroethene U 0.126 1.00 1 12/12/2020 14:18 WG1590868
trans-1,2-Dichloroethene U 0.149 1.00 1 12/12/2020 14:18 WG1590868
1,2-Dichloropropane U 0.149 1.00 1 12/12/2020 14:18 WG1590868
1,1-Dichloropropene U 0.142 1.00 1 12/12/2020 14:18 WG1590868
1,3-Dichloropropane U 0.110 1.00 1 12/12/2020 14:18 WG1590868
2,2-Dichloropropane U 0.161 1.00 1 12/12/2020 14:18 WG1590868
Di-isopropyl ether U 0.105 1.00 1 12/12/2020 14:18 WG1590868
Ethylbenzene U 0.137 1.00 1 12/12/2020 14:18 WG1590868
Hexachloro-1,3-butadiene U 0.337 1.00 1 12/12/2020 14:18 WG1590868
Isopropylbenzene U 0.105 1.00 1 12/12/2020 14:18 WG1590868
p-Isopropyltoluene U 0.120 1.00 1 12/12/2020 14:18 WG1590868
2-Butanone (MEK)U 1.19 10.0 1 12/12/2020 14:18 WG1590868
Methylene Chloride U 0.430 5.00 1 12/12/2020 14:18 WG1590868
4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 12/12/2020 14:18 WG1590868
Methyl tert-butyl ether U 0.101 1.00 1 12/12/2020 14:18 WG1590868
Naphthalene U J4 1.00 5.00 1 12/12/2020 14:18 WG1590868
n-Propylbenzene U 0.0993 1.00 1 12/12/2020 14:18 WG1590868
Styrene U 0.118 1.00 1 12/12/2020 14:18 WG1590868
1,1,1,2-Tetrachloroethane U 0.147 1.00 1 12/12/2020 14:18 WG1590868
1,1,2,2-Tetrachloroethane U 0.133 1.00 1 12/12/2020 14:18 WG1590868
Tetrachloroethene U 0.300 1.00 1 12/12/2020 14:18 WG1590868
Toluene U 0.278 1.00 1 12/12/2020 14:18 WG1590868
1,2,3-Trichlorobenzene 0.523 B J J4 0.230 1.00 1 12/12/2020 14:18 WG1590868
1,2,4-Trichlorobenzene U J4 0.481 1.00 1 12/12/2020 14:18 WG1590868
1,1,1-Trichloroethane U 0.149 1.00 1 12/12/2020 14:18 WG1590868
1,1,2-Trichloroethane U 0.158 1.00 1 12/12/2020 14:18 WG1590868
Trichloroethene U 0.190 1.00 1 12/12/2020 14:18 WG1590868
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:12 15 of 32
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Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 15 of 32
ONE LAB. NATIONWIDE.SAMPLE RESULTS - 06
L1293432
TRIP BLANK
Collected date/time: 12/03/20 00:00
Volatile Organic Compounds (GC/MS) by Method 6200B-2011
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Trichlorofluoromethane U 0.160 5.00 1 12/12/2020 14:18 WG1590868
1,2,3-Trichloropropane U 0.237 2.50 1 12/12/2020 14:18 WG1590868
1,2,4-Trimethylbenzene U 0.322 1.00 1 12/12/2020 14:18 WG1590868
1,3,5-Trimethylbenzene U 0.104 1.00 1 12/12/2020 14:18 WG1590868
Vinyl chloride U 0.234 1.00 1 12/12/2020 14:18 WG1590868
o-Xylene U 0.174 1.00 1 12/12/2020 14:18 WG1590868
m&p-Xylenes U 0.430 2.00 1 12/12/2020 14:18 WG1590868
(S) Toluene-d8 101 80.0-120 12/12/2020 14:18 WG1590868
(S) 4-Bromofluorobenzene 116 77.0-126 12/12/2020 14:18 WG1590868
(S) 1,2-Dichloroethane-d4 98.6 70.0-130 12/12/2020 14:18 WG1590868
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1589004
Metals (ICP) by Method 6010D L1293432-01,02,03,04
Method Blank (MB)
(MB) R3603029-1 12/13/20 14:31
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Lead U 2.99 6.00
Laboratory Control Sample (LCS)
(LCS) R3603029-2 12/13/20 14:33
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Lead 1000 951 95.1 80.0-120
L1293281-32 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1293281-32 12/13/20 14:36 • (MS) R3603029-4 12/13/20 14:42 • (MSD) R3603029-5 12/13/20 14:45
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Lead 1000 68.9 1110 1100 104 103 1 75.0-125 0.878 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1589006
Metals (ICP) by Method 6010D L1293432-05
Method Blank (MB)
(MB) R3602433-1 12/10/20 20:33
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Lead U 2.99 6.00
Laboratory Control Sample (LCS)
(LCS) R3602433-2 12/10/20 20:36
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Lead 1000 985 98.5 80.0-120
L1294123-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1294123-03 12/10/20 20:38 • (MS) R3602433-4 12/10/20 20:43 • (MSD) R3602433-5 12/10/20 20:46
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Lead 1000 U 1010 995 101 99.5 1 75.0-125 1.88 20
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:12 18 of 32
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 18 of 32
ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1590868
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1293432-01,03,04,05,06
Method Blank (MB)
(MB) R3602819-2 12/12/20 09:08
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acetone U 11.3 50.0
Acrolein U 2.54 50.0
Acrylonitrile U 0.671 10.0
Benzene U 0.0941 1.00
Bromobenzene 0.154 J 0.118 1.00
Bromodichloromethane U 0.136 1.00
Bromoform U 0.129 1.00
Bromomethane U 0.605 5.00
n-Butylbenzene U 0.157 1.00
sec-Butylbenzene U 0.125 1.00
tert-Butylbenzene U 0.127 1.00
Carbon tetrachloride U 0.128 1.00
Chlorobenzene U 0.116 1.00
Chlorodibromomethane U 0.140 1.00
Chloroethane U 0.192 5.00
Chloroform U 0.111 5.00
Chloromethane U 0.960 2.50
2-Chlorotoluene 0.118 J 0.106 1.00
4-Chlorotoluene U 0.114 1.00
1,2-Dibromo-3-Chloropropane U 0.276 5.00
1,2-Dibromoethane U 0.126 1.00
Dibromomethane U 0.122 1.00
1,2-Dichlorobenzene 0.214 J 0.107 1.00
1,3-Dichlorobenzene 0.167 J 0.110 1.00
1,4-Dichlorobenzene 0.232 J 0.120 1.00
Dichlorodifluoromethane U 0.374 5.00
1,1-Dichloroethane U 0.100 1.00
1,2-Dichloroethane U 0.0819 1.00
1,1-Dichloroethene U 0.188 1.00
cis-1,2-Dichloroethene U 0.126 1.00
trans-1,2-Dichloroethene U 0.149 1.00
1,2-Dichloropropane U 0.149 1.00
1,1-Dichloropropene U 0.142 1.00
1,3-Dichloropropane U 0.110 1.00
2,2-Dichloropropane U 0.161 1.00
Di-isopropyl ether U 0.105 1.00
Ethylbenzene U 0.137 1.00
Hexachloro-1,3-butadiene U 0.337 1.00
Isopropylbenzene U 0.105 1.00
p-Isopropyltoluene U 0.120 1.00
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:12 19 of 32
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1590868
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1293432-01,03,04,05,06
Method Blank (MB)
(MB) R3602819-2 12/12/20 09:08
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
2-Butanone (MEK)U 1.19 10.0
Methylene Chloride U 0.430 5.00
4-Methyl-2-pentanone (MIBK) U 0.478 10.0
Methyl tert-butyl ether U 0.101 1.00
Naphthalene U 1.00 5.00
n-Propylbenzene 0.103 J 0.0993 1.00
Styrene U 0.118 1.00
1,1,1,2-Tetrachloroethane U 0.147 1.00
1,1,2,2-Tetrachloroethane U 0.133 1.00
Tetrachloroethene U 0.300 1.00
Toluene U 0.278 1.00
1,2,3-Trichlorobenzene 0.431 J 0.230 1.00
1,2,4-Trichlorobenzene U 0.481 1.00
1,1,1-Trichloroethane U 0.149 1.00
1,1,2-Trichloroethane U 0.158 1.00
Trichloroethene U 0.190 1.00
Trichlorofluoromethane U 0.160 5.00
1,2,3-Trichloropropane U 0.237 2.50
1,2,4-Trimethylbenzene U 0.322 1.00
1,3,5-Trimethylbenzene 0.112 J 0.104 1.00
Vinyl chloride U 0.234 1.00
o-Xylene U 0.174 1.00
m&p-Xylenes U 0.430 2.00
(S) Toluene-d8 97.8 80.0-120
(S) 4-Bromofluorobenzene 107 77.0-126
(S) 1,2-Dichloroethane-d4 99.7 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3602819-1 12/12/20 08:27
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Acetone 25.0 25.3 101 19.0-160
Acrolein 25.0 34.2 137 10.0-160
Acrylonitrile 25.0 25.7 103 55.0-149
Benzene 5.00 4.62 92.4 70.0-123
Bromobenzene 5.00 4.78 95.6 73.0-121
Bromodichloromethane 5.00 4.69 93.8 75.0-120
Bromoform 5.00 5.51 110 68.0-132
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:12 20 of 32
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 20 of 32
ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1590868
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1293432-01,03,04,05,06
Laboratory Control Sample (LCS)
(LCS) R3602819-1 12/12/20 08:27
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
Bromomethane 5.00 4.62 92.4 10.0-160
n-Butylbenzene 5.00 5.02 100 73.0-125
sec-Butylbenzene 5.00 4.39 87.8 75.0-125
tert-Butylbenzene 5.00 3.88 77.6 76.0-124
Carbon tetrachloride 5.00 4.57 91.4 68.0-126
Chlorobenzene 5.00 4.80 96.0 80.0-121
Chlorodibromomethane 5.00 4.86 97.2 77.0-125
Chloroethane 5.00 4.75 95.0 47.0-150
Chloroform 5.00 4.73 94.6 73.0-120
Chloromethane 5.00 4.53 90.6 41.0-142
2-Chlorotoluene 5.00 4.73 94.6 76.0-123
4-Chlorotoluene 5.00 4.54 90.8 75.0-122
1,2-Dibromo-3-Chloropropane 5.00 5.89 118 58.0-134
1,2-Dibromoethane 5.00 4.81 96.2 80.0-122
Dibromomethane 5.00 4.57 91.4 80.0-120
1,2-Dichlorobenzene 5.00 5.36 107 79.0-121
1,3-Dichlorobenzene 5.00 4.73 94.6 79.0-120
1,4-Dichlorobenzene 5.00 4.86 97.2 79.0-120
Dichlorodifluoromethane 5.00 4.55 91.0 51.0-149
1,1-Dichloroethane 5.00 4.86 97.2 70.0-126
1,2-Dichloroethane 5.00 4.64 92.8 70.0-128
1,1-Dichloroethene 5.00 4.74 94.8 71.0-124
cis-1,2-Dichloroethene 5.00 4.82 96.4 73.0-120
trans-1,2-Dichloroethene 5.00 5.16 103 73.0-120
1,2-Dichloropropane 5.00 4.51 90.2 77.0-125
1,1-Dichloropropene 5.00 4.48 89.6 74.0-126
1,3-Dichloropropane 5.00 4.95 99.0 80.0-120
2,2-Dichloropropane 5.00 5.06 101 58.0-130
Di-isopropyl ether 5.00 5.02 100 58.0-138
Ethylbenzene 5.00 5.08 102 79.0-123
Hexachloro-1,3-butadiene 5.00 6.15 123 54.0-138
Isopropylbenzene 5.00 5.47 109 76.0-127
p-Isopropyltoluene 5.00 4.99 99.8 76.0-125
2-Butanone (MEK)25.0 22.8 91.2 44.0-160
Methylene Chloride 5.00 4.75 95.0 67.0-120
4-Methyl-2-pentanone (MIBK) 25.0 26.2 105 68.0-142
Methyl tert-butyl ether 5.00 5.11 102 68.0-125
Naphthalene 5.00 7.52 150 54.0-135 J4
n-Propylbenzene 5.00 5.06 101 77.0-124
Styrene 5.00 5.26 105 73.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 21 of 32
ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1590868
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1293432-01,03,04,05,06
Laboratory Control Sample (LCS)
(LCS) R3602819-1 12/12/20 08:27
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
1,1,1,2-Tetrachloroethane 5.00 5.77 115 75.0-125
1,1,2,2-Tetrachloroethane 5.00 4.90 98.0 65.0-130
Tetrachloroethene 5.00 4.92 98.4 72.0-132
Toluene 5.00 4.53 90.6 79.0-120
1,2,3-Trichlorobenzene 5.00 7.03 141 50.0-138 J4
1,2,4-Trichlorobenzene 5.00 7.30 146 57.0-137 J4
1,1,1-Trichloroethane 5.00 4.84 96.8 73.0-124
1,1,2-Trichloroethane 5.00 5.08 102 80.0-120
Trichloroethene 5.00 4.31 86.2 78.0-124
Trichlorofluoromethane 5.00 4.75 95.0 59.0-147
1,2,3-Trichloropropane 5.00 4.89 97.8 73.0-130
1,2,4-Trimethylbenzene 5.00 4.86 97.2 76.0-121
1,3,5-Trimethylbenzene 5.00 4.55 91.0 76.0-122
Vinyl chloride 5.00 4.72 94.4 67.0-131
o-Xylene 5.00 5.37 107 80.0-122
m&p-Xylenes 10.0 9.63 96.3 80.0-122
(S) Toluene-d8 103 80.0-120
(S) 4-Bromofluorobenzene 107 77.0-126
(S) 1,2-Dichloroethane-d4 102 70.0-130
L1295985-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1295985-01 12/12/20 11:57 • (MS) R3602819-3 12/12/20 13:16 • (MSD) R3602819-4 12/12/20 13:37
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Acetone 25.0 U 32.8 25.9 131 104 1 10.0-160 23.5 35
Acrolein 25.0 U 101 85.2 404 341 1 10.0-160 J5 J5 17.0 39
Acrylonitrile 25.0 U 31.0 24.0 124 96.0 1 21.0-160 25.5 32
Benzene 5.00 U 4.20 3.64 84.0 72.8 1 17.0-158 14.3 27
Bromobenzene 5.00 U 4.45 3.54 89.0 70.8 1 30.0-149 22.8 28
Bromodichloromethane 5.00 U 4.71 4.20 94.2 84.0 1 31.0-150 11.4 27
Bromoform 5.00 U 4.95 4.16 99.0 83.2 1 29.0-150 17.3 29
Bromomethane 5.00 U 3.57 2.95 71.4 59.0 1 10.0-160 19.0 38
n-Butylbenzene 5.00 U 5.03 4.01 101 80.2 1 31.0-150 22.6 30
sec-Butylbenzene 5.00 U 4.48 3.32 89.6 66.4 1 33.0-155 J3 29.7 29
tert-Butylbenzene 5.00 U 3.98 3.09 79.6 61.8 1 34.0-153 25.2 28
Carbon tetrachloride 5.00 U 4.37 3.99 87.4 79.8 1 23.0-159 9.09 28
Chlorobenzene 5.00 U 4.90 4.02 98.0 80.4 1 33.0-152 19.7 27
Chlorodibromomethane 5.00 U 5.18 4.38 104 87.6 1 37.0-149 16.7 27
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1590868
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1293432-01,03,04,05,06
L1295985-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1295985-01 12/12/20 11:57 • (MS) R3602819-3 12/12/20 13:16 • (MSD) R3602819-4 12/12/20 13:37
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Chloroethane 5.00 U 3.84 3.36 76.8 67.2 1 10.0-160 13.3 30
Chloroform 5.00 U 4.85 4.21 97.0 84.2 1 29.0-154 14.1 28
Chloromethane 5.00 U 3.00 2.71 60.0 54.2 1 10.0-160 10.2 29
2-Chlorotoluene 5.00 U 4.49 3.45 89.8 69.0 1 32.0-153 26.2 28
4-Chlorotoluene 5.00 U 4.45 3.37 89.0 67.4 1 32.0-150 27.6 28
1,2-Dibromo-3-Chloropropane 5.00 U 6.26 4.71 125 94.2 1 22.0-151 28.3 34
1,2-Dibromoethane 5.00 U 5.37 4.22 107 84.4 1 34.0-147 24.0 27
Dibromomethane 5.00 U 4.88 3.98 97.6 79.6 1 30.0-151 20.3 27
1,2-Dichlorobenzene 5.00 0.191 5.87 4.26 114 81.4 1 34.0-149 J3 31.8 28
1,3-Dichlorobenzene 5.00 0.130 4.93 3.64 96.0 70.2 1 36.0-146 J3 30.1 27
1,4-Dichlorobenzene 5.00 U 5.66 3.97 113 79.4 1 35.0-142 J3 35.1 27
Dichlorodifluoromethane 5.00 U 3.72 3.51 74.4 70.2 1 10.0-160 5.81 29
1,1-Dichloroethane 5.00 U 4.49 4.08 89.8 81.6 1 25.0-158 9.57 27
1,2-Dichloroethane 5.00 U 4.90 3.81 98.0 76.2 1 29.0-151 25.0 27
1,1-Dichloroethene 5.00 U 3.90 3.40 78.0 68.0 1 11.0-160 13.7 29
cis-1,2-Dichloroethene 5.00 U 4.59 4.01 91.8 80.2 1 10.0-160 13.5 27
trans-1,2-Dichloroethene 5.00 U 3.93 3.47 78.6 69.4 1 17.0-153 12.4 27
1,2-Dichloropropane 5.00 U 4.40 3.79 88.0 75.8 1 30.0-156 14.9 27
1,1-Dichloropropene 5.00 U 3.53 3.43 70.6 68.6 1 25.0-158 2.87 27
1,3-Dichloropropane 5.00 U 5.42 4.22 108 84.4 1 38.0-147 24.9 27
2,2-Dichloropropane 5.00 U 4.76 4.19 95.2 83.8 1 24.0-152 12.7 29
Di-isopropyl ether 5.00 U 5.24 4.44 105 88.8 1 21.0-160 16.5 28
Ethylbenzene 5.00 U 4.74 4.15 94.8 83.0 1 30.0-155 13.3 27
Hexachloro-1,3-butadiene 5.00 U 4.93 3.83 98.6 76.6 1 20.0-154 25.1 34
Isopropylbenzene 5.00 U 4.07 3.81 81.4 76.2 1 28.0-157 6.60 27
p-Isopropyltoluene 5.00 U 4.97 3.70 99.4 74.0 1 30.0-154 J3 29.3 29
2-Butanone (MEK)25.0 U 31.2 22.5 125 90.0 1 10.0-160 J3 32.4 32
Methylene Chloride 5.00 U 4.26 3.74 85.2 74.8 1 23.0-144 13.0 28
4-Methyl-2-pentanone (MIBK) 25.0 U 32.6 23.5 130 94.0 1 29.0-160 J3 32.4 29
Methyl tert-butyl ether 5.00 U 5.62 4.56 112 91.2 1 28.0-150 20.8 29
Naphthalene 5.00 U 5.97 4.93 119 98.6 1 12.0-156 19.1 35
n-Propylbenzene 5.00 0.103 3.94 3.43 76.7 66.5 1 31.0-154 13.8 28
Styrene 5.00 U 4.23 4.01 84.6 80.2 1 33.0-155 5.34 28
1,1,1,2-Tetrachloroethane 5.00 U 5.49 4.19 110 83.8 1 36.0-151 26.9 29
1,1,2,2-Tetrachloroethane 5.00 U 5.25 4.01 105 80.2 1 33.0-150 26.8 28
Tetrachloroethene 5.00 U 4.10 3.62 82.0 72.4 1 10.0-160 12.4 27
Toluene 5.00 U 4.18 3.56 83.6 71.2 1 26.0-154 16.0 28
1,2,3-Trichlorobenzene 5.00 0.528 4.97 4.40 88.8 77.4 1 17.0-150 12.2 36
1,2,4-Trichlorobenzene 5.00 U 5.43 4.59 109 91.8 1 24.0-150 16.8 33
1,1,1-Trichloroethane 5.00 U 4.56 4.06 91.2 81.2 1 23.0-160 11.6 28
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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Excel Civil & Environmental Associates 22117 L1293432 12/15/20 17:16 23 of 32
ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1590868
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1293432-01,03,04,05,06
L1295985-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1295985-01 12/12/20 11:57 • (MS) R3602819-3 12/12/20 13:16 • (MSD) R3602819-4 12/12/20 13:37
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
1,1,2-Trichloroethane 5.00 U 5.70 4.36 114 87.2 1 35.0-147 26.6 27
Trichloroethene 5.00 17.7 21.4 21.4 74.0 74.0 1 10.0-160 0.000 25
Trichlorofluoromethane 5.00 U 4.49 4.16 89.8 83.2 1 17.0-160 7.63 31
1,2,3-Trichloropropane 5.00 U 5.76 4.13 115 82.6 1 34.0-151 J3 33.0 29
1,2,4-Trimethylbenzene 5.00 U 4.83 3.45 96.6 69.0 1 26.0-154 J3 33.3 27
1,3,5-Trimethylbenzene 5.00 0.115 3.92 3.17 76.1 61.1 1 28.0-153 21.2 27
Vinyl chloride 5.00 U 3.42 3.07 68.4 61.4 1 10.0-160 10.8 27
o-Xylene 5.00 U 4.32 4.20 86.4 84.0 1 45.0-144 2.82 26
m&p-Xylenes 10.0 U 9.29 7.53 92.9 75.3 1 43.0-146 20.9 26
(S) Toluene-d8 104 96.9 80.0-120
(S) 4-Bromofluorobenzene 95.9 100 77.0-126
(S) 1,2-Dichloroethane-d4 102 96.8 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1591724
Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1293432-02
Method Blank (MB)
(MB) R3603567-2 12/14/20 22:12
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acetone U 11.3 50.0
Acrolein U 2.54 50.0
Acrylonitrile U 0.671 10.0
Benzene U 0.0941 1.00
Bromobenzene U 0.118 1.00
Bromodichloromethane U 0.136 1.00
Bromoform U 0.129 1.00
Bromomethane U 0.605 5.00
n-Butylbenzene U 0.157 1.00
sec-Butylbenzene U 0.125 1.00
tert-Butylbenzene U 0.127 1.00
Carbon tetrachloride U 0.128 1.00
Chlorobenzene U 0.116 1.00
Chlorodibromomethane U 0.140 1.00
Chloroethane U 0.192 5.00
Chloroform U 0.111 5.00
Chloromethane U 0.960 2.50
2-Chlorotoluene U 0.106 1.00
4-Chlorotoluene U 0.114 1.00
1,2-Dibromo-3-Chloropropane U 0.276 5.00
1,2-Dibromoethane U 0.126 1.00
Dibromomethane U 0.122 1.00
1,2-Dichlorobenzene U 0.107 1.00
1,3-Dichlorobenzene U 0.110 1.00
1,4-Dichlorobenzene U 0.120 1.00
Dichlorodifluoromethane U 0.374 5.00
1,1-Dichloroethane U 0.100 1.00
1,2-Dichloroethane U 0.0819 1.00
1,1-Dichloroethene U 0.188 1.00
cis-1,2-Dichloroethene U 0.126 1.00
trans-1,2-Dichloroethene U 0.149 1.00
1,2-Dichloropropane U 0.149 1.00
1,1-Dichloropropene U 0.142 1.00
1,3-Dichloropropane U 0.110 1.00
2,2-Dichloropropane U 0.161 1.00
Di-isopropyl ether U 0.105 1.00
Ethylbenzene U 0.137 1.00
Hexachloro-1,3-butadiene U 0.337 1.00
Isopropylbenzene U 0.105 1.00
p-Isopropyltoluene U 0.120 1.00
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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