WS-3179_9211_CA_MRP_20210617

Received: 6/25/2021

TABLE OF CONTENTS 

EXECUTIVE SUMMARY ....................................................................................................... 1 
1.0 FACILITY INFORMATION ............................................................................................. 2 
2.0 INTRODUCTION .......................................................................................................... 2 
3.0 SITE HISTORY .............................................................................................................. 3 
4.0    RISK CHARACTERIZATION .......................................................................................... 7 
5.0 SITE GEOLOGY AND HYDROGEOLOGY ....................................................................... 8 
5.1 SITE SOILS & GEOLOGY ................................................................................................. 8 
6.0 SOIL SAMPLING & RESULTS ....................................................................................... 9 
6.1 PREVIOUS SOIL ASSESSMENT DATA SUMMARY................................................................... 9 
6.2    RECENT SOIL ASSESSMENT AT NEW MONITORING WELLS .................................................. 10 
6.3 EXTENT OF SOIL CONTAMINATION ................................................................................. 11 
7.0 GROUNDWATER INVESTIGATION ............................................................................ 12 
7.1 GROUNDWATER FLOW DIRECTION ................................................................................ 12 
7.2 FREE‐PHASE PETROLEUM PRODUCT ............................................................................... 13 
7.3 GROUNDWATER SAMPLING & LABORATORY RESULTS ........................................................ 14 
7.4 EXTENT OF GROUNDWATER CONTAMINATION ................................................................. 14 
7.5 VERTICAL EXTENT OF DISSOLVED HYDROCARBONS ............................................................ 15 
7.6 REMEDIATION SYSTEM OPERATIONS & MAINTENANCE ...................................................... 16 
8.0 MNA & SOURCE DEPLETION .................................................................................... 16 
8.1 SOIL CONTAMINANT MASS CALCULATIONS ..................................................................... 16 
8.2 GROUNDWATER – TOTAL MASS OF CONTAMINANT .......................................................... 17 
9.0 SUMMARY AND RECOMMENDATIONS ................................................................... 18 
10.0 STATEMENTS & CERTIFICATIONS ......................................................................... 21 

Page I
TABLE OF CONTENTS  
(Continued) 

FIGURES: 

1. Topographic Map 
2. Site Map of Former UST Area 
3. Site Map of Entire Remediation Area 
4. Potentiometric Surface Map (09/01/2020) 
5. Free‐Phase Product Map (09/01/2020) 
6. Benzene Isoconcentration Map (09/01/2020) 
7. Naphthalene Isoconcentration Map (09/01/2020) 

TABLES: 

1. UST Information (pg.3) 
2. Risk‐Based Results for Soil Samples 2014 
3. Monitoring and Recovery Well Construction Details 
4. Groundwater Elevation Data  
5. Historical Summary of Free‐Phase Product Thickness 
6. Groundwater Analytical Results 

GRAPHS: 

1. MW‐2:  Free‐Product Thickness vs. GW Elevation  
2. MW‐19:  Free‐Product Thickness vs. GW Elevation  
3. MW‐20:  Free‐Product Thickness vs. GW Elevation  

APPENDICES: 

A. NC DEQ Letter dated April 4, 2016 
B. 1994 CSA Cross‐Sections  
C. Standard Field Procedures 
D. Table of Soil Laboratory Data (1992‐1994)  
E. 1994 Soil TPH Contour Map 
F. Well Construction Records for RW‐7, RW‐8, and RW‐9 
G. Groundwater Laboratory Report – September 2020 
H. Soil Contaminant Mass Calculation 
I. Groundwater Contaminant Mass Calculations 

Page II 
Acronyms 

BLS ................... Below Land Surface  
BTEX  ................ Benzene, Toluene, Ethylbenzene, & Xylenes 
CFR ................... Code of Federal Regulations  
CSA ................... Comprehensive Site Assessment 
CAP .................. Corrective Action Plan 
DEQ .................. Department of Environment Quality 
DRO  ................. Diesel Range Organics 
EFA  .................. Elastic Fabrics of America 
EDB  ................. Ethylene Di‐Bromide 
GRO  ................. Gasoline range Organics 
GCLs ................. Gross Contaminant Levels 
LSA  .................. Limited Site Assessment 
MADEP ............. Massachusetts Department of Environmental Protection 
MSCC ............... Maximum Soil Contaminant Concentration 
MTBE ............... Methyl Tertiary Butyl Ether  
µg/L .................. Micrograms per Liter 
mg/kg ............... Milligrams per kilogram 
MMPE .............. Mobile Multi‐Phase Extraction  
MW .................. Monitoring Well 
NPDES .............. National Pollutions Discharge Elimination System 
NCAC ................ North Carolina Administrative Code 
O&M ................ Operations and Maintenance  
OWS  ................ Oil Water Separator 
OVA .................. Organic Vapor Analyzer  
PPM ................. Parts Per Million 
PVC .................. Poly‐Vinyl Chloride 
QA/QC .............. Quality Assurance / Quality Control 
SCFM ................ Standard Cubic Feet per Minute 
SVE ................... Soil Vapor Extraction 
SW .................... Water Supply Well  
UST ................... Underground Storage Tank 
US EPA ............. United States Environmental Protection Agency 
VOCs  ............... Volatile Organic Compounds 
VPH  ................. Volatile Petroleum Hydrocarbons 
WSRO ............... Winston‐Salem Regional Office 

Page III 
Elastic Fabrics of America – Monitoring Report 1
Pyramid Project #2020-165 06/17/2021
CAP PERFORMANCE REPORT 
ELASTIC FABRICS OF AMERICA 
EXECUTIVE SUMMARY 

On behalf of Elastic Fabrics of America (EFA), Pyramid Environmental & Engineering, P.C. 
(Pyramid) has completed the CAP Performance Report for the EFA facility located at 3112 
Pleasant Garden Road, Greensboro, North Carolina. Pyramid began working for EFA in 2014, 
and transferred the environmental project from the previous consultant to Pyramid. The 
transfer included meetings with Guilford County, evaluation of the large volume of previous 
work, and pre‐approval of the project scope of work by the NC Department of Environmental 
Quality (NCDEQ).  The DEQ regulatory incident number is 9211. 

The Comprehensive Site Assessment (CSA) was submitted in 1994 and provided a basic outline 
of the petroleum contamination at the site. The geology of the site is important to the 
movement of petroleum hydrocarbons in the weathered regolith (saprolite) which was 
encountered to a depth of about 50 feet. The depth to water in the source area has fluctuated 
over the years from 15 to 25 feet below land surface (BLS). The groundwater gradient is 
approximately 0.012 feet/foot and the average hydraulic conductivity in the surficial aquifer 
was 29.9 feet per year. The migration of petroleum constituents is occurring mostly in the 
upper saturated zone and dissolved petroleum compounds have not migrated into the deeper 
zone as demonstrated by the concentrations in VE‐1. The GW flow direction is to the northeast.  

The Corrective Action Plan (CAP) was prepared in 1995‐1996 and implemented in 1999‐2000. 
The remediation system included six active groundwater recovery wells and one soil‐vapor 
extraction (SVE) well, RW‐1. The remediation system has operated for 17 years.  

The 2012 receptor survey update found two active residential supply wells within 800 feet. The 
area surrounding the site is primarily industrial. Properties within 1,500 feet of the site have 
access to municipal water.  

Analytical results indicated that petroleum groundwater contamination is present on the 
subject property. The perimeter monitoring wells to the north and south do not exceed the 2L 
standards. Perimeter wells to the east and west show concentrations of petroleum. Dissolved 
petroleum concentrations do not exceed Gross Contaminant Levels (GCLs) at the site.  

The remediation system operations will be discussed in a future CAP Performance Report.  
During the operation of the system the treated groundwater is discharged to the City of 
Greensboro sanitary sewer system under Special Discharge Permit #S2044.  

On September 1, 2020, groundwater and product gauging detected free‐phase petroleum 
product in MW‐19 (0.04 feet) and MW‐20 (0.58 feet). The reduction of free‐product thickness is 
due to the seasonal, high water table. When water levels are high, free‐product thickness is low 
and when water levels are low, free‐product thickness is greater.  

The last free product check was completed on March 29, 2021.  No free product was detected 
in the monitoring wells.  As requested by the NCDEQ, the remediation system was winterized 
and shut down on the same day (March 29, 2021). 
Elastic Fabrics of America – Monitoring Report 2
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1.0 FACILITY INFORMATION 

 Site Name:    Elastic Fabrics of America  
 Location:    3112 Pleasant Garden Road, Greensboro, NC 27406 
 Topographic Map:  See Figure 1  
 Site Detail Maps:  See Figure 2 & Figure 3  
 Groundwater Incident No.: 9211 
 UST Owner/Operator:  Elastic Fabrics of America   
 Active USTs:    The Fuel Oil USTs were removed in 1992 
 Property Owner:  Elastic Fabrics of America 
 Consultant/Contractor: Pyramid Environmental & Engineering, P.C. 
 Release Information: 
a. Date Discovered:  August 1992 
b. Est. Qty. of Release:  Unknown (Reported to be > 10,000 gallons) 
c. Source of Release:  #2 Fuel Oil USTs 
ALL OF THE USTs have been removed  
d. UST Size/Contents: See Table 1 (Page 3)     

All fuel oil USTs have been removed from the facility. There is a fuel oil AST 
(20,000‐gallon) located near the remediation system which is used to store 
backup fuel. The facility uses natural gas as the primary fuel source.  

e. GPS Location: Google Maps GPS / Former UST Basin 
f. Latitude/Longitude: N. Lat.  36.026416⁰  / W. Long.  ‐79.772525⁰ 

Elastic Fabrics of America (EFA) is the leading manufacturer of warp knitted textile goods, 
proudly Made in the USA. The EFA facility is an active business enterprise making specialty 
fabrics mostly used in the garment industry. The facility no longer stores fuel in underground 
tanks, and the business does not have any petroleum underground storage tanks (USTs).  

2.0 INTRODUCTION 

On behalf of Elastic Fabrics of America, Pyramid Environmental & Engineering, P.C. (Pyramid) 
has completed this Monitoring Report for the EFA facility. The subject property is located at 
3112 Pleasant Garden Road, Greensboro, North Carolina. The location of the site is shown on 
Figure 1, a portion of the Greensboro USGS topographic map. The site map showing the former 
UST locations is presented as Figure 2, and the site map showing the entire project/remediation 
area is presented as Figure 3. The findings and recommendations resulting from the monitoring 
period from January to June 2019 are presented in this report.  
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The EFA facility is an operating textile manufacturing plant that was constructed in the early 
1970s. Two additions have been constructed at the plant since its original construction. Before 
1970 the site was farmland or wooded and undeveloped. Table 1 includes an inventory of the 
USTs that were removed, their former contents, installation dates, and closure dates.   

Table 1 
Underground Storage Tank Information 

Tank No. 
Installation 
Date 
Size in 
Gallons 
Tank 
Dimensions 

Last 
Contents 
Date 
Permanently 
Closed 
1 05/04/1971 30,000 10.5 ft. x 46.5 ft. #2 fuel oil 08/20/1992 
2 05/04/1971 30,000 10.5 ft. x 46.5 ft. #2 fuel oil 08/20/1992 
3 05/04/1971 30,000 10.5 ft. x 46.5 ft. #2 fuel oil 08/20/1992 
4 05/04/1971 30,000 10.5 ft. x 46.5 ft. #2 fuel oil 08/20/1992 

As indicated in Table 1, four 30,000‐gallon #2 fuel oil tanks were installed at the site in May 
1971 and removed and permanently closed in August 1992. The facility was connected to 
natural gas at that time. Currently, the site does not have any active petroleum USTs. The USTs 
were replaced with one 20,000‐gallon aboveground storage tank (AST) which is used as backup 
fuel for the natural gas service. The fuel oil AST is located in a secondary containment structure. 
The former locations of the USTs are shown on Figure 2. 

3.0 SITE HISTORY 

The following is a summary of previous environmental assessment activities that have been 
performed at the site. The information was obtained from reports prepared by Triangle 
Environmental and Kleinfelder. In 1994, Triangle Environmental conducted a Comprehensive 
Site Assessment (CSA) at the EFA facility. As part of the CSA, an interview was conducted with 
Mr. Joe Fields, Maintenance Supervisor at that time, regarding the history of the facility. 

Mr. Fields’ employment at EFA dates back to the initial start‐up of the facility in the early 1970s. 
According to Mr. Fields, there were problems with the two original heating oil USTs located in 
the area of TE‐2 (Figure 2) prior to the start‐up of the facility in 1971. Apparently, over the 
period of one to two months, the UST systems were checked for leaks before it was discovered 
that the tank systems were leaking. Mr. Fields estimated that as much as 20,000 gallons of fuel 
was released during this time. Fuel oil was presumably circulating by pumping to fuel the 
machinery and a pressurized piping leak may have been the reason for such a large fuel release. 
During the same period, a fish kill was observed in a small pond located north of the facility, 
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downgradient from the EFA fuel storage area. According to Mr. Fields, the Environmental 
Protection Agency (EPA) was notified when the fish kill was discovered and responded to 
provide some level of immediate cleanup. 

The original USTs and product lines were reportedly replaced by the general contractor 
constructing the facility. As indicated in Table 1, four 30,000‐gallon #2 fuel oil tanks were 
installed in May 1971. Mr. Fields also remembered that a test well was installed at that time 
and free product (heating oil) was recovered; however, there was no mention of a well in the 
closure report and there is no indication of where this initial recovery well was located.  

In 1978, the tanks were apparently damaged by heavy equipment operating above the USTs in 
the area of TE‐2 (Figure 2); the top of the tanks were only 2 feet below grade. According to Mr. 
Fields, the USTs were emptied, and the EPA was notified. Under EPA approval, the tanks were 
repaired in‐place by re‐welding a seam from the inside.   

In August of 1992, the four fuel oil USTs were removed from the EFA facility by SPATCO.  Each 
of the tanks was 30,000 gallons in capacity and stored #2 fuel oil for use on‐site. During the UST 
closure procedures, a release of fuel oil was identified in the TE‐2 area by field evidence and 
laboratory confirmation by soil analysis. There was conflicting data whether a release had 
occurred in the TE‐1 area. SPATCO did not observe any holes in the tanks; however, no 
comments were made about possible fuel distribution line releases. Based on the current 
investigation, the former USTs from the TE‐2 area appear to be the main source of 
contamination; however, soil and groundwater contamination are present in the TE‐1 area.  It is 
likely that the TE‐1 UST systems also contributed to the petroleum contamination at EFA.  

Records indicate 250 cubic yards of petroleum contaminated soil were excavated during the 
removal of two USTs in the TE‐2 area in 1992. The excavation was limited by water and sewer 
mains to the south, natural gas lines to the west, and process piping to the east. The building 
and aboveground tanks limited the excavation to the north. These site features are shown on 
Figure 2. The excavated petroleum contaminated soil was temporarily stored on site and, on 
October 13, 1993, was transported to Cunningham Brick Company, Inc. of Lexington, NC for 
remediation. 

In 1992, the Guilford County Department of Emergency Services and the Winston‐Salem 
Regional Office (WSRO) of the North Carolina Department of Environmental Quality (DEQ), 
were notified of an apparent release of #2 heating oil during the removal and permanent 
closure of the USTs.  On October 20, 1992, a Notice of Violation (NOV) was issued to EFA by the 
DEQ requiring additional assessment. Subsequent investigations identified groundwater 
contamination at the site, which was reported to the DEQ. On January 28, 1994, a thin layer of 
free‐product was observed in monitoring well MW‐2. Since that time, free‐product has been 
intermittently observed in MW‐2 and several other monitoring wells at the site. 
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Additional assessment after the fuel oil release was completed between 1992 and the late 
1990s. The original Comprehensive Site Assessment (CSA) for the site was submitted in 1994 
and provided a basic outline of the petroleum contamination at the site. The geology of the site 
is important to the movement of petroleum hydrocarbons in the weathered regolith (saprolite) 
which was encountered to a depth of about 50 feet.  

The depth to groundwater in the source area has fluctuated in the source area over the years 
from 15 to 25 feet below land surface (BLS).  When water levels are high, free‐product 
thickness is low and when water levels are low, free‐product thickness is greater.  

The groundwater gradient is approximately 0.012 feet/foot and the average hydraulic 
conductivity in the surficial aquifer was reported in the Corrective Action Plan (CAP) Addendum 
to be approximately 29.9 feet per year. The migration of dissolved petroleum constituents is 
occurring mostly in the upper saturated zone and dissolved petroleum compounds have not 
migrated into the deeper zone, as demonstrated by the concentrations in VE‐1. The 
groundwater flow direction at the site is to the northeast.  

In 1995, a Corrective Action Plan (CAP), was submitted but initially was not approved due to the 
lack of sufficient aquifer conductivity data. The aquifer testing was completed in 1996 and 
reported in a CAP Addendum. The approved CAP pump‐and‐treat groundwater remediation 
system was installed in early 2000 and was started up on June 15, 2000. The planned 
remediation system was originally submitted with 17 proposed groundwater recovery wells 
(Triangle 1996). This aggressive plan was not the approved final design, and 6 recovery wells 
were installed. The CAP included three recovery wells (RW‐1, RW‐2, and RW‐3) in the source 
area (TE‐2 UST area). In addition, three additional groundwater recovery wells (RW‐4, RW‐5, 
and RW‐6) were installed to the northeast of the office buildings as a limiting action to recover 
groundwater at the northern boundary of the product and dissolved contaminant plume. The 
existing 6 recovery wells do not recover fuel oil contamination present in the area between 
RW‐1 and the northern extent of the plume near RW‐4.   

The groundwater treatment system consists of an oil/water separator, a diffused aeration tank, 
a totalizing flow meter, and discharge of the treated groundwater to the sanitary sewer.  There 
is one SVE well (RW‐1) connected to a low vacuum regenerative blower which removed some 
petroleum vapors from RW‐1. This soil vapor extraction (SVE) system was only marginally 
effective near RW‐1. Recovery wells RW‐1 through RW‐3 are currently operational. Recovery 
wells RW‐1 through RW‐3 are located in the source area and are operating to recover free‐
product and dissolved hydrocarbons. 

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Once remediation began for the site, the CAP monitoring schedule consisted of quarterly 
sampling of selected monitoring wells and annual sampling of other wells. Eventually the site 
graduated to a semi‐annual monitoring frequency. 

The remediation system is permitted to discharge treated groundwater to the City of 
Greensboro sewer system under Special Discharge Permit No. S2044. The permit requires the 
effluent from the groundwater treatment system to be sampled quarterly for laboratory 
analysis. Discharge Monitoring Reports (DMRs) are prepared as required on a quarterly basis by 
the City of Greensboro. System maintenance visits are conducted every month, monitoring flow 
from the totalizing flow meter.  

The CSA Addendum Report was completed and submitted by Pyramid to the NC DEQ in January 
2015. The CSA Addendum report summarized the results of the additional assessment pre‐
approved by the DEQ in 2014, the semi‐annual monitoring for 2014, and the remedial activities 
performed from July through December 2014. The groundwater analytical results indicated 
that, for the most part, the petroleum groundwater contamination was confined to the subject 
property. The concentrations in the perimeter monitoring wells to the north and south of the 
source area did not have levels that exceeded the 2L Standards. Perimeter wells to the west 
and east still showed concentrations of petroleum. Dissolved groundwater concentrations were 
not detected above Gross Contaminant Levels (GCLs) at the site.  

An Active Remediation Monitoring Report (ARM) was submitted by Pyramid on February 16, 
2016. The ARM Report summarized the results of the additional assessment pre‐approved by 
the DEQ in June 2015, the semi‐annual monitoring for the second half of 2015, and the 
remedial activities performed from July through December 2015. The October 2015 
groundwater analytical results indicated that, for the most part, the extent of petroleum 
groundwater contamination is confined to the subject property, with the exception of the area 
to the west of the source area (MW‐19). The perimeter monitoring wells to the north and south 
of the source area did not exceed the NCAC 2L Standards. Perimeter monitoring wells to the 
west and east of the source area still showed concentrations of petroleum that exceeded the 2L 
Standards. Dissolved groundwater concentrations were not detected above Gross Contaminant 
Levels (GCLs) at the site.   

On April 4, 2016, the NC DEQ issued a letter of receipt of the ARM Report dated February 16, 
2016. The letter states that the site risk had been reduced to an Intermediate status, Risk 
Ranking I‐165‐D, and that the priority of the site remediation should be to remove the free‐
product present at the site. A copy of the NC DEQ letter, dated April 4, 2016, is included as 
Appendix A. 

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4.0    RISK CHARACTERIZATION 

The most recent receptor survey information showed active water supply wells within 1,000 
feet of the site. Two active supply wells remain within 750 feet of the former UST location. 
Municipal water supply is available to properties within 1,500 feet of the source area and is in 
use at the subject property. The three private wells were sampled in 2013 and the results 
showed no detections of the targeted petroleum compounds. 

 The DEQ ranks the EFA site intermediate risk (I‐165‐D), and continued assessment and 
remediation is required.  

 The nearest surface water is a pond which is located approximately 2,000 feet to the 
north of the site. The location of the site relative to the pond is shown in Figure 1. 

 There are no designated wellhead protection areas within a 1,500‐foot radius of the 
site. 

 The EFA facility is located in the Piedmont Region of NC and, therefore, is not in the 
Coastal Plain. 

 All USTs previously used at the site were removed in 1992, and the movement of free‐
product prior to that time is subject to speculation. It is reasonable to assume that a 
large spill might migrate quickly to surface water through the stormwater drain system. 
This may have occurred during the leaks in the 1970s.  

 The shallow storm drains may have allowed some of the fuel oil to leak into the 
surrounding soft backfill material. This would have allowed petroleum hydrocarbons to 
seep in around the utilities when the release occurred in the 1970s. Once in the soil, this 
free‐product would remain in place for years. The monitoring wells that have historically 
shown the most petroleum contamination and free‐product are near the source area 
and near existing stormwater drains and utilities.  

 The surrounding area includes commercial, industrial, and residential land use. The 
residential land is use is primarily to the south and east of the subject property. The 
closest residential property is an apartment complex located approximately 400 feet to 
southeast of the source areas.    

The assessment and remediation of this intermediate risk site is required and will be completed 
as directed by the DEQ.   

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5.0 SITE GEOLOGY AND HYDROGEOLOGY 

Pyramid’s review of the 1985 Geologic Map of North Carolina yielded information concerning 
local geology and hydrogeology. Based on this review, the site is located in the Carolina Slate 
Belt of North Carolina. The surface geology consists of regional soils created by the weathering 
of underlying bedrock. This belt consists of heated and deformed volcanic and sedimentary 
rocks. It was the site of a series of oceanic volcanic islands about 550‐650 million years ago. This 
belt is known for its numerous abandoned gold mines and prospects. The bedrock in the area is 
described as Metamorphosed Granitic rocks; megacrystic with local hornblende, and the map 
symbol is €Zg. 

In general, the subsurface in the Piedmont of North Carolina is composed of soils, grading into 
saprolite, and weathered rock before encountering the bedrock (parent rock) at depth. In this 
area, the general profile consists of 40‐70 feet of soil and saprolite, 20‐30 feet of weathered 
rock, and then bedrock.  

Surface water and groundwater flow directions are generally controlled by topographic 
contours of landforms in the Piedmont, with flow occurring perpendicular to the contours from 
high to low elevations. Surface water run‐off from the subject property generally flows to the 
north from the UST area following ditches approximately 1,000 feet to an unnamed tributary to 
South Buffalo Creek. The tributary drains to a surface water pond that is located approximately 
2,500 feet north of the former UST area. South Buffalo Creek is located approximately 4,500 
feet north of the former UST area. The nearest surface water is a stormwater retention pond 
located approximately 130 feet south of the source area on the south side of Industrial Avenue. 

5.1 Site Soils & Geology 
The CSA reported that the soils at the site were graded during development in the early 1970s. 
Approximately 6 feet was removed from the southeast corner of the site and added to the 
northern property area to build the parking areas. The CSA described the site soil as primarily 
reddish clay to a depth of 5‐8 feet below land surface (BLS), changing to a mottled red, tan, and 
orange silt layer, and a sand layer at or near the water table at 18‐22 feet. The 1994 CSA soil 
cross‐sections are presented as Figures 2, 3, 3a, 3b, 3c in Appendix B.  

The 1994 CSA describes soils near the water table as having increased sand content in the 
capillary fringe zone (between 15 to 30 feet BLS). Pyramid observed higher organic vapors 
between 15 and 30 feet BLS during the 2014 drilling. This appears to be the zone where the 
water table has fluctuated up and down over time, and that petroleum is expected to migrate 
in the subsurface. The sand content in this zone is variable and may be acting to speed the 
migration downgradient within the petroleum hydrocarbon plume. The spills occurred in the 
1970s, which has allowed downgradient migration for the past 40+ years.  
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During the 2014 drilling and monitoring well installation, bedrock was not encountered to the 
maximum well depth of 85 feet below land surface (VE‐1).  

The depth to groundwater has fluctuated in the source area over the years from 15 to 25 feet 
below land surface (BLS).  When water levels are high the free‐product thickness is decreased, 
and when the water levels are low the free‐product thicknesses increase. This indicates that the 
free‐product is present in the “smear zone” between the high water level (15‐16 feet BLS) and 
the low water level (24‐25 feet BLS). 

6.0 SOIL SAMPLING & RESULTS 

The soil analytical data from the drilling in 2014, and a summary of the previous soil analytical 
data are discussed below. The standard field procedures used for this project are detailed in 
Appendix C.  

6.1 Previous Soil Assessment Data Summary 
In 2014, Pyramid reviewed soil data from the original UST Closure Report (1992) and the 1994 
CSA soil investigations. The CSA soil data included total petroleum hydrocarbon (TPH) analyses 
for gasoline range organics (GRO) and for Diesel Range Organics (DRO). The table of soil 
laboratory results from the UST closure work is presented in Appendix D.  

These CSA data showed a broad area of soil contamination at the site which appears to be 
related to petroleum movement in the subsurface. The following summary of the soil 
assessment data was provided in the CSA on page 8 (Triangle, 1994); 

“Soil contamination at the site appears to occur mainly within the zone of the fluctuating water 
table (see Figures 3b and 3c), except in the area surrounding TE‐2 where a thicker zone of soil 
contamination was identified. This suggests that the soil contamination is a result of adsorbed 
groundwater contaminants or that the contamination is residual phase contamination from the 
migrating of a non‐aqueous phase plume.” 

During the CSA work, several soil borings were installed to assess soil concentrations at points 
near or within the subsurface trenches associated with storm drains and the sanitary sewer 
conduits. These soil borings failed to identify soil contamination associated with surface spills in 
these areas, leading to the conclusion that the primary migration pathway was through 
subsurface migration. There must have been some migration in the stormwater drainage 
system to cause the fish kill reported in 1971. At the time of the CSA in 1994, no shallow soil 
impacts were identified near the storm drain system. 

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The CSA and CAP assessment data confirmed petroleum hydrocarbon migration in the soil and 
groundwater in the downgradient direction. While drilling VE‐1, Pyramid observed the presence 
of saprolite and some weathered rock, but no bedrock was encountered to a depth of 85 feet. 
The apparent flow zone from the drilling completed in 2014 is in the capillary fringe zone from 
15 to 30 feet BLS. 

6.2    Recent Soil Assessment at New Monitoring Wells 
Pyramid met with the DEQ and Guilford County to discuss the soil and groundwater assessment 
for EFA. Based on these discussions, Pyramid revised the pre‐approval to remove all of the soil 
borings that were proposed and only collect one soil sample at each of the six shallow 
monitoring well locations. The pre‐approval included one risk‐based and one TPH soil sample to 
be collected from each new monitoring well location.  

In July 2014, six (6) shallow monitoring wells (MW‐1A, MW‐16, MW‐17, MW‐18, MW‐19, and 
MW‐20) were installed using hollow‐stem augers. The locations of the new monitoring wells 
(MWs) are shown on Figure 3. Prior to each monitoring well installation, a direct push soil 
boring was completed to below the water table. The soil samples were collected using 5‐foot 
direct push macro‐core sampling sleeves. Pyramid screened the soils in the field and collected 6 
soil samples at a depth of 18‐20 feet BLS for laboratory analysis. Since the depth to 
groundwater was measured between 24 to 26 feet BLS, no deeper soil samples were collected 
for laboratory analysis. A portion of each soil sample collected was screened in the field using 
an organic vapor analyzer (OVA) and described on the field drilling record.  

The soil samples collected at a depth of 18‐20 feet from soil borings at MW‐1A, MW‐18, MW‐
19, and MW‐20 were analyzed using risk‐based analytical methods for fuel oil. These methods 
included Massachusetts Department of Environmental Protection (MADEP) Methods for 
volatile Petroleum Hydrocarbons (VPH) and Extractable Petroleum Hydrocarbons (EPH). In 
addition, these soil samples were analyzed using EPA Method 8260 for volatile organic 
compounds (VOCs), and using EPA Method 8270 for semi‐volatile organic compounds (SVOCs). 
The locations of the soil samples were collected in the area of the UST source primarily to 
assess whether concentrations exceed the residential or industrial/commercial Maximum Soil 
Contaminant Concentrations (MSCCs). The analytical results for the risk‐based laboratory 
results of soil are summarized on Table 2.  

In addition to the risk‐based soil analyses, total petroleum hydrocarbon (TPH) soil samples from 
the same intervals were submitted for laboratory analyses. The soil analyses for TPH included 
diesel range organics (DRO) analysis using EPA Method 3550/8015. Soil samples from MW‐16 
through MW‐20, and MW‐1A were analyzed for DRO at a depth of 18‐20 feet BLS.  

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The DRO analytical results showed petroleum hydrocarbon concentrations ranging from 3,930 
to 10,700 milligrams per kilogram (mg/kg) for diesel range organics (DRO). These soil 
concentrations show significant soil contamination in the capillary fringe and the area where 
the water table has moved up and down with rainfall recharge in the source area. This “smear 
zone” has been affected by petroleum as the water table has moved up and down within the 
surficial aquifer.  

At MW‐17 (downgradient of the source area) a specific Geoprobe™ core collected at about 23 
feet showed a hard, black oily layer just below the silty brown layer and above the tan sandy‐
silt layer. The brown layer above 23 feet showed little hydrocarbon contamination, and the 
sandy layer below 23 feet showed some petroleum contamination. This layer was also observed 
in MW‐18, MW‐19, and in MW‐20 at a depth of 18‐21 feet at the top of the tan sandy silt layer. 
This layer is significant as it appears to be the primary geologic layer where fuel oil 
contaminants are migrating.  Additional monitoring and remediation wells are needed to 
provide enough information to prepare an effective remediation plan for the EFA site.  

6.3 Extent of Soil Contamination 
The laboratory results for the CSA (1994) showed lower concentrations of petroleum 
contaminants in the upper surficial soils and greater concentrations below 15 feet in the soils. 
This indicates that the petroleum contaminants have migrated over the years, primarily in the 
sandy silt layer which started at 18‐20 feet in the source area and was found to be somewhat 
continuous in the downgradient direction. Additional soil borings or monitoring wells installed 
in the area between the source and RW‐4 would provide additional information concerning this 
migration and the lateral continuity of the sandy silt layer.  

The 2014 risk‐based and TPH data showed that there is still significant soil contamination in the 
former UST area, and that soil remediation in the capillary fringe and “smear zone” needs to be 
completed. The presence of free‐phase petroleum product (fuel oil) even in small amounts 
indicates that the source area requires additional cleanup to remove this source. The 1994 soil 
TPH concentration contour map is included in Appendix E. 

The depth to groundwater has fluctuated in the source area over the years from 15 to 25 feet 
below land surface (BLS).  When water levels are high, free‐product thickness is low and when 
water levels are low, free‐product thickness is greater. In MW‐1 A and MW‐20, the highest 
water level was at 15.66 feet BLS and the lowest water level was 25.64 feet.  This range of 
water level elevations has created a smear zone where free‐product bubbles adsorbed on the 
soil grains resides. The current water levels near 16 feet have “drowned” the free‐product so 
that is does not appear in the wells to the same degree that it does when water levels are 
lower. Median water level in the source area is 20.95 feet BLS. This demonstrates that the 
smear zone (between 15 and 25 feet BLS) contains fuel oil pockets that require remediation to 
complete regulatory closure for this site. 
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7.0 GROUNDWATER INVESTIGATION 

The groundwater investigations at the EFA facility started in 1993 and were summarized in the 
1994 CSA. Additional assessment was performed to complete the CAP Addendum and CSA 
Addendum. The existing groundwater treatment system has been in operation for over 17 
years with only short periods of down time. The groundwater concentrations over this 17‐year 
period have decreased in several monitoring wells, and others have remained constant. 
Additional monitoring wells for groundwater assessment were pre‐approved by the DEQ and 
installed in 2014. 

Based on the presence of significant amount of free product in the area where monitoring wells 
MW‐19 and MW‐20 are located, Pyramid recommended the installation of three additional 
recovery wells RW‐7, RW‐8, and RW‐9. The addition of the recovery wells should enhance the 
remediation system performance once they are connected and reduce the time and cost of site 
remediation. Pyramid and EFA have discussed these enhancements of the existing remediation 
system and agree that they are feasible and will speed the recovery of free‐product toward the 
remediation goal at the site. The recovery well information is as follows:  

RW‐7, RW‐8, and RW‐9: 
DATE OF DRILLING & INSTALLATION: June 27, 2017 
TYPE OF DRILL RIG: Hollow stem auger 
WELL DIAMETER: 4 inches  
TOTAL DEPTH: 40 feet 
SCREEN INTERVAL: 10‐40 feet 
WELL ELEVATION SURVEYED: June 29, 2017 

The well construction records for the three new recovery wells are included in Appendix F.  
Well construction data for all monitoring wells and recovery wells are included in Table 3.      
The locations of the monitoring wells are shown on Figures 2 and 3. The results of July 2019 
free‐product gauging, limited groundwater sampling and laboratory analyses are presented in 
the following sections.  

7.1 Groundwater Flow Direction 
The September 2020 groundwater sampling included the gauging and sampling of pre‐
approved wells in the source area and downgradient including MW‐1A, 7, 9, 13,16, 17, 19, 20, 
RW‐ 7, 8 & RW‐9. Monitoring well MW‐19 and MW‐20 and recovery wells RW‐7, RW‐8 and RW‐
9 were gauged for free product. The depth to free‐product and depth to groundwater data 
recorded in the field are included in Table 4. 

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Utilizing the calculated groundwater elevation data for the Type II monitoring wells, a 
potentiometric surface map was prepared for the site and is presented as Figure 4. Based on 
the estimated groundwater surface contours, the shallow groundwater flow is toward the 
northeast which is consistent with the historical maps presented in the previous remediation 
reports. 

In July 2019, the average groundwater gradient for the site was calculated to be 0.02844 feet 
per foot toward the northeast. The groundwater gradient is a principal factor in determining 
the rate of groundwater movement. 

7.2 Free‐Phase Petroleum Product 
The occurrence of free‐product at EFA has been relatively continuous throughout the history of 
the site. The first notations concerning free‐product were reported after a release of up to 
20,000 gallons in the early 1970s. The fuel oil release caused a fish kill in a downgradient pond, 
and some level of cleanup was completed by the EPA at that time. In 1978, the fuel oil tanks 
were damaged by a utility contractor and there was a reported second spill of up to 5,000 
gallons. The UST was repaired and returned to service in 1978. This initial release information 
suggests that a large amount of #2 fuel oil was released in the 1970s and that this fuel oil has 
been dispersing and degrading over the past 40 years.  

Previous reports do not present a total amount of free‐product recovered from the site. There 
is some mention in an early report of product bailing from MW‐2, but the amount was less than 
one gallon. Since fuel oil does not readily dissolve in the groundwater, this leads one to believe 
that the preponderance of the fuel oil released at the site remains in the subsurface. The 
present location of the free‐product measured in July 2019 is shown on Figure 5. 

Historically, several wells have shown free‐phase product over the past 12 years of monitoring. 
The primary wells which have routinely showed free‐product are MW‐2, MW‐3, MW‐7, MW‐9, 
and MW‐13. In 2013, 3.73 feet of free‐product was measured in MW‐13. During the June 2018 
sampling event, monitoring wells MW‐19 and MW‐20 showed free‐product levels of 0.02 feet 
and 0.04 feet, respectively. Three new recovery wells RW‐7, RW‐8, and RW‐9 did not show any 
measurable amount of free product on June 7, 2018.  A historical summary of the free‐phase 
petroleum product thicknesses is presented in Table 5. The reduced free product thickness is 
likely due to a seasonal‐high water table.   

In April 2016, in an effort to define the characteristics of free‐product at the site in relation to 
the groundwater elevation, a series of graphs to illustrate the fluctuations of free‐product 
thickness and groundwater elevations was prepared. The wells which historically showed levels 
of free‐product (MW‐2, MW‐19 and MW‐20) were examined. The graphs illustrate that when 
the groundwater elevation increases, the free‐product thickness (in feet) decreases. The graphs 
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are presented in the Graphs section of this report and show Free‐Product Thickness vs. 
Elevation over time in MW‐2, MW‐19, and MW‐20. The graph for MW‐2 does not contain data 
from the September 2020 sampling event because the well was not gauged as part of 
monitoring activities. 

The most recent elevation data (September 2020 data) showed slight increased water levels 
and slight increase in product levels as expected with historical data. The levels of free product 
are expected to exist in the area of the new recovery wells which are most likely not showing 
free product due to the current high, water levels. The depth to groundwater has fluctuated in 
the source area over the years from 15 to 25 feet below land surface (BLS).  When water levels 
are high, free‐product thickness is low and when water levels are low, free‐product thickness is 
greater.  

7.3 Groundwater Sampling & Laboratory Results 
On September 1, 2020, groundwater samples were collected from MW‐1A, 7, 9, 13, 16, 17, RW‐
7, 8 & RW‐9. The groundwater samples were collected for laboratory analysis using EPA 
Method 6200B. EPA Method 625 was not used as instructed by the NC DEQ. The monitoring 
wells were gauged for the depth to groundwater from the top of the casings. The wells were 
gauged using a properly decontaminated electric water/product level probe. Measurable free‐
product was detected in MW‐19 and MW‐20, and a petroleum sheen was detected in MW‐1A, 
7, 9, 16, RW‐7, 8, & RW‐9  

The groundwater samples were collected using disposable bailers, placed in laboratory 
prepared containers, packed in ice, and prepared for shipment to Pace Laboratories, 
Huntersville, NC for laboratory analysis. The current and historical groundwater analytical 
results are summarized in Table 6. 

7.4 Extent of Groundwater Contamination 
The compounds detected in the groundwater at EFA are typical of a #2 fuel oil petroleum 
release. The highest concentrations on the petroleum compounds were detected in and around 
the former TE‐2 UST excavation. Targeted petroleum compounds were also detected above 
laboratory detection limits in several perimeter monitoring wells leading to incomplete 
isoconcentration contours in the middle of the petroleum plume area. Additional perimeter 
monitoring wells are recommended to assess the area west and south of the measurable free 
product.  The following sections describe the presence of selected petroleum compounds in the 
dissolved hydrocarbon plume and discuss the orientation and apparent source of the EFA 
plume. Analytical data are discussed as they relate to the overall picture of the groundwater 
contamination at EFA. The September 2020 laboratory report and chain‐of‐custody are 
included in Appendix G.   
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Groundwater results for EFA are reported in micrograms per liter (µg/L). 

Benzene 
Most petroleum contaminants include the compounds benzene, toluene, ethylbenzene, and 
xylenes (BTEX). The BTEX compounds make up much of the fuel mixture dissolved in 
groundwater at release sites along with naphthalene and methyl‐naphthalene. Concentrations 
of benzene that exceed the NCAC 2L Groundwater Standard were detected in four of the 9 
monitoring wells that were sampled. MW‐7 contained a concentration of 4.8 µg/L of benzene, 
MW‐9 contained a concentration of 34.8 µg/L of benzene, MW‐16 contained a concentration of 
2.7 µg/L, and RW‐7 contained 3.1 µg/L of benzene. The locations of the monitoring wells are 
shown on Figure 2 and 3.  The benzene Isoconcentration map is presented as Figure 6. 

Naphthalene 
Concentrations of naphthalene that exceed the NCAC 2L Groundwater Standards were 
detected in all 9 of the monitoring wells that were sampled. Downgradient MW‐9 contained the 
highest concentration (697 g/l) and the wells downgradient of MW‐9 (MW‐11 and MW‐12 and 
MW‐15) have not been sampled since 2014. Pyramid recommends that these three wells be 
sampled in 2021 to assess the downgradient extent of naphthalene and other petroleum 
contaminants.  The concentrations of naphthalene are indicative of #2 fuel oil contamination.  
The naphthalene isoconcentration map is presented as Figure 7. The analyses using EPA 
Method 625 showed minor detections of other petroleum contaminants, with the major 
petroleum compounds being naphthalene and methylnaphthalenes. 

Chlorinated Compounds Detected in Groundwater 
The historical groundwater analyses at EFA have also detected low concentrations of 
chlorinated compounds over the NCAC 2L Groundwater Standards. Concentrations of 
trichloroethylene (TCE) and tetrachloroethylene (PCE) have been detected in some of the wells 
across the site.  No concentration of TCE was detected above the 2L Standard of 3.0 µg/L in the 
sampled monitoring wells. Concentrations of PCE were above the 2L Standard of 0.7 µg/L in 
seven of the nine wells sampled in September 2020, with the highest concentration in MW‐7 
(7.5 µg/L). Pyramid will continue to monitor for these compounds in annual sampling events. 

7.5 Vertical Extent of Dissolved Hydrocarbons 
As requested by the NC DEQ/Guilford County a new vertical extent well (VE‐1) was installed to a 
depth of 80 feet with a limited screened interval between 70 and 80 feet BLS. This vertical 
extent well was developed and sampled in 2014, and only very low detections of petroleum 
hydrocarbons were detected in this well. A concentration of 2.3 g/l benzene was detected, 
and naphthalene was below laboratory detection limits. The low concentration of benzene 
detected in VE‐1 in 2014, indicates possible minor “drag‐down” of contaminants during drilling.  
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The laboratory results of the groundwater samples collected from VE‐1 in May 2016 indicate 
that none of the targeted compounds were detected at concentrations that exceed the 
laboratory detection limits. The 2016 groundwater data confirm that the previous petroleum 
detections were most likely related to “drag‐down” during the well drilling process. VE‐1 was 
not sampled in July 2019 and September 2020.  

7.6 Remediation System Operations & Maintenance 
The remediation system operations will be discussed in a future CAP Performance Report.  
During the operation of the system the treated groundwater is discharged to the City of 
Greensboro sanitary sewer system under Special Discharge Permit #S2044.  

The depth to groundwater in the source area has fluctuated in the source area over the years 
from 15 to 25 feet below land surface (BLS).  When water levels are high, free‐product 
thickness is low and when water levels are low, free‐product thickness is greater. Pyramid 
recommends installing piping to the new recovery wells and pumping from these wells to 
reduce the water level and recover free‐product in the source area.  

The last free product check was completed on March 29, 2021.  No free product was detected 
in the monitoring wells in March 2021; however, the water levels were at all time high levels 
due to above average rainfall infiltration.  As requested by the NCDEQ, the remediation system 
was winterized and shut down on the same day (March 29, 2021). 

8.0 MNA & SOURCE DEPLETION 

Due to the onsite free‐phase petroleum product, this site is not suitable for solely Monitored 
Natural Attenuation (MNA) as a remedial strategy.  The groundwater cleanup goal for the site is 
to remove free‐product present at the site. On April 4, 2016, the NC DEQ issued a letter of 
receipt of the ARM Report dated February 16, 2016. The letter states that the site risk had been 
reduced to an Intermediate status, Risk Ranking I‐165‐D, and that the priority of the site 
remediation should be to remove the free‐product present at the site. 

8.1 Soil Contaminant Mass Calculations 
No soil contaminant mass baseline nor projected remedial milestones were established for the 
EFA CAP, which was completed by Triangle in 1995, or the CAP Addendum completed by 
Triangle in 1996. 

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The estimates below are based on certain assumptions and calculations.  The calculated total 
was for the approximate area and volume of the soil contamination from the soil cross sections 
generated during the 1994 CSA.  Pyramid averaged all the diesel range organic (DRO) soil 
samples from the summary table included in the 1994 CSA to calculate the average 
contaminant concentration.  This soil contaminant mass or baseline was calculated before any 
treatment/remediation at the site.   The calculated total DRO soil contaminant mass estimated 
by Pyramid is 171,079 pounds (see Appendix I).   

8.2 Groundwater – Total Mass of Contaminant 
No groundwater contaminant mass baseline nor projected remedial milestones were 
established for the EFA CAP, which was completed by Triangle in 1995, or the CAP Addendum 
completed by Triangle in 1996. 

Pyramid calculated a total mass of contaminant for Groundwater and calculated a comparison 
of the total mass of contaminant remaining at the beginning of July 2019.  The calculated total 
groundwater contaminant mass before remediation began in 1995 was about 1.17E+11 µg (see 
Appendix J). 

The calculated groundwater mass remaining (1.30E+09 µg) was calculated based on the July 
2019 groundwater concentrations and plume size.  These calculations provided an estimated 
groundwater remediation of approximately 97% reduction since the remediation system has 
been operational.  

The calculated groundwater mass remaining (3.00E+09 µg) was calculated based on the 
September 2020 groundwater concentrations and plume size. The September 2020 
contaminant mass calculations indicate a slight increase from the July 2019 sampling event. The 
total groundwater mass fluctuations are most likely due to the fluctuations of the depth to 
groundwater or water level.  

Using the total mass of contaminant to measure remediation progress has significant problems.  
If the analysis does not include the type of aquifer material the contaminants are contained in, 
and the release rate and release mechanisms, and “smear‐zone contaminant mass”, then 
measurement of mass removal may be inaccurate of misleading.  The US EPA has prepared 
written documents concerning this subject if additional information is required, please contact 
Pyramid.  
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9.0 SUMMARY AND RECOMMENDATIONS 

As requested, by Elastic Fabrics of America (EFA), Pyramid Environmental & Engineering, P.C. 
(Pyramid) has completed the CAP Performance Report (CAPR) for Elastic Fabrics of America.   
The  summary of the historic and recent assessment findings is presented below. 

 In April 2016, the EFA regulatory incident #9211 was ranked intermediate (I‐165‐D). 
Previous work to identify risk shows that there are still two active drinking water supply 
wells within 1,000 feet.   

 Municipal water from the City of Greensboro is currently available to the site and all 
surrounding properties within 1,000 feet of the site.  

 The site geology consists primarily of clayey silts, sandy silt, and saprolite. The bedrock 
was not encountered to a depth of 85 feet. 

 The depth to groundwater has fluctuated in the source area over the years from 15 to 25 
feet BLS.  When water levels are high, free‐product thickness decreases and when water 
levels are lower free‐product thickness increases. Groundwater gauging data were used 
with top‐of‐casing elevations to prepare a groundwater potentiometric contour map 
which shows the direction of groundwater movement is to the northeast.  

 Assessment and corrective action planning were completed between 1993 and 2000. The 
soil assessment from the CSA shows a broad area of soil contamination. No additional 
borings have been completed to refine this area of soil contamination. 

 Implementation of the CAP was completed in 2000 and the system has been operating 
since that time.  

 In June 2017, Pyramid installed three new 4‐inch diameter recovery wells RW‐7, RW‐8, 
and RW‐9 to allow for extraction in the area where free‐product has been identified. 
These wells were installed to 40 feet BLS with 30 feet of screen at the bottom of each 
well. Pumping of the new recovery wells will enhance the removal of free‐product in the 
source are and accelerate site cleanup.  

 In order to use the new recovery wells to reduce the fuel oil contamination at the site, 
subsurface piping, and pumps (use existing pumps) will have to be installed in the new 
recovery wells. This effort will provide remediation of free‐product in the source area and  
reduce the time and cost of site remediation. 

 The operation of the remediation system will be discussed in a future CAP Performance 
Report.  During the operation of the system water is recovered, treated, and discharged 
to the City of Greensboro sanitary sewer system under Special Discharge Permit #S2044. 

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 As requested by the NCDEQ, the remediation system was winterized and shut down on 
March 29, 2021. 

 On September 1, 2020, groundwater samples were collected from MW‐1A, 7, 9, 13, 16, 
17, RW‐7, RW‐8, and RW‐9.  Free product gauging was conducted on monitoring/recovery 
wells MW‐19, MW‐20, RW‐7, RW‐8, and RW‐9. Groundwater samples collected from 
these wells were analyzed using EPA Method 6200B. The analytical results showed a 
significant area of groundwater contamination still exists at the site.   

 Downgradient MW‐9 contained the highest concentration (697 g/l) and the wells 
downgradient of MW‐9 (MW‐11 and MW‐12 and MW‐15) have not been sampled since 
2014. Pyramid recommends that these three wells be sampled in 2021 to assess the 
downgradient extent of naphthalene and other petroleum contaminants.   

 Free‐phase petroleum product was detected in MW‐19 (0.04 ft.) and MW‐20 (0.58 ft.) in 
the source area. A sheen was detected in the three new recovery wells (RW‐7, RW‐8, and 
RW‐9).  Since the water table has been elevated, a lower amount of product was detected 
in these wells in September 2020. This does not mean that free product is no longer 
present in the area of new recovery wells.  Pyramid recommends placing the existing 
recovery pumps into the new recovery wells and installing remediation piping and 
manholes to connect the wells to the system.  

 Additional Monitoring wells to the west of MW‐20 (inside the building) and North of MW‐
20 (also inside the building) are recommended to further define the presence of free‐
product within and downgradient of the source area. Access through roll‐up doors for 
drilling and utility locating are required to complete the proposed wells.  

 Historically, free‐phase petroleum product has been detected in wells MW‐2, MW‐3, MW‐
7, MW‐9, MW‐13, MW‐19, MW‐20, RW‐1, RW‐2, and RW‐3. The presence of free‐product 
in the source area is stopping regulatory closure efforts for the site. 

 Petroleum compounds were detected in all 9 MWs in the September 2020 groundwater 
results with naphthalene detected over the NCAC 2L standard in all 9 wells. The area 
between the former UST area and the downgradient recovery wells near MW‐9 is not 
clearly defined, particularly east of MW‐16. Monitoring wells are recommended in this 
area to assess petroleum concentrations which may require cleanup.  

 The highest concentrations of the petroleum compounds were detected in the former 
UST area near RW‐1, and the greatest amount of free‐product was detected in MW‐20 
(0.58 feet or 6.96 inches). 

 The groundwater concentrations at the site indicate that the area of free‐product near 
MW‐19 is not defined to the west and north of the source area. Additional groundwater 
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monitoring wells will be needed to assess the extent of free‐product prior to the 
implementation of any free‐product recovery changes. 

 The last free product check was completed on March 29, 2021.  No free product was 
detected in the monitoring wells.  As requested by the NCDEQ, the remediation system 
was winterized and shut down on the same day (March 29, 2021). 

 After completion of the additional assessment inside the building, Pyramid recommends 
preparing a plan for surfactant injections to flush free‐phase product from the smear zone 
and provide free‐product cleanup. The details of the proposed remediation will be 
summarized in a New Technology Cleanup Plan (NTCP) for the site.  

In April 2017, the NCDEQ ranked the EFA site as intermediate risk (I‐165‐D) based on the 
presence of free‐phase petroleum product and the nearby water supply wells. The petroleum 
contamination appears to have migrated through a relatively high‐flow sandy layer over the 
past 40 years; however, the main free‐phase petroleum hydrocarbon mass is located in the 
smear zone between MW‐19 and MW‐20. Pyramid recommends: 

1. Continuation of the operation and maintenance of the existing groundwater recovery 
system at recovery wells RW‐1, RW‐2, and RW‐3, to continue to recover free‐phase 
petroleum product in the source area. 

2. Installation of several new monitoring wells west and north of MW‐19 and MW‐20 ( 
Inside the building). These new groundwater wells will help define the area of free‐
product to the west and north of the source area. Additional groundwater monitoring 
wells will be needed to assess the extent of free‐product prior to the implementation of 
the proposed free‐product recovery changes 

3. Pre‐approval of the costs to transfer the top‐loaded pneumatic pumps from recovery 
wells RW‐4, RW‐5, and RW‐6 to recovery wells RW‐7, RW‐8, and RW‐9. The three new 
recovery wells will be connected to the remediation system as planned. This change will 
provide free‐phase product recovery in the source area (where the free‐product is). 

4. Preparation of a System Enhancement Report for the site to cover the required work 
once the assessment in the building is completed.  

Pyramid will prepare and send a pre‐approval ePATA to the DEQ/Guilford County under 
separate cover.   

Elastic Fabrics of America – Monitoring Report 22
Pyramid Project #2020-165 06/17/2021

Closure 

This report is prepared for and made available solely for the use Elastic Fabrics of America and 
the NC DEQ. The contents thereof may not be used, or relied upon, by any other person 
without the express written consent and authorization of Pyramid Environmental & 
Engineering, P.C. The NCDEQ accepted the previous environmental investigations; therefore, 
these reports are counted as reliable in providing historical CSA, CAP, and operational data for 
the evaluations in this report. The subsurface is inherently heterogeneous and subsurface 
heterogeneities not identified in this limited study may influence COCs in unpredicted ways.  
Subsurface conditions such as groundwater flow, groundwater elevations, and water quality 
will vary over time. The opinions and conclusions in this report are in accordance with industry 
accepted geologic and hydrogeologic practices used at the time and location where the report 
was prepared. The observations, conclusions and recommendations documented in this report 
are based on site conditions and information reviewed by Pyramid at the time of Pyramid's 
investigation. 

FIGURES

TABLES

Analytical Analytical
Parameter Method MW-1A MW-16 MW-17 MW-18 MW-19 MW-20 Residential Industrial
Sample Date:7/14/2014 7/9/2014 7/9/2014 7/9/2014 7/9/2014 7/9/2014 MSCC MSCC
Sample Depth (feet):18 to 20 '18 to 20 '18 to 20 '18 to 20 '18 to 20 '18 to 20 '(mg/kg)(mg/kg)
MADEP EPH & VPH
C5-C8 Aliphatics (x)VPH ND NA NA ND ND ND 939 24,528
C9-C12 Aliphatics (a)VPH 20.4 NA NA 93.3 263 139
C9-C18 Aliphatics (b)EPH 4,360 NA NA 5,430 5,930 2,650 9,386 40,000
C9-C18 Aliphatics (a-c)+b 4,372.3 NA NA 5,486.7 6,092.0 2,736.7
C19-C36 Aliphatics (y)EPH ND NA NA ND ND ND 93,860 810,000
C9-C10 Aromatics (c)VPH 8.1 NA NA 36.6 101.0 52.3
C11-C22 Aromatics (d)EPH 2,510 NA NA 2,590 5,330 2,450 469 12,264
C9-C22 Aromatics (c+d)2,518.1 NA NA 2,626.6 5,431 2,502.3
EPA Method 8260
Acetone 8260 ND NA NA ND ND ND 14,000 360,000
Benzene 8260 ND NA NA ND ND ND 18 164
n-Butylbenzene 8260 1.02 NA NA ND 2.5 1.99 626 16,350
sec-Butylbenzene 8260 0.549 NA NA ND 1.25 1.37 626 16,350
tert-Butylbenzene 8260 ND NA NA 0.194 0.262 0.208 1,564 16,350
1,2-Dicholorbenzene 8260 ND NA NA ND ND 0.707 1,400 36,000
Ethylbenzene 8260 ND NA NA ND ND 0.685 1,560 40,000
IPE 8260 ND NA NA ND ND ND 156 4,088
Isopropylbenzene 8260 0.165 NA NA ND 0.731 0.702 1,564 40,880
p-Isopropyltoluene 8260 1.8 NA NA 0.202 3.23 3.03 No Standard No Standard
Methylene Chloride 8260 ND NA NA ND ND ND 85 763
MTBE 8260 ND NA NA ND ND ND 350 3,100
Naphthalene 8260 6.03 NA NA 0.445 23.5 12.1 313 8,176
n-Propylbenzene 8260 0.373 NA NA ND 1.68 1.54 626 16,350
Tetrachloroethene 8260 0.223 NA NA 0.12 ND ND 1.1 10
Toluene 8260 ND NA NA ND ND ND 1,200 32,000
1,2,4-Trimethylbenzene 8260 5.56 NA NA ND 16.1 8.88 782 20,440
1,3,5-Trimethylbenzene 8260 2.35 NA NA 0.437 0.464 2.41 782 20,440
Total Xylenes 8260 0.478 NA NA ND 3.021 ND 3,129 81,760
EPA Method 8270
1,4-Dichlorobenzene 8270 ND NA NA ND 0.807 ND 63 100
Fluorene 8270 3.12 NA NA ND ND 2.24 620 16,400
1-Methylnaphthalene 8270 23.2 NA NA ND 42.6 17.3 63 100
2-Methylnaphthalene 8270 39.4 NA NA ND 74.9 28.9 63 1,635
Naphthalene 8270 5.74 NA NA ND 15.3 6.27 313 8,176
Phenanthrene 8270 7.66 NA NA ND 11.2 5.35 469 12,264
Pyrene 8270 0.615 NA NA 0.517 0.904 ND 469 12,264
All other compounds ND NA NA ND ND ND NA NA
DIESEL RANGE ORGANICS (DRO)
Diesel Components 3550 7,030 3,930 6,950 6,520 10,700 4,910
mg/kg = milligrams/kilograms.BOLD, Highlighted are above Industrial MSCCs NA=Not Analzyed for this parameter
PPM = Parts Per M BOLD values are above Soil-to-Groundwater MSCC=Maximum Soil Contaminant Concentration
ND=Not Detected BOLD and shaded are above Residential MSCCs
TABLE 2
Risk-Based Results - 2014 Soil Samples
Elastic Fabrics of America
10
NC DENR Action Limit (mg/kg)
Sample Number
3112 Pleasant Garden Road, Greensboro, Guilford County, NC
NCDEQ Incident #9211
ELEVATION1
Top of
Casing
(feet)
Total
Well Depth
(feet)
Bottom of
Screen
(feet)
Top of
Screen
(feet)
MW-1 98.14 20.00 78.14 88.14 2 "
MW-2 98.94 28.10 70.84 80.84 2 "
MW-3 97.56 27.75 69.81 79.81 2 "
MW-4 98.84 28.10 70.74 80.74 2 "
MW-5 100.57 29.70 70.87 80.87 2 "
MW-6 96.18 30.30 65.88 75.88 2 "
MW-7 90.14 30.00 60.14 70.14 2 "
MW-8 101.22 29.10 72.12 82.12 2 "
MW-9 88.68 27.70 60.98 70.98 2 "
MW-10 77.15 17.70 59.65 64.65 2 "
MW-11 77.71 24.00 53.71 63.71 2 "
MW-12 83.87 25.00 58.87 68.87 2 "
MW-13 97.30 27.50 69.80 79.60 2 "
MW-14 98.39 45.00 53.39 58.39 2 "
MW-15 NM 20.80 NM NM 2 "
MW-16 95.22 30.00 65.22 85.22 2 "
MW-17 99.32 30.00 69.30 89.30 2 "
MW-18 97.70 30.00 67.70 87.70 2 "
MW-19 99.40 30.00 69.40 89.40 2 "
MW-20 99.51 30.00 69.51 89.51 2 "
VE-1 99.06 80.00 19.02 29.02 2 "
RW-1 98.62 38.50 65.12 80.12 6 "
RW-2 97.75 43.25 54.50 81.50 6 "
RW-3 98.32 43.00 60.32 80.32 6 "
RW-4 81.90 35.00 46.90 66.90 6 "
RW-5 83.29 35.00 48.29 68.29 6 "
RW-6 84.35 36.00 48.35 68.35 6 "
RW-7 99.77 40.00 59.77 89.77 4 "
RW-8 99.62 40.00 59.62 89.62 4 "
RW-9 99.86 40.00 59.86 89.86 4 "
NOTES:
1 Relative elevations surveyed from arbitrary 100 ft. temporary benchmark
All data in feet (ft.) NM = Not measured
Recovery wells RW-7, RW-8, and RW-9 were installed on June 27, 2017
TABLE 3
Monitoring & Recovery Well Construction Details
3112 Pleasant Garden Road, Greensboro, NC
MW-2 thru MW-14 & recovery wells were installed by TRC
Elastic Fabrics of America
DEQ Incident # 9211
MW-1 was installed by SPATCO (1993)
Well
Diameter
(Inches)
WELL NO.
Top of Depth to Depth Free- Free- Corrected Corrected
Well Date Casing Free-To Product Product Depth To Water
Number Gauged Elevation Product Water Thickness Adjustment Water Elevation
(feet) (feet) (feet) (feet) (feet) (feet) (feet)
07/30/14 98.90 Sheen 21.41 0.00 0.00 21.41 77.49
MW-1A 12/19/14 98.90 0.00 25.64 0.00 0.00 25.64 73.26
10/13/15 98.90 22.71 22.74 0.03 0.02 22.72 76.18
05/02/16 98.90 0.00 20.55 0.00 0.00 20.55 78.35
10/05/16 98.90 0.00 21.34 0.00 0.00 21.34 77.56
06/29/17 98.90 Sheen 19.52 0.00 0.00 19.52 79.38
06/07/18 98.90 Sheen 19.20 0.00 0.00 19.20 79.70
07/02/19 98.90 Sheen 15.66 0.00 0.00 15.66 83.24
09/01/20 98.90 Sheen 13.29 0.00 0.00 13.29 85.61
07/30/14 98.90 0.00 NG 0.00 0.00 0.00 98.90
MW-2 12/19/14 98.90 25.33 25.67 0.34 0.26 25.42 73.49
10/13/15 98.90 22.53 22.88 0.35 0.26 22.62 76.28
05/02/16 98.90 0.00 19.68 0.00 0.00 19.68 79.22
10/05/16 98.90 0.00 21.05 0.00 0.00 21.05 77.85
06/29/17 98.90 Sheen 19.47 0.00 0.00 19.47 79.43
06/07/18 98.90 Sheen 18.83 0.00 0.00 18.83 80.07
07/02/19 98.90 NG NG NG NG NG NG
10/13/15 97.56 Sheen 21.22 0.00 0.00 21.22 76.34
MW-3 05/02/16 97.56 0.00 17.38 0.00 0.00 17.38 80.18
10/05/16 97.56 0.00 19.99 0.00 0.00 19.99 77.57
06/29/17 97.56 Sheen 18.48 0.00 0.00 18.48 79.08
06/07/18 97.56 Sheen 17.76 0.00 0.00 17.76 79.80
07/02/19 97.56 NG NG NG NG NG NG
10/13/15 100.57 0.00 22.61 0.00 0.00 22.61 77.96
MW-5 05/02/16 100.57 NG NG NG NG NG NG
10/05/16 100.57 NG NG NG NG NG NG
06/29/17 101.57 NG NG NG NG NG NG
06/07/18 101.57 NG NG NG NG NG NG
07/02/19 101.57 NG NG NG NG NG NG
10/13/15 96.18 0.00 20.32 0.00 0.00 20.32 75.86
MW-6 05/02/16 96.18 0.00 17.38 0.00 0.00 17.38 78.80
10/05/16 96.18 NG NG NG NG NG NG
06/29/17 96.18 NG NG NG NG NG NG
06/07/18 96.18 NG NG NG NG NG NG
07/02/19 96.18 NG NG NG NG NG NG
10/13/15 90.14 Sheen 24.51 0.00 0.00 24.51 65.63
MW-7 05/02/16 90.14 0.00 22.48 0.00 0.00 22.48 67.66
10/05/16 90.14 NG NG NG NG NG NG
06/29/17 90.14 0.00 23.77 0.00 0.00 23.77 66.37
06/07/18 90.14 0.00 24.38 0.00 0.00 24.38 65.76
07/02/19 90.14 Sheen 20.70 0.00 0.00 20.70 69.44
09/01/20 90.14 Sheen 20.24 0.00 0.00 20.24 69.90
10/13/15 101.22 0.00 24.28 0.00 0.00 24.28 76.94
MW-8 05/02/16 101.22 0.00 19.63 0.00 0.00 19.63 81.59
10/05/16 101.22 NG NG NG NG NG NG
06/29/17 101.22 NG NG NG NG NG NG
06/07/18 101.22 NG NG NG NG NG NG
07/02/19 101.22 NG NG NG NG NG NG
NCDEQ Incident #9211
TABLE 4
Groundwater Elevation Data
Elastic Fabrics of America
3112 Pleasant Garden Road, Greensboro, NC
Page 1 of 4
Top of Depth to Depth Free- Free- Corrected Corrected
Well Date Casing Free-To Product Product Depth To Water
Number Gauged Elevation Product Water Thickness Adjustment Water Elevation
(feet) (feet) (feet) (feet) (feet) (feet) (feet)
NCDEQ Incident #9211
TABLE 4
Groundwater Elevation Data
Elastic Fabrics of America
3112 Pleasant Garden Road, Greensboro, NC
10/13/15 88.68 Sheen 21.65 0.00 0.00 21.65 67.03
MW-9 05/02/16 88.68 0.00 19.48 0.00 0.00 19.48 69.20
10/05/16 88.68 NG NG NG NG NG NG
06/29/17 88.68 0.00 20.72 0.00 0.00 20.72 67.96
06/07/18 88.86 NG NG NG NG NG NG
07/02/19 88.86 Sheen 17.43 0.00 0.00 17.43 71.43
09/01/20 88.86 Sheen 17.16 0.00 0.00 17.16 71.70
10/13/15 77.15 0.00 12.75 0.00 0.00 12.75 64.40
MW-10 05/02/16 77.15 0.00 10.96 0.00 0.00 10.96 66.19
10/05/16 77.15 NG NG NG NG NG NG
06/29/17 77.15 NG NG NG NG NG NG
06/07/18 77.15 NG NG NG NG NG NG
07/02/19 77.15 NG NG NG NG NG NG
10/13/15 83.87 0.00 19.12 0.00 0.00 19.12 64.75
MW-12 05/02/16 83.87 0.00 16.98 0.00 0.00 16.98 66.89
10/05/16 83.87 NG NG NG NG NG NG
06/29/17 83.87 NG NG NG NG NG NG
06/07/18 83.87 NG NG NG NG NG NG
07/02/19 83.87 NG NG NG NG NG NG
10/13/15 97.30 Slight Sheen 23.75 0.00 0.00 23.75 73.55
MW-13 05/02/16 97.30 0.00 20.88 0.00 0.00 20.88 76.42
10/05/16 97.30 0.00 22.10 0.00 0.00 22.10 75.20
06/29/17 97.30 0.00 21.81 0.00 0.00 21.81 75.49
06/07/18 97.30 NG NG NG NG NG NG
07/02/19 97.30 0.00 17.27 0.00 0.00 17.27 80.03
09/01/20 97.30 0.00 16.71 0.00 0.00 16.71 80.59
05/02/16 NM 0.00 19.68 0.00 0.00 NM NM
MW-14 10/05/16 NM NG NG NG NG NG NG
06/29/17 NM 0.00 21.11 0.00 0.00 NM NM
06/07/18 NM NG NG NG NG NG NG
07/02/19 NG NG NG NG NG NG NG
07/30/14 95.22 0.00 20.27 0.00 0.00 20.27 74.95
MW-16 12/19/14 95.22 0.00 22.97 0.00 0.00 22.97 72.25
10/13/15 95.22 Sheen 23.71 0.00 0.00 23.71 71.51
05/02/16 95.22 0.00 18.41 0.00 0.00 18.41 76.81
10/05/16 95.22 0.00 20.16 0.00 0.00 20.16 75.06
06/29/17 95.22 0.00 19.80 0.00 0.00 19.80 75.42
06/07/18 95.22 Slight Sheen 19.37 0.00 0.00 19.37 75.85
07/02/19 95.22 Sheen 15.11 0.00 0.00 15.11 80.11
09/01/20 95.22 Sheen 14.04 0.00 0.00 14.04 81.18
07/30/14 99.32 0.00 22.25 0.00 0.00 22.25 77.07
MW-17 12/19/14 99.32 0.00 25.49 0.00 0.00 25.49 73.83
10/13/15 99.32 Sheen 23.77 0.00 0.00 23.77 75.55
05/02/16 99.32 0.00 20.45 0.00 0.00 20.45 78.87
10/05/16 99.32 0.00 22.28 0.00 0.00 22.28 77.04
06/07/18 99.32 0.00 21.48 0.00 0.00 21.48 77.84
06/07/18 99.32 0.00 20.86 0.00 0.00 20.86 78.46
07/02/19 99.32 0.00 17.11 0.00 0.00 17.11 82.21
09/01/20 99.32 0.00 15.53 0.00 0.00 15.53 83.79
Page 2 of 4
Top of Depth to Depth Free- Free- Corrected Corrected
Well Date Casing Free-To Product Product Depth To Water
Number Gauged Elevation Product Water Thickness Adjustment Water Elevation
(feet) (feet) (feet) (feet) (feet) (feet) (feet)
NCDEQ Incident #9211
TABLE 4
Groundwater Elevation Data
Elastic Fabrics of America
3112 Pleasant Garden Road, Greensboro, NC
07/30/14 97.70 0.00 20.09 0.00 0.00 20.09 77.61
MW-18 12/19/14 97.70 0.00 24.56 0.00 0.00 24.56 73.14
10/13/15 97.70 Slight Sheen 21.44 0.00 0.00 21.44 76.26
05/02/16 97.70 0.00 19.00 0.00 0.00 19.00 78.70
10/05/16 97.70 NG NG NG NG NG NG
06/29/17 97.70 NG NG NG NG NG NG
06/07/18 97.70 NG NG NG NG NG NG
07/02/19 97.70 NG NG NG NG NG NG
07/30/14 99.40 Sheen 21.47 0.00 0.00 21.47 77.93
MW-19 12/19/14 99.40 24.66 24.70 0.04 0.03 24.67 74.73
10/13/15 99.40 23.06 23.91 0.85 0.64 23.27 76.13
05/02/16 99.40 20.05 20.50 0.45 0.34 20.16 79.24
10/05/16 99.40 21.54 21.99 0.45 0.34 21.65 77.75
06/29/17 99.40 20.63 20.82 0.19 0.14 20.68 78.72
06/07/18 99.40 19.92 19.94 0.02 0.01 19.93 79.48
07/02/19 99.40 Heavy Sheen 16.14 0.00 0.00 16.14 83.26
09/01/20 99.40 19.35 19.39 0.04 0.03 19.36 80.04
07/30/14 99.51 21.64 21.66 0.02 0.01 21.65 77.87
MW-20 12/19/14 99.51 24.94 25.27 0.33 0.25 25.02 74.49
10/13/15 99.51 23.19 23.51 0.32 0.24 23.27 76.24
05/02/16 99.51 20.38 20.74 0.36 0.27 20.47 79.04
10/05/16 99.51 21.49 22.21 0.72 0.54 21.67 77.84
06/29/17 99.51 20.38 20.83 0.45 0.34 20.49 79.02
06/07/18 99.51 19.81 19.85 0.04 0.03 19.82 79.69
07/02/19 99.51 16.34 16.72 0.38 0.28 16.44 83.08
09/01/20 99.51 15.05 15.63 0.58 0.44 15.20 84.32
07/30/14 99.06 0.00 22.12 0.00 0.00 22.12 76.94
VE-1 12/19/14 99.06 0.00 25.48 0.00 0.00 25.48 73.58
10/13/15 99.06 0.00 23.51 0.00 0.00 23.51 75.55
05/02/16 99.06 0.00 20.45 0.00 0.00 20.45 78.61
10/05/16 99.06 NG NG NG NG NG NG
06/29/17 99.06 NG NG NG NG NG NG
06/07/18 99.06 NG NG NG NG NG NG
07/02/19 99.06 NG NG NG NG NG NG
07/30/14 98.53 24.04 24.10 0.06 0.00 24.10 74.43
RW-1 12/19/14 98.53 NG NG NG NG NG NG
10/13/15 98.53 NG NG NG NG NG NG
05/02/16 98.53 NG NG NG NG NG NG
10/05/16 98.53 NG NG NG NG NG NG
06/29/17 98.53 NG NG NG NG NG NG
06/07/18 98.53 NG NG NG NG NG NG
07/02/19 98.53 NG NG NG NG NG NG
07/30/14 97.68 Sheen 21.74 0.00 0.00 21.74 75.94
RW-2 12/19/14 97.68 NG NG NG NG NG NG
10/13/15 97.68 NG NG NG NG NG NG
05/02/16 97.68 NG NG NG NG NG NG
10/05/16 97.68 NG NG NG NG NG NG
06/29/17 97.68 NG NG NG NG NG NG
06/07/18 97.68 NG NG NG NG NG NG
07/02/19 97.68 NG NG NG NG NG NG
Page 3 of 4
Top of Depth to Depth Free- Free- Corrected Corrected
Well Date Casing Free-To Product Product Depth To Water
Number Gauged Elevation Product Water Thickness Adjustment Water Elevation
(feet) (feet) (feet) (feet) (feet) (feet) (feet)
NCDEQ Incident #9211
TABLE 4
Groundwater Elevation Data
Elastic Fabrics of America
3112 Pleasant Garden Road, Greensboro, NC
07/30/14 98.3 Sheen 21.73 0.00 0.00 21.73 76.57
RW-3 12/19/14 98.3 NG NG NG NG NG NG
10/13/15 98.3 NG NG NG NG NG NG
05/02/16 98.3 NG NG NG NG NG NG
10/05/16 98.3 NG NG NG NG NG NG
06/29/17 98.3 NG NG NG NG NG NG
06/07/18 98.3 NG NG NG NG NG NG
07/02/19 98.3 NG NG NG NG NG NG
06/29/17 99.77 0.00 20.89 0.00 0.00 20.89 78.88
RW-7 08/02/17 99.77 0.00 20.80 0.00 0.00 20.80 78.97
06/07/18 99.77 0.00 20.20 0.00 0.00 20.20 79.57
07/02/19 99.77 Sheen 16.50 0.00 0.00 16.50 83.27
09/01/20 99.77 Sheen 15.62 0.00 0.00 15.62 84.15
06/29/17 99.62 0.00 20.20 0.00 0.00 20.20 79.42
RW-8 08/02/17 99.62 0.00 20.47 0.00 0.00 20.47 79.15
06/07/18 99.62 Sheen 19.91 0.00 0.00 19.91 79.71
07/02/19 99.62 Heavy Sheen 16.29 0.00 0.00 16.29 83.33
09/01/20 99.62 Sheen 15.28 0.00 0.00 15.28 84.34
06/29/17 99.86 0.00 20.77 0.00 0.00 20.77 79.09
RW-9 08/02/17 99.86 0.00 20.80 0.00 0.00 20.80 79.06
06/07/18 99.86 0.00 20.30 0.00 0.00 20.30 79.56
07/02/19 99.86 Heavy Sheen 16.75 0.00 0.00 16.75 83.11
09/01/20 99.86 Sheen 15.45 0.00 0.00 15.45 84.41
NG = Not gauged NM = Not measured
Page 4 of 4
Date MW-1A MW-2 MW-3 MW-7 MW-9 MW-13 RW-1 RW-2 RW-3 RW-7 RW-8 RW-9 MW-18 MW-19 MW-20
(feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet)
06/07/02 NI 1.58 1.74 0.29 3.14 1.04 NG NG NG NI NI NI NI NI NI
09/05/02 NI 1.94 1.09 0.72 2.87 0.58 NG NG NG NI NI NI NI NI NI
12/19/02 NI 0.38 1.20 0.2 1.35 1.18 NG NG NG NI NI NI NI NI NI
03/19/03 NI 0.71 0.95 0.22 0.17 0.37 NG NG NG NI NI NI NI NI NI
06/10/03 NI 0.43 0.48 0.07 2.59 0.15 NG NG NG NI NI NI NI NI NI
09/02/03 NI 0.10 0.62 0.16 1.49 0.17 NG NG NG NI NI NI NI NI NI
12/09/03 NI 0.04 0.04 0.26 0.6 0.11 NG NG NG NI NI NI NI NI NI
02/25/04 NI 0.01 0.01 0.09 0.37 0.02 NG NG NG NI NI NI NI NI NI
06/10/04 NI 0.18 0.24 0.42 0.65 0.33 NG NG NG NI NI NI NI NI NI
09/09/04 NI 0.15 0.02 0.22 0.57 0.32 NG NG NG NI NI NI NI NI NI
12/14/04 NI 0.15 0.03 0.11 0.22 0.01 NG NG NG NI NI NI NI NI NI
06/17/05 NI NG NG 0.01 0.55 NG NG NG NG NI NI NI NI NI NI
12/20/05 NI 0.17 0.00 0.18 0.35 0.04 NG NG NG NI NI NI NI NI NI
07/11/06 NI 0.13 0.00 0.20 0.41 0.17 NG NG NG NI NI NI NI NI NI
12/14/06 NI 0.00 0.00 0.00 0.00 0.00 NG NG NG NI NI NI NI NI NI
06/19/07 NI 0.23 NG NG 0.35 0.62 NG NG NG NI NI NI NI NI NI
12/03/07 NI 0.62 0.03 0.10 0.55 0.62 NG NG NG NI NI NI NI NI NI
09/18/08 NI 1.35 NG 0.85 0.70 1.90 NG NG NG NI NI NI NI NI NI
12/22/08 NI 0.75 0.01 0.10 0.01 0.47 NG NG NG NI NI NI NI NI NI
06/26/09 NI 0.25 NG 0.01 0.00 0.00 NG NG NG NI NI NI NI NI NI
12/17/09 NI 0.53 NG 0.01 0.01 0.02 NG NG NG NI NI NI NI NI NI
06/08/10 NI 0.01 0.00 0.00 0.00 0.00 NG NG NG NI NI NI NI NI NI
09/09/10 NI 0.23 0.00 0.00 0.00 0.10 NG NG NG NI NI NI NI NI NI
12/07/10 NI 0.25 0.00 0.00 0.00 0.03 NG NG NG NI NI NI NI NI NI
06/03/11 NI 0.39 0.00 0.00 0.00 0.00 NG NG NG NI NI NI NI NI NI
12/16/11 NI 0.49 0.00 0.00 0.00 0.01 NG NG NG NI NI NI NI NI NI
06/27/12 NI 0.83 0.00 0.00 0.00 0.74 NG NG NG NI NI NI NI NI NI
12/20/12 NI 1.93 0.00 0.00 0.00 0.29 NG NG NG NI NI NI NI NI NI
06/25/13 NI 0.63 0.00 0.00 0.00 3.73 NG NG NG NI NI NI NI NI NI
12/18/13 NI 0.99 0.00 0.00 0.00 0.00 NG NG NG NI NI NI NI NI NI
07/30/14 0.00 NG NG NG NG NG 0.06 Sheen Sheen NI NI NI 0.00 Sheen 0.02
12/19/14 0.00 0.34 NG NG NG NG NG NG NG NI NI NI 0.00 0.04 0.33
10/13/15 0.03 0.35 Sheen Sheen Sheen Sheen NG NG NG NI NI NI Sheen 0.85 0.32
05/02/16 0.00 0.00 0.00 0.00 0.00 0.00 NG NG NG NI NI NI 0.00 0.45 0.36
10/05/16 0.00 0.00 0.00 NG ND 0.00 NG NG NG NI NI NI NG 0.45 0.72
06/29/17 0.00 0.00 0.00 0.00 0.00 0.00 NG NG NG 0.00 0.00 0.00 NG 0.19 0.45
08/02/17 NG NG NG NG NG NG NG NG NG 0.00 0.00 0.00 NG NG NG
06/07/18 Sheen Sheen Sheen 0.00 NG NG NG NG NG 0.00 0.00 0.00 NG 0.02 0.04
07/02/19 Sheen NG NG Sheen Sheen 0.00 NG NG NG Sheen Sheen Sheen Sheen Sheen 0.38
09/01/20 Sheen NG NG Sheen Sheen 0.00 NG NG NG Sheen Sheen Sheen NG 0.04 0.58
All measurements in feet NI = Not Yet Installed
NG = Not Gauged on this date Sheen = Oily Sheen Observed
TABLE 5
Historic Free-Phase Product Thickness
Elastic Fabrics of America
3112 Pleasant Garden Road, Greensboro, NC
NCDEQ Incident #9211
MW-1A MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20 VE-1 RW-1 RW-2 RW-3 RW-7 RW-8 RW-9 VOCs by SM Method 6200BBenzene12/19/2013NI FP ND ND ND ND5.6ND61ND ND ND ND ND ND NI NI NI NI NI NI NS NS NS - - -ug/l 7/30/2014 2.1FP NS NS NS NS NS NS NS NS NS NS NS NS NS ND ND ND ND28.7 2.3 8.4 1.6ND - - -10/14/2015ND FP ND NS ND ND4.6ND44.8ND NS1ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016ND ND NS NS NS ND5.6ND44.4ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS3.8NS40.9NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS3.4NS NS NS NS NS NS NS NS ND ND NS ND 37.2 NS NS NS NS - - -7/2/2019ND NS NS NS NS NS4.7NS38NS NS NS NS NS NS ND ND NS NS NS NS NS NS NS 21.3 ND 1.99/1/2020ND NS NS NS NS NS4.8NS34.8NS NS NS ND NS NS2.7ND NS FP FP NS NS NS NS ND ND 3.1Toluene12/19/2013NI FP ND ND ND ND ND ND ND ND ND ND ND ND ND NI NI NI NI NI NI NS NS NS - - -ug/l 7/30/20141.2FPNSNSNSNSNSNSNSNSNSNSNSNSNS3.4NDND2.6NDNDNDNDND - - -10/14/2015ND FP ND NS ND ND ND ND ND ND NS ND ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016ND ND NS NS NS ND ND ND ND ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019ND NS NS NS NS NS ND NS ND NS NS NS NS NS NS ND ND NS NS NS NS NS NS NS 23.4 ND ND9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND NDEthylbenzene12/19/2013NI FP 1.3 1 ND ND ND ND 0.67J ND ND ND ND ND ND NI NI NI NI NI NI NS NS NS - - -ug/l 7/30/201414.3FPNSNSNSNSNSNSNSNSNSNSNSNSNSNDND 4 ND39.1NDND1.5ND - - -10/14/20158.5FPNDNSNDNDNDNDNDNDNSNDNDNSNSND1.8NSFPFPNDNSNSNS - - -5/2/201612.70.74NSNSNSNDNDNDNDNDNSNDNDNSNSND0.77NDFPFPNDNSNSNS - - -10/5/20166.20.61NDNDNSNSNSNSNSNSNSNSNDNDNSND1.1NSNSNSNSNSNSNS - - -6/29/20175.1 ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND 1.4 NS NS NS NS NS NS NS - - -6/7/20184.50.89NDNDNSNSNDNSNSNSNSNSNSNSNSND0.91NSND38.5NSNSNSNS - - -7/2/20194.9NSNSNSNSNSNDNSNDNSNSNSNSNSNSNDNDNSNSNSNSNSNSNSND3.824.59/1/20204.5NSNSNSNSNSNDNSNDNSNSNSNDNSNSND1.2NSFPFPNSNSNSNS2.93.132.1Total Xylenes12/19/2013NI FP 150 7.2 ND ND 56 4.2 44 ND ND ND 110 ND ND NI NI NI NI NI NI NS NS NS - - -ug/l 7/30/201438.9 FP NS NS NS NS NS NS NS NS NS NS NS NS NS 165.9 101.7 106.5 169.4 24.6 ND 18.1 30.1 9.1 - - -10/14/201512 FP 53.5 NS ND ND 25.6 3.6 24.2 ND NS ND 112.3 NS NS 176.3 77.2 NS FP FP ND NS NS NS - - -5/2/201629.6 42.9 NS NS NS ND 23.8 ND 37.8 ND NS ND 48.5 NS NS 129.2 30.9 88.5 FP FP ND NS NS NS - - -10/5/20164.8 35.1 53.1 31.4 NS NS NS NS NS NS NS NS 93.2 ND NS 113.2 50.3 NS NS NS NS NS NS NS - - -6/29/20176.2 13.2 6.3 21.6 NS NS 22.9 NS 35.9 NS NS NS 93 ND NS 120 80.6 NS NS NS NS NS NS NS - - -6/7/20185.422.7 8 15.5 NS NS ND NS NS NS NS NS NS NS NS 117.3 60.3 NS 99.3 54.2 NS NS NS NS - - -7/2/20196.6 NS NS NS NS NS 21.7 NS 59.8 NS NS NS 38.1 NS NS 112.3 66.8 NS NS NS NS NS NS NS ND 2.6 1.39/1/20205.7 NS NS NS NS NS 18.9 NS 53.2 NS NS NS 93.8 NS NS 124.2 68.4 NS FP FP NS NS NS NS 5.8 2.7 1.4TOTAL BTEX12/19/2013NI FP 151.3 8.2 ND ND 61.6 4.2 105.67 ND ND ND 110 ND ND NI NI NI NI NI NI NS NS NS - - -ug/l 7/30/201456.5 FP NS NS NS NS NS NS NS NS NS NS NS NS NS 169.3 101.7 110.5 172 92.4 2.3 26.5 33.2 9.1 - - -10/14/201520.5 FP 53.5 NS ND ND 30.2 3.6 69 ND NS 1 112.3 NS NS 176.3 79 NS FP FP ND NS NS NS - - -5/2/201642.3 43.64 NS NS NS ND ND ND 82.2 ND NS ND 48.5 NS NS 129.2 31.67 88.5 FP FP ND NS NS NS - - -10/5/201611.0 35.71 53.1 31.4 NS NS NS NS NS NS NS NS 93.2 ND NS 113.2 50.3 NS NS NS NS NS NS NS - - -6/29/201711.3 13.2 6.3 21.6 NS NS 26.7 NS 76.8 NS NS NS 93 ND NS 120 82 NS NS NS NS NS NS NS - - -6/7/20189.9 23.59 8 15.5 NS NS 3.4 NS NS NS NS NS NS NS NS 117.3 61.21 NS 99.3 129.9 NS NS NS NS - - -7/2/201911.5 NS NS NS NS NS 48.1 NS 97.8 NS NS NS 38.1 NS NS 112.3 66.8 NS NS NS NS NS NS NS ND ND ND9/1/202010.2 NS NS NS NS NS 23.7 NS 88 NS NS NS 93.8 NS NS 126.9 69.6 NS FP FP NS NS NS NS 8.7 5.8 36.6n-Butylbenzene7/2/2019NDNSNSNSNSNSNDNS5.5NSNSNSNSNSNSNDNDNSNSNSNSNSNSNSND2.63.1ug/l 9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND NDsec-Butylbenzene7/2/2019ND NS NS NS NS NS ND NS ND NS NS NS NS NS NS ND ND NS NS NS NS NS NS NS ND 2.4 2.9ug/l 9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS 3.5 2.8 NDtert-Butylbenzene7/2/2019ND NS NS NS NS NS ND NS ND NS NS NS NS NS NS ND ND NS NS NS NS NS NS NS ND 2.4 2.9708500ug/l 9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS 1.3 1.1 NDn-Propylbenzene7/2/20193 NS NS NS NS NS 3.6 NS 5.4 NS NS NS 3.3 NS NS 4.4 4.1 NS NS NS NS NS NS NS ND 6.8 9.49/1/20203.1NSNSNSNSNS3.9NS5.7NSNSNS5.9NSNS3.52.5NSFPFPNSNSNSNS10.36.112.3Isopropylbenzene (cumene)7/2/20192.5 NS NS NS NS NS 4.4 NS 5.8 NS NS NS 2.9 NS NS 6.1 2.9 NS NS NS NS NS NS NS ND 7.5 6.7ug/l 9/1/20202.6NSNSNSNSNS5.3NS6.6NSNSNS5.5NSNS6.92.5NSFPFPNSNSNSNS10.87.28.3NCDEQ Incident #9211Laboratory Methods & ParametersUNITS DATEMONITORING WELL IDNCAC 2L Groundwater Standard (µg/l)GCLs (µg/l)15,000600260,00050085,500No StandardNo StandardTABLE 6Groundwater Analytical ResultsElastic Fabrics of America3112 Pleasant Garden Road, Greensboro, NC706,900708500703000070250084,500600Page 1 of 4
MW-1A MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20 VE-1 RW-1 RW-2 RW-3 RW-7 RW-8 RW-9 NCDEQ Incident #9211Laboratory Methods & ParametersUNITS DATEMONITORING WELL IDNCAC 2L Groundwater Standard (µg/l)GCLs (µg/l)TABLE 6Groundwater Analytical ResultsElastic Fabrics of America3112 Pleasant Garden Road, Greensboro, NCEDB7/30/2014ND FP NS NS NS NS NS NS NS NS NS NS NS NS NS ND ND ND ND ND ND ND ND ND - - -ug/l 10/14/2015ND FP ND NS ND ND ND ND ND ND NS ND ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016ND ND NS NS NS ND ND ND ND ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019ND NS NS NS NS NS ND NS NS NS NS NS ND NS NS ND ND NS NS NS NS NS NS NS ND ND ND9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND ND1,2-Dichlorobenzene12/19/2013NI FP 6 3.3 ND ND 0.59J ND 0.87J ND ND ND 15 ND ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/201412 FP NS NS NS NS NS NS NS NS NS NS NS NS NS 9.4 11.2 2.7 8 10.1 ND ND ND 1.6 - - -10/14/201511 FP3.7NSNDNDNDNDNDNDNSND10.9NSNS9.6 8 NSFPFPNDNSNSNS - - -5/2/2016 39.3ND NS NS NS ND ND ND ND ND NS ND 8.4 NS NS 7.5 4.8 2.7 FP FP ND NS NS NS - - -10/5/201612.1 1.5 3.6 1.6 NS NS NS NS NS NS NS NS 10.9 ND NS 6.7 7.9 NS NS NS NS NS NS NS - - -6/29/201714.6NDNDNDNSNSNDNSNDNSNSNS9.8NDNS7.1NDNSNSNSNSNSNSNS - - -6/7/20188.3 0.99 1.1 0.86 NS NS ND NS NS NS NS NS NS NS NS 6.6 7.3 NS 5.9 5.9 NS NS NS NS - - -7/2/20197.9 NS NS NS NS NS ND NS NS NS NS NS 3.9 NS NS 5.5 6.8 NS NS NS NS NS NS NS ND 11.7 12.29/1/20208.8 NS NS NS NS NS ND NS ND NS NS NS 8 NS NS 6.3 7.1 NS FP FP NS NS NS NS 10.7 12 15.91,3-Dichlorobenzene12/19/2013NI FP NA NA NA NA NA NA NA NA NA NA NA NA NA NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/2014ND FP NS NS NS NS NS NS NS NS NS NS NS NS NS ND ND ND ND ND ND ND ND ND - - -10/14/2015ND FP ND NS ND ND ND ND ND ND NS ND ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016ND ND NS NS NS ND ND ND ND ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND 1.4 ND 1.1 NS NS ND NS ND NS NS NS ND ND NS ND 9.1 NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019ND NS NS NS NS NS ND NS NS NS NS NS ND NS NS ND ND NS NS NS NS NS NS NS ND ND ND9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND ND1,4 Dichlorobenzene12/19/2013NI FP 0.92J 0.52J ND ND NA NA NA ND ND ND NA ND ND NS NS NS NS NS NS NS NS NS - - -ug/l 7/30/20141.4FPNSNSNSNSNSNSNSNSNSNSNSNSNSNDNDNDNDNDNDNDNDND - - -10/14/2015ND FP ND NS ND ND ND ND ND ND NS ND ND NS NS ND 1.8 NS FP FP ND NS NS NS - - -5/2/2016ND 0.52 NS NS NS ND ND ND ND ND NS ND 1.4 NS NS 1 1.8 ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS 1.4 ND NS ND 1.8 NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS 1.4 ND NS ND 1.6 NS NS NS NS NS NS NS - - -6/7/20181.4 ND 0.5 ND NS NS ND NS NS NS NS NS NS NS NS ND 1.6 NS ND ND NS NS NS NS - - -7/2/2019ND NS NS NS NS NS ND NS NS NS NS NS 0.65 NS NS ND ND NS NS NS NS NS NS NS ND ND 1.59/1/20201.4NSNSNSNSNSNDNSNDNSNSNSNDNSNSND1.3NSFPFPNSNSNSNS1.31.5 2cis-1,2-Dichloroethene12/19/2013NI FP3.6NDNDND1.9ND61NDND1.7NDNDNDNSNININININININSNS- - -ug/l 7/30/201425.1FPNSNSNSNSNSNSNSNSNSNSNSNSNSNDNDNDND570.7119.14.23.2 - - -10/14/201514.2 FP 4.1 NS ND ND ND ND 33.1 ND NS 4.4 ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/201618.1 ND NS NS NS ND 1.4 ND 19.5 ND NS 3.8 ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/201626.5 ND 6.1 ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/201716.6ND0.88NDNSNSNDNS17.2NSNSNSNDNDNSNDNDNSNSNSNSNSNSNS - - -6/7/201810.7 3.7 ND ND NS NS 1 NS NS NS NS NS NS NS NS ND ND NS 1.3 ND NS NS NS NS - - -7/2/201917.8NSNSNSNSNS1.3NS14.6NSNSNSNDNSNSNDNDNSNSNSNSNSNSNS39.35 6.79/1/202045.1NSNSNSNSNSNDNS13.8NSNSNSNDNSNSNDNDNSFPFPNSNSNSNS683.1 8.91,2,4-trimethylbenzene12/19/2013NI FP NA NA NA NA NA NA NA NA NA NA NA NA NA NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/2014105 FP NS NS NS NS NS NS NS NS NS NS NS NS NS 175 124 79.7 157 54.4 ND 25 17.1 16.6 - - -10/14/2015101FP 76.8 NS ND ND 22.6 7.3 21.9 ND NS ND 116 NS NS 200 82.5 NS FP FP ND NS NS NS - - -5/2/2016 47249.2 NS NS NS ND 27.8 ND 23.9 ND NS ND 59.9 NS NS 113 25.4 61.1 FP FP ND NS NS NS - - -10/5/201694.423.359.144.6NSNSNSNSNSNSNSNS102NDNS10962.6NSNSNSNSNSNSNS - - -6/29/201792.6 ND 11 37.1 NS NS 27.7 NS 27.8 NS NS NS 104 ND NS 124 103 NS NS NS NS NS NS NS - - -6/7/201840.4 25 22.6 31.3 NS NS 31.5 NS NS NS NS NS NS NS NS 116 106 NS 85.1 49.7 NS NS NS NS - - -7/2/201955.8NSNSNSNSNS36.4NS46.6NSNSNS50.9NSNSND95.2NSNSNSNSNSNSNSND26.123.39/1/202068.3 NS NS NS NS NS 30.9 NS 43.7 NS NS NS 92.1 NS NS 116 64.3 NS FP FP NS NS NS NS 15.1 29.3 22.11,3,5-trimethylbenzene12/19/2013NI FP NA NA NA NA NA NA NA NA NA NA NA NA NA NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/201429.7FPNSNSNSNSNSNSNSNSNSNSNSNSNS15.352.216.73.57.7NDND4.21.7 - - -10/14/201530.2 FP 14.8 NS ND ND ND 7.3 ND ND NS ND ND NS NS 3.8 32.9 NS FP FP ND NS NS NS - - -5/2/2016193 45.9 NS NS NS ND ND ND ND ND NS ND 2.3 NS NS 3.6 14.2 5.8 FP FP ND NS NS NS - - -10/5/201635.316.88.116.2NSNSNSNSNSNSNSNS3.0NDNS2.826.2NSNSNSNSNSNSNS - - -6/29/201754.1NDND13.9NSNSNDNSNDNSNSNSNDNDNSNDNDNSNSNSNSNSNSNS - - -6/7/201814.510.5313.6NSNSNDNSNSNSNSNSNSNSNSND44.4NSND4.5NSNSNSNS - - -7/2/201918.3NSNSNSNSNSNDNSNSNSNSNSNDNSNSND39.6NSNSNSNSNSNSNSNDND5.99/1/202024.7NSNSNSNSNSNDNSNDNSNSNSNDNSNSND22.8NSFPFPNSNSNSNSNDNDND20061,50040025,0006070,00066,00040028,500502020,0000.02Page 2 of 4
MW-1A MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20 VE-1 RW-1 RW-2 RW-3 RW-7 RW-8 RW-9 NCDEQ Incident #9211Laboratory Methods & ParametersUNITS DATEMONITORING WELL IDNCAC 2L Groundwater Standard (µg/l)GCLs (µg/l)TABLE 6Groundwater Analytical ResultsElastic Fabrics of America3112 Pleasant Garden Road, Greensboro, NCNaphthalene12/19/2013NI FP550 280ND ND11004.4J690ND 0.72J ND6001.3J ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/2014 518FP NS NS NS NS NS NS NS NS NS NS NS NS NS509 239 224 454 460ND60.5 61.3 44.5---10/14/2015 420FP251NS ND ND217 8.2 473ND NS ND441NS NS555 184NS FP FP ND NS NS NS - - -5/2/2016 1100 71.6NS NS NS ND293ND 4.5 ND NS ND292NS NS341 36.7 209FP FP ND NS NS NS - - -10/5/2016 315 66.9 255 84NS NS NS NS NS NS NS NS359ND NS349 84NS NS NS NS NS NS NS - - -6/29/2017 67.4 32.4 34 68.7NS NS304NS539NS NS NS410ND NS366 145NS NS NS NS NS NS NS - - -6/7/2018 163 73.5 63.4 45NS NS359NS NS NS NS NS NS NS NS341 110NS343 476NS NS NS NS - - -7/2/2019 128NS NS NS NS NS301NS499NS NS NS135NS NS269 100NS NS NS NS NS NS NS ND ND3179/1/2020 137NS NS NS NS NS399NS697NS NS NS325NS NS333 163NS FP FP NS NS NS NS31.1 87 373 12/19/2013NI FP10 7.1ND ND13 0.96J 10ND ND3.2 7.1J0.59J ND NS NI NI NI NI NI NI NS NS - - -Tetracholoroethene (PCE)ug/l 7/30/2014 6.5FP NS NS NS NS NS NS NS NS NS NS NS NS NS4.2 10 2.6 4.1ND1.9ND1.1 3.2---10/14/2015ND FP8.9NSND ND4.8 1 7.7 3.2NS4.1 5.6NS NS4.3 11.3NS FP FP ND NS NS NS - - -5/2/2016 18.4 2.8NS NS NS ND0.80ND5.5 1.3NS2.5 5.3NS NS4 12.9 2.4FP FP ND NS NS NS - - -10/5/2016 3.6 1.8 7.5ND NS NS NS NS NS NS NS NS5.2ND NS3.2 11.8NS NS NS NS NS NS NS - - -6/29/2017 11.4 1.7 12.2 2.5NS NS5.3NS6.1NS NS NS4.8ND NS3.4 9.1NS NS NS NS NS NS NS - - -6/7/2018 3.1 1.2 14.2 2.8NS NS6.2NS NS NS NS NS NS NS NS3.1 8.8NS3.6ND NS NS NS NS - - -7/2/2019 5.2NS NS NS NS NS7.1NS3.6NS NS NS4.5NS NS2.6 9.5NS NS NS NS NS NS NS ND ND ND9/1/2020 3.6NS NS NS NS NS7.5NS4.6NS NS NS5.4NS NS3.3 5.9NS FP FP NS NS NS NS1.0ND ND 12/19/2013NI FP ND ND ND ND ND ND ND ND ND ND ND ND ND NS NI NI NI NI NI NI NS NS - - -1,1,1-Trichloroethaneug/l 7/30/2014ND FP NS NS NS NS NS NS NS NS NS NS NS NS NS ND ND ND ND ND ND ND ND ND - - -10/14/2015ND FP ND NS ND ND ND ND ND ND NS ND ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016ND ND NS NS NS ND ND ND ND ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND NS NS NS NS NS NS NS NS ND ND ND9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND ND 12/19/2013NI FP ND ND ND ND 1 ND4.6ND ND 0.62J ND ND ND NS NI NI NI NI NI NI NS NS - - -Trichloroethene (TCE)ug/l 7/30/2014ND FP NS NS NS NS NS NS NS NS NS NS NS NS NS ND ND ND ND ND ND ND ND ND - - -10/14/2015 4.5FP ND NS ND ND ND ND42.6 NS 1.3 ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016ND ND NS NS NS ND5.4ND 2.4 2.3 NS 0.98 ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND3.5NSNS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS3.7NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS NS NS NS NS NS NS ND ND ND9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND ND7/2/2019 0.68NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND1.5NS NS NS NS NS NS NS ND ND ND1,2,3-Tricloropropane9/1/2020 0.70NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND ND 12/19/2013NI FP ND ND ND ND ND ND ND ND ND ND ND ND ND NS NI NI NI NI NI NI NS NS - - -Vinyl Chloride (VC)ug/l 7/30/2014ND FP NS NS NS NS NS NS NS NS NS NS NS NS NS ND ND ND ND ND ND ND ND ND - - -10/14/2015ND FP ND NS ND ND ND ND ND ND NS ND ND NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016ND ND NS NS NS ND ND ND ND ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS NS NS NS NS NS NS ND ND ND9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND NDug/l 12/19/2013ND FP ND NS ND ND ND ND15ND NS 0.76J ND NS NS ND NI NI NI NI NI NI NS NS - - -7/30/2014ND FP ND NS ND ND ND ND NS ND NS NS ND NS NS ND ND NS FP FP ND NS NS NS - - -10/14/2015ND FP ND NS ND ND ND ND10.1NDNS3.1NDNSNSNDNDNSFPFPNDNSNSNS - - -5/2/2016ND ND NS NS NS ND ND ND8.3ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS 6.5 NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019NDNSNSNSNSNSNDNS5.8NSNSNSNDNSNSNDNDNSNSNSNSNSNSNSNDNDND9/1/2020ND NS NS NS NS NS ND NS 4.4 NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND NDSVOCs by EPA Method 625Acenaphthene12/19/2013NI FP ND ND ND ND 7.5J ND 7.2J ND ND ND ND ND ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/20145 FPNSNSNSNSNSNSNSNSNSNSNSNSNSNDNDNDND6.3NDNDNDND - - -10/14/201556.6 FP 6.3 NS ND ND ND ND ND ND NS ND 8.5 NS NS ND ND NS FP FP ND NS NS NS - - -5/2/2016 97.9ND NS NS NS ND ND ND ND ND NS ND ND NS NS ND ND ND FP FP ND NS NS NS - - -10/5/20165.9NDNDNDNSNSNSNSNSNSNSNSNDNDNSNDNDNSNSNSNSNSNSNS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA9/1/2020NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA FP FP NA NA NA NA NA NA NA1,1-Dichloroethene6 6,0000.03 307 7,00080 2,1203 3,0000.7 700200 200,0000.6 600Page 3 of 4
MW-1A MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20 VE-1 RW-1 RW-2 RW-3 RW-7 RW-8 RW-9 NCDEQ Incident #9211Laboratory Methods & ParametersUNITS DATEMONITORING WELL IDNCAC 2L Groundwater Standard (µg/l)GCLs (µg/l)TABLE 6Groundwater Analytical ResultsElastic Fabrics of America3112 Pleasant Garden Road, Greensboro, NCFluorene12/19/2013NI FP ND 4.8J ND ND ND ND 18 ND ND ND ND ND ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/20146.4FPNSNSNSNSNSNSNSNSNSNSNSNSNS8.9NDND6.69.2ND11.8NDND - - -10/14/201572.8 FP 10.5 NS ND ND 5.7 ND 10.5 ND NS ND 15.4 NS NS 7.9 ND NS FP FP ND NS NS NS - - -5/2/2016129 6.0 NS NS NS ND ND ND 8.3 ND NS ND 15.6 NS NS 5.1 ND ND FP FP ND NS NS NS - - -10/5/20167.8 15.8 6.1 ND NS NS NS NS NS NS NS NS 8.6 ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS 5.7 NS 9.4 NS NS NS 22.2 ND NS 5.1 ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA9/1/2020NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA FP FP NA NA NA NA NA NA NA1-Methylnaphthalene12/19/2013NI FP320 160ND ND27011350ND ND ND1800ND ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/2014NA FP NS NS NS NS NS NS NS NS NS NS NS NS NS NA NA NA NA NA NA NA NA NA - - -10/14/2015NS FP NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS FP FP ND NS NS NS - - -5/2/2016NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS FP FP NS NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA9/1/2020ND NS NS NS NS NS ND NS ND NS NS NS ND NS NS ND ND NS FP FP NS NS NS NS ND ND ND2-Methylnaphthalene12/19/2013NI FP500 250ND ND4408.9J590ND ND ND2800ND ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/2014NA FP NS NS NS NS NS NS NS NS NS NS NS NS NS NA NA NA NA NA NA NA NA NA - - -10/14/2015NS FP NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS FP FP ND NS NS NS - - -5/2/2016NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS FP FP NS NS NS NS - - -10/5/2016ND ND ND ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/29/2017ND ND ND ND NS NS ND NS ND NS NS NS ND ND NS ND ND NS NS NS NS NS NS NS - - -6/7/2018ND ND ND ND NS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA9/1/2020NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA FP FP NA NA NA NA NA NA NANaphthalene12/19/2013NI FP490 200ND ND450ND560ND ND ND1100ND ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/2014 231FP NS NS NS NS NS NS NS NS NS NS NS NS NS190 120 112 191 214ND17.3 27.4 7.5---10/14/2015 484FP53NS ND ND236ND202ND NS ND134NS NS240ND NS FP FP ND NS NS NS - - -5/2/2016 429 42.9NS NS NS ND170ND400ND NS ND194NS NS244ND222FP FP ND NS NS NS - - -10/5/2016 160 28.6 190 53.8NS NS NS NS NS NS NS NS296ND NS212 57.9NS NS NS NS NS NS NS - - -6/29/2017 175ND70.9 23.6NS NS183NS370NS NS NS234ND NS169 118NS NS NS NS NS NS NS - - -6/7/2018 66.3 24.5 35.5ND NS NS221NS NS NS NS NS NS NS NS234 43.7NS148 216NS NS NS NS - - -7/2/2019NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA9/1/2020NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA FP FP NA NA NA NA NA NA NAPhenanthrene12/19/2013NI FP 24 4.8J ND ND 15 4.2J 18 ND ND ND370ND ND NS NI NI NI NI NI NI NS NS - - -ug/l 7/30/20145.6FPNSNSNSNSNSNSNSNSNSNSNSNSNS11.6NDND8.311ND17.8NDND - - -10/14/2015142 FP 13.1 NS ND ND ND ND 10.8 ND NS ND 18.5 NS NS 11.6 ND NS FP FP ND NS NS NS - - -5/2/2016 2607.2 NS NS NS ND ND ND 7.7 ND NS ND 21.7 NS NS 5.6 ND ND FP FP ND NS NS NS - - -10/5/20168.033.8NDNDNSNSNSNSNSNSNSNS9.3NDNS5.1NDNSNSNSNSNSNSNS - - -6/29/201777.2 ND ND ND NS NS 5.6 NS 8 NS NS NS 25.8 ND NS 5.3 ND NS NS NS NS NS NS NS - - -6/7/2018ND ND NDNDNS NS ND NS NS NS NS NS NS NS NS ND ND NS ND ND NS NS NS NS - - -7/2/2019NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA9/1/2020NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA FP FP NA NA NA NA NA NA NANA=Not Analyzed for ParameND=Not Detected ND=Below Quantitation Limit of Method of AnalysisNI=Not InstalledFP=Free Product30099030125,00030125,000NS=Not Sampled66,000200410Page 4 of 4

GRAPHS

68.0070.0072.0074.0076.0078.0080.0082.000.000.501.001.502.002.506/7/20029/5/200212/19/20023/19/20036/10/20039/2/200312/9/20032/25/20046/10/20049/9/200412/14/200412/20/200512/14/20066/19/200712/3/20079/18/200812/22/200812/17/20099/9/201012/7/20106/3/201112/16/20116/27/201212/20/20126/25/201312/18/201312/19/201410/13/20155/2/201610/5/20166/29/20176/7/2018FP ThicknessGW ElevationElastic Fabrics of AmericaMW‐2 Free Product Thickness vs GW ElevationFP Thickness (ft.)GW Elevation (ft.)
70.00
72.00
74.00
76.00
78.00
80.00
82.00
84.00
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
7/30/2014 12/19/2014 10/13/2015 5/2/2016 10/5/2016 6/29/2017 6/7/2018 7/2/2019 9/1/2020
FP Thickness
GW Elevation
Elastic Fabrics of America
MW-19 Free Product Thickness vs GW Elevation
FP Thickness (ft.)GW Elevation (ft.)
68.00
70.00
72.00
74.00
76.00
78.00
80.00
82.00
84.00
86.00
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
FP Thickness
GW Elevation
Elastic Fabrics of America
MW-20 Free Product Thickness vs GW Elevation
FP Thickness (ft.)GW Elevation (ft.)

APPENDIX A

APPENDIX B

APPENDIX C

Standard Field Procedures: Revision 10.6 Page 1
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
Standard Field Procedures
Pyramid Environmental & Engineering, P.C.
________________________________________________________________________

1.0 Equipment Decontamination

Equipment decontamination is essential to assure representative environmental samples
are collected and to eliminate the potential for cross-contamination between sample points.
Pyramid strives to clean all field equipment prior to leaving the office; however, field
decontamination is still required on most projects. The procedures for decontamination of
water level probes, hand augers, sampling probes, trowels, and other field equipment are
listed below.

1.1 EPA Region IV Decontamination Procedures
Drilling and soil sampling equipment is decontaminated prior to each use using a pressure
washer or steam cleaner. Reusable sampling equipment (hand augers, sampling probes,
trowels, split spoon samplers, water sampling equipment, etc.…) are decontaminated using
the general procedure described below. • Wash with non-phosphate detergent, water, & brush to remove particulate matter
• Rinse with tap water
• Rinse with 10 percent nitric acid solution (only if sampling for metals)
• Rinse with de-ionized water
• Rinse with pesticide-grade isopropyl alcohol
• Rinse with de-ionized water
• Air-dry as long as possible
The level of decontamination used is appropriate to the analytical parameters selected and
the material of the sampling device being used for sampling. For example, if metals analyses
are required, then the 10 % nitric acid solution is used for decontamination of stainless-steel
equipment. Pyramid uses de-ionized or distilled water for decontamination. Equipment that
is not used immediately after decontamination is wrapped in aluminum foil prior to storage.

2.0 Soil Borings & Sampling
2.1 Soil Borings
Soil borings are used by Pyramid to investigate and characterize the subsurface at sites.
Soil borings provide information concerning soil types and density, depth to refusal, depth
to bedrock, organic vapors that may be present, and can be used to obtain samples for
laboratory analysis.
Standard Field Procedures: Revision 10.6 Page 2
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
Pyramid conducts borings in several different ways, using hand augers, direct-push
equipment (Geoprobe), sample probes, split-spoon samplers (ASTM D 1586-84), auger
drilling, air drilling, and Vibro-Core. The following procedures are used by Pyramid
Environmental when performing soil borings:
1. Soil boring locations are chosen, and the ULOCO utility locating service is called to
mark all public utilities. Pyramid locates private utilities at many project sites using
Pyramid locating equipment, or uses a private utility locating service.

2. Down hole drilling equipment is cleaned prior to use and between borings using
pressure washing or steam cleaning. Additional decontamination procedures in
Section 1.1 are used for sampling tools such as split spoons or direct-push points.

3. Soil borings are advanced using direct-push, drilling rigs, hand augers, or other
appropriate means. Near-surface soil samples may also be collected using stainless
steel push probes, shovels, scoops, or other sampling devices.

4. Soil samples are normally collected at a minimum of 5-foot intervals. Each sample is
divided into two parts. Soil samples for laboratory analyses are jarred from the initial
sample volume. The remaining soil is stored in a sealed container for headspace
analysis and geological description.

5. After screening the soil with the field instruments, each soil sample is described by
the field geologist and a geologic description is recorded in project documentation.

6. Soils are typically described in the field by the project geologist or soil scientist and
are classified according to the Unified Soil Classification System (ASTM D 2488-84).

7. Soil samples selected for laboratory analysis are placed in properly prepared,
laboratory supplied containers and immediately packed in a cooler on ice. Sample
custody is maintained using standard chain-of-custody (COC) procedures through
delivery to the analytical laboratory.

8. Soil borings, which are not completed as monitoring wells, are grouted using a
Portland cement, bentonite, or backfilled with soil cuttings.

9. Soil cuttings are generally spread near the soil boring or monitoring well location as
directed by State regulatory managers. Drill cuttings are drummed (containerized)
where site conditions or regulatory requirements prohibit spreading cuttings, and
are disposed off-site (after waste determination is made).

Standard Field Procedures: Revision 10.6 Page 3
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
2.2 Soil Headspace Screening
Soil samples are routinely screened for volatile organic compounds (VOCs) which may be an
indication of organic or petroleum hydrocarbon contamination. The typical screening
procedure includes immediately transferring the soil from the sampling devices to a sealed
container (sealed 1-gallon Ziplock plastic bag). The soil container is filled approximately
halfway with soil and sealed. This creates headspace above the soil in which VOCs may
accumulate. The container is allowed to stand for 5 to 15 minutes for the VOCs to equilibrate
in the headspace of the container. The headspace of the container is then screened using a
calibrated organic vapor analyzer (PID or FID). The screening is conducted by cracking the
seal only enough to allow insertion of the probe into the headspace so as not to dilute the
sample. In most cases where the contaminant of concern includes volatile organics, the
highest or “Peak“ field-screening result is documented for each sample. The soil samples
showing the highest reading from each boring are typically selected for laboratory analysis.

2.3 Soil Sample Collection for Laboratory Analysis
After the targeted depth has been reached, soil samples are collected using a variety of
sampling devices. Soil sample devices used include split-spoons, stainless-steel hand augers,
stainless-steel push-probes and sampling scoops, and directly from the center of the
excavator bucket. The sample technician uses disposable nitrile gloves, which are changed
between samples to avoid cross-contamination of samples, and each sampling device is
decontaminated prior to use.

Only laboratory provided containers are used for sample collection. Samples are collected
in accordance with the preservation methods required by the requested analytical method.
Samples are handled as little as possible and preserved in the field as specified for the
analytical method. The samples are stored and transported to the laboratory in an insulated
cooler chilled to approximately 4 degrees centigrade. The samples are labeled with a
minimum of the following information: Pyramid, project name or number, sample
identification, date collected, sampler name, and analysis requested. Sample custody is
maintained using standard chain-of-custody procedures through delivery to the analytical
laboratory. Notes of the sampling events are recorded in project documentation.
Incremental sampling methodology (ISM) is a structured composite sampling and
processing protocol that reduces data variability and provides a reasonably unbiased
estimate of mean contaminant concentrations in a volume of soil targeted for sampling.
ISM provides representative samples of specific soil volumes defined as decision units
(DUs) by collecting numerous increments of soil (typically 30–100 increments) that are
combined, processed, and subsampled according to specific protocols. ISM Sampling will
be further explained in a site-specific Work Plan documents.
Pyramid will contract an on-site laboratory for immediate analyses as needed.
Standard Field Procedures: Revision 10.6 Page 4
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
2.4 Sediment Sample Collection for Laboratory Analysis
Near surface sediment may be present in a surface water ditch, stream, or dry intermittent
stream bed. Sediment samples are typically soil related samples and may be collected with
a variety of sampling tools. Pyramid will use stainless-steel samplers which have been
decontaminated according to the procedure detailed in section 1.1 of this document. After
the sediment samples are collected, the location, depth, conditions, and sample
composition are documented in the project records. The samples will be screened in the
field to detect volatile organic vapors and visually examined for contamination. Sediment
samples will be preserved in laboratory prepared containers in accordance with sample
preservation recommendation of the analytical laboratory. Samples are handled as little as
possible and preserved in the field as specified for the analytical method. The samples are
stored and transported in an insulated cooler chilled to approximately 4 degrees centigrade.
The samples are labeled with a minimum of the following information: Pyramid, project
name or number, sample identification, date collected, sampler name, and analysis
requested. Sample custody is maintained using standard chain-of-custody procedures
through delivery to the analytical laboratory. Documentation of the sampling events are
recorded in the project documentation.

3.0 Direct-Push Sampling Procedures

Direct-push sampling techniques have been used at many sites to collect soil and
groundwater samples rapidly and inexpensively. Track-mounted, direct-push rigs can access
hard to reach areas and allow borings and monitoring wells to be installed. For soil sampling,
typically, the direct-push steel drive tube is decontaminated using a pressure washer, and a
new plastic sample liner is inserted in the steel drive tube to collect soil samples. The soil
samples are collected in new polyethylene sample tubes within the steel drive tube. The soil
samples are then extracted from the polyethylene liner and preserved as required for
laboratory analysis.

For groundwater sampling, a steel probe with a retractable screen section and tubing are
driven to depth and the screened section is opened to allow groundwater to enter the
tubing. The water samples are withdrawn using new polyethylene and Teflon® tubing with
either a decontaminated stainless-steel check ball, or peristaltic pump. The groundwater
sample is placed directly into the appropriate laboratory containers and sealed immediately.
To prevent cross-contamination of samples, new disposable tubing is used for each
groundwater sample point. Disposable nitrile gloves are worn by field personnel during
development and groundwater sampling, and gloves are changed between samples.
Groundwater sampling procedures are detailed more in Section 5.0, as appropriate for each
analytical method.

Standard Field Procedures: Revision 10.6 Page 5
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
4.0 Monitoring Well Installation

Groundwater monitoring wells are installed in many subsurface environments; Coastal
Plain, sedimentary, Piedmont saprolite, weathered rock formations, and mountain terrains
to list a few. Formations encountered include unconsolidated and consolidated sediments,
fill material, organic soils, saprolitic soils, weathered rock formations, and bedrock.
Groundwater monitoring wells provide a stable sampling point at discrete intervals within
the confined or unconfined aquifers. Monitoring wells are installed for a number of reasons,
and are typically installed as 1-inch, 2-inch, 4-inch, or 6-inch diameter wells. Construction
may be of PVC, stainless-steel, HDPE, or other appropriate materials. The following
procedures are used by Pyramid when performing borings and monitoring well installations. • If required, monitoring well permits are obtained from the State, County, or City.
• Boring and monitoring well locations are chosen, and utilities are marked by the
public utility locating company. As needed, the locations may be scanned for utilities
by Pyramid using our locating equipment, or a private utility locating company.
• In selecting a drill site, care is taken to avoid overhead power lines, and subsurface
utilities whenever possible.
• Down-hole drilling equipment is decontaminated prior to use and between borings.
• Borings are advanced using direct-push, drilling rigs, hand augers, solid-stem augers,
hollow-stem augers, air rotary drilling, or air hammer drilling.
• Soil samples are normally collected at a minimum of 5-foot intervals. Each sample is
divided into two parts. Soil samples for laboratory analyses are jarred from the initial
sample volume. The remaining soil is stored in a sealed container for headspace
analysis with an organic vapor analyzer (PID or FID).
• After screening the soil with the field instruments, each soil sample is described by
the field geologist and a geologic description is recorded in the project
documentation.

Type II monitoring wells are usually installed using 2-inch diameter schedule 40 PVC riser
and 2-inch, 0.010-inch machine slotted well screen. The screened interval length varies with
the geologic site conditions, expected variations in water level, and the investigation goals
for the well. The well construction details are presented on the boring log.

Type III wells are usually installed as double-cased wells to monitor the deeper portions of
the aquifer. The first casing is usually a 5 to 6-inch diameter solid PVC well casing drilled to
bedrock or an appropriate depth within the surficial zone. The 5 to 6-inch diameter casing
is then set and grouted in the borehole. After the cement grout has set for 12 to 24-hours,
the borehole is completed to the desired depth using air rotary drilling or air hammer
drilling. The inside casing of the Type III monitoring well is usually constructed of 2-inch
diameter SCH 40 PVC casing and 2-inch diameter SCH 40 PVC 0.010-inch slotted well screen.

Standard Field Procedures: Revision 10.6 Page 6
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
In most applications, a sand filter pack of #2 well sand (or appropriately sized well sand).
Sand is typically installed to a level of 2 feet above the top of the screen in each well.
A minimum 2-foot thick bentonite seal is usually placed on top of the filter pack and
hydrated with de-ionized or distilled water. The remaining annular space of a typical well is
backfilled to grade with a Portland cement/bentonite grout. In monitoring wells where the
water table is close to surface, the amount of sand above the screen and bentonite will be
reduced to allow for a minimum of 2–3 feet of cement grout in the well bore.

At the surface, each well is secured with a locking cap and a steel well protector. Depending
on the surface conditions, the well may be protected by a flush-mounted manhole set in the
surrounding surface in a concrete pad. In some cases, stick-up well protectors are used to
secure the well and allow the well to be more easily located in wooded or open areas.

Each groundwater monitoring well is developed by surging, pumping, or bailing to remove
sediment before sampling. Water removed during development is managed according to
individual State regulatory guidance.

5.0 Water Sampling Procedures

Pyramid relies on water sampling as a primary method for assessment of subsurface
groundwater conditions. Water sampling typically includes sampling groundwater from
monitoring wells, water supply wells, surface water bodies, stormwater, waste sumps, etc.
The following provides typical sampling procedures for the water samples.

5.1 Monitoring Wells
Prior to sampling each monitoring well, depth to liquid and/or liquids and total well depth
are measured using a properly decontaminated electric interface probe. If phase-separated
petroleum product is detected in a well, the product measurements are recorded along with
the water level in each well. This information is recorded in the field record and the volume
of the water in the well casing is calculated. To purge stagnant water from each monitoring
well, three to five well casing volumes of water are removed from each well prior to
sampling. Alternately, for low-flow sampling, development continues until the field
parameters (pH, conductivity, dissolved oxygen, ORP, and temperature) have stabilized.
If the water in the monitoring well is removed until the well is dry, then the well is sampled
thereafter. Water removed from wells during purging is managed in accordance with
individual State regulatory guidance.

Groundwater samples are typically collected using a new disposable polyethylene bailer and
a new length of nylon cord. To prevent cross-contamination of samples between wells, a
new disposable bailer is used for each well. The bailer is lowered into the groundwater
Standard Field Procedures: Revision 10.6 Page 7
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
slowly and removed slowly. A new pair of disposable gloves is worn by field personnel
during purging and sampling, and is changed between wells. In the case of small diameter
monitoring wells or direct-push water samples, water samples may be collected using a
peristaltic pump and new polyethylene tubing. Another method is to use a segment of new
sampling tubing and a stainless-steel check ball to create a “Tube Bailer”.
Groundwater samples selected for laboratory analysis are immediately placed in properly
prepared, laboratory supplied containers and preserved in a cooler on ice. Samples are
maintained under standard chain-of-custody procedures from sample collection through
laboratory analysis.

5.2 Water Supply Well Sampling
Prior to sampling each water supply well, the well owner is contacted to provide access to
the well. The well owner is interviewed to locate the faucet closest to the well for sampling.
If there are no faucets located on the well, then water from an outside faucet at the building
is usually sampled. If there are no outside faucets available, then the water samples are
collected from an inside faucet. The location of the sample is recorded in the field record.
The owner is interviewed to see if there is a chlorination system on the well, or if the well
has been recently chlorinated. Recent chlorination could affect the laboratory detection
limits. In most cases, the samples are preserved using sodium thiosulfate or ascorbic acid to
remove the interactions of chlorine, which may be present in the samples.
If the well is treated with a Point-of-Entry (POE) treatment system, then the “raw” water
sample must be collected before the treatment system. An associated treated water sample
is usually collected as well to demonstrate effective treatment.
To purge stagnant water from the water supply well system, the faucet is allowed to run on
full stream for a minimum of 15 minutes. The aerator is removed from the tap if one is
present. Water removed from wells during purging is managed according to regulatory
standards.
Water supply well samples are collected using appropriate laboratory prepared containers
for each analysis. The analytical methods selected will vary with the contaminant of
interest. To prevent cross-contamination of samples between wells, disposable nitrile gloves
are worn by field personnel during purging and sampling and are changed between wells. It
is possible that samples may be required at several places within the water supply system.
The samples are collected accordingly and labeled to show the source and location sampled.
Supply well samples selected for laboratory analysis are immediately placed in properly
prepared, laboratory supplied containers and packed in a cooler on ice, and chilled to
approximately 4 degrees Celsius. Samples are maintained under standard chain-of-custody
procedures from sample collection through laboratory analysis.

Standard Field Procedures: Revision 10.6 Page 8
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
5.3 Surface Water Sampling
Surface water samples are obtained using several techniques including use of sample
bailers, discrete depth interval samples, sample scoops, from boats, bridges, or wading into
a stream. Caution should always be used when sampling surface water to ensure that the
water collected is representative of the site conditions. Since stream or open water sampling
is transient, careful documentation of the site conditions, weather, surface conditions,
sediment, algal or biological material, etc. is required.

In many studies, additional samples from upstream and downstream of the desired sample
point are required. Surface water sampling must be planned to reflect the site-specific
conditions during sampling. The general procedures are similar to the supply well sampling
procedures detailed above. Appropriate laboratory prepared containers are used for each
analysis. The analytical methods selected will vary with the contaminant of interest.

To prevent cross-contamination of samples between samples, disposable nitrile gloves are
worn by field personnel during purging and sampling and are changed between samples. It
is possible that samples may be required at several places along the stream to check for
influences of up-stream facilities. Samples will be collected accordingly and labeled to show
the source and location sampled. Sample will always be collected upstream of the area
disturbed by the person sampling the stream. Surface water samples selected for laboratory
analysis are placed in properly prepared, laboratory supplied containers and immediately
packed in a cooler on ice. Samples are maintained under strict control using standard chain-
of-custody procedures through laboratory analysis.

6.0 Quality Assurance / Quality Control

The field and laboratory procedures listed above have been implemented on many sites
with excellent results. The procedures are often verified by an appropriate use of the
following environmental samples.

Trip Blanks ( or Travel blanks)
The Trip Blank (or travel blanks) are often used to verify that the environmental samples are
not impacted during shipping, and verify that the source of the glassware is not the source
of contamination. The trip blanks are preserved de-ionized water, collected in the
laboratory, and shipped with the sample containers to Pyramid or the site. The trip blank
remains in the sample cooler and is shipped back to the laboratory with the environmental
samples. The trip blank is most commonly analyzed for volatile organic compounds (VOCs),
and correspond to the target analyses.

Standard Field Procedures: Revision 10.6 Page 9
Pyramid Environmental & Engineering, P.C. Revision date 01-06-2020
Field Blanks
Field Blanks are quality assurance samples which are collected in the field to represent the
conditions present at the time the samples are collected. For water samples, the laboratory
containers are opened and filled in the field using de-ionized (or distilled) water from a
known source. The samples reflect any site conditions such as vapor sources which may
affect the water samples. The samples then travel to the laboratory with the other samples
for analysis. Comparison of the field blank results with the sample results may indicate a
pervasive site constituent detected in the samples.

Equipment Blanks
Equipment Blanks are used to verify whether the decontamination procedures used for the
sample equipment (or the new equipment) may have added any contaminants to the
sample during collection. If a non-disposable sampling device is used (such as a sampling
treir, scoop, hand auger, Teflon bailer, etc.…), then the decontamination of the sampling
device is usually verified using an equipment blank. The equipment blank is collected using
de-ionized (or distilled) water from a known source. The equipment is decontaminated,
allowed to air dry, the water is poured over (or through) the equipment, and a sample is
collected in the appropriate sample containers. The equipment blank samples are preserved
with the other environmental samples, and shipped for analyses for the target parameters.

Duplicate Samples
Duplicate Samples are used to verify the sampling procedures and evaluate laboratory
analysis variability. The duplicate samples may be collected from soil, sediment, air, surface
water, wastes, or groundwater. These samples are collected and sent to the laboratory as
blind samples to have maximum effectiveness. Duplicate samples are generally analyzed for
the same analytical methods as the actual environmental sample for direct comparison.
Duplicate samples may also be split between two different laboratories to provide
verification of laboratory detection limits or quality process verification.

Background Samples
Background Samples are a tool for comparison of general site conditions with source area
site conditions. Background samples may be soil, sediment, air, surface water, waste, or
groundwater. The goal is to reflect conditions outside the expected area of contamination.
These samples are collected outside the expected area of contamination and sent to the
laboratory for analyses. Background samples are generally analyzed for the same analytical
methods as the source area environmental samples for direct comparison. Background
samples for metals comparison are common types of background samples used in
environmental investigations.

APPENDIX D

Table 2 -Laboratory Data Summary -Soil Analysis
Elastic Fabric of America ;1 ----
Guilford County
Triangle Project No. 214-0109 --
i-Sa~ple ---..... -=: --~~~ ---------_._---
Sample Sample TPH 3SS0 TPH S030 Area Remarks ----. ---------~------
Date Number Depth (mg/kg) (mg/kg) ---------------
.---------
8112/92 HB-l IO_S BDL[IO] BDL[S] TE-I Tank Closure Report c--------
8/12/92 HB-2 10 S30 BDL[S] TE-I TankClosure Report
ffizl92
-~
HB-3 8 BDL[IO] BDL[S] TE-I !ank Closure Report ------------
8112/92 HB-4 IO_S BDL[IO] BDL[S] TE-I Tank Closure Report ------_ .... -----.-
8/12/92 HB-S 10_S BDL[IO] BDL[S] TE-I Tank Closure Report --
8/12/92 HB-6 10_S 140000 1900 TE-I La~_ data disputed -8120/92 HB-7 II 3300 76 TE-2 Tank Closure Report -. ---
8120192 HB-8 II 2100 26 TE-2 Tank Closure Report
8/20/92 HB-IO 13 10000 61 TE-2 Tank Closure Report -----
8/24/92 BS-9 13 29000 130 TE-2 Tank Closure Report -
8124/92 BS-II 13 10000 140 TE-2 TankClosure R()port --._----
11I2S/92 HA-12 II BDL(I] BDL[I] TE-I Soil Sampling Report
11I2S/92 HA-13 II BDL[I] BDL(I] TE-I Soil Sampling Report
4/29/92 MW-l IS 2128 49.4 TE-2 Soil & GW Assessment Report
4/29/92 MW-I 20 1110 30.4 TE-2 Soil & GW Assessment Report
1113193 MW-2 14 8180 BDL(72) TE-2 Current Assessment
1113/93 MW-2 [9 [2300 BDL(78) TE-2 Current Assessment --
[ 113/93 MW-3 [9 [980 BDL[IS] TE-2/TE-[ Current Assessment -1113193 MW-4 19 2480 BDL[72] TE-I Current Assessment ---
S12194 SB-11MW-8 [9 2810 BDL(2) oifsite, south Current Assessment -
S/2/94 SB-2 19 3730 BDL(2) south side Current Assessment -S12194 SB-3 [9 [210 BDL[2] south side Current Assessment ----
S12194 SB-4 19 BI:!L[ [) BDL(2) south side Current Assessment -
north side
-
S/3/94 SB-S [9 BDL[[) BDL[2) Current Assessment
S/3/94 SB-6 [0 BDL[[) BDL[2] north side Current Assessment -------
S/3/94 SB-7 22 8040 BDL(2) north side Current Assessment
S/2/94 MW-S 10 31 BDL[2) oifsite, south Current Assessment
S12194 MW-6 19 BDL[I] BDL(2) south side Current Assessment ----
S/2/94 MW-7 24 6220 BDL[2] north side Current Assessment
S/3/94 MW-9 [9 SI60 BDL[2] north side Current Assessment _ .. _----9/6/94 SB-IO 6 ~DL[I) not meas north side Current Assessment .-
9/6/94 MWIO I I 236 not meas north side Current Assessment -
9114/94 MW-II [4_S [0_ [ not meas north side Current Assessment ------------
9114/94 MW-[2 19 16.3 not meas north side Current Assessment
9114/94 MW-13 20 SiNO not meas south side Current Assessment
----
SSE final Clean-Up Level 80 40 Catagory C or D site ----.----r-----_.-
BDL = Below Detection Limits --
Numbers in brackets [ ) are minimum detection limits

APPENDIX E

APPENDIX F

Pyramid Environmental & Engineering, P.C.
FIELD DRILLING RECORD
PROJECT NAME:
PROJECT NUMBER:
BORING/WELL NO:
SITE LOCATION: BORING/WELL
LOCATION:
START DATE: COMPLETED:
GEOLOGIST:DRILLER:
DRILL METHOD: SAMPLE METHOD:
BORING DIA: CASING DIA:
TOTAL DEPTH: CASING DEPTH:
DEPTH
(ft.)
VISUAL MANUAL SOIL CLASSIFICATION
COLOR, TEXTURE, STRUCTURE, CONSISTENCY, ODOR, ETC.
OVA RESULTS
PERCENT RECOVERY
BLOW COUNTS
MONITORING WELL INFORMATION (IF APPLICABLE)
RISER LENGTH (ft) DEPTH (ft) DIAMETER (in) MATERIAL .
SCREEN LENGTH (ft) DEPTH (ft) DIAMETER (in) MATERIAL .
DEPTH TO TOP OF SAND BAGS OF SAND .
DEPTH TO TOP SEAL BENTONITE USED BAGS OF CEMENT USED .
Elastic Fabrics of America RW-7
Pleasant Garden Road,
Greensboro, NC
RW-7
06/27/17 06/27/17
Higgins Ransier Environmental
Hollow Stem Augers HSA
12-inch 4-inch
40 feet 40 feet
0-10 PVC
10-40'PVC
8'
6' 7
Orange-brown silty Sand ( SM ) medium grained sand with some gravel
Tan sandy Silt ( ML )
Orange-brown clayey Silt ( ML ) w/ little sand
Tan sandy Silt ( ML )
Orange-brown silty Sand ( SM ) medium grained sand with some gravel
Orange-brown clayey Silt ( ML ) w/ little sand
Light orange-brown clayey Silt ( ML ) w/ little sand
Orange-brown clayey Silt ( ML ) with some sand
35' to 37'
40 feet
23' to 26'
30' to 32'
14' to 16'
18' to 21'
3' to 5'
8' to 10'
PID=7ppm
PID=7ppm
PID=7ppm
PID = 259 ppm
PID = 228 ppm
PID = 90 ppm
PID = 21 ppm
PID = 14 ppm
10
30'
4"
4"
20
6
Pyramid Environmental & Engineering, P.C.
FIELD DRILLING RECORD
PROJECT NAME:
PROJECT NUMBER:
BORING/WELL NO:
SITE LOCATION: BORING/WELL
LOCATION:
START DATE: COMPLETED:
GEOLOGIST:DRILLER:
DRILL METHOD: SAMPLE METHOD:
BORING DIA: CASING DIA:
TOTAL DEPTH: CASING DEPTH:
DEPTH
(ft.)
VISUAL MANUAL SOIL CLASSIFICATION
COLOR, TEXTURE, STRUCTURE, CONSISTENCY, ODOR, ETC.
OVA RESULTS
PERCENT RECOVERY
BLOW COUNTS
MONITORING WELL INFORMATION (IF APPLICABLE)
RISER LENGTH (ft) DEPTH (ft) DIAMETER (in) MATERIAL .
SCREEN LENGTH (ft) DEPTH (ft) DIAMETER (in) MATERIAL .
DEPTH TO TOP OF SAND BAGS OF SAND .
DEPTH TO TOP SEAL BENTONITE USED BAGS OF CEMENT USED .
Elastic Fabrics of America RW-8
Pleasant Garden Road,
Greensboro, NC
RW-8
06/26/17 06/26/17
Higgins Ransier Environmental
Hollow Stem Augers HSA
12-inch 4-inch
40 feet 40 feet
0-10 PVC
10-40'PVC
8'
6' 7
Red-Orange clayey silt with mica ( ML ) ; some gravel
Orange-red clayey silt with mica ( ML ) rolls 1/2" beads
Light Grey-Brown micaceous clayey Silt ( ML ) rolls 1/2" beads
Orange-red clayey silt with mica ( ML ) rolls 1/2" beads
Red-orange clayey silt with mica ( ML ) rolls 1/2" beads
Light Orange-grey micaceous Silt ( ML ) rolls 1/2" beads
Light Grey-Brown micaceous Sandy Silt ( ML ) rolls 1/2" beads
Orange-Brown micaceous Sandy Silt ( ML ) rolls 1/2" beads
35' to 37'
40 feet
23' to 26'
30' to 32'
14' to 16'
18' to 21'
3' to 5'
8' to 10'
PID = 10 ppm
PID = 10 ppm
PID = 73 ppm
PID = 135 ppm
PID = 360 ppm
PID = 119 ppm
PID = 62 ppm
PID = 79 ppm
10
30'
4"
4"
20
6
Pyramid Environmental & Engineering, P.C.
FIELD DRILLING RECORD
PROJECT NAME:
PROJECT NUMBER:
BORING/WELL NO:
SITE LOCATION: BORING/WELL
LOCATION:
START DATE: COMPLETED:
GEOLOGIST:DRILLER:
DRILL METHOD: SAMPLE METHOD:
BORING DIA: CASING DIA:
TOTAL DEPTH: CASING DEPTH:
DEPTH
(ft.)
VISUAL MANUAL SOIL CLASSIFICATION
COLOR, TEXTURE, STRUCTURE, CONSISTENCY, ODOR, ETC.
OVA RESULTS
PERCENT RECOVERY
BLOW COUNTS
MONITORING WELL INFORMATION (IF APPLICABLE)
RISER LENGTH (ft) DEPTH (ft) DIAMETER (in) MATERIAL .
SCREEN LENGTH (ft) DEPTH (ft) DIAMETER (in) MATERIAL .
DEPTH TO TOP OF SAND BAGS OF SAND .
DEPTH TO TOP SEAL BENTONITE USED BAGS OF CEMENT USED .
Elastic Fabrics of America RW-9
Pleasant Garden Road,
Greensboro, NC
RW-9
06/26/17 06/26/17
Higgins Ransier Environmental
Hollow Stem Augers HSA
12-inch 4-inch
40 feet 40 feet
0-10 PVC
10-40'PVC
8'
6' 7
Orange-Red sandy silt ( ML ) with gravel
Grey-tan micaceous Silt ( ML )
Grey-tan micaceous clayey Silt ( ML ) rolls 1/2" beads
Grey-tan micaceous Silt ( ML )
Red-orange clayey silt ( ML ) rolls 1/2" beads
Grey-tan micaceous Silt ( ML ) rolls 1/2" beads
Grey-tan micaceous clayey Silt ( ML ) rolls 1/2" beads
Grey-tan micaceous Silt ( ML ) rolls 1/2" beads
35' to 37'
40 feet
23' to 26'
30' to 32'
14' to 16'
18' to 21'
3' to 5'
8' to 10'
PID=0.2ppm
PID=0.6ppm
PID = 120 ppm
PID = 350 ppm
PID = 260 ppm
PID = 80 ppm
PID = 55 ppm
PID = 102 ppm
10
30'
4"
4"
20
6

APPENDIX G

#=CL#
September 15, 2020
LIMS USE: FR - MIKA TRIFUNOVIC
LIMS OBJECT ID: 92493928
92493928
Project:
Pace Project No.:
RE:
Mr. Mika Trifunovic
Pyramid Environmental
P.O. Box 16265
Greensboro, NC 27416
EFA #2020-165
Dear Mr. Trifunovic:
Enclosed are the analytical results for sample(s) received by the laboratory on September 03, 2020. The results relate only
to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Amanda Payne
[e-mail]
Project Manager
[phone]
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 1 of 41
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92493928
EFA #2020-165
Pace Analytical Services Charlotte
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
Louisiana/NELAP Certification # LA170028
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Certification #: 99006001
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Virginia/VELAP Certification #: 460221
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 41
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92493928
EFA #2020-165
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92493928001 MW-1A SM 6200B 63 PASI-CCL
92493928002 MW-7 SM 6200B 63 PASI-CCL
92493928003 MW-9 SM 6200B 63 PASI-CCL
92493928004 MW-13 SM 6200B 63 PASI-CCL
92493928005 MW-16 SM 6200B 63 PASI-CCL
92493928006 MW-17 SM 6200B 63 PASI-CCL
92493928007 RW-7 SM 6200B 63 PASI-CCL
92493928008 RW-8 SM 6200B 63 PASI-CCL
92493928009 RW-9 SM 6200B 63 PASI-CCL
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 3 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-1A Lab ID:92493928001 Collected:09/01/20 15:50 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 09/14/20 17:20 71-43-20.50 1
Bromobenzene ND ug/L 09/14/20 17:20 108-86-10.50 1
Bromochloromethane ND ug/L 09/14/20 17:20 74-97-50.50 1
Bromodichloromethane ND ug/L 09/14/20 17:20 75-27-40.50 1
Bromoform ND ug/L 09/14/20 17:20 75-25-20.50 1
Bromomethane ND ug/L 09/14/20 17:20 74-83-95.0 1
n-Butylbenzene ND ug/L 09/14/20 17:20 104-51-80.50 1
sec-Butylbenzene ND ug/L 09/14/20 17:20 135-98-80.50 1
tert-Butylbenzene ND ug/L 09/14/20 17:20 98-06-60.50 1
Carbon tetrachloride ND ug/L 09/14/20 17:20 56-23-50.50 1
Chlorobenzene ND ug/L 09/14/20 17:20 108-90-70.50 1
Chloroethane ND ug/L 09/14/20 17:20 75-00-31.0 1
Chloroform ND ug/L 09/14/20 17:20 67-66-30.50 1
Chloromethane ND ug/L 09/14/20 17:20 74-87-31.0 1
2-Chlorotoluene ND ug/L 09/14/20 17:20 95-49-80.50 1
4-Chlorotoluene ND ug/L 09/14/20 17:20 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 09/14/20 17:20 96-12-81.0 1
Dibromochloromethane ND ug/L 09/14/20 17:20 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 09/14/20 17:20 106-93-40.50 1
Dibromomethane ND ug/L 09/14/20 17:20 74-95-30.50 1
1,2-Dichlorobenzene 8.8 ug/L 09/14/20 17:20 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 09/14/20 17:20 541-73-10.50 1
1,4-Dichlorobenzene 1.4 ug/L 09/14/20 17:20 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 09/14/20 17:20 75-71-80.50 1
1,1-Dichloroethane ND ug/L 09/14/20 17:20 75-34-30.50 1
1,2-Dichloroethane ND ug/L 09/14/20 17:20 107-06-20.50 1
1,1-Dichloroethene ND ug/L 09/14/20 17:20 75-35-40.50 1
cis-1,2-Dichloroethene 45.1 ug/L 09/14/20 17:20 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 09/14/20 17:20 156-60-50.50 1
1,2-Dichloropropane ND ug/L 09/14/20 17:20 78-87-50.50 1
1,3-Dichloropropane ND ug/L 09/14/20 17:20 142-28-90.50 1
2,2-Dichloropropane ND ug/L 09/14/20 17:20 594-20-70.50 1
1,1-Dichloropropene ND ug/L 09/14/20 17:20 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 09/14/20 17:20 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 09/14/20 17:20 10061-02-60.50 1
Diisopropyl ether ND ug/L 09/14/20 17:20 108-20-30.50 1
Ethylbenzene 4.5 ug/L 09/14/20 17:20 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 09/14/20 17:20 87-68-32.0 1
Isopropylbenzene (Cumene)2.6 ug/L 09/14/20 17:20 98-82-80.50 1
Methylene Chloride ND ug/L 09/14/20 17:20 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 09/14/20 17:20 1634-04-40.50 1
Naphthalene 137 ug/L 09/14/20 17:20 91-20-32.0 1
n-Propylbenzene 3.1 ug/L 09/14/20 17:20 103-65-10.50 1
Styrene ND ug/L 09/14/20 17:20 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 09/14/20 17:20 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 09/14/20 17:20 79-34-50.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-1A Lab ID:92493928001 Collected:09/01/20 15:50 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene 3.6 ug/L 09/14/20 17:20 127-18-40.50 1
Toluene ND ug/L 09/14/20 17:20 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 09/14/20 17:20 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 09/14/20 17:20 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 09/14/20 17:20 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 09/14/20 17:20 79-00-50.50 1
Trichloroethene ND ug/L 09/14/20 17:20 79-01-60.50 1
Trichlorofluoromethane ND ug/L 09/14/20 17:20 75-69-41.0 1
1,2,3-Trichloropropane 0.70 ug/L 09/14/20 17:20 96-18-40.50 1
1,2,4-Trimethylbenzene 68.3 ug/L 09/14/20 17:20 95-63-60.50 1
1,3,5-Trimethylbenzene 24.7 ug/L 09/14/20 17:20 108-67-80.50 1
Vinyl chloride ND ug/L 09/14/20 17:20 75-01-41.0 1
m&p-Xylene 2.2 ug/L 09/14/20 17:20 179601-23-11.0 1
o-Xylene 3.7 ug/L 09/14/20 17:20 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)89 %09/14/20 17:20 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %09/14/20 17:20 460-00-470-130 1
Toluene-d8 (S)99 %09/14/20 17:20 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-7 Lab ID:92493928002 Collected:09/01/20 15:00 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 4.8 ug/L 09/14/20 18:51 71-43-22.0 4
Bromobenzene ND ug/L 09/14/20 18:51 108-86-12.0 4
Bromochloromethane ND ug/L 09/14/20 18:51 74-97-52.0 4
Bromodichloromethane ND ug/L 09/14/20 18:51 75-27-42.0 4
Bromoform ND ug/L 09/14/20 18:51 75-25-22.0 4
Bromomethane ND ug/L 09/14/20 18:51 74-83-920.0 4
n-Butylbenzene ND ug/L 09/14/20 18:51 104-51-82.0 4
sec-Butylbenzene ND ug/L 09/14/20 18:51 135-98-82.0 4
tert-Butylbenzene ND ug/L 09/14/20 18:51 98-06-62.0 4
Carbon tetrachloride ND ug/L 09/14/20 18:51 56-23-52.0 4
Chlorobenzene ND ug/L 09/14/20 18:51 108-90-72.0 4
Chloroethane ND ug/L 09/14/20 18:51 75-00-34.0 4
Chloroform ND ug/L 09/14/20 18:51 67-66-32.0 4
Chloromethane ND ug/L 09/14/20 18:51 74-87-34.0 4
2-Chlorotoluene ND ug/L 09/14/20 18:51 95-49-82.0 4
4-Chlorotoluene ND ug/L 09/14/20 18:51 106-43-42.0 4
1,2-Dibromo-3-chloropropane ND ug/L 09/14/20 18:51 96-12-84.0 4
Dibromochloromethane ND ug/L 09/14/20 18:51 124-48-12.0 4
1,2-Dibromoethane (EDB)ND ug/L 09/14/20 18:51 106-93-42.0 4
Dibromomethane ND ug/L 09/14/20 18:51 74-95-32.0 4
1,2-Dichlorobenzene ND ug/L 09/14/20 18:51 95-50-12.0 4
1,3-Dichlorobenzene ND ug/L 09/14/20 18:51 541-73-12.0 4
1,4-Dichlorobenzene ND ug/L 09/14/20 18:51 106-46-72.0 4
Dichlorodifluoromethane ND ug/L 09/14/20 18:51 75-71-82.0 4
1,1-Dichloroethane ND ug/L 09/14/20 18:51 75-34-32.0 4
1,2-Dichloroethane ND ug/L 09/14/20 18:51 107-06-22.0 4
1,1-Dichloroethene ND ug/L 09/14/20 18:51 75-35-42.0 4
cis-1,2-Dichloroethene ND ug/L 09/14/20 18:51 156-59-22.0 4
trans-1,2-Dichloroethene ND ug/L 09/14/20 18:51 156-60-52.0 4
1,2-Dichloropropane ND ug/L 09/14/20 18:51 78-87-52.0 4
1,3-Dichloropropane ND ug/L 09/14/20 18:51 142-28-92.0 4
2,2-Dichloropropane ND ug/L 09/14/20 18:51 594-20-72.0 4
1,1-Dichloropropene ND ug/L 09/14/20 18:51 563-58-62.0 4
cis-1,3-Dichloropropene ND ug/L 09/14/20 18:51 10061-01-52.0 4
trans-1,3-Dichloropropene ND ug/L 09/14/20 18:51 10061-02-62.0 4
Diisopropyl ether ND ug/L 09/14/20 18:51 108-20-32.0 4
Ethylbenzene ND ug/L 09/14/20 18:51 100-41-42.0 4
Hexachloro-1,3-butadiene ND ug/L 09/14/20 18:51 87-68-38.0 4
Isopropylbenzene (Cumene)5.3 ug/L 09/14/20 18:51 98-82-82.0 4
Methylene Chloride ND ug/L 09/14/20 18:51 75-09-28.0 4
Methyl-tert-butyl ether ND ug/L 09/14/20 18:51 1634-04-42.0 4
Naphthalene 399 ug/L 09/14/20 18:51 91-20-38.0 4
n-Propylbenzene 3.8 ug/L 09/14/20 18:51 103-65-12.0 4
Styrene ND ug/L 09/14/20 18:51 100-42-52.0 4
1,1,1,2-Tetrachloroethane ND ug/L 09/14/20 18:51 630-20-62.0 4
1,1,2,2-Tetrachloroethane ND ug/L 09/14/20 18:51 79-34-52.0 4
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-7 Lab ID:92493928002 Collected:09/01/20 15:00 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene 7.5 ug/L 09/14/20 18:51 127-18-42.0 4
Toluene ND ug/L 09/14/20 18:51 108-88-32.0 4
1,2,3-Trichlorobenzene ND ug/L 09/14/20 18:51 87-61-68.0 4
1,2,4-Trichlorobenzene ND ug/L 09/14/20 18:51 120-82-18.0 4
1,1,1-Trichloroethane ND ug/L 09/14/20 18:51 71-55-62.0 4
1,1,2-Trichloroethane ND ug/L 09/14/20 18:51 79-00-52.0 4
Trichloroethene ND ug/L 09/14/20 18:51 79-01-62.0 4
Trichlorofluoromethane ND ug/L 09/14/20 18:51 75-69-44.0 4
1,2,3-Trichloropropane ND ug/L 09/14/20 18:51 96-18-42.0 4
1,2,4-Trimethylbenzene 30.9 ug/L 09/14/20 18:51 95-63-62.0 4
1,3,5-Trimethylbenzene ND ug/L 09/14/20 18:51 108-67-82.0 4
Vinyl chloride ND ug/L 09/14/20 18:51 75-01-44.0 4
m&p-Xylene ND ug/L 09/14/20 18:51 179601-23-14.0 4
o-Xylene 18.9 ug/L 09/14/20 18:51 95-47-62.0 4
Surrogates
1,2-Dichloroethane-d4 (S)88 %09/14/20 18:51 17060-07-070-130 4
4-Bromofluorobenzene (S)95 %09/14/20 18:51 460-00-470-130 4
Toluene-d8 (S)99 %09/14/20 18:51 2037-26-570-130 4
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-9 Lab ID:92493928003 Collected:09/01/20 14:50 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 34.8 ug/L 09/12/20 08:57 71-43-22.0 4
Bromobenzene ND ug/L 09/12/20 08:57 108-86-12.0 4
Bromochloromethane ND ug/L 09/12/20 08:57 74-97-52.0 4
Bromodichloromethane ND ug/L 09/12/20 08:57 75-27-42.0 4
Bromoform ND ug/L 09/12/20 08:57 75-25-22.0 4
Bromomethane ND ug/L 09/12/20 08:57 74-83-920.0 4
n-Butylbenzene ND ug/L 09/12/20 08:57 104-51-82.0 4
sec-Butylbenzene ND ug/L 09/12/20 08:57 135-98-82.0 4
tert-Butylbenzene ND ug/L 09/12/20 08:57 98-06-62.0 4
Carbon tetrachloride ND ug/L 09/12/20 08:57 56-23-52.0 4
Chlorobenzene ND ug/L 09/12/20 08:57 108-90-72.0 4
Chloroethane ND ug/L 09/12/20 08:57 75-00-34.0 4
Chloroform ND ug/L 09/12/20 08:57 67-66-32.0 4
Chloromethane ND ug/L 09/12/20 08:57 74-87-34.0 4
2-Chlorotoluene ND ug/L 09/12/20 08:57 95-49-82.0 4
4-Chlorotoluene ND ug/L 09/12/20 08:57 106-43-42.0 4
1,2-Dibromo-3-chloropropane ND ug/L 09/12/20 08:57 96-12-84.0 4
Dibromochloromethane ND ug/L 09/12/20 08:57 124-48-12.0 4
1,2-Dibromoethane (EDB)ND ug/L 09/12/20 08:57 106-93-42.0 4
Dibromomethane ND ug/L 09/12/20 08:57 74-95-32.0 4
1,2-Dichlorobenzene ND ug/L 09/12/20 08:57 95-50-12.0 4
1,3-Dichlorobenzene ND ug/L 09/12/20 08:57 541-73-12.0 4
1,4-Dichlorobenzene ND ug/L 09/12/20 08:57 106-46-72.0 4
Dichlorodifluoromethane ND ug/L 09/12/20 08:57 75-71-82.0 4
1,1-Dichloroethane ND ug/L 09/12/20 08:57 75-34-32.0 4
1,2-Dichloroethane ND ug/L 09/12/20 08:57 107-06-22.0 4
1,1-Dichloroethene 4.4 ug/L 09/12/20 08:57 75-35-42.0 4
cis-1,2-Dichloroethene 13.8 ug/L 09/12/20 08:57 156-59-22.0 4
trans-1,2-Dichloroethene ND ug/L 09/12/20 08:57 156-60-52.0 4
1,2-Dichloropropane ND ug/L 09/12/20 08:57 78-87-52.0 4
1,3-Dichloropropane ND ug/L 09/12/20 08:57 142-28-92.0 4
2,2-Dichloropropane ND ug/L 09/12/20 08:57 594-20-72.0 4
1,1-Dichloropropene ND ug/L 09/12/20 08:57 563-58-62.0 4
cis-1,3-Dichloropropene ND ug/L 09/12/20 08:57 10061-01-52.0 4
trans-1,3-Dichloropropene ND ug/L 09/12/20 08:57 10061-02-62.0 4
Diisopropyl ether ND ug/L 09/12/20 08:57 108-20-32.0 4
Ethylbenzene ND ug/L 09/12/20 08:57 100-41-42.0 4
Hexachloro-1,3-butadiene ND ug/L 09/12/20 08:57 87-68-38.0 4
Isopropylbenzene (Cumene)6.6 ug/L 09/12/20 08:57 98-82-82.0 4
Methylene Chloride ND ug/L 09/12/20 08:57 75-09-28.0 4
Methyl-tert-butyl ether ND ug/L 09/12/20 08:57 1634-04-42.0 4
Naphthalene 697 ug/L 09/12/20 08:57 91-20-38.0 4
n-Propylbenzene 5.7 ug/L 09/12/20 08:57 103-65-12.0 4
Styrene ND ug/L 09/12/20 08:57 100-42-52.0 4
1,1,1,2-Tetrachloroethane ND ug/L 09/12/20 08:57 630-20-62.0 4
1,1,2,2-Tetrachloroethane ND ug/L 09/12/20 08:57 79-34-52.0 4
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-9 Lab ID:92493928003 Collected:09/01/20 14:50 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene 4.6 ug/L 09/12/20 08:57 127-18-42.0 4
Toluene ND ug/L 09/12/20 08:57 108-88-32.0 4
1,2,3-Trichlorobenzene ND ug/L 09/12/20 08:57 87-61-68.0 4
1,2,4-Trichlorobenzene ND ug/L 09/12/20 08:57 120-82-18.0 4
1,1,1-Trichloroethane ND ug/L 09/12/20 08:57 71-55-62.0 4
1,1,2-Trichloroethane ND ug/L 09/12/20 08:57 79-00-52.0 4
Trichloroethene ND ug/L 09/12/20 08:57 79-01-62.0 4
Trichlorofluoromethane ND ug/L 09/12/20 08:57 75-69-44.0 4
1,2,3-Trichloropropane ND ug/L 09/12/20 08:57 96-18-42.0 4
1,2,4-Trimethylbenzene 43.7 ug/L 09/12/20 08:57 95-63-62.0 4
1,3,5-Trimethylbenzene ND ug/L 09/12/20 08:57 108-67-82.0 4
Vinyl chloride ND ug/L 09/12/20 08:57 75-01-44.0 4
m&p-Xylene 4.3 ug/L 09/12/20 08:57 179601-23-14.0 4
o-Xylene 48.9 ug/L 09/12/20 08:57 95-47-62.0 4
Surrogates
1,2-Dichloroethane-d4 (S)90 %09/12/20 08:57 17060-07-070-130 4
4-Bromofluorobenzene (S)96 %09/12/20 08:57 460-00-470-130 4
Toluene-d8 (S)100 %09/12/20 08:57 2037-26-570-130 4
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-13 Lab ID:92493928004 Collected:09/01/20 15:30 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 09/14/20 17:57 71-43-21.2 2.5
Bromobenzene ND ug/L 09/14/20 17:57 108-86-11.2 2.5
Bromochloromethane ND ug/L 09/14/20 17:57 74-97-51.2 2.5
Bromodichloromethane ND ug/L 09/14/20 17:57 75-27-41.2 2.5
Bromoform ND ug/L 09/14/20 17:57 75-25-21.2 2.5
Bromomethane ND ug/L 09/14/20 17:57 74-83-912.5 2.5
n-Butylbenzene ND ug/L 09/14/20 17:57 104-51-81.2 2.5
sec-Butylbenzene ND ug/L 09/14/20 17:57 135-98-81.2 2.5
tert-Butylbenzene ND ug/L 09/14/20 17:57 98-06-61.2 2.5
Carbon tetrachloride ND ug/L 09/14/20 17:57 56-23-51.2 2.5
Chlorobenzene ND ug/L 09/14/20 17:57 108-90-71.2 2.5
Chloroethane ND ug/L 09/14/20 17:57 75-00-32.5 2.5
Chloroform ND ug/L 09/14/20 17:57 67-66-31.2 2.5
Chloromethane ND ug/L 09/14/20 17:57 74-87-32.5 2.5
2-Chlorotoluene ND ug/L 09/14/20 17:57 95-49-81.2 2.5
4-Chlorotoluene ND ug/L 09/14/20 17:57 106-43-41.2 2.5
1,2-Dibromo-3-chloropropane ND ug/L 09/14/20 17:57 96-12-82.5 2.5
Dibromochloromethane ND ug/L 09/14/20 17:57 124-48-11.2 2.5
1,2-Dibromoethane (EDB)ND ug/L 09/14/20 17:57 106-93-41.2 2.5
Dibromomethane ND ug/L 09/14/20 17:57 74-95-31.2 2.5
1,2-Dichlorobenzene 8.0 ug/L 09/14/20 17:57 95-50-11.2 2.5
1,3-Dichlorobenzene ND ug/L 09/14/20 17:57 541-73-11.2 2.5
1,4-Dichlorobenzene ND ug/L 09/14/20 17:57 106-46-71.2 2.5
Dichlorodifluoromethane ND ug/L 09/14/20 17:57 75-71-81.2 2.5
1,1-Dichloroethane ND ug/L 09/14/20 17:57 75-34-31.2 2.5
1,2-Dichloroethane ND ug/L 09/14/20 17:57 107-06-21.2 2.5
1,1-Dichloroethene ND ug/L 09/14/20 17:57 75-35-41.2 2.5
cis-1,2-Dichloroethene ND ug/L 09/14/20 17:57 156-59-21.2 2.5
trans-1,2-Dichloroethene ND ug/L 09/14/20 17:57 156-60-51.2 2.5
1,2-Dichloropropane ND ug/L 09/14/20 17:57 78-87-51.2 2.5
1,3-Dichloropropane ND ug/L 09/14/20 17:57 142-28-91.2 2.5
2,2-Dichloropropane ND ug/L 09/14/20 17:57 594-20-71.2 2.5
1,1-Dichloropropene ND ug/L 09/14/20 17:57 563-58-61.2 2.5
cis-1,3-Dichloropropene ND ug/L 09/14/20 17:57 10061-01-51.2 2.5
trans-1,3-Dichloropropene ND ug/L 09/14/20 17:57 10061-02-61.2 2.5
Diisopropyl ether ND ug/L 09/14/20 17:57 108-20-31.2 2.5
Ethylbenzene ND ug/L 09/14/20 17:57 100-41-41.2 2.5
Hexachloro-1,3-butadiene ND ug/L 09/14/20 17:57 87-68-35.0 2.5
Isopropylbenzene (Cumene)5.5 ug/L 09/14/20 17:57 98-82-81.2 2.5
Methylene Chloride ND ug/L 09/14/20 17:57 75-09-25.0 2.5
Methyl-tert-butyl ether ND ug/L 09/14/20 17:57 1634-04-41.2 2.5
Naphthalene 325 ug/L 09/14/20 17:57 91-20-35.0 2.5
n-Propylbenzene 5.9 ug/L 09/14/20 17:57 103-65-11.2 2.5
Styrene ND ug/L 09/14/20 17:57 100-42-51.2 2.5
1,1,1,2-Tetrachloroethane ND ug/L 09/14/20 17:57 630-20-61.2 2.5
1,1,2,2-Tetrachloroethane ND ug/L 09/14/20 17:57 79-34-51.2 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-13 Lab ID:92493928004 Collected:09/01/20 15:30 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene 5.4 ug/L 09/14/20 17:57 127-18-41.2 2.5
Toluene ND ug/L 09/14/20 17:57 108-88-31.2 2.5
1,2,3-Trichlorobenzene ND ug/L 09/14/20 17:57 87-61-65.0 2.5
1,2,4-Trichlorobenzene ND ug/L 09/14/20 17:57 120-82-15.0 2.5
1,1,1-Trichloroethane ND ug/L 09/14/20 17:57 71-55-61.2 2.5
1,1,2-Trichloroethane ND ug/L 09/14/20 17:57 79-00-51.2 2.5
Trichloroethene ND ug/L 09/14/20 17:57 79-01-61.2 2.5
Trichlorofluoromethane ND ug/L 09/14/20 17:57 75-69-42.5 2.5
1,2,3-Trichloropropane ND ug/L 09/14/20 17:57 96-18-41.2 2.5
1,2,4-Trimethylbenzene 92.1 ug/L 09/14/20 17:57 95-63-61.2 2.5
1,3,5-Trimethylbenzene ND ug/L 09/14/20 17:57 108-67-81.2 2.5
Vinyl chloride ND ug/L 09/14/20 17:57 75-01-42.5 2.5
m&p-Xylene 10.8 ug/L 09/14/20 17:57 179601-23-12.5 2.5
o-Xylene 83.0 ug/L 09/14/20 17:57 95-47-61.2 2.5
Surrogates
1,2-Dichloroethane-d4 (S)88 %09/14/20 17:57 17060-07-070-130 2.5
4-Bromofluorobenzene (S)95 %09/14/20 17:57 460-00-470-130 2.5
Toluene-d8 (S)99 %09/14/20 17:57 2037-26-570-130 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-16 Lab ID:92493928005 Collected:09/01/20 15:40 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 2.7 ug/L 09/14/20 18:15 71-43-21.2 2.5
Bromobenzene ND ug/L 09/14/20 18:15 108-86-11.2 2.5
Bromochloromethane ND ug/L 09/14/20 18:15 74-97-51.2 2.5
Bromodichloromethane ND ug/L 09/14/20 18:15 75-27-41.2 2.5
Bromoform ND ug/L 09/14/20 18:15 75-25-21.2 2.5
Bromomethane ND ug/L 09/14/20 18:15 74-83-912.5 2.5
n-Butylbenzene ND ug/L 09/14/20 18:15 104-51-81.2 2.5
sec-Butylbenzene ND ug/L 09/14/20 18:15 135-98-81.2 2.5
tert-Butylbenzene ND ug/L 09/14/20 18:15 98-06-61.2 2.5
Carbon tetrachloride ND ug/L 09/14/20 18:15 56-23-51.2 2.5
Chlorobenzene ND ug/L 09/14/20 18:15 108-90-71.2 2.5
Chloroethane ND ug/L 09/14/20 18:15 75-00-32.5 2.5
Chloroform ND ug/L 09/14/20 18:15 67-66-31.2 2.5
Chloromethane ND ug/L 09/14/20 18:15 74-87-32.5 2.5
2-Chlorotoluene ND ug/L 09/14/20 18:15 95-49-81.2 2.5
4-Chlorotoluene ND ug/L 09/14/20 18:15 106-43-41.2 2.5
1,2-Dibromo-3-chloropropane ND ug/L 09/14/20 18:15 96-12-82.5 2.5
Dibromochloromethane ND ug/L 09/14/20 18:15 124-48-11.2 2.5
1,2-Dibromoethane (EDB)ND ug/L 09/14/20 18:15 106-93-41.2 2.5
Dibromomethane ND ug/L 09/14/20 18:15 74-95-31.2 2.5
1,2-Dichlorobenzene 6.3 ug/L 09/14/20 18:15 95-50-11.2 2.5
1,3-Dichlorobenzene ND ug/L 09/14/20 18:15 541-73-11.2 2.5
1,4-Dichlorobenzene ND ug/L 09/14/20 18:15 106-46-71.2 2.5
Dichlorodifluoromethane ND ug/L 09/14/20 18:15 75-71-81.2 2.5
1,1-Dichloroethane ND ug/L 09/14/20 18:15 75-34-31.2 2.5
1,2-Dichloroethane ND ug/L 09/14/20 18:15 107-06-21.2 2.5
1,1-Dichloroethene ND ug/L 09/14/20 18:15 75-35-41.2 2.5
cis-1,2-Dichloroethene ND ug/L 09/14/20 18:15 156-59-21.2 2.5
trans-1,2-Dichloroethene ND ug/L 09/14/20 18:15 156-60-51.2 2.5
1,2-Dichloropropane ND ug/L 09/14/20 18:15 78-87-51.2 2.5
1,3-Dichloropropane ND ug/L 09/14/20 18:15 142-28-91.2 2.5
2,2-Dichloropropane ND ug/L 09/14/20 18:15 594-20-71.2 2.5
1,1-Dichloropropene ND ug/L 09/14/20 18:15 563-58-61.2 2.5
cis-1,3-Dichloropropene ND ug/L 09/14/20 18:15 10061-01-51.2 2.5
trans-1,3-Dichloropropene ND ug/L 09/14/20 18:15 10061-02-61.2 2.5
Diisopropyl ether ND ug/L 09/14/20 18:15 108-20-31.2 2.5
Ethylbenzene ND ug/L 09/14/20 18:15 100-41-41.2 2.5
Hexachloro-1,3-butadiene ND ug/L 09/14/20 18:15 87-68-35.0 2.5
Isopropylbenzene (Cumene)6.9 ug/L 09/14/20 18:15 98-82-81.2 2.5
Methylene Chloride ND ug/L 09/14/20 18:15 75-09-25.0 2.5
Methyl-tert-butyl ether ND ug/L 09/14/20 18:15 1634-04-41.2 2.5
Naphthalene 333 ug/L 09/14/20 18:15 91-20-35.0 2.5
n-Propylbenzene 3.5 ug/L 09/14/20 18:15 103-65-11.2 2.5
Styrene ND ug/L 09/14/20 18:15 100-42-51.2 2.5
1,1,1,2-Tetrachloroethane ND ug/L 09/14/20 18:15 630-20-61.2 2.5
1,1,2,2-Tetrachloroethane ND ug/L 09/14/20 18:15 79-34-51.2 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-16 Lab ID:92493928005 Collected:09/01/20 15:40 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene 3.3 ug/L 09/14/20 18:15 127-18-41.2 2.5
Toluene ND ug/L 09/14/20 18:15 108-88-31.2 2.5
1,2,3-Trichlorobenzene ND ug/L 09/14/20 18:15 87-61-65.0 2.5
1,2,4-Trichlorobenzene ND ug/L 09/14/20 18:15 120-82-15.0 2.5
1,1,1-Trichloroethane ND ug/L 09/14/20 18:15 71-55-61.2 2.5
1,1,2-Trichloroethane ND ug/L 09/14/20 18:15 79-00-51.2 2.5
Trichloroethene ND ug/L 09/14/20 18:15 79-01-61.2 2.5
Trichlorofluoromethane ND ug/L 09/14/20 18:15 75-69-42.5 2.5
1,2,3-Trichloropropane ND ug/L 09/14/20 18:15 96-18-41.2 2.5
1,2,4-Trimethylbenzene 116 ug/L 09/14/20 18:15 95-63-61.2 2.5
1,3,5-Trimethylbenzene ND ug/L 09/14/20 18:15 108-67-81.2 2.5
Vinyl chloride ND ug/L 09/14/20 18:15 75-01-42.5 2.5
m&p-Xylene 5.2 ug/L 09/14/20 18:15 179601-23-12.5 2.5
o-Xylene 119 ug/L 09/14/20 18:15 95-47-61.2 2.5
Surrogates
1,2-Dichloroethane-d4 (S)87 %09/14/20 18:15 17060-07-070-130 2.5
4-Bromofluorobenzene (S)95 %09/14/20 18:15 460-00-470-130 2.5
Toluene-d8 (S)99 %09/14/20 18:15 2037-26-570-130 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-17 Lab ID:92493928006 Collected:09/01/20 15:20 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 09/15/20 13:30 71-43-21.0 2
Bromobenzene ND ug/L 09/15/20 13:30 108-86-11.0 2
Bromochloromethane ND ug/L 09/15/20 13:30 74-97-51.0 2
Bromodichloromethane ND ug/L 09/15/20 13:30 75-27-41.0 2
Bromoform ND ug/L 09/15/20 13:30 75-25-21.0 2
Bromomethane ND ug/L 09/15/20 13:30 74-83-910.0 2
n-Butylbenzene ND ug/L 09/15/20 13:30 104-51-81.0 2
sec-Butylbenzene ND ug/L 09/15/20 13:30 135-98-81.0 2
tert-Butylbenzene ND ug/L 09/15/20 13:30 98-06-61.0 2
Carbon tetrachloride ND ug/L 09/15/20 13:30 56-23-51.0 2
Chlorobenzene ND ug/L 09/15/20 13:30 108-90-71.0 2
Chloroethane ND ug/L 09/15/20 13:30 75-00-32.0 2
Chloroform 1.7 ug/L 09/15/20 13:30 67-66-31.0 2
Chloromethane ND ug/L 09/15/20 13:30 74-87-32.0 2
2-Chlorotoluene ND ug/L 09/15/20 13:30 95-49-81.0 2
4-Chlorotoluene ND ug/L 09/15/20 13:30 106-43-41.0 2
1,2-Dibromo-3-chloropropane ND ug/L 09/15/20 13:30 96-12-82.0 2
Dibromochloromethane ND ug/L 09/15/20 13:30 124-48-11.0 2
1,2-Dibromoethane (EDB)ND ug/L 09/15/20 13:30 106-93-41.0 2
Dibromomethane ND ug/L 09/15/20 13:30 74-95-31.0 2
1,2-Dichlorobenzene 7.1 ug/L 09/15/20 13:30 95-50-11.0 2
1,3-Dichlorobenzene ND ug/L 09/15/20 13:30 541-73-11.0 2
1,4-Dichlorobenzene 1.3 ug/L 09/15/20 13:30 106-46-71.0 2
Dichlorodifluoromethane ND ug/L 09/15/20 13:30 75-71-81.0 2
1,1-Dichloroethane ND ug/L 09/15/20 13:30 75-34-31.0 2
1,2-Dichloroethane ND ug/L 09/15/20 13:30 107-06-21.0 2
1,1-Dichloroethene ND ug/L 09/15/20 13:30 75-35-41.0 2
cis-1,2-Dichloroethene ND ug/L 09/15/20 13:30 156-59-21.0 2
trans-1,2-Dichloroethene ND ug/L 09/15/20 13:30 156-60-51.0 2
1,2-Dichloropropane ND ug/L 09/15/20 13:30 78-87-51.0 2
1,3-Dichloropropane ND ug/L 09/15/20 13:30 142-28-91.0 2
2,2-Dichloropropane ND ug/L 09/15/20 13:30 594-20-71.0 2
1,1-Dichloropropene ND ug/L 09/15/20 13:30 563-58-61.0 2
cis-1,3-Dichloropropene ND ug/L 09/15/20 13:30 10061-01-51.0 2
trans-1,3-Dichloropropene ND ug/L 09/15/20 13:30 10061-02-61.0 2
Diisopropyl ether ND ug/L 09/15/20 13:30 108-20-31.0 2
Ethylbenzene 1.2 ug/L 09/15/20 13:30 100-41-41.0 2
Hexachloro-1,3-butadiene ND ug/L 09/15/20 13:30 87-68-34.0 2
Isopropylbenzene (Cumene)2.5 ug/L 09/15/20 13:30 98-82-81.0 2
Methylene Chloride ND ug/L 09/15/20 13:30 75-09-24.0 2
Methyl-tert-butyl ether ND ug/L 09/15/20 13:30 1634-04-41.0 2
Naphthalene 163 ug/L 09/15/20 13:30 91-20-34.0 2
n-Propylbenzene 2.5 ug/L 09/15/20 13:30 103-65-11.0 2
Styrene ND ug/L 09/15/20 13:30 100-42-51.0 2
1,1,1,2-Tetrachloroethane ND ug/L 09/15/20 13:30 630-20-61.0 2
1,1,2,2-Tetrachloroethane ND ug/L 09/15/20 13:30 79-34-51.0 2
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 14 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:MW-17 Lab ID:92493928006 Collected:09/01/20 15:20 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene 5.9 ug/L 09/15/20 13:30 127-18-41.0 2
Toluene ND ug/L 09/15/20 13:30 108-88-31.0 2
1,2,3-Trichlorobenzene ND ug/L 09/15/20 13:30 87-61-64.0 2
1,2,4-Trichlorobenzene ND ug/L 09/15/20 13:30 120-82-14.0 2
1,1,1-Trichloroethane ND ug/L 09/15/20 13:30 71-55-61.0 2
1,1,2-Trichloroethane ND ug/L 09/15/20 13:30 79-00-51.0 2
Trichloroethene ND ug/L 09/15/20 13:30 79-01-61.0 2
Trichlorofluoromethane ND ug/L 09/15/20 13:30 75-69-42.0 2
1,2,3-Trichloropropane ND ug/L 09/15/20 13:30 96-18-41.0 2
1,2,4-Trimethylbenzene 64.3 ug/L 09/15/20 13:30 95-63-61.0 2
1,3,5-Trimethylbenzene 22.8 ug/L 09/15/20 13:30 108-67-81.0 2
Vinyl chloride ND ug/L 09/15/20 13:30 75-01-42.0 2
m&p-Xylene 15.5 ug/L 09/15/20 13:30 179601-23-12.0 2
o-Xylene 52.9 ug/L 09/15/20 13:30 95-47-61.0 2
Surrogates
1,2-Dichloroethane-d4 (S)84 %09/15/20 13:30 17060-07-070-130 2
4-Bromofluorobenzene (S)96 %09/15/20 13:30 460-00-470-130 2
Toluene-d8 (S)99 %09/15/20 13:30 2037-26-570-130 2
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 15 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:RW-7 Lab ID:92493928007 Collected:09/01/20 16:00 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 09/14/20 16:44 71-43-20.50 1
Bromobenzene ND ug/L 09/14/20 16:44 108-86-10.50 1
Bromochloromethane ND ug/L 09/14/20 16:44 74-97-50.50 1
Bromodichloromethane ND ug/L 09/14/20 16:44 75-27-40.50 1
Bromoform ND ug/L 09/14/20 16:44 75-25-20.50 1
Bromomethane ND ug/L 09/14/20 16:44 74-83-95.0 1
n-Butylbenzene ND ug/L 09/14/20 16:44 104-51-80.50 1
sec-Butylbenzene 3.5 ug/L 09/14/20 16:44 135-98-80.50 1
tert-Butylbenzene 1.3 ug/L 09/14/20 16:44 98-06-60.50 1
Carbon tetrachloride ND ug/L 09/14/20 16:44 56-23-50.50 1
Chlorobenzene ND ug/L 09/14/20 16:44 108-90-70.50 1
Chloroethane ND ug/L 09/14/20 16:44 75-00-31.0 1
Chloroform ND ug/L 09/14/20 16:44 67-66-30.50 1
Chloromethane ND ug/L 09/14/20 16:44 74-87-31.0 1
2-Chlorotoluene ND ug/L 09/14/20 16:44 95-49-80.50 1
4-Chlorotoluene ND ug/L 09/14/20 16:44 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 09/14/20 16:44 96-12-81.0 1
Dibromochloromethane ND ug/L 09/14/20 16:44 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 09/14/20 16:44 106-93-40.50 1
Dibromomethane ND ug/L 09/14/20 16:44 74-95-30.50 1
1,2-Dichlorobenzene 10.7 ug/L 09/14/20 16:44 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 09/14/20 16:44 541-73-10.50 1
1,4-Dichlorobenzene 1.3 ug/L 09/14/20 16:44 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 09/14/20 16:44 75-71-80.50 1
1,1-Dichloroethane ND ug/L 09/14/20 16:44 75-34-30.50 1
1,2-Dichloroethane ND ug/L 09/14/20 16:44 107-06-20.50 1
1,1-Dichloroethene ND ug/L 09/14/20 16:44 75-35-40.50 1
cis-1,2-Dichloroethene 68.0 ug/L 09/14/20 16:44 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 09/14/20 16:44 156-60-50.50 1
1,2-Dichloropropane ND ug/L 09/14/20 16:44 78-87-50.50 1
1,3-Dichloropropane ND ug/L 09/14/20 16:44 142-28-90.50 1
2,2-Dichloropropane ND ug/L 09/14/20 16:44 594-20-70.50 1
1,1-Dichloropropene ND ug/L 09/14/20 16:44 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 09/14/20 16:44 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 09/14/20 16:44 10061-02-60.50 1
Diisopropyl ether ND ug/L 09/14/20 16:44 108-20-30.50 1
Ethylbenzene 2.9 ug/L 09/14/20 16:44 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 09/14/20 16:44 87-68-32.0 1
Isopropylbenzene (Cumene)10.8 ug/L 09/14/20 16:44 98-82-80.50 1
Methylene Chloride ND ug/L 09/14/20 16:44 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 09/14/20 16:44 1634-04-40.50 1
Naphthalene 31.1 ug/L 09/14/20 16:44 91-20-32.0 1
n-Propylbenzene 10.3 ug/L 09/14/20 16:44 103-65-10.50 1
Styrene ND ug/L 09/14/20 16:44 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 09/14/20 16:44 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 09/14/20 16:44 79-34-50.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 16 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:RW-7 Lab ID:92493928007 Collected:09/01/20 16:00 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene 1.0 ug/L 09/14/20 16:44 127-18-40.50 1
Toluene ND ug/L 09/14/20 16:44 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 09/14/20 16:44 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 09/14/20 16:44 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 09/14/20 16:44 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 09/14/20 16:44 79-00-50.50 1
Trichloroethene ND ug/L 09/14/20 16:44 79-01-60.50 1
Trichlorofluoromethane ND ug/L 09/14/20 16:44 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 09/14/20 16:44 96-18-40.50 1
1,2,4-Trimethylbenzene 15.1 ug/L 09/14/20 16:44 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 09/14/20 16:44 108-67-80.50 1
Vinyl chloride ND ug/L 09/14/20 16:44 75-01-41.0 1
m&p-Xylene 1.9 ug/L 09/14/20 16:44 179601-23-11.0 1
o-Xylene 3.9 ug/L 09/14/20 16:44 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)89 %09/14/20 16:44 17060-07-070-130 1
4-Bromofluorobenzene (S)95 %09/14/20 16:44 460-00-470-130 1
Toluene-d8 (S)99 %09/14/20 16:44 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 17 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:RW-8 Lab ID:92493928008 Collected:09/01/20 16:10 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 09/14/20 17:02 71-43-20.50 1
Bromobenzene ND ug/L 09/14/20 17:02 108-86-10.50 1
Bromochloromethane ND ug/L 09/14/20 17:02 74-97-50.50 1
Bromodichloromethane ND ug/L 09/14/20 17:02 75-27-40.50 1
Bromoform ND ug/L 09/14/20 17:02 75-25-20.50 1
Bromomethane ND ug/L 09/14/20 17:02 74-83-95.0 1
n-Butylbenzene ND ug/L 09/14/20 17:02 104-51-80.50 1
sec-Butylbenzene 2.8 ug/L 09/14/20 17:02 135-98-80.50 1
tert-Butylbenzene 1.1 ug/L 09/14/20 17:02 98-06-60.50 1
Carbon tetrachloride ND ug/L 09/14/20 17:02 56-23-50.50 1
Chlorobenzene ND ug/L 09/14/20 17:02 108-90-70.50 1
Chloroethane ND ug/L 09/14/20 17:02 75-00-31.0 1
Chloroform ND ug/L 09/14/20 17:02 67-66-30.50 1
Chloromethane ND ug/L 09/14/20 17:02 74-87-31.0 1
2-Chlorotoluene ND ug/L 09/14/20 17:02 95-49-80.50 1
4-Chlorotoluene ND ug/L 09/14/20 17:02 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 09/14/20 17:02 96-12-81.0 1
Dibromochloromethane ND ug/L 09/14/20 17:02 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 09/14/20 17:02 106-93-40.50 1
Dibromomethane ND ug/L 09/14/20 17:02 74-95-30.50 1
1,2-Dichlorobenzene 12.0 ug/L 09/14/20 17:02 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 09/14/20 17:02 541-73-10.50 1
1,4-Dichlorobenzene 1.5 ug/L 09/14/20 17:02 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 09/14/20 17:02 75-71-80.50 1
1,1-Dichloroethane ND ug/L 09/14/20 17:02 75-34-30.50 1
1,2-Dichloroethane ND ug/L 09/14/20 17:02 107-06-20.50 1
1,1-Dichloroethene ND ug/L 09/14/20 17:02 75-35-40.50 1
cis-1,2-Dichloroethene 3.1 ug/L 09/14/20 17:02 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 09/14/20 17:02 156-60-50.50 1
1,2-Dichloropropane ND ug/L 09/14/20 17:02 78-87-50.50 1
1,3-Dichloropropane ND ug/L 09/14/20 17:02 142-28-90.50 1
2,2-Dichloropropane ND ug/L 09/14/20 17:02 594-20-70.50 1
1,1-Dichloropropene ND ug/L 09/14/20 17:02 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 09/14/20 17:02 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 09/14/20 17:02 10061-02-60.50 1
Diisopropyl ether ND ug/L 09/14/20 17:02 108-20-30.50 1
Ethylbenzene 3.1 ug/L 09/14/20 17:02 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 09/14/20 17:02 87-68-32.0 1
Isopropylbenzene (Cumene)7.2 ug/L 09/14/20 17:02 98-82-80.50 1
Methylene Chloride ND ug/L 09/14/20 17:02 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 09/14/20 17:02 1634-04-40.50 1
Naphthalene 87.0 ug/L 09/14/20 17:02 91-20-32.0 1
n-Propylbenzene 6.1 ug/L 09/14/20 17:02 103-65-10.50 1
Styrene ND ug/L 09/14/20 17:02 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 09/14/20 17:02 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 09/14/20 17:02 79-34-50.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 18 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:RW-8 Lab ID:92493928008 Collected:09/01/20 16:10 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene ND ug/L 09/14/20 17:02 127-18-40.50 1
Toluene ND ug/L 09/14/20 17:02 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 09/14/20 17:02 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 09/14/20 17:02 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 09/14/20 17:02 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 09/14/20 17:02 79-00-50.50 1
Trichloroethene ND ug/L 09/14/20 17:02 79-01-60.50 1
Trichlorofluoromethane ND ug/L 09/14/20 17:02 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 09/14/20 17:02 96-18-40.50 1
1,2,4-Trimethylbenzene 29.3 ug/L 09/14/20 17:02 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 09/14/20 17:02 108-67-80.50 1
Vinyl chloride ND ug/L 09/14/20 17:02 75-01-41.0 1
m&p-Xylene 2.7 ug/L 09/14/20 17:02 179601-23-11.0 1
o-Xylene ND ug/L 09/14/20 17:02 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)87 %09/14/20 17:02 17060-07-070-130 1
4-Bromofluorobenzene (S)95 %09/14/20 17:02 460-00-470-130 1
Toluene-d8 (S)99 %09/14/20 17:02 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 19 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:RW-9 Lab ID:92493928009 Collected:09/01/20 16:20 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 3.1 ug/L 09/14/20 18:33 71-43-21.2 2.5
Bromobenzene ND ug/L 09/14/20 18:33 108-86-11.2 2.5
Bromochloromethane ND ug/L 09/14/20 18:33 74-97-51.2 2.5
Bromodichloromethane ND ug/L 09/14/20 18:33 75-27-41.2 2.5
Bromoform ND ug/L 09/14/20 18:33 75-25-21.2 2.5
Bromomethane ND ug/L 09/14/20 18:33 74-83-912.5 2.5
n-Butylbenzene ND ug/L 09/14/20 18:33 104-51-81.2 2.5
sec-Butylbenzene 3.7 ug/L 09/14/20 18:33 135-98-81.2 2.5
tert-Butylbenzene ND ug/L 09/14/20 18:33 98-06-61.2 2.5
Carbon tetrachloride ND ug/L 09/14/20 18:33 56-23-51.2 2.5
Chlorobenzene ND ug/L 09/14/20 18:33 108-90-71.2 2.5
Chloroethane ND ug/L 09/14/20 18:33 75-00-32.5 2.5
Chloroform ND ug/L 09/14/20 18:33 67-66-31.2 2.5
Chloromethane ND ug/L 09/14/20 18:33 74-87-32.5 2.5
2-Chlorotoluene ND ug/L 09/14/20 18:33 95-49-81.2 2.5
4-Chlorotoluene ND ug/L 09/14/20 18:33 106-43-41.2 2.5
1,2-Dibromo-3-chloropropane ND ug/L 09/14/20 18:33 96-12-82.5 2.5
Dibromochloromethane ND ug/L 09/14/20 18:33 124-48-11.2 2.5
1,2-Dibromoethane (EDB)ND ug/L 09/14/20 18:33 106-93-41.2 2.5
Dibromomethane ND ug/L 09/14/20 18:33 74-95-31.2 2.5
1,2-Dichlorobenzene 15.9 ug/L 09/14/20 18:33 95-50-11.2 2.5
1,3-Dichlorobenzene ND ug/L 09/14/20 18:33 541-73-11.2 2.5
1,4-Dichlorobenzene 2.0 ug/L 09/14/20 18:33 106-46-71.2 2.5
Dichlorodifluoromethane ND ug/L 09/14/20 18:33 75-71-81.2 2.5
1,1-Dichloroethane ND ug/L 09/14/20 18:33 75-34-31.2 2.5
1,2-Dichloroethane ND ug/L 09/14/20 18:33 107-06-21.2 2.5
1,1-Dichloroethene ND ug/L 09/14/20 18:33 75-35-41.2 2.5
cis-1,2-Dichloroethene 8.9 ug/L 09/14/20 18:33 156-59-21.2 2.5
trans-1,2-Dichloroethene ND ug/L 09/14/20 18:33 156-60-51.2 2.5
1,2-Dichloropropane ND ug/L 09/14/20 18:33 78-87-51.2 2.5
1,3-Dichloropropane ND ug/L 09/14/20 18:33 142-28-91.2 2.5
2,2-Dichloropropane ND ug/L 09/14/20 18:33 594-20-71.2 2.5
1,1-Dichloropropene ND ug/L 09/14/20 18:33 563-58-61.2 2.5
cis-1,3-Dichloropropene ND ug/L 09/14/20 18:33 10061-01-51.2 2.5
trans-1,3-Dichloropropene ND ug/L 09/14/20 18:33 10061-02-61.2 2.5
Diisopropyl ether ND ug/L 09/14/20 18:33 108-20-31.2 2.5
Ethylbenzene 32.1 ug/L 09/14/20 18:33 100-41-41.2 2.5
Hexachloro-1,3-butadiene ND ug/L 09/14/20 18:33 87-68-35.0 2.5
Isopropylbenzene (Cumene)8.3 ug/L 09/14/20 18:33 98-82-81.2 2.5
Methylene Chloride ND ug/L 09/14/20 18:33 75-09-25.0 2.5
Methyl-tert-butyl ether ND ug/L 09/14/20 18:33 1634-04-41.2 2.5
Naphthalene 373 ug/L 09/14/20 18:33 91-20-35.0 2.5
n-Propylbenzene 12.3 ug/L 09/14/20 18:33 103-65-11.2 2.5
Styrene ND ug/L 09/14/20 18:33 100-42-51.2 2.5
1,1,1,2-Tetrachloroethane ND ug/L 09/14/20 18:33 630-20-61.2 2.5
1,1,2,2-Tetrachloroethane ND ug/L 09/14/20 18:33 79-34-51.2 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 20 of 41
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92493928
EFA #2020-165
Sample:RW-9 Lab ID:92493928009 Collected:09/01/20 16:20 Received:09/03/20 09:50 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene ND ug/L 09/14/20 18:33 127-18-41.2 2.5
Toluene ND ug/L 09/14/20 18:33 108-88-31.2 2.5
1,2,3-Trichlorobenzene ND ug/L 09/14/20 18:33 87-61-65.0 2.5
1,2,4-Trichlorobenzene ND ug/L 09/14/20 18:33 120-82-15.0 2.5
1,1,1-Trichloroethane ND ug/L 09/14/20 18:33 71-55-61.2 2.5
1,1,2-Trichloroethane ND ug/L 09/14/20 18:33 79-00-51.2 2.5
Trichloroethene ND ug/L 09/14/20 18:33 79-01-61.2 2.5
Trichlorofluoromethane ND ug/L 09/14/20 18:33 75-69-42.5 2.5
1,2,3-Trichloropropane ND ug/L 09/14/20 18:33 96-18-41.2 2.5
1,2,4-Trimethylbenzene 22.1 ug/L 09/14/20 18:33 95-63-61.2 2.5
1,3,5-Trimethylbenzene 7.2 ug/L 09/14/20 18:33 108-67-81.2 2.5
Vinyl chloride ND ug/L 09/14/20 18:33 75-01-42.5 2.5
m&p-Xylene ND ug/L 09/14/20 18:33 179601-23-12.5 2.5
o-Xylene 1.4 ug/L 09/14/20 18:33 95-47-61.2 2.5
Surrogates
1,2-Dichloroethane-d4 (S)86 %09/14/20 18:33 17060-07-070-130 2.5
4-Bromofluorobenzene (S)94 %09/14/20 18:33 460-00-470-130 2.5
Toluene-d8 (S)98 %09/14/20 18:33 2037-26-570-130 2.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 21 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
565946
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92493928003
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:2999437
Associated Lab Samples:92493928003
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 09/12/20 03:28
1,1,1-Trichloroethane ug/L ND 0.50 09/12/20 03:28
1,1,2,2-Tetrachloroethane ug/L ND 0.50 09/12/20 03:28
1,1,2-Trichloroethane ug/L ND 0.50 09/12/20 03:28
1,1-Dichloroethane ug/L ND 0.50 09/12/20 03:28
1,1-Dichloroethene ug/L ND 0.50 09/12/20 03:28
1,1-Dichloropropene ug/L ND 0.50 09/12/20 03:28
1,2,3-Trichlorobenzene ug/L ND 2.0 09/12/20 03:28
1,2,3-Trichloropropane ug/L ND 0.50 09/12/20 03:28
1,2,4-Trichlorobenzene ug/L ND 2.0 09/12/20 03:28
1,2,4-Trimethylbenzene ug/L ND 0.50 09/12/20 03:28
1,2-Dibromo-3-chloropropane ug/L ND 1.0 09/12/20 03:28
1,2-Dibromoethane (EDB)ug/L ND 0.50 09/12/20 03:28
1,2-Dichlorobenzene ug/L ND 0.50 09/12/20 03:28
1,2-Dichloroethane ug/L ND 0.50 09/12/20 03:28
1,2-Dichloropropane ug/L ND 0.50 09/12/20 03:28
1,3,5-Trimethylbenzene ug/L ND 0.50 09/12/20 03:28
1,3-Dichlorobenzene ug/L ND 0.50 09/12/20 03:28
1,3-Dichloropropane ug/L ND 0.50 09/12/20 03:28
1,4-Dichlorobenzene ug/L ND 0.50 09/12/20 03:28
2,2-Dichloropropane ug/L ND 0.50 09/12/20 03:28
2-Chlorotoluene ug/L ND 0.50 09/12/20 03:28
4-Chlorotoluene ug/L ND 0.50 09/12/20 03:28
Benzene ug/L ND 0.50 09/12/20 03:28
Bromobenzene ug/L ND 0.50 09/12/20 03:28
Bromochloromethane ug/L ND 0.50 09/12/20 03:28
Bromodichloromethane ug/L ND 0.50 09/12/20 03:28
Bromoform ug/L ND 0.50 09/12/20 03:28
Bromomethane ug/L ND 5.0 09/12/20 03:28
Carbon tetrachloride ug/L ND 0.50 09/12/20 03:28
Chlorobenzene ug/L ND 0.50 09/12/20 03:28
Chloroethane ug/L ND 1.0 09/12/20 03:28
Chloroform ug/L ND 0.50 09/12/20 03:28
Chloromethane ug/L ND 1.0 09/12/20 03:28
cis-1,2-Dichloroethene ug/L ND 0.50 09/12/20 03:28
cis-1,3-Dichloropropene ug/L ND 0.50 09/12/20 03:28
Dibromochloromethane ug/L ND 0.50 09/12/20 03:28
Dibromomethane ug/L ND 0.50 09/12/20 03:28
Dichlorodifluoromethane ug/L ND 0.50 09/12/20 03:28
Diisopropyl ether ug/L ND 0.50 09/12/20 03:28
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
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Huntersville, NC 28078
[phone]
Page 22 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:2999437
Associated Lab Samples:92493928003
Matrix:Water
Analyzed
Ethylbenzene ug/L ND 0.50 09/12/20 03:28
Hexachloro-1,3-butadiene ug/L ND 2.0 09/12/20 03:28
Isopropylbenzene (Cumene)ug/L ND 0.50 09/12/20 03:28
m&p-Xylene ug/L ND 1.0 09/12/20 03:28
Methyl-tert-butyl ether ug/L ND 0.50 09/12/20 03:28
Methylene Chloride ug/L ND 2.0 09/12/20 03:28
n-Butylbenzene ug/L ND 0.50 09/12/20 03:28
n-Propylbenzene ug/L ND 0.50 09/12/20 03:28
Naphthalene ug/L ND 2.0 09/12/20 03:28
o-Xylene ug/L ND 0.50 09/12/20 03:28
sec-Butylbenzene ug/L ND 0.50 09/12/20 03:28
Styrene ug/L ND 0.50 09/12/20 03:28
tert-Butylbenzene ug/L ND 0.50 09/12/20 03:28
Tetrachloroethene ug/L ND 0.50 09/12/20 03:28
Toluene ug/L ND 0.50 09/12/20 03:28
trans-1,2-Dichloroethene ug/L ND 0.50 09/12/20 03:28
trans-1,3-Dichloropropene ug/L ND 0.50 09/12/20 03:28
Trichloroethene ug/L ND 0.50 09/12/20 03:28
Trichlorofluoromethane ug/L ND 1.0 09/12/20 03:28
Vinyl chloride ug/L ND 1.0 09/12/20 03:28
1,2-Dichloroethane-d4 (S)%91 70-130 09/12/20 03:28
4-Bromofluorobenzene (S)%95 70-130 09/12/20 03:28
Toluene-d8 (S)%100 70-130 09/12/20 03:28
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
2999438LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 52.550 105 60-140
1,1,1-Trichloroethane ug/L 48.350 97 60-140
1,1,2,2-Tetrachloroethane ug/L 50.750 101 60-140
1,1,2-Trichloroethane ug/L 50.450 101 60-140
1,1-Dichloroethane ug/L 48.450 97 60-140
1,1-Dichloroethene ug/L 50.750 101 60-140
1,1-Dichloropropene ug/L 51.250 102 60-140
1,2,3-Trichlorobenzene ug/L 53.950 108 60-140
1,2,3-Trichloropropane ug/L 49.250 98 60-140
1,2,4-Trichlorobenzene ug/L 55.350 111 60-140
1,2,4-Trimethylbenzene ug/L 52.850 106 60-140
1,2-Dibromo-3-chloropropane ug/L 51.050 102 60-140
1,2-Dibromoethane (EDB)ug/L 54.150 108 60-140
1,2-Dichlorobenzene ug/L 53.450 107 60-140
1,2-Dichloroethane ug/L 40.850 82 60-140
1,2-Dichloropropane ug/L 52.650 105 60-140
1,3,5-Trimethylbenzene ug/L 52.850 106 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 23 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
2999438LABORATORY CONTROL SAMPLE:
LCSSpike
1,3-Dichlorobenzene ug/L 53.650 107 60-140
1,3-Dichloropropane ug/L 54.350 109 60-140
1,4-Dichlorobenzene ug/L 53.250 106 60-140
2,2-Dichloropropane ug/L 46.150 92 60-140
2-Chlorotoluene ug/L 53.750 107 60-140
4-Chlorotoluene ug/L 52.150 104 60-140
Benzene ug/L 51.750 103 60-140
Bromobenzene ug/L 52.750 105 60-140
Bromochloromethane ug/L 50.250 100 60-140
Bromodichloromethane ug/L 46.150 92 60-140
Bromoform ug/L 50.350 101 60-140
Bromomethane ug/L 47.450 95 60-140
Carbon tetrachloride ug/L 52.250 104 60-140
Chlorobenzene ug/L 53.150 106 60-140
Chloroethane ug/L 35.750 71 60-140
Chloroform ug/L 46.450 93 60-140
Chloromethane ug/L 51.050 102 60-140
cis-1,2-Dichloroethene ug/L 47.250 94 60-140
cis-1,3-Dichloropropene ug/L 53.050 106 60-140
Dibromochloromethane ug/L 52.150 104 60-140
Dibromomethane ug/L 50.750 101 60-140
Dichlorodifluoromethane ug/L 55.050 110 60-140
Diisopropyl ether ug/L 46.850 94 60-140
Ethylbenzene ug/L 53.350 107 60-140
Hexachloro-1,3-butadiene ug/L 56.150 112 60-140
Isopropylbenzene (Cumene)ug/L 54.150 108 60-140
m&p-Xylene ug/L 104100 104 60-140
Methyl-tert-butyl ether ug/L 47.050 94 60-140
Methylene Chloride ug/L 43.050 86 60-140
n-Butylbenzene ug/L 54.150 108 60-140
n-Propylbenzene ug/L 54.350 109 60-140
Naphthalene ug/L 54.150 108 60-140
o-Xylene ug/L 52.650 105 60-140
sec-Butylbenzene ug/L 55.050 110 60-140
Styrene ug/L 54.950 110 60-140
tert-Butylbenzene ug/L 45.250 90 60-140
Tetrachloroethene ug/L 55.050 110 60-140
Toluene ug/L 50.650 101 60-140
trans-1,2-Dichloroethene ug/L 48.750 97 60-140
trans-1,3-Dichloropropene ug/L 49.150 98 60-140
Trichloroethene ug/L 53.550 107 60-140
Trichlorofluoromethane ug/L 50.250 100 60-140
Vinyl chloride ug/L 54.050 108 60-140
1,2-Dichloroethane-d4 (S)%82 70-130
4-Bromofluorobenzene (S)%98 70-130
Toluene-d8 (S)%96 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 24 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
2999439MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92495067001
2999440
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 118 60-140116 220ND23.7 23.3
1,1,1-Trichloroethane ug/L 20 114 60-140113 020ND22.7 22.7
1,1,2,2-Tetrachloroethane ug/L 20 112 60-140111 020ND22.3 22.3
1,1,2-Trichloroethane ug/L 20 114 60-140112 120ND22.8 22.5
1,1-Dichloroethane ug/L 20 112 60-140108 320ND22.4 21.7
1,1-Dichloroethene ug/L 20 121 60-140122 120ND24.2 24.3
1,1-Dichloropropene ug/L 20 116 60-140115 020ND23.1 23.0
1,2,3-Trichlorobenzene ug/L 20 101 60-140108 720ND20.2 21.6
1,2,3-Trichloropropane ug/L 20 111 60-140110 120ND22.2 22.0
1,2,4-Trichlorobenzene ug/L 20 108 60-140113 420ND21.7 22.6
1,2,4-Trimethylbenzene ug/L 20 114 60-140117 320ND22.7 23.5
1,2-Dibromo-3-chloropropane ug/L 20 104 60-140110 520ND20.8 21.9
1,2-Dibromoethane (EDB)ug/L 20 117 60-140118 120ND23.3 23.6
1,2-Dichlorobenzene ug/L 20 111 60-140114 220ND22.2 22.8
1,2-Dichloroethane ug/L 20 92 60-14092 020ND18.5 18.4
1,2-Dichloropropane ug/L 20 119 60-140118 120ND23.8 23.6
1,3,5-Trimethylbenzene ug/L 20 116 60-140119 220ND23.3 23.8
1,3-Dichlorobenzene ug/L 20 112 60-140115 320ND22.4 23.1
1,3-Dichloropropane ug/L 20 121 60-140121 020ND24.2 24.1
1,4-Dichlorobenzene ug/L 20 111 60-140115 320ND22.3 22.9
2,2-Dichloropropane ug/L 20 113 60-140111 220ND22.7 22.3
2-Chlorotoluene ug/L 20 117 60-140121 320ND23.4 24.1
4-Chlorotoluene ug/L 20 111 60-140115 420ND22.2 23.0
Benzene ug/L 20 120 60-140115 420ND24.1 23.0
Bromobenzene ug/L 20 115 60-140117 220ND23.0 23.4
Bromochloromethane ug/L 20 111 60-140112 120ND22.3 22.4
Bromodichloromethane ug/L 20 103 60-140103 020ND20.5 20.6
Bromoform ug/L 20 108 60-140108 020ND21.5 21.6
Bromomethane ug/L 20 101 60-140113 1120ND20.3 22.5
Carbon tetrachloride ug/L 20 126 60-140122 320ND25.2 24.4
Chlorobenzene ug/L 20 118 60-140118 020ND23.6 23.6
Chloroethane ug/L 20 105 60-140109 320ND21.0 21.7
Chloroform ug/L 20 103 60-140106 320ND20.6 21.2
Chloromethane ug/L 20 111 60-140112 120ND22.2 22.3
cis-1,2-Dichloroethene ug/L 20 108 60-140107 020ND21.6 21.5
cis-1,3-Dichloropropene ug/L 20 122 60-140119 320ND24.4 23.7
Dibromochloromethane ug/L 20 116 60-140115 120ND23.1 22.9
Dibromomethane ug/L 20 117 60-140115 220ND23.4 23.1
Dichlorodifluoromethane ug/L 20 130 60-140128 120ND25.9 25.7
Diisopropyl ether ug/L 20 105 60-140104 120ND21.0 20.9
Ethylbenzene ug/L 20 120 60-140120 020ND23.9 24.0
Hexachloro-1,3-butadiene ug/L 20 124 60-140130 520ND24.7 26.1
Isopropylbenzene (Cumene)ug/L 20 121 60-140121 020ND24.2 24.2
m&p-Xylene ug/L 40 117 60-140117 040ND46.9 46.8
Methyl-tert-butyl ether ug/L 20 105 60-140103 220ND21.0 20.7
Methylene Chloride ug/L 20 99 60-140100 120ND19.9 20.0
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
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Huntersville, NC 28078
[phone]
Page 25 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
2999439MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92495067001
2999440
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
n-Butylbenzene ug/L 20 116 60-140120 420ND23.1 24.1
n-Propylbenzene ug/L 20 119 60-140122 220ND23.8 24.4
Naphthalene ug/L 20 97 60-140104 820ND19.3 20.9
o-Xylene ug/L 20 116 60-140118 220ND23.3 23.7
sec-Butylbenzene ug/L 20 121 60-140124 320ND24.2 24.9
Styrene ug/L 20 118 60-140117 120ND23.5 23.3
tert-Butylbenzene ug/L 20 102 60-140104 220ND20.3 20.7
Tetrachloroethene ug/L 20 129 60-140127 120ND25.7 25.4
Toluene ug/L 20 117 60-140116 120ND23.5 23.1
trans-1,2-Dichloroethene ug/L 20 112 60-140113 120ND22.4 22.7
trans-1,3-Dichloropropene ug/L 20 112 60-140110 220ND22.4 21.9
Trichloroethene ug/L 20 126 60-140125 120ND25.2 24.9
Trichlorofluoromethane ug/L 20 130 60-140132 120ND26.0 26.4
Vinyl chloride ug/L 20 124 60-140124 020ND24.8 24.9
1,2-Dichloroethane-d4 (S)%91 70-13089
4-Bromofluorobenzene (S)%98 70-13096
Toluene-d8 (S)%99 70-13098
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 26 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
566148
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92493928001, 92493928002, 92493928004, 92493928005, 92493928007, 92493928008, 92493928009
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3000627
Associated Lab Samples:92493928001, 92493928002, 92493928004, 92493928005, 92493928007, 92493928008, 92493928009
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 09/14/20 11:51
1,1,1-Trichloroethane ug/L ND 0.50 09/14/20 11:51
1,1,2,2-Tetrachloroethane ug/L ND 0.50 09/14/20 11:51
1,1,2-Trichloroethane ug/L ND 0.50 09/14/20 11:51
1,1-Dichloroethane ug/L ND 0.50 09/14/20 11:51
1,1-Dichloroethene ug/L ND 0.50 09/14/20 11:51
1,1-Dichloropropene ug/L ND 0.50 09/14/20 11:51
1,2,3-Trichlorobenzene ug/L ND 2.0 09/14/20 11:51
1,2,3-Trichloropropane ug/L ND 0.50 09/14/20 11:51
1,2,4-Trichlorobenzene ug/L ND 2.0 09/14/20 11:51
1,2,4-Trimethylbenzene ug/L ND 0.50 09/14/20 11:51
1,2-Dibromo-3-chloropropane ug/L ND 1.0 09/14/20 11:51
1,2-Dibromoethane (EDB)ug/L ND 0.50 09/14/20 11:51
1,2-Dichlorobenzene ug/L ND 0.50 09/14/20 11:51
1,2-Dichloroethane ug/L ND 0.50 09/14/20 11:51
1,2-Dichloropropane ug/L ND 0.50 09/14/20 11:51
1,3,5-Trimethylbenzene ug/L ND 0.50 09/14/20 11:51
1,3-Dichlorobenzene ug/L ND 0.50 09/14/20 11:51
1,3-Dichloropropane ug/L ND 0.50 09/14/20 11:51
1,4-Dichlorobenzene ug/L ND 0.50 09/14/20 11:51
2,2-Dichloropropane ug/L ND 0.50 09/14/20 11:51
2-Chlorotoluene ug/L ND 0.50 09/14/20 11:51
4-Chlorotoluene ug/L ND 0.50 09/14/20 11:51
Benzene ug/L ND 0.50 09/14/20 11:51
Bromobenzene ug/L ND 0.50 09/14/20 11:51
Bromochloromethane ug/L ND 0.50 09/14/20 11:51
Bromodichloromethane ug/L ND 0.50 09/14/20 11:51
Bromoform ug/L ND 0.50 09/14/20 11:51
Bromomethane ug/L ND 5.0 09/14/20 11:51
Carbon tetrachloride ug/L ND 0.50 09/14/20 11:51
Chlorobenzene ug/L ND 0.50 09/14/20 11:51
Chloroethane ug/L ND 1.0 09/14/20 11:51
Chloroform ug/L ND 0.50 09/14/20 11:51
Chloromethane ug/L ND 1.0 09/14/20 11:51
cis-1,2-Dichloroethene ug/L ND 0.50 09/14/20 11:51
cis-1,3-Dichloropropene ug/L ND 0.50 09/14/20 11:51
Dibromochloromethane ug/L ND 0.50 09/14/20 11:51
Dibromomethane ug/L ND 0.50 09/14/20 11:51
Dichlorodifluoromethane ug/L ND 0.50 09/14/20 11:51
Diisopropyl ether ug/L ND 0.50 09/14/20 11:51
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 27 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3000627
Associated Lab Samples:92493928001, 92493928002, 92493928004, 92493928005, 92493928007, 92493928008, 92493928009
Matrix:Water
Analyzed
Ethylbenzene ug/L ND 0.50 09/14/20 11:51
Hexachloro-1,3-butadiene ug/L ND 2.0 09/14/20 11:51
Isopropylbenzene (Cumene)ug/L ND 0.50 09/14/20 11:51
m&p-Xylene ug/L ND 1.0 09/14/20 11:51
Methyl-tert-butyl ether ug/L ND 0.50 09/14/20 11:51
Methylene Chloride ug/L ND 2.0 09/14/20 11:51
n-Butylbenzene ug/L ND 0.50 09/14/20 11:51
n-Propylbenzene ug/L ND 0.50 09/14/20 11:51
Naphthalene ug/L ND 2.0 09/14/20 11:51
o-Xylene ug/L ND 0.50 09/14/20 11:51
sec-Butylbenzene ug/L ND 0.50 09/14/20 11:51
Styrene ug/L ND 0.50 09/14/20 11:51
tert-Butylbenzene ug/L ND 0.50 09/14/20 11:51
Tetrachloroethene ug/L ND 0.50 09/14/20 11:51
Toluene ug/L ND 0.50 09/14/20 11:51
trans-1,2-Dichloroethene ug/L ND 0.50 09/14/20 11:51
trans-1,3-Dichloropropene ug/L ND 0.50 09/14/20 11:51
Trichloroethene ug/L ND 0.50 09/14/20 11:51
Trichlorofluoromethane ug/L ND 1.0 09/14/20 11:51
Vinyl chloride ug/L ND 1.0 09/14/20 11:51
1,2-Dichloroethane-d4 (S)%90 70-130 09/14/20 11:51
4-Bromofluorobenzene (S)%95 70-130 09/14/20 11:51
Toluene-d8 (S)%99 70-130 09/14/20 11:51
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3000628LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 50.850 102 60-140
1,1,1-Trichloroethane ug/L 45.350 91 60-140
1,1,2,2-Tetrachloroethane ug/L 52.550 105 60-140
1,1,2-Trichloroethane ug/L 48.850 98 60-140
1,1-Dichloroethane ug/L 45.450 91 60-140
1,1-Dichloroethene ug/L 45.550 91 60-140
1,1-Dichloropropene ug/L 46.050 92 60-140
1,2,3-Trichlorobenzene ug/L 54.750 109 60-140
1,2,3-Trichloropropane ug/L 51.750 103 60-140
1,2,4-Trichlorobenzene ug/L 56.050 112 60-140
1,2,4-Trimethylbenzene ug/L 50.450 101 60-140
1,2-Dibromo-3-chloropropane ug/L 55.350 111 60-140
1,2-Dibromoethane (EDB)ug/L 53.150 106 60-140
1,2-Dichlorobenzene ug/L 52.050 104 60-140
1,2-Dichloroethane ug/L 38.750 77 60-140
1,2-Dichloropropane ug/L 50.050 100 60-140
1,3,5-Trimethylbenzene ug/L 50.350 101 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 28 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3000628LABORATORY CONTROL SAMPLE:
LCSSpike
1,3-Dichlorobenzene ug/L 51.950 104 60-140
1,3-Dichloropropane ug/L 52.650 105 60-140
1,4-Dichlorobenzene ug/L 51.950 104 60-140
2,2-Dichloropropane ug/L 44.950 90 60-140
2-Chlorotoluene ug/L 51.750 103 60-140
4-Chlorotoluene ug/L 49.850 100 60-140
Benzene ug/L 48.650 97 60-140
Bromobenzene ug/L 50.450 101 60-140
Bromochloromethane ug/L 47.250 94 60-140
Bromodichloromethane ug/L 44.150 88 60-140
Bromoform ug/L 51.850 104 60-140
Bromomethane ug/L 45.350 91 60-140
Carbon tetrachloride ug/L 48.550 97 60-140
Chlorobenzene ug/L 51.050 102 60-140
Chloroethane ug/L 30.850 62 60-140
Chloroform ug/L 41.950 84 60-140
Chloromethane ug/L 46.450 93 60-140
cis-1,2-Dichloroethene ug/L 44.450 89 60-140
cis-1,3-Dichloropropene ug/L 51.750 103 60-140
Dibromochloromethane ug/L 52.150 104 60-140
Dibromomethane ug/L 49.050 98 60-140
Dichlorodifluoromethane ug/L 48.750 97 60-140
Diisopropyl ether ug/L 45.850 92 60-140
Ethylbenzene ug/L 50.150 100 60-140
Hexachloro-1,3-butadiene ug/L 55.950 112 60-140
Isopropylbenzene (Cumene)ug/L 51.450 103 60-140
m&p-Xylene ug/L 98.9100 99 60-140
Methyl-tert-butyl ether ug/L 44.550 89 60-140
Methylene Chloride ug/L 40.850 82 60-140
n-Butylbenzene ug/L 51.750 103 60-140
n-Propylbenzene ug/L 51.050 102 60-140
Naphthalene ug/L 56.450 113 60-140
o-Xylene ug/L 50.450 101 60-140
sec-Butylbenzene ug/L 51.650 103 60-140
Styrene ug/L 52.450 105 60-140
tert-Butylbenzene ug/L 42.950 86 60-140
Tetrachloroethene ug/L 52.250 104 60-140
Toluene ug/L 47.550 95 60-140
trans-1,2-Dichloroethene ug/L 44.350 89 60-140
trans-1,3-Dichloropropene ug/L 48.550 97 60-140
Trichloroethene ug/L 50.850 102 60-140
Trichlorofluoromethane ug/L 44.450 89 60-140
Vinyl chloride ug/L 49.250 98 60-140
1,2-Dichloroethane-d4 (S)%81 70-130
4-Bromofluorobenzene (S)%98 70-130
Toluene-d8 (S)%98 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 29 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3000629MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92493977001
3000630
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 88 60-14081 820ND17.5 16.2
1,1,1-Trichloroethane ug/L 20 85 60-14078 820ND17.0 15.7
1,1,2,2-Tetrachloroethane ug/L 20 86 60-14081 620ND17.1 16.2
1,1,2-Trichloroethane ug/L 20 85 60-14079 820ND17.0 15.7
1,1-Dichloroethane ug/L 20 86 60-14077 1020ND17.2 15.5
1,1-Dichloroethene ug/L 20 92 60-14085 920ND18.5 16.9
1,1-Dichloropropene ug/L 20 88 60-14080 1020ND17.6 16.0
1,2,3-Trichlorobenzene ug/L 20 78 60-14077 120ND15.6 15.4
1,2,3-Trichloropropane ug/L 20 83 60-14080 420ND16.6 16.0
1,2,4-Trichlorobenzene ug/L 20 83 60-14079 520ND16.6 15.8
1,2,4-Trimethylbenzene ug/L 20 86 60-14080 720ND17.2 16.0
1,2-Dibromo-3-chloropropane ug/L 20 82 60-14080 320ND16.5 16.1
1,2-Dibromoethane (EDB)ug/L 20 89 60-14079 1120ND17.8 15.9
1,2-Dichlorobenzene ug/L 20 83 60-14078 720ND16.7 15.6
1,2-Dichloroethane ug/L 20 74 60-14068 920ND14.9 13.6
1,2-Dichloropropane ug/L 20 88 60-14081 820ND17.5 16.1
1,3,5-Trimethylbenzene ug/L 20 88 60-14081 820ND17.6 16.3
1,3-Dichlorobenzene ug/L 20 85 60-14079 720ND17.0 15.8
1,3-Dichloropropane ug/L 20 92 60-14084 920ND18.5 16.8
1,4-Dichlorobenzene ug/L 20 84 60-14078 720ND16.7 15.5
2,2-Dichloropropane ug/L 20 86 60-14078 1020ND17.1 15.5
2-Chlorotoluene ug/L 20 88 60-14082 720ND17.6 16.4
4-Chlorotoluene ug/L 20 83 60-14078 620ND16.6 15.5
Benzene ug/L 20 87 60-14083 520ND17.4 16.5
Bromobenzene ug/L 20 87 60-14080 820ND17.3 16.1
Bromochloromethane ug/L 20 86 60-14078 920ND17.1 15.6
Bromodichloromethane ug/L 20 76 60-14071 620ND15.1 14.3
Bromoform ug/L 20 82 60-14077 520ND16.3 15.5
Bromomethane ug/L 20 93 60-14088 620ND18.7 17.6
Carbon tetrachloride ug/L 20 90 60-14085 620ND18.0 17.0
Chlorobenzene ug/L 20 89 60-14083 720ND17.9 16.7
Chloroethane ug/L 20 79 60-14073 820ND15.7 14.5
Chloroform ug/L 20 79 60-14075 620ND15.8 14.9
Chloromethane ug/L 20 89 60-14084 720ND17.9 16.7
cis-1,2-Dichloroethene ug/L 20 84 60-14074 1220ND16.8 14.9
cis-1,3-Dichloropropene ug/L 20 89 60-14084 720ND17.9 16.7
Dibromochloromethane ug/L 20 86 60-14078 1020ND17.3 15.7
Dibromomethane ug/L 20 86 60-14081 620ND17.1 16.1
Dichlorodifluoromethane ug/L 20 95 60-14086 1020ND18.9 17.1
Diisopropyl ether ug/L 20 81 60-14073 1120ND16.2 14.5
Ethylbenzene ug/L 20 90 60-14083 820ND18.0 16.7
Hexachloro-1,3-butadiene ug/L 20 95 60-14091 520ND19.1 18.1
Isopropylbenzene (Cumene)ug/L 20 92 60-14084 920ND18.4 16.8
m&p-Xylene ug/L 40 88 60-14081 840ND35.2 32.6
Methyl-tert-butyl ether ug/L 20 79 60-14073 820ND15.8 14.6
Methylene Chloride ug/L 20 82 60-14074 1020ND16.4 14.8
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 30 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3000629MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92493977001
3000630
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
n-Butylbenzene ug/L 20 89 60-14082 720ND17.7 16.5
n-Propylbenzene ug/L 20 90 60-14083 820ND18.0 16.6
Naphthalene ug/L 20 74 60-14076 220ND14.8 15.2
o-Xylene ug/L 20 88 60-14082 720ND17.6 16.3
sec-Butylbenzene ug/L 20 92 60-14085 820ND18.4 17.0
Styrene ug/L 20 88 60-14082 820ND17.6 16.3
tert-Butylbenzene ug/L 20 77 60-14071 820ND15.3 14.2
Tetrachloroethene ug/L 20 95 60-14085 1120ND19.0 17.1
Toluene ug/L 20 85 60-14081 520ND17.0 16.2
trans-1,2-Dichloroethene ug/L 20 87 60-14080 920ND17.5 16.0
trans-1,3-Dichloropropene ug/L 20 82 60-14077 620ND16.4 15.4
Trichloroethene ug/L 20 92 60-14087 520ND18.3 17.5
Trichlorofluoromethane ug/L 20 101 60-14093 820ND20.1 18.6
Vinyl chloride ug/L 20 95 60-14087 920ND19.1 17.4
1,2-Dichloroethane-d4 (S)%93 70-13092
4-Bromofluorobenzene (S)%98 70-13097
Toluene-d8 (S)%96 70-13099
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 31 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
566454
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92493928006
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3001904
Associated Lab Samples:92493928006
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 09/15/20 12:53
1,1,1-Trichloroethane ug/L ND 0.50 09/15/20 12:53
1,1,2,2-Tetrachloroethane ug/L ND 0.50 09/15/20 12:53
1,1,2-Trichloroethane ug/L ND 0.50 09/15/20 12:53
1,1-Dichloroethane ug/L ND 0.50 09/15/20 12:53
1,1-Dichloroethene ug/L ND 0.50 09/15/20 12:53
1,1-Dichloropropene ug/L ND 0.50 09/15/20 12:53
1,2,3-Trichlorobenzene ug/L ND 2.0 09/15/20 12:53
1,2,3-Trichloropropane ug/L ND 0.50 09/15/20 12:53
1,2,4-Trichlorobenzene ug/L ND 2.0 09/15/20 12:53
1,2,4-Trimethylbenzene ug/L ND 0.50 09/15/20 12:53
1,2-Dibromo-3-chloropropane ug/L ND 1.0 09/15/20 12:53
1,2-Dibromoethane (EDB)ug/L ND 0.50 09/15/20 12:53
1,2-Dichlorobenzene ug/L ND 0.50 09/15/20 12:53
1,2-Dichloroethane ug/L ND 0.50 09/15/20 12:53
1,2-Dichloropropane ug/L ND 0.50 09/15/20 12:53
1,3,5-Trimethylbenzene ug/L ND 0.50 09/15/20 12:53
1,3-Dichlorobenzene ug/L ND 0.50 09/15/20 12:53
1,3-Dichloropropane ug/L ND 0.50 09/15/20 12:53
1,4-Dichlorobenzene ug/L ND 0.50 09/15/20 12:53
2,2-Dichloropropane ug/L ND 0.50 09/15/20 12:53
2-Chlorotoluene ug/L ND 0.50 09/15/20 12:53
4-Chlorotoluene ug/L ND 0.50 09/15/20 12:53
Benzene ug/L ND 0.50 09/15/20 12:53
Bromobenzene ug/L ND 0.50 09/15/20 12:53
Bromochloromethane ug/L ND 0.50 09/15/20 12:53
Bromodichloromethane ug/L ND 0.50 09/15/20 12:53
Bromoform ug/L ND 0.50 09/15/20 12:53
Bromomethane ug/L ND 5.0 09/15/20 12:53
Carbon tetrachloride ug/L ND 0.50 09/15/20 12:53
Chlorobenzene ug/L ND 0.50 09/15/20 12:53
Chloroethane ug/L ND 1.0 09/15/20 12:53
Chloroform ug/L ND 0.50 09/15/20 12:53
Chloromethane ug/L ND 1.0 09/15/20 12:53
cis-1,2-Dichloroethene ug/L ND 0.50 09/15/20 12:53
cis-1,3-Dichloropropene ug/L ND 0.50 09/15/20 12:53
Dibromochloromethane ug/L ND 0.50 09/15/20 12:53
Dibromomethane ug/L ND 0.50 09/15/20 12:53
Dichlorodifluoromethane ug/L ND 0.50 09/15/20 12:53
Diisopropyl ether ug/L ND 0.50 09/15/20 12:53
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 32 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:3001904
Associated Lab Samples:92493928006
Matrix:Water
Analyzed
Ethylbenzene ug/L ND 0.50 09/15/20 12:53
Hexachloro-1,3-butadiene ug/L ND 2.0 09/15/20 12:53
Isopropylbenzene (Cumene)ug/L ND 0.50 09/15/20 12:53
m&p-Xylene ug/L ND 1.0 09/15/20 12:53
Methyl-tert-butyl ether ug/L ND 0.50 09/15/20 12:53
Methylene Chloride ug/L ND 2.0 09/15/20 12:53
n-Butylbenzene ug/L ND 0.50 09/15/20 12:53
n-Propylbenzene ug/L ND 0.50 09/15/20 12:53
Naphthalene ug/L ND 2.0 09/15/20 12:53
o-Xylene ug/L ND 0.50 09/15/20 12:53
sec-Butylbenzene ug/L ND 0.50 09/15/20 12:53
Styrene ug/L ND 0.50 09/15/20 12:53
tert-Butylbenzene ug/L ND 0.50 09/15/20 12:53
Tetrachloroethene ug/L ND 0.50 09/15/20 12:53
Toluene ug/L ND 0.50 09/15/20 12:53
trans-1,2-Dichloroethene ug/L ND 0.50 09/15/20 12:53
trans-1,3-Dichloropropene ug/L ND 0.50 09/15/20 12:53
Trichloroethene ug/L ND 0.50 09/15/20 12:53
Trichlorofluoromethane ug/L ND 1.0 09/15/20 12:53
Vinyl chloride ug/L ND 1.0 09/15/20 12:53
1,2-Dichloroethane-d4 (S)%85 70-130 09/15/20 12:53
4-Bromofluorobenzene (S)%95 70-130 09/15/20 12:53
Toluene-d8 (S)%98 70-130 09/15/20 12:53
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3001905LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 53.850 108 60-140
1,1,1-Trichloroethane ug/L 48.050 96 60-140
1,1,2,2-Tetrachloroethane ug/L 53.250 106 60-140
1,1,2-Trichloroethane ug/L 51.450 103 60-140
1,1-Dichloroethane ug/L 46.850 94 60-140
1,1-Dichloroethene ug/L 49.150 98 60-140
1,1-Dichloropropene ug/L 50.550 101 60-140
1,2,3-Trichlorobenzene ug/L 56.250 112 60-140
1,2,3-Trichloropropane ug/L 52.350 105 60-140
1,2,4-Trichlorobenzene ug/L 58.550 117 60-140
1,2,4-Trimethylbenzene ug/L 53.650 107 60-140
1,2-Dibromo-3-chloropropane ug/L 53.350 107 60-140
1,2-Dibromoethane (EDB)ug/L 56.050 112 60-140
1,2-Dichlorobenzene ug/L 54.550 109 60-140
1,2-Dichloroethane ug/L 40.050 80 60-140
1,2-Dichloropropane ug/L 52.650 105 60-140
1,3,5-Trimethylbenzene ug/L 53.750 107 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 33 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3001905LABORATORY CONTROL SAMPLE:
LCSSpike
1,3-Dichlorobenzene ug/L 54.950 110 60-140
1,3-Dichloropropane ug/L 55.750 111 60-140
1,4-Dichlorobenzene ug/L 54.150 108 60-140
2,2-Dichloropropane ug/L 47.150 94 60-140
2-Chlorotoluene ug/L 54.450 109 60-140
4-Chlorotoluene ug/L 52.850 106 60-140
Benzene ug/L 52.550 105 60-140
Bromobenzene ug/L 53.550 107 60-140
Bromochloromethane ug/L 49.350 99 60-140
Bromodichloromethane ug/L 45.750 91 60-140
Bromoform ug/L 53.050 106 60-140
Bromomethane ug/L 47.150 94 60-140
Carbon tetrachloride ug/L 51.150 102 60-140
Chlorobenzene ug/L 54.150 108 60-140
Chloroethane ug/L 34.150 68 60-140
Chloroform ug/L 43.950 88 60-140
Chloromethane ug/L 49.150 98 60-140
cis-1,2-Dichloroethene ug/L 46.950 94 60-140
cis-1,3-Dichloropropene ug/L 54.050 108 60-140
Dibromochloromethane ug/L 54.250 108 60-140
Dibromomethane ug/L 52.950 106 60-140
Dichlorodifluoromethane ug/L 52.350 105 60-140
Diisopropyl ether ug/L 46.450 93 60-140
Ethylbenzene ug/L 54.250 108 60-140
Hexachloro-1,3-butadiene ug/L 58.950 118 60-140
Isopropylbenzene (Cumene)ug/L 54.450 109 60-140
m&p-Xylene ug/L 106100 106 60-140
Methyl-tert-butyl ether ug/L 46.650 93 60-140
Methylene Chloride ug/L 42.450 85 60-140
n-Butylbenzene ug/L 55.350 111 60-140
n-Propylbenzene ug/L 54.350 109 60-140
Naphthalene ug/L 57.750 115 60-140
o-Xylene ug/L 53.750 107 60-140
sec-Butylbenzene ug/L 55.550 111 60-140
Styrene ug/L 56.250 112 60-140
tert-Butylbenzene ug/L 45.650 91 60-140
Tetrachloroethene ug/L 57.850 116 60-140
Toluene ug/L 50.650 101 60-140
trans-1,2-Dichloroethene ug/L 47.550 95 60-140
trans-1,3-Dichloropropene ug/L 49.750 99 60-140
Trichloroethene ug/L 54.150 108 60-140
Trichlorofluoromethane ug/L 48.950 98 60-140
Vinyl chloride ug/L 52.650 105 60-140
1,2-Dichloroethane-d4 (S)%78 70-130
4-Bromofluorobenzene (S)%99 70-130
Toluene-d8 (S)%97 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
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#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3001906MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92494018006
3001907
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 500 109 60-140112 3500ND546562
1,1,1-Trichloroethane ug/L 500 103 60-140102 1500ND513510
1,1,2,2-Tetrachloroethane ug/L 500 108 60-140111 3500ND539557
1,1,2-Trichloroethane ug/L 500 106 60-140110 4500ND530550
1,1-Dichloroethane ug/L 500 100 60-140102 2500ND500510
1,1-Dichloroethene ug/L 500 111 60-140112 1500ND554559
1,1-Dichloropropene ug/L 500 105 60-140110 4500ND526549
1,2,3-Trichlorobenzene ug/L 500 96 60-140102 6500ND481510
1,2,3-Trichloropropane ug/L 500 102 60-140109 7500ND512547
1,2,4-Trichlorobenzene ug/L 500 108 60-140111 3500ND538553
1,2,4-Trimethylbenzene ug/L 500 108 60-140113 4500ND541566
1,2-Dibromo-3-chloropropane ug/L 500 101 60-140111 9500ND506555
1,2-Dibromoethane (EDB)ug/L 500 115 60-140119 3500ND573593
1,2-Dichlorobenzene ug/L 500 107 60-140110 2500ND537550
1,2-Dichloroethane ug/L 500 82 60-14086 5500ND410429
1,2-Dichloropropane ug/L 500 108 60-140115 6500ND541574
1,3,5-Trimethylbenzene ug/L 500 110 60-140114 4500ND548568
1,3-Dichlorobenzene ug/L 500 107 60-140113 5500ND537565
1,3-Dichloropropane ug/L 500 112 60-140117 5500ND561587
1,4-Dichlorobenzene ug/L 500 108 60-140111 3500ND538556
2,2-Dichloropropane ug/L 500 103 60-140105 2500ND514524
2-Chlorotoluene ug/L 500 110 60-140115 5500ND548574
4-Chlorotoluene ug/L 500 107 60-140111 4500ND534553
Benzene ug/L 500 102 60-140120 2500348039904080
Bromobenzene ug/L 500 108 60-140113 4500ND541564
Bromochloromethane ug/L 500 105 60-140108 3500ND525539
Bromodichloromethane ug/L 500 92 60-14098 6500ND458488
Bromoform ug/L 500 96 60-140108 12500ND479538
Bromomethane ug/L 500 103 60-140114 10500ND515568
Carbon tetrachloride ug/L 500 113 60-140115 3500ND563577
Chlorobenzene ug/L 500 113 60-140116 2500ND565578
Chloroethane ug/L 500 101 60-14096 4500ND503481
Chloroform ug/L 500 94 60-14096 3500ND469482
Chloromethane ug/L 500 105 60-140106 2500ND524532
cis-1,2-Dichloroethene ug/L 500 99 60-140101 2500ND493503
cis-1,3-Dichloropropene ug/L 500 113 60-140117 4500ND564585
Dibromochloromethane ug/L 500 102 60-140108 6500ND512541
Dibromomethane ug/L 500 106 60-140108 2500ND531540
Dichlorodifluoromethane ug/L 500 114 60-140116 2500ND568581
Diisopropyl ether ug/L 500 95 60-14097 250039.3 513 526
Ethylbenzene ug/L 500 117 60-140121 150071013001310
Hexachloro-1,3-butadiene ug/L 500 123 60-140125 1500ND617625
Isopropylbenzene (Cumene)ug/L 500 116 60-140119 250036.7 617 630
m&p-Xylene ug/L 1000 111 60-140115 3100068.0 1180 1220
Methyl-tert-butyl ether ug/L 500 95 60-140100 3500201678700
Methylene Chloride ug/L 500 93 60-14094 1500ND464470
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 35 of 41
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92493928
EFA #2020-165
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
3001906MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92494018006
3001907
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
n-Butylbenzene ug/L 500 114 60-140117 2500ND572586
n-Propylbenzene ug/L 500 113 60-140118 450099.5 662 690
Naphthalene ug/L 500 112 60-140106 6500ND562529
o-Xylene ug/L 500 111 60-140114 250050.4 604 619
sec-Butylbenzene ug/L 500 118 60-140122 3500ND590608
Styrene ug/L 500 87 60-14091 4500ND436456
tert-Butylbenzene ug/L 500 96 60-14099 4500ND478497
Tetrachloroethene ug/L 500 123 60-140123 0500ND613616
Toluene ug/L 500 109 60-140111 250048.3 594 605
trans-1,2-Dichloroethene ug/L 500 103 60-140104 1500ND513519
trans-1,3-Dichloropropene ug/L 500 102 60-140106 5500ND509532
Trichloroethene ug/L 500 117 60-140122 4500ND584609
Trichlorofluoromethane ug/L 500 119 60-140121 2500ND594607
Vinyl chloride ug/L 500 113 60-140114 1500ND565571
1,2-Dichloroethane-d4 (S)%85 70-13085
4-Bromofluorobenzene (S)%98 70-13097
Toluene-d8 (S)%98 70-13098
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 36 of 41
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92493928
EFA #2020-165
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
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9800 Kincey Ave. Suite 100
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Page 37 of 41
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92493928
EFA #2020-165
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92493928001 566148MW-1A SM 6200B
92493928002 566148MW-7 SM 6200B
92493928003 565946MW-9 SM 6200B
92493928004 566148MW-13 SM 6200B
92493928005 566148MW-16 SM 6200B
92493928006 566454MW-17 SM 6200B
92493928007 566148RW-7 SM 6200B
92493928008 566148RW-8 SM 6200B
92493928009 566148RW-9 SM 6200B
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 09/15/2020 03:51 PM
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[phone]
Page 38 of 41
Page 39 of 41
Page 40 of 41
Page 41 of 41

APPENDIX H

 CSA activities from 1995.Volume of contaminated soil based on area of 20,000 ft² and avg. thickness of 11 ft.[yd3]Mass of contaminated soil[tons ‐ US]Mass of contaminated soil[kg]Average contaminantconcentration [mg/kg]Total soil contaminant mass [mg] Total contaminant mass [kg] Total contaminant mass [lb.] 8,148.00 12,222.0011,087,615.07 7,000.000 77,613,305,490.0077,613.31 171,079.90The baseline soil contaminant mass is estimated based on the average VOC concetrations identified during  the EFA ‐ NCDEQ Incident # 9211Baseline Soil Contaminant Mass Calculation for 

APPENDIX I

The baseline groundwater contaminant mass is estimated based on the analytical results
from 1995 sampling events.
Groundwater Contaminant Mass Removal Calculation
EFA - NCDEQ Incident # 6211
Greensboro, Guilford County, NC
Estimated Groundwater
Contaminant Mass
Based on Average VOC
Concentrations
[µg]
1995 5352.82 21877.95 10 10%1.17E+11
Date
Average VOC
Concentrations in
Monitoring Wells
[µg/L]
Area with
Monitoring Wells
[m2]
Estimated
Plume Depth
[m]
Estimated
Porosity
[%]
2.92E+09
2019 59.6 21877.95 10 10%1.30E+09
2015 & 2018 133.32 21877.95 10 10%
3.00E+092020137.18 21877.95 10 10%
MW ID
Benzene Concentration
(1995)Naphthalene (1995)
Total Xylenes Concentration
(1995)
Total Benzene Concentration
(July 2019)Naphthalene (July 2019)
Total Xylenes Concentration
(July 2019)
MW-2 800 2300 36000 0 32.4 13.2
MW-3 520 7400 19000 0 12.2 6.3
MW-4 82 440 180 0 2.5 21.6
MW-5 0 0 0 0 68.7 0
MW-6 0 0 0 0 0 0
MW-7 11 470 190 3.8 5.3 22.9
MW-8 0 310 99 0 0 0
MW-9 100 560 170 40.9 6.1 35.9
MW-10 6.7 110 2.6 0 0 0
MW-11 0 0 0 0 0 0
MW-12 4.5 84 19 0 0 0
MW-13 0 320 160 0 410 93
MW-14 7.8 149 91 0 0 0
Average 117.85 934.08 4300.89 3.44 41.32 14.84
MW ID
Benzene Concentration
(September 2020)
Naphthalene
(September 2020)
Total Xylenes Concentration
(September 2020)
Total Benzene Concentration
( )Naphthalene ( )
Total Xylenes Concentration
( )
MW-2 0 32.4 13.2
MW-3 0 12.2 6.3
MW-4 0 2.5 21.6
MW-5 0 68.7 0
MW-6 0 0 0
MW-7 4.8 399 18.9
MW-8 0 0 0
MW-9 34.8 697 53.2
MW-10 0 0 0
MW-11 0 0 0
MW-12 0 0 0
MW-13 0 325 93.8
MW-14 0 0 0
Average 3.05 118.22 15.92 0.00 0.00 0.00
Average Benzene, Naphthalene, & Total
Xylenes Added Together 5352.82 59.60
EFA
Average Benzene, Naphthalene, & Total
Xylenes Added Together 137.18 0.00