MO-8633_40167_CA_MRP_20200122

Groundwater Monitoring Report

Childers and Sons Lumber
3943 North Carolina Highway 16 North
Taylorsville, Alexander County, North Carolina 28681
NCDEQ Incident No. 40167
ATC Project No. SLP4016704

January 22, 2020

Groundwater Monitoring Report January 22, 2020
Childers and Sons Lumber - Incident #40167 ATC Project No. SLP4016704

TABLE OF CONTENTS
1.0 SITE IDENTIFICATION .......................................................................................1
2.0 EXECUTIVE SUMMARY .....................................................................................2
3.0 SITE DESCRIPTION ..............................................................................................3
3.1 Site Characterization ................................................................................3
3.2 Site Background .......................................................................................3
3.3 Site and Regional Geology ......................................................................4
3.4 Site and Regional Hydrogeology .............................................................5
4.0 SITE CHARACTERIZATION ..............................................................................5
4.1 Groundwater Levels .................................................................................5
4.2 Water Supply Wells .................................................................................6
4.3 Groundwater Quality ...............................................................................6
5.0 CONCLUSIONS AND RECOMMENDATIONS .................................................7
TABLES AND CHARTS
Table 1 Water Supply Well Information
Table 2 Monitoring Well Construction Details
Table 3 Groundwater Elevation Data
Chart 1 & 2 Groundwater Elevation versus LNAPL Thickness
Table 4 Water Quality Parameters
Table 5 Current Groundwater Analytical Results
Table 6 Historical Groundwater Analytical Results

FIGURES
Figure 1 Site Location Map
Figure 2 Water Supply Well Map
Figure 3 Site Map
Figure 4 Groundwater Elevation Contour Map
Figure 5 Benzene Isoconcentration Contour Map
Figure 6 Contaminants of Concern Map

APPENDICES

Appendix A Field Notes
Appendix B Laboratory Analytical Reports

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Childers and Sons Lumber - Incident #40167 ATC Project No. SLP4016704

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2.0 EXECUTIVE SUMMARY
ATC Associates of North Carolina, P.C. (ATC) has completed a Groundwater Monitoring Report
documenting a groundwater monitoring event conducted on October 30, 2019, at the Childers
and Sons Lumber site, located at 3943 North Carolina Highway 16 North, in Alexander County,
Taylorsville, North Carolina. The assessment work is being performed based on the October 17,
2019, Task Authorization (TA) approval (TA-04) by the Trust Fund Branch of the Underground
Storage Tank (UST) Section, Division of Waste Management, North Carolina Department of
Environmental Quality (NCDEQ). The work is being performed as part of the State Lead Contract
#N17004 between NCDEQ and ATC.

At the time of ATC’s site visits, the former Childers and Sons Lumber appeared to be
unoccupied. Municipal water is reportedly available to the site vicinity. One 3,000-gallon
gasoline UST, one 1,500-gallon gasoline/diesel UST, and associated piping and dispensers were
formerly used at the site. Information provided to ATC indicates that the USTs were in operation
from 1970 to 1992. The USTs were reportedly abandoned; however, ATC could not locate any
UST-Closure documentation. Seven water supply wells have been previously identified within
1,000 feet of the site. Four water supply wells (WSW-1, WSW-2, WSW-3, and WSW-7) are
located within 500 feet of the site. Water supply well WSW-1, located on-site, has been
inoperable since at least 2014. The site has been classified as a High Risk site due to the presence
of water supply wells within 1,000 feet of the site.

As part of the site activities for this TA, ATC completed a groundwater monitoring event. The
groundwater monitoring event was conducted to evaluate the effectiveness of an 8-hour aggressive
fluid-vapor recovery (AFVR) event conducted in January 2019. The findings from the monitoring
event indicate the following:

 Light non-aqueous phase liquid (LNAPL) was detected in monitoring wells MW-1 and
MW-5 at thickness of 1.70 feet and 6.51 feet, respectively, with prior maximum thicknesses
of 0.69 feet and 0.02 feet, respectively;
 Groundwater samples collected from monitoring wells MW-2 through MW-4, and MW-6
all contained concentrations of one or more constituents above their respective North
Carolina Groundwater Title 15A NCAC 2L .0202 Groundwater Quality Standard (2L Standard),
none of which exceeded Gross Contamination Levels (GCLs);
 Water supply well WSW-1 was inoperable and not sampled; and
 Groundwater flow from the source area is generally to the east, southeast, and south.

The increase of LNAPL in monitoring wells MW-1 and MW-5 may be the result of changes in
water levels, and mobilizing LNAPL from the January 2019 AFVR event. Due to the lack of
closure or removal records, it is possible USTs remain on site.

ATC presents the following recommendations:

 Conduct an 8-hour AFVR event utilizing monitoring wells MW-1 and MW-5 as target
extraction wells;
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 Mobilize to the site approximately two weeks after the AFVR event to collect liquid level
data and evaluate the effectiveness of the AFVR at removing LNAPL from the subsurface;
 Conduct a Ground Penetrating Radar (GPR) survey in the reported areas of the USTs to
evaluate the presence of USTs remaining at the site;
 Consider abandoning the on-site water supply well WSW-1;
 Conduct an updated receptor survey, including confirmation on the status of WSW-3; and
 Sample operable water supply wells within 500 feet of the source area.

ATC will continue to review alternative remedial options to address the LNAPL and GCL
exceedances.

3.0 SITE DESCRIPTION
3.1 Site Characterization
The NCDEQ retained ATC to provide environmental consulting services for the former Childers
and Sons Lumber site, located at 3943 Highway 16 North, in Taylorsville, Alexander County, North
Carolina. Figure 1 depicts the site location on a topographic map. The work is being performed as
part of the State Lead Contract # N17004 between the NCDEQ and ATC. At the time of ATC’s site
visit in October 2019, the site was unoccupied. A water supply well (WSW-1) is located on-site, but
has been reportedly inoperable since 2014. Municipal water is reportedly available to the site
vicinity, and a municipal water line borders the site to the east along the west side of North Carolina
Highway 16 North. Water supply well information is presented in Table 1, and a map depicting the
water supply wells identified during the 2014 receptor survey is included as Figure 2. A site map is
presented as Figure 3.

3.2 Site Background
One 3,000-gallon gasoline UST, one 1,500-gallon gasoline/diesel UST, and associated piping
and dispensers were reported to be used at the site. Evidence of USTs or associated dispensing
equipment was not observed during a site visit conducted by ATC in 2014. One above-ground
storage tank (AST), assumed to be used for heating oil, was observed behind the building during
that site visit. The AST appeared to be out of service. The USTs were reportedly in operation
from approximately 1970 to 1992; however specific information about the dates of installation or
removal could not be located. The possibility exists that the USTs remain on site.

A Phase II Environmental Site Assessment (ESA) report, dated October 2, 2012, was completed
by Geoscience & Technology, PA. Soil samples collected in the vicinity of the former gasoline
dispenser and UST area were analyzed for Total Petroleum Hydrocarbons (TPH) – Gasoline
Range Organics (GRO) and TPH – Diesel Range Organics (DRO). Analytical results indicated
TPH-GRO were detected at 2,880-milligrams per kilogram (mg/kg) and TPH-DRO were
detected at 1,100-mg/kg. A groundwater sample was collected from a temporary monitoring
well in the vicinity of the USTs. Laboratory analysis of the groundwater sample indicated the
presence of petroleum constituents BTEX and naphthalene. The analytical results of the soil and
groundwater samples indicated a release from the UST system which impacted both soil and
groundwater. The release was reported to the Mooresville Regional Office on July 16, 2013.

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In April 2014, the site was recommended for the State Lead Cleanup Program, and was accepted
into the program later that year. ATC conducted a receptor survey, supervised the installation of
two permanent groundwater monitoring wells (MW-1 and MW-2), and collected soil and
groundwater samples for analysis. Groundwater analysis indicated the presence of benzene
above GCLs. Water supply wells were identified within 1,000-feet of the site, but not sampled.
Additional assessments by ATC in 2015 included the installation of groundwater monitoring
wells MW-3 and MW-4, and conducting an 8-hour AFVR event to address LNAPL detected in
groundwater monitoring well MW-1.

In 2018, ATC continued to assess and remediate the site through groundwater monitoring events,
an AFVR event, and the installation of monitoring well MW-5. LNAPL was detected monitoring
wells MW-1 and MW-5, and analytical data indicated that groundwater remained impacted by
petroleum hydrocarbons.

In January 2019, ATC supervised the installation of monitoring well MW-6 on an adjoining
property to further delineate the extent of LNAPL and petroleum impact, and conducted an
eight-hour AFVR event utilizing monitoring wells MW-1 and MW-5 as target extraction wells.
The subsequent groundwater monitoring event approximately 30 days following the AFVR
indicated the AFVR was effective at removing LNAPL from the subsurface. ATC recommended
a comprehensive groundwater sampling event approximately six months after the AFVR to
evaluate the longer term effectiveness of the AFVR event.

Note that the AFVR event conducted on July 20, 2015, extracting from well MW-1, and the AFVR
event conducted on January 29, 2019, extracting from wells MW-1 and MW-5, removed 1.28 and
12.10 pounds of hydrocarbons in the vapor phase, and 45 and 260 gallons of water, respectively.

3.3 Site and Regional Geology

According to the Geologic Map of North Carolina, produced by the State of North Carolina in
1985, the Site lies in the Inner Piedmont Belt of the Piedmont Physiographic Province of North
Carolina. The rock types of the inner Piedmont Belt been identified as metamorphic, including
gneiss and schist, which have been intruded by younger granitic rocks. The shallow subsurface in
most areas of the Piedmont contain residual soil overburden, including structure-free residuum,
saprolite, and partially weathered rock (PWR) that derive from in-place weathering of the
crystalline bedrock. Occasional areas containing recent deposits of alluvium in the uppermost
subsurface are found near streams and rivers. Saprolite and PWR typically contain some relict
structures from the original rock material. Depth to rock ranges from ground surface at
occasional outcrops to depths of greater than 100 feet in areas of easily weathered rock.

During installation of monitoring well MW-6, surficial soils consisted primarily of silty clay to a
depth of approximately ten feet below ground surface (BGS). A silty clay mixture with rock
fragments was encountered from depths of approximately 10 to 40 feet BGS. Additional
information on site specific geological conditions was not available at the time of reporting.

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3.4 Site and Regional Hydrogeology

Depth to water at the site ranges from approximately 29 to 36 feet BGS based on historical
gauging data. Historical groundwater elevation data indicates that groundwater flow beneath the
site trends towards the east, southeast, and south.

The shallow aquifer occurrence varies in depth from ground surface at springs, creeks, and rivers
to as deep as 50 feet or more beneath upland surfaces in some parts of the Piedmont. Water in the
alluvium or unconsolidated residual material, including saprolite and PWR, usually behaves as
an unconfined aquifer, or water table, and will yield water with head elevation equivalent to the
first elevation where water was encountered. Permeability varies with lithology and is typically
relatively low in residual soils, with higher permeability in saprolite or PWR due to relict rock
texture and variable susceptibility to weathering exhibited by different minerals in the rock.
Groundwater flow in residual soils or alluvium is usually in rough concurrence with local
topographic conditions and is toward local drainage features. Based on the most recent data from
the monitoring well network, shallow groundwater in the immediate vicinity of the site generally
trends to the east.

The bedrock fractures or other planar features of the Piedmont Physiographic Province generally
constitute the bedrock aquifer, with the surrounding rock material being effectively
impermeable. Along with fractures, contacts between rock bodies probably constitute zones of
significant groundwater occurrence in the bedrock. The surrounding material and overlying
residuum tend to make the bedrock aquifer a semi-confined aquifer. That is, the overlying water
and soil weight normally results in pressure that causes water in a borehole, which intersects a
fracture or other feature, to rise above the elevation of the fracture or feature. Modern water
supply wells in the Piedmont, likely including those in the site vicinity, are typically installed
with a surface casing through the unconsolidated material, and an open borehole into the bedrock
where water-bearing fractures are encountered.

4.0 SITE CHARACTERIZATION
4.1 Groundwater Levels
ATC completed a groundwater monitoring event on October 30, 2019, using groundwater
monitoring wells MW-1 through MW-6 and water supply well WSW-1. The locations of the site
wells are illustrated on Figure 3. Monitoring well construction details are included in Table 2.

The site wells were gauged for depth to LNAPL (if present), depth to groundwater, and total well
depth from TOC using a decontaminated oil/water interface probe in wells with historic LNAPL
(MW-1 and MW-5) or an electronic water level indicator. LNAPL was detected in monitoring
well MW-1 at a thickness of 1.70 feet, and in monitoring well MW-5 at a thickness of 6.51 feet.
Groundwater elevations are corrected for the presence of LNAPL, when present, using an assumed
density of 0.8581. Groundwater elevations were calculated based on top of casing (TOC) elevation
data. Depth to groundwater and groundwater elevation data are summarized in Table 3.

The increase in LNAPL in wells MW-1 and MW-5 may be the result of changes in water levels.
The depth to groundwater and LNAPL with time are illustrated in Charts 1 and 2. Note the rise
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in groundwater levels since May 2018, with little to no LNAPL until the drop in groundwater
levels between February 28, 2019, and October 30, 2019. The drop in groundwater levels may
have mobilized the LNAPL. In addition, the AFVR event conducted on January 29, 2019, may
also have mobilized LNAPL, perhaps opening a preferential pathway and pulling LNAPL
toward the wells.

A groundwater contour map depicting groundwater flow is presented as Figure 4 and indicates
that shallow groundwater flows to the east-southeast. Field notes from the October 30, 2019,
groundwater monitoring event are presented in Appendix A.

4.2 Water Supply Wells
Based on the receptor survey conducted by ATC in 2014, seven water supply wells have been
identified within 1,000 feet of the site. ATC attempted to sample water supply well WSW-1,
located on site, during the October 30, 2019, groundwater monitoring event, but the supply well
was inoperable. Table 1 presents the water supply well information. The remaining six identified
water supply wells were not included for sampling during the groundwater monitoring event.

4.3 Groundwater Quality
On October 30, 2019, groundwater samples were collected from monitoring wells MW-2, MW-3,
MW-4, and MW-6. During sampling activities, the monitoring wells were purged of three standing
well-volumes, or purged dry and allowed to recharge prior to groundwater sample collection. A
field blank sample, FB-1, was collected on-site by ATC personnel using laboratory supplied
deionized water.

Water quality parameters were recorded at the time of sampling, are reported in the field notes
included in Appendix A, and summarized on Table 4. The water samples were collected in
laboratory-supplied preserved containers, placed on ice, entered into chain of custody, and delivered
to North Carolina accredited Pace Analytical located in Huntersville, North Carolina. The
groundwater samples were analyzed by Standard Method 6200B for VOCs including petroleum
constituents. The analytical report is included in Appendix B.

Current groundwater analytical results are summarized in Table 5. Historical groundwater analytical
results are shown in Table 6. The groundwater analytical results were compared to the 2L Standards
and GCLs. Groundwater analytical results indicate the following:

 LNAPL was detected in monitoring wells MW-1 and MW-5;
 The groundwater samples collected from monitoring wells MW-2, MW-3, MW-4, and
MW-6 contained concentrations one or more petroleum constituents above their 2L
Standards.

Figure 5 depicts a dissolved-phase isoconcentration map for benzene. Figure 6 shows select
constituents that were detected above their respective 2L Standards.

VOC concentrations in wells MW-3 and MW-4 are generally decreasing with time. VOC
concentrations in well MW-2 appear to be stable over time. VOC concentrations in well MW-6,
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located downgradient of the source areas have increased since the February 28, 2019, sampling
event. No trend can be established with only two sampling events.

As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of
the laboratory report was conducted. During the review, it was found that the samples were
received from the laboratory in acceptable condition and properly preserved. The samples were
analyzed within correct holding times and reported within the lab report, and the chain of
custody was properly completed by all parties. The laboratory QC report shows that an internal
blank was analyzed for each method that was used for the original samples. The laboratory
fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for
each analytical method. Analytical results of the field blank FB-1 reported none of the
constituents analyzed for were above the laboratory detection limits. Refer to the laboratory
reports in Appendix B for details regarding QA results for the laboratory samples and any noted
exceptions. Overall, ATC concludes that the laboratory results are usable. Lab qualifications are
defined on the corresponding tables.

5.0 CONCLUSIONS AND RECOMMENDATIONS

On behalf of the Trust Fund Branch of the NCDEQ UST Section, ATC has completed a
Groundwater Monitoring Report documenting field activities completed on October 30, 2019.
The work included a groundwater monitoring event for the Childers and Sons Lumber site,
located at 3943 North Carolina Highway 16 North in Taylorsville, Alexander County, North
Carolina. The findings from the groundwater sampling indicate the following:

 LNAPL was detected in monitoring well MW-1 at a thickness of 1.70 feet, and
monitoring well MW-5 at a thickness of 6.51 feet, with prior maximum thicknesses of
0.69 and 0.02 feet, respectively;
 Groundwater samples collected from monitoring wells MW-2 through MW-4, and MW-6
all contained concentrations of one or more constituents above their respective 2L
Standards;
 Water supply well WSW-1 was inoperable not sampled; and
 The direction of groundwater flow from the source area is generally to the east, southeast,
and south.

The increase of LNAPL in monitoring wells MW-1 and MW-5 may be the result of changes in
water levels, and mobilizing LNAPL from the January 2019 AFVR event. Due to the lack of
closure or removal records, it is possible USTs remain on site.

ATC makes the following recommendations:

 Conduct an 8-hour AFVR event utilizing monitoring wells MW-1 and MW-5 as target
extraction wells;
 Mobilize to the site approximately two weeks after the AFVR event to collect liquid level
data and evaluate the effectiveness of the AFVR at removing LNAPL from the subsurface;
 Conduct a GPR survey in the reported areas of the USTs, as indicated on Figure 3, to
evaluate the presence of USTs remaining at the site;
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 Consider abandoning the on-site water supply well WSW-1;
 Conduct an updated receptor survey, including confirmation on the status of WSW-3; and
 Sample operable water supply wells within 500 feet of the source area.

ATC will continue to review alternative remedial options to address the LNAPL and GCL
exceedances.

TABLES
TABLE 1
WATER SUPPLY WELL INFORMATION
Childers and Sons Lumber
3943 NC Highway 16 North
Taylorsville, Alexander County, North Carolina
NCDEQ Incident #40167
Well ID Well Owners /
Well Users Property Address Mailing Address Phone Number Well Use
(P/I/N)
Estimated
Distance/Direction
from Source Area
(ft)
WSW-1 Derek & Traci
Fox
3943 NC Highway 16N
Taylorsville, NC 28681
4451 NC Highway 16N
Taylorsville, NC 28681 828-228-6280 N Site Property
WSW-2 Derek & Traci
Fox
3911 NC Highway 16N
Taylorsville, NC 28681
2810 Vashti Road
Taylorsville, NC 28681 828-310-5037 L 245' Northwest
WSW-3 Billie Bentley 3896 NC Highway 16N
Taylorsville, NC 28681
3896 NC Highway 16N
Taylorsville, NC 28681 NA Unknown 190' Southeast
WSW-4 Janet & Conrad
Millsaps
3850 NC Highway 16N
Taylorsville, NC 28681
469 Millsaps Farm Ln
Hiddenite, NC 28636 828-632-5479 N 620' Southeast
WSW-5 Noel St.Clair 3818 NC Highway 16N
Taylorsville, NC 28681
3818 NC Highway 16N
Taylorsville, NC 28681 828-391-7081 N 670' Southeast
WSW-6*Frank Smith Sr.148 Frank Smith MHP Drive
Taylorsville, NC 28681
PO Box 671
Taylorsville, NC 28681 NA P 1,000' Northeast
WSW-7 Derek & Traci
Fox
3855 NC Highway 16N
Taylorsville, NC 28681
2810 Vashti Road
Taylorsville, NC 28681 828-310-5037 L 245' Southwest
Notes:
P / I / N/ L = Potable water supply / Irrigation / Not in use / Livestock
NA = Not Applicable
* = WSW-6 provides water to 5-6 residences
TABLE 2
MONITORING WELL CONSTRUCTION DETAILS
Childers and Sons Lumber
3943 NC Highway 16 North
Taylorsville, Alexander County, North Carolina
NCDEQ Incident #40167
Well ID Date Installed Screen Interval
(feet)
Well Diameter
(inches)
Total Depth
(feet)
Top of Casing
Elevation
(feet)
MW-1 8/7/2014 25 - 40 2 40 100.00
MW-2 8/7/2014 25 - 40 2 40 100.75
MW-3 1/27/2015 30 - 40 2 40 99.04
MW-4 1/27/2015 30 - 40 2 40 97.88
MW-5 8/31/2018 25 - 40 2 40 99.90
MW-6 1/21/2019 29 - 39 2 39 98.16
TABLE 3
GROUNDWATER ELEVATION DATA
Childers and Sons Lumber
3943 NC Highway 16 North
Taylorsville, Alexander County, North Carolina
NCDEQ Incident #40167

8/8/2014 --33.42 NA 66.58
7/20/2015 34.54 35.23 0.69 65.36
8/7/2015 34.94 35.00 0.06 65.05
5/7/2018 35.67 36.17 0.50 64.26
10/5/2018 33.20 33.21 0.01 66.80
1/29/2019 30.45 30.82 0.37 69.50
2/28/2019 --29.64 NA 70.36
10/30/2019 30.35 32.05 1.70 69.41
8/8/2014 --34.22 NA 65.06
7/20/2015 --35.57 NA 63.71
8/7/2015 --35.82 NA 63.46
5/7/2018 --35.98 NA 63.30
10/5/2018 --33.96 NA 65.32
1/29/2019 --31.31 NA 67.97
2/28/2019 --31.13 NA 69.62
10/30/2019 --31.40 NA 69.35
1/28/2015 --32.84 NA 65.47
7/20/2015 --33.37 NA 64.94
8/7/2015 --33.69 NA 64.62
5/7/2018 --33.48 NA 64.83
10/5/2018 --31.69 NA 66.62
1/29/2019 --28.96 NA 69.35
2/28/2019 --28.90 NA 70.14
10/30/2019 --29.65 NA 69.39
1/28/2015 --32.50 NA 64.66
7/20/2015 --32.94 NA 64.22
8/7/2015 --33.24 NA 63.92
5/7/2018 --33.09 NA 64.07
10/5/2018 --31.35 NA 65.81
2/28/2019 --28.55 NA 69.33
10/30/2019 --29.45 NA 68.43
10/5/2018 33.33 33.35 0.02 65.85
1/29/2019 --30.45 NA 68.73
2/28/2019 --29.79 NA 70.11
10/30/2019 29.40 35.91 6.51 69.58
1/29/2019 --29.66 NA NM NM
2/28/2019 --29.15 NA 69.01
10/30/2019 --32.82 NA 65.34
Notes:
TOC = Top of Casing
LNAPL = Light Non-Aqueous Phase Liquid
-- = LNAPL not detected
NA = Not applicable
Well network TOC measured and referenced to arbitrary elevation of 100.00 feet at MW-1
Well network TOC elevations recalculated by ATC based on measurments obtained February 28, 2019.
Groundwater elevations were corrected for the presence of LNAPL using an assumed relative density of 0.8581.
Corrected groundwater elevation = (top of casing elevation - depth to water) + (LNAPL thickness x 0.8581)
MW-2
MW-3
MW-4
MW-5
100.75
25-40
Groundwater
Elevation
(Feet)
Depth to
Groundwater
(Feet)
Depth to LNAPL
(Feet)Date Gauged
30 - 40
99.90
25-40
98.16
99.04
30 - 40
97.88
25 - 40
MW-6 29 - 39
99.18
Well ID
Well Screen
Interval
(Feet)
LNAPL
Thickness
(Feet)
97.16
TOC
Elevation
(Feet)
100.00
99.28
98.31
100.00
MW-1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
63
64
65
66
67
68
69
70
71
8/1/2014 7/31/2016 7/31/2018 LNAPL Thickness (ft)Corrected Groundwater Elevation (ft)Date
Chart 1. Groundwater Elevation versus LNAPL Thickness (MW-1)
Groundwater Elevation LNAPL Thickness
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
66
66
67
67
68
68
69
69
70
70
71
8/1/2014 7/31/2016 7/31/2018 LNAPL Thickness (ft)Corrected Groundwater Elevation (ft)Date
Chart 2. Groundwater Elevation versus LNAPL Thickness (MW-5)
Groundwater Elevation LNAPL Thickness
TABLE 4
Water Quality Parameters
Childers and Sons Lumber
3943 NC Highway 16 North
Taylorsville, Alexander County, North Carolina
NCDEQ Incident #40167
Well Date Temperature
(◦C)
Conductivity
(mS/cm)
pH
(su)
ORP
(mV)
DO
(mg/L)
5/7/2018
10/5/2018
2/28/2019 18.92 0.440 4.66 263 1.01
10/30/2019
5/7/2018 21.17 0.350 4.37 261 0.46
10/5/2018 24.90 0.526 4.19 307 1.22
2/28/2019 18.33 0.459 4.38 322 1.36
10/30/2019 17.32 0.221 3.49 243 2.12
5/7/2018 21.72 0.067 4.85 229 1.20
10/5/2018 23.98 0.075 5.10 229 4.88
2/28/2019 18.69 0.083 5.11 268 0.96
10/30/2019 17.92 0.038 5.56 177 2.70
5/7/2018 21.99 0.206 4.65 302 6.83
10/5/2018 25.08 0.115 5.00 232 2.27
2/28/2019 19.45 0.219 4.91 292 0.96
10/30/2019 19.28 0.076 3.63 228 1.88
10/5/2018
2/28/2019 18.95 0.236 4.82 226 0.77
10/30/2019
2/28/2019 17.97 0.812 4.47 307 2.23
10/30/2019 17.70 0.544 3.84 204.3 2.29
5/7/2018
10/5/2018
2/28/2019
10/30/2019
NOT MEASURED - INOPERABLE
MW-6
MW-5
MW-4
MW-3
NOT MEASURED - INOPERABLE
NOT MEASURED - LNAPL
NOT MEASURED - INOPERABLE
WSW-1
NOT MEASURED - INOPERABLE
NOT MEASURED - LNAPL
NOT MEASURED - LNAPL
MW-1
MW-2
NOT MEASURED - LNAPL
NOT MEASURED - LNAPL
TABLE 5
CURRENT GROUNDWATER ANALYTICAL RESULTS
Childers and Sons Lumber
3943 NC Highway 16 North
Taylorsville, Alexander County, North Carolina
NCDEQ Incident #40167

Well ID Sample Date
BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneDiisopropyl Ether (DIPE)2-Butanone (MEK)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneIsopropylbenzene (Cumene)2-Hexanonen-Propylbenzene1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene 1,2,3-TrichloropropaneChloroformMW-1 10/30/2019
MW-2 10/30/2019 450 4,110 2,470 13,000 173 1,090 <16.7 493 <17.6 <12.3 <12.5 134 161J 430 3,290 808 <13.6 70.4
MW-3 10/30/2019 1.1 0.99 <0.24 <0.50 <0.44 <0.66 <0.33 <3.6 <0.35 <0.25 <0.25 <0.24 <0.60 <0.24 <0.19 <0.23 <0.27 <0.35
MW-4 10/30/2019 516 5,850 1,090 6,130 <22.2 371 <16.7 N/A <17.6 <12.3 <12.5 59.3 N/A 182 1,480 383 <13.6 96.6
MW-5 10/30/2019
MW-6 10/30/2019 55.4 829 502 2,150 <2.2 126 <1.7 <18.0 12.2 11.9 1.8J 75.4 27.3 92.6 492 174 6.3 4.6
WSW-1 10/30/2019
1 600 600 500 20 6 70 4,000 70 70 70 70 40 70 400 400 0.005 70
5,000 260,000 84,500 85,500 20,000 6,000 70,000 4,000,000 6,900 8,500 15,000 25,000 40,000 30,000 28,500 25,000 N/A 70000
Notes:
Concentrations are reported in micrograms per liter (mg/l) or parts per billion.
ND = Not detected at or above the laboratory detection limit
GCL = Gross Contamination Level
J = Estimated value above or equal to Method Detection Limit and less than Quantification Limit.
Underlined values indicate detection limit is above 2L Standard due to dilution.
Values in BOLD print indicate levels above 2L Standards
Values in BOLD AND ITALICS print indicate levels above GCL
LNAPL = Light Non-Aqueous Phase Liquid
2L Standard
GCL
NOT SAMPLED - INOPERABLE
NOT SAMPLED - LNAPL MEASURED - 1.70'
NOT SAMPLED - LNAPL MEASURED - 6.51'
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
Childers and Sons Lumber
3943 NC Highway 16 North
Taylorsville, Alexander County, North Carolina
NCDEQ Incident #40167
BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneDiisopropyl Ether (DIPE)2-Butanone (MEK)n-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-Dichlorobenzene1,3-Dichlorobenzene1,4-DichlorobenzeneIsopropylbenzene (Cumene)2-Hexanonen-Propylbenzene1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Styrenep-Isopropyltoluene (p-Cymene)4-Methyl-2-pentanon (MIBK)Acetone1,2,3-TrichloropropaneChloroform1 600 600 500 20 6 70 4,000 70 70 70 20 200 6 70 40 70 400 400 70 25 100 6,000 0.005 70
5,000 260,000 84,500 85,500 20,000 6,000 70,000 4,000,000 6,900 8,500 15,000 20,000 61,500 6,000 25,000 40,000 30,000 28,500 25,000 70,000 11,700 100,000 6,000,000 NE 70,000
8/8/2014 26,000 41,000 3,400 17,800 15,000 910 480 J 3900 J <54 <84 <500 <76 <79 <46 120 J <5,000 350 J 2,600 590 NA <120 <1,500 <50,000 NA NA
8/7/2015
5/7/2018
10/5/2018
02/28/2019 25,200 40,100 4,290 22,360 2,100 1,090 376 2,770 <125 <125 <125 <125 <125 <125 213 <1,250 <125 4,390 <125 76.1J NA NA NA NA NA
10/30/2019
8/8/2014 800 5,300 930 5,100 540 780 J <36 3,300 40 J <17 <100 110 100 110 24 J <1,000 70 J 670 150 NA <25 <290 <10,000 NA NA
8/7/2015 1,900 13,100 3,790 19,100 785 1,230 27.4 4,580 <20 17.8 40.7 <5.0 <5.0 <5.0 142 1,570 432 2,820 755 NA <5.0 <4.0 940 NA NA
5/7/2018 800 9,300 3,400 18,600 320 600 <45 1,100 <38 <32 <30 <42 <42 <38 130 <380 370 2,900 820 NA <38 <370 <2,400 NA NA
10/5/2018 1,000 10,000 3,600 18,700 420 1,000 <50 710 100 20 J <50 <50 <50 <50 160 340 J 430 3,400 870 NA <50 170 <5,000 NA NA
02/28/2019 555 7,460 2,810 15,000 90.9 969 <25 364 <25 <25 <25 <25 <25 <25 127 <250 <25 2,980 <25 <25 NA NA NA NA NA
10/30/2019 450 4,110 2,470 13,000 173 1,090 <16.7 493 <17.6 <12.3 <12.5 <12.0 <12.5 <12.4 134 161J 430 3,290 808 <12.8 NA NA NA <13.6 70.4
1/28/2015 24 27 B 5.8 19.8 <0.090 <0.12 <0.18 <2.4 0.20 J 0.16 J NA <0.076 <0.079 <0.046 0.71 NA 1.1 1.0 0.91 NA 0.64 <1.5 NA NA NA
8/7/2015 54.9 71.8 17.2 60.0 <0.5 <2.0 <0.5 38.2 <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 2.34 <0.4 5.03 4.84 5.32 NA <0.5 <0.4 <2.0 NA NA
5/7/2018 11 8.4 4.4 18.1 <0.090 <0.12 <0.18 <2.4 <0.15 0.19 <0.12 <0.17 <0.17 <0.15 0.66 <1.5 0.73 1.3 2.5 NA <0.15 <1.5 <9.7 NA NA
10/5/2018 18 19 5.2 25.4 <0.50 <0.50 <0.50 4.5 J 0.32 J 0.15 J <0.50 <0.50 <0.50 1.1 0.67 <5.0 0.81 3.1 3.1 NA <0.50 4.5 J <50 NA NA
02/28/2019 8.3 8.5 3.2 14.4 <0.50 <2.0 <0.50 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.64 <5.0 <0.05 2.0 3.0 <0.50 NA NA NA NA NA
10/30/2019 1.1 0.99 <0.24 <0.50 <0.44 <0.66 <0.33 <3.6 <0.35 <0.25 <0.25 <0.24 <0.25 <0.25 <0.24 <0.60 <0.24 <0.19 <0.23 <0.26 NA NA NA <0.27 <0.35
1/28/2015 3,800 27,000 B 2,100 10,900 <1.8 570 <3.6 230 38 8.4 J NA <1.5 <1.6 <0.92 77 NA 240 1,800 460 NA 5.2 J 95 J NA NA NA
8/7/2015 1,310 6,590 1,190 6,700 <5.0 422 <5.0 277 <20 14.4 34.5 <5.0 <5.0 <5.0 64.4 <4.0 225 1,620 440 NA <5.0 <4.0 161 NA NA
5/7/2018 1,500 12,000 1,300 6,500 <22 360 <45 <590 <38 <32 <30 <42 <42 <38 42 <380 130 980 250 NA <38 <370 <2400 NA NA
10/5/2018 1,600 12,000 1,200 6,800 <100 400 <100 <1,000 <100 <100 <100 <100 <100 <100 46 J <1,000 140 1,200 310 NA <100 <1,000 <10,000 NA NA
02/28/2019 2,120 19,400 1,970 10,530 <50 617 <50 <500 <50 <50 <50 <50 <50 <50 70.8 <500 <50 1,730 <50 49.2J NA NA NA NA NA
10/30/2019 516 5,850 1,090 6,130 <22.2 371 <16.7 N/A <17.6 <12.3 <12.5 <12.0 <12.5 <12.4 59.3 N/A 182 1,480 383 <12.8 NA NA NA <13.6 96.6
10/5/2018
02/28/2019 34,500 41,700 3,060 6,600 96,500 960J 1,240 <2,500 <250 <250 <250 <250 <250 <250 <250 <2,500 <250 3,000 <250 <250 NA NA NA NA NA
10/30/2019
02/28/2019 3.2 136 126 522 <1.0 26.6 <1.0 <10.0 13.7 <1.0 <1.0 <1.0 <1.0 <1.0 34.4 <10.0 <1.0 221 93.5 1.3 NA NA NA NA NA
10/30/2019 55.4 829 502 2,150 <2.2 126 <1.7 <18.0 12.2 11.9 1.8J <1.2 <1.2 <1.2 75.4 27.3 92.6 492 174 <1.3 NA NA NA 6.3 4.6
5/7/2018
10/5/2018
2/28/2019
10/30/2019
Notes:
"<" = Not Detected at or above the laboratory detection limit J = Estimated value below method reporting limit
Concentrations are reported in micrograms per liter (ug/l) or parts per billion (ppb)B = Analyte is found in associated blank as well as in the sample
Concentrations in bold print equal or exceed the 15A 2L NCAC Groundwater Standard (2L Standard).NA = Not analyzed
LNAPL = Light Non-Aqueous Phase Liquid NE = Not established
GCL = Gross Contamination Level
Well ID Sample Date
GCL (ug/l)
Concentrations in ug/L
WSW-1
MW-6
NOT SAMPLED - INOPERABLE
NOT SAMPLED - INOPERABLE
NOT SAMPLED - INOPERABLE
2L Standard (ug/l)
MW-1
MW-2
MW-3
MW-4
MW-5
NOT SAMPLED - LNAPL MEASURED - 0.06'
NOT SAMPLED - INOPERABLE
NOT SAMPLED - LNAPL MEASURED 6.51'
NOT SAMPLED - LNAPL MEASURED - 0.02'
NOT SAMPLED - LNAPL MEASURED 1.70'
NOT SAMPLED - LNAPL MEASURED - 0.01'
NOT SAMPLED - LNAPL MEASURED - 0.50'

FIGURES
SITE
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg
REFERENCE: USGS 7.5-MINUTE MAP, TAYLORSVILLE, NORTH
CAROLINA. DATED 2016
LATITUDE:ƒ1257+
LONGITUDE:ƒ:(67
LB EG 01/09/20 4
LBEG01/10/20SLP4016704S LUMBER/NCDEQ INCIDENT #40167
WSW-1
MW-1
SUSPECT
UST
SUSPECT UST
ASPHALT
ASPHALT
NC HIGHWAY 16PARK
SITE
OUT OF
SERVICE AST
MW-4
MW-3
MW-2
MW-5
MW-6
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
ASSOCIATES OF NORTH CAROLINA, P.C.
C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg
EXPLANATION
WATER SUPPLY WELL LOCATION
MONITORING WELL LOCATION
PROPOSED
AREA OFGPR SURVEY
WSW-1
MW-1
SUSPECT
UST
SUSPECT UST
ASPHALT
ASPHALT
NC HIGHWAY 16PARK
SITE
OUT OF
SERVICE AST
MW-4
MW-3
MW-2
MW-5
MW-6
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
ASSOCIATES OF NORTH CAROLINA, P.C.
C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg
EXPLANATION
WATER SUPPLY WELL LOCATIONMONITORING WELL LOCATION
GROUNDWATER ELEVATION (IN FEET)
GROUNDWATER CONTOUR LINEGROUNDWATER FLOW DIRECTION64.07
69.41
69.35
65.34
69.39 69.58
68.43 NOTE:
1.GROUNDWATER ELEVATIONSMEASURED ON 10/30/19.2.DASHED LINES INDICATE AREAS OFLESS CERTAINTY.3.MW-1 AND MW-5 CORRECTED FORPRESENCE OF LNAPL.66.068.0
69.067.0
WSW-1
MW-1
ABANDONED
UST
ABANDONED UST
ASPHALT
ASPHALT
NC HIGHWAY 16PARK
SITE
OUT OF
SERVICE AST
MW-4
MW-3
MW-2
MW-5
MW-6
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
ASSOCIATES OF NORTH CAROLINA, P.C.
C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg
LNAPL
450
55.4
1.1
LNAPL
516
5,000 ug/L
EXPLANATION
WATER SUPPLY WELL LOCATIONMONITORING WELL LOCATION
BENZENE CONCENTRATION IN
MICROGRAMS PER LITERBENZENE ISOCONCENTRATIONCONTOUR LINE<0.12NOTE:1.GROUNDWATER SAMPLESCOLLECTED ON 10/30/19.2.DASHED LINES INDICATE AREAS OFLESS CERTAINTY.
LIGHT NON-AQUEOUS PHASE LIQUID
LNAPL
1 ug/L
1,000 u
g
/
L
100 ug/L
WSW-1
MW-1
ABANDONED
UST
ABANDONED UST
ASPHALT
ASPHALT
NC HIGHWAY 16PARK
SITE
OUT OF
SERVICE AST
MW-4
MW-3
MW-2
MW-5
MW-6
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
ASSOCIATES OF NORTH CAROLINA, P.C.
C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg
EXPLANATION
WATER SUPPLY WELL LOCATIONMONITORING WELL LOCATION
NOTE:
1.GROUNDWATER SAMPLES COLLECTED ON10/30/19.
LNAPL = LIGHT NON-AQUEOUS PHASE LIQUID2.

APPENDIX A

FIELD NOTES

APPENDIX B

LABORATORY ANALYTICAL REPORTS
#=CL#
November 07, 2019
LIMS USE: FR - ERIN GREENE
LIMS OBJECT ID: 92451820
92451820
Project:
Pace Project No.:
RE:
Erin Greene
ATC Group
7606 Whitehall Executive Cente
Suite 800
Charlotte, NC 28273
Childers & Sons
Dear Erin Greene:
Enclosed are the analytical results for sample(s) received by the laboratory on October 31, 2019.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Taylor Ezell
[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 15
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92451820
Childers & Sons
Charlotte Certification IDs
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 15
#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92451820
Childers & Sons
Lab ID Sample ID Matrix Date Collected Date Received
92451820001 FB-1 Water 10/30/19 13:00 10/31/19 07:48
92451820002 MW-2 Water 10/30/19 14:05 10/31/19 07:48
92451820003 MW-3 Water 10/30/19 13:28 10/31/19 07:48
92451820004 MW-4 Water 10/30/19 14:30 10/31/19 07:48
92451820005 MW-6 Water 10/30/19 13:43 10/31/19 07:48
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 15
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92451820
Childers & Sons
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92451820001 FB-1 SM 6200B 10 PASI-CCL
92451820002 MW-2 SM 6200B 10 PASI-CCL
92451820003 MW-3 SM 6200B 10 PASI-CCL
92451820004 MW-4 SM 6200B 10 PASI-CCL
92451820005 MW-6 SM 6200B 10 PASI-CCL
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 4 of 15
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons
Sample:FB-1 Lab ID:92451820001 Collected:10/30/19 13:00 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene <0.24 ug/L 11/04/19 22:37 71-43-20.50 0.24 1
1,2-Dibromoethane (EDB)<0.23 ug/L 11/04/19 22:37 106-93-40.50 0.23 1
Diisopropyl ether <0.33 ug/L 11/04/19 22:37 108-20-30.50 0.33 1
Ethylbenzene <0.24 ug/L 11/04/19 22:37 100-41-40.50 0.24 1
Methyl-tert-butyl ether <0.44 ug/L 11/04/19 22:37 1634-04-40.50 0.44 1
Toluene <0.23 ug/L 11/04/19 22:37 108-88-30.50 0.23 1
Xylene (Total)<0.50 ug/L 11/04/19 22:37 1330-20-71.0 0.50 1
Surrogates
1,2-Dichloroethane-d4 (S)94 %11/04/19 22:37 17060-07-070-130 1
4-Bromofluorobenzene (S)98 %11/04/19 22:37 460-00-470-130 1
Toluene-d8 (S)92 %11/04/19 22:37 2037-26-570-130 1
Sample:MW-2 Lab ID:92451820002 Collected:10/30/19 14:05 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 450 ug/L 11/06/19 15:45 71-43-225.0 12.0 50
1,2-Dibromoethane (EDB)<11.6 ug/L 11/06/19 15:45 106-93-425.0 11.6 50
Diisopropyl ether <16.7 ug/L 11/06/19 15:45 108-20-325.0 16.7 50
Ethylbenzene 2470 ug/L 11/06/19 15:45 100-41-425.0 12.0 50
Methyl-tert-butyl ether 173 ug/L 11/06/19 15:45 1634-04-425.0 22.2 50
Toluene 4110 ug/L 11/06/19 15:45 108-88-325.0 11.4 50
Xylene (Total)13000 ug/L 11/06/19 15:45 1330-20-750.0 25.0 50
Surrogates
1,2-Dichloroethane-d4 (S)96 %11/06/19 15:45 17060-07-070-130 50
4-Bromofluorobenzene (S)91 %11/06/19 15:45 460-00-470-130 50
Toluene-d8 (S)104 %11/06/19 15:45 2037-26-570-130 50
Sample:MW-3 Lab ID:92451820003 Collected:10/30/19 13:28 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 1.1 ug/L 11/05/19 02:47 71-43-20.50 0.24 1
1,2-Dibromoethane (EDB)<0.23 ug/L 11/05/19 02:47 106-93-40.50 0.23 1
Diisopropyl ether <0.33 ug/L 11/05/19 02:47 108-20-30.50 0.33 1
Ethylbenzene <0.24 ug/L 11/05/19 02:47 100-41-40.50 0.24 1
Methyl-tert-butyl ether <0.44 ug/L 11/05/19 02:47 1634-04-40.50 0.44 1
Toluene 0.99 ug/L 11/05/19 02:47 108-88-30.50 0.23 1
Xylene (Total)<0.50 ug/L 11/05/19 02:47 1330-20-71.0 0.50 1
Surrogates
1,2-Dichloroethane-d4 (S)92 %11/05/19 02:47 17060-07-070-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/07/2019 03:21 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 15
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons
Sample:MW-3 Lab ID:92451820003 Collected:10/30/19 13:28 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Surrogates
4-Bromofluorobenzene (S)92 %11/05/19 02:47 460-00-470-130 1
Toluene-d8 (S)97 %11/05/19 02:47 2037-26-570-130 1
Sample:MW-4 Lab ID:92451820004 Collected:10/30/19 14:30 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 516 ug/L 11/06/19 16:03 71-43-225.0 12.0 50
1,2-Dibromoethane (EDB)<11.6 ug/L 11/06/19 16:03 106-93-425.0 11.6 50
Diisopropyl ether <16.7 ug/L 11/06/19 16:03 108-20-325.0 16.7 50
Ethylbenzene 1090 ug/L 11/06/19 16:03 100-41-425.0 12.0 50
Methyl-tert-butyl ether <22.2 ug/L 11/06/19 16:03 1634-04-425.0 22.2 50
Toluene 5850 ug/L 11/06/19 16:03 108-88-3 M125.0 11.4 50
Xylene (Total)6130 ug/L 11/06/19 16:03 1330-20-750.0 25.0 50
Surrogates
1,2-Dichloroethane-d4 (S)104 %11/06/19 16:03 17060-07-070-130 50
4-Bromofluorobenzene (S)111 %11/06/19 16:03 460-00-470-130 50
Toluene-d8 (S)98 %11/06/19 16:03 2037-26-570-130 50
Sample:MW-6 Lab ID:92451820005 Collected:10/30/19 13:43 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 55.4 ug/L 11/06/19 15:09 71-43-22.5 1.2 5
1,2-Dibromoethane (EDB)<1.2 ug/L 11/06/19 15:09 106-93-42.5 1.2 5
Diisopropyl ether <1.7 ug/L 11/06/19 15:09 108-20-32.5 1.7 5
Ethylbenzene 502 ug/L 11/06/19 15:09 100-41-42.5 1.2 5
Methyl-tert-butyl ether <2.2 ug/L 11/06/19 15:09 1634-04-42.5 2.2 5
Toluene 829 ug/L 11/06/19 15:09 108-88-32.5 1.1 5
Xylene (Total)2150 ug/L 11/06/19 15:09 1330-20-75.0 2.5 5
Surrogates
1,2-Dichloroethane-d4 (S)91 %11/06/19 15:09 17060-07-070-130 5
4-Bromofluorobenzene (S)97 %11/06/19 15:09 460-00-470-130 5
Toluene-d8 (S)99 %11/06/19 15:09 2037-26-570-130 5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/07/2019 03:21 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 15
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons
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:
507450
SM 6200B
SM 6200B
6200B MSV
Associated Lab Samples:92451820001, 92451820003
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:2724398
Associated Lab Samples:92451820001, 92451820003
Matrix:Water
AnalyzedMDL
1,2-Dibromoethane (EDB)ug/L <0.23 0.50 11/04/19 22:190.23
Benzene ug/L <0.24 0.50 11/04/19 22:190.24
Diisopropyl ether ug/L <0.33 0.50 11/04/19 22:190.33
Ethylbenzene ug/L <0.24 0.50 11/04/19 22:190.24
Methyl-tert-butyl ether ug/L <0.44 0.50 11/04/19 22:190.44
Toluene ug/L <0.23 0.50 11/04/19 22:190.23
Xylene (Total)ug/L <0.50 1.0 11/04/19 22:190.50
1,2-Dichloroethane-d4 (S)%93 70-130 11/04/19 22:19
4-Bromofluorobenzene (S)%96 70-130 11/04/19 22:19
Toluene-d8 (S)%111 70-130 11/04/19 22:19
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
2724399LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dibromoethane (EDB)ug/L 54.150 108 60-140
Benzene ug/L 52.650 105 60-140
Diisopropyl ether ug/L 50.150 100 60-140
Ethylbenzene ug/L 50.450 101 60-140
Methyl-tert-butyl ether ug/L 51.550 103 60-140
Toluene ug/L 50.650 101 60-140
Xylene (Total)ug/L 156150 104 60-140
1,2-Dichloroethane-d4 (S)%94 70-130
4-Bromofluorobenzene (S)%100 70-130
Toluene-d8 (S)%105 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
2725355MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451227001
2725356
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,2-Dibromoethane (EDB)ug/L 20 111 60-14090 21 3020ND22.2 18.1
Benzene ug/L 20 120 60-140104 14 3020ND23.9 20.8
Diisopropyl ether ug/L 20 99 60-140116 16 3020ND19.8 23.2
Ethylbenzene ug/L 20 106 60-140102 4 3020ND21.2 20.3
Methyl-tert-butyl ether ug/L 20 113 60-140122 8 3020ND22.6 24.4
Toluene ug/L 20 101 60-140105 5 3020ND20.1 21.1
Xylene (Total)ug/L 9 3062.4 56.9
1,2-Dichloroethane-d4 (S)%90 70-13096
4-Bromofluorobenzene (S)%87 70-13099
REPORT OF LABORATORY ANALYSIS
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Page 7 of 15
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons
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.
2725355MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451227001
2725356
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Toluene-d8 (S)%92 70-130101
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/07/2019 03:21 PM
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#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons
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:
507868
SM 6200B
SM 6200B
6200B MSV
Associated Lab Samples:92451820002, 92451820004, 92451820005
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:2726324
Associated Lab Samples:92451820002, 92451820004, 92451820005
Matrix:Water
AnalyzedMDL
1,2-Dibromoethane (EDB)ug/L <0.23 0.50 11/06/19 11:170.23
Benzene ug/L <0.24 0.50 11/06/19 11:170.24
Diisopropyl ether ug/L <0.33 0.50 11/06/19 11:170.33
Ethylbenzene ug/L <0.24 0.50 11/06/19 11:170.24
Methyl-tert-butyl ether ug/L <0.44 0.50 11/06/19 11:170.44
Toluene ug/L <0.23 0.50 11/06/19 11:170.23
Xylene (Total)ug/L <0.50 1.0 11/06/19 11:170.50
1,2-Dichloroethane-d4 (S)%94 70-130 11/06/19 11:17
4-Bromofluorobenzene (S)%99 70-130 11/06/19 11:17
Toluene-d8 (S)%101 70-130 11/06/19 11:17
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
2726325LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dibromoethane (EDB)ug/L 52.850 106 60-140
Benzene ug/L 51.650 103 60-140
Diisopropyl ether ug/L 56.150 112 60-140
Ethylbenzene ug/L 50.550 101 60-140
Methyl-tert-butyl ether ug/L 59.150 118 60-140
Toluene ug/L 57.450 115 60-140
Xylene (Total)ug/L 154150 103 60-140
1,2-Dichloroethane-d4 (S)%95 70-130
4-Bromofluorobenzene (S)%100 70-130
Toluene-d8 (S)%113 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
2726326MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451820004
2726327
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,2-Dibromoethane (EDB)ug/L 1000 111 60-140109 2 301000<11.6 1110 1090
Benzene ug/L 1000 118 60-140109 5 30100051616901610
Diisopropyl ether ug/L 1000 112 60-140103 9 301000<16.7 1120 1030
Ethylbenzene ug/L 1000 106 60-14096 5 301000109021502050
Methyl-tert-butyl ether ug/L 1000 109 60-140108 1 301000<22.2 1090 1080
Toluene ug/L M110009760-14055 6 301000585068206400
Xylene (Total)ug/L 3000 101 60-14085 5 303000613091508660
1,2-Dichloroethane-d4 (S)%93 70-13098
4-Bromofluorobenzene (S)%105 70-13098
REPORT OF LABORATORY ANALYSIS
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Page 9 of 15
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons
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.
2726326MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451820004
2726327
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Toluene-d8 (S)%99 70-13097
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/07/2019 03:21 PM
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Page 10 of 15
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92451820
Childers & Sons
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.
LABORATORIES
Pace Analytical Services - CharlottePASI-C
ANALYTE QUALIFIERS
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
REPORT OF LABORATORY ANALYSIS
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Page 11 of 15
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92451820
Childers & Sons
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92451820001 507450FB-1 SM 6200B
92451820002 507868MW-2 SM 6200B
92451820003 507450MW-3 SM 6200B
92451820004 507868MW-4 SM 6200B
92451820005 507868MW-6 SM 6200B
REPORT OF LABORATORY ANALYSIS
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Page 12 of 15
Page 13 of 15
Page 14 of 15
Page 15 of 15
#=CL#
November 18, 2019
LIMS USE: FR - ERIN GREENE
LIMS OBJECT ID: 92451820
92451820
Project:
Pace Project No.:
RE:
Erin Greene
ATC Group
7606 Whitehall Executive Cente
Suite 800
Charlotte, NC 28273
Childers & Sons-Revised Report
Dear Erin Greene:
Enclosed are the analytical results for sample(s) received by the laboratory on October 31, 2019.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
Report revised to add compounds.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Taylor Ezell
[e-mail]
Project Manager
[phone]
Enclosures
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
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Page 1 of 27
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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
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#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Lab ID Sample ID Matrix Date Collected Date Received
92451820001 FB-1 Water 10/30/19 13:00 10/31/19 07:48
92451820002 MW-2 Water 10/30/19 14:05 10/31/19 07:48
92451820003 MW-3 Water 10/30/19 13:28 10/31/19 07:48
92451820004 MW-4 Water 10/30/19 14:30 10/31/19 07:48
92451820005 MW-6 Water 10/30/19 13:43 10/31/19 07:48
REPORT OF LABORATORY ANALYSIS
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Page 3 of 27
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92451820001 FB-1 SM 6200B 63 PASI-CCL
92451820002 MW-2 SM 6200B 63 PASI-CCL
92451820003 MW-3 SM 6200B 63 PASI-CCL
92451820004 MW-4 SM 6200B 61 PASI-CCL
92451820005 MW-6 SM 6200B 63 PASI-CCL
REPORT OF LABORATORY ANALYSIS
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#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:FB-1 Lab ID:92451820001 Collected:10/30/19 13:00 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene <0.24 ug/L 11/04/19 22:37 71-43-20.50 0.24 1
Bromobenzene <0.22 ug/L 11/04/19 22:37 108-86-10.50 0.22 1
Bromochloromethane <0.26 ug/L 11/04/19 22:37 74-97-50.50 0.26 1
Bromodichloromethane <0.18 ug/L 11/04/19 22:37 75-27-40.50 0.18 1
Bromoform <0.40 ug/L 11/04/19 22:37 75-25-20.50 0.40 1
Bromomethane <1.7 ug/L 11/04/19 22:37 74-83-95.0 1.7 1
2-Butanone (MEK)<3.6 ug/L 11/04/19 22:37 78-93-35.0 3.6 1
n-Butylbenzene <0.35 ug/L 11/04/19 22:37 104-51-80.50 0.35 1
sec-Butylbenzene <0.25 ug/L 11/04/19 22:37 135-98-80.50 0.25 1
tert-Butylbenzene <0.25 ug/L 11/04/19 22:37 98-06-60.50 0.25 1
Carbon tetrachloride <0.23 ug/L 11/04/19 22:37 56-23-50.50 0.23 1
Chlorobenzene <0.22 ug/L 11/04/19 22:37 108-90-70.50 0.22 1
Chloroethane <0.58 ug/L 11/04/19 22:37 75-00-31.0 0.58 1
Chloroform <0.35 ug/L 11/04/19 22:37 67-66-30.50 0.35 1
Chloromethane <0.42 ug/L 11/04/19 22:37 74-87-31.0 0.42 1
2-Chlorotoluene <0.21 ug/L 11/04/19 22:37 95-49-80.50 0.21 1
4-Chlorotoluene <0.21 ug/L 11/04/19 22:37 106-43-40.50 0.21 1
1,2-Dibromo-3-chloropropane <0.38 ug/L 11/04/19 22:37 96-12-81.0 0.38 1
Dibromochloromethane <0.40 ug/L 11/04/19 22:37 124-48-10.50 0.40 1
1,2-Dibromoethane (EDB)<0.23 ug/L 11/04/19 22:37 106-93-40.50 0.23 1
Dibromomethane <0.31 ug/L 11/04/19 22:37 74-95-30.50 0.31 1
1,2-Dichlorobenzene <0.24 ug/L 11/04/19 22:37 95-50-10.50 0.24 1
1,3-Dichlorobenzene <0.25 ug/L 11/04/19 22:37 541-73-10.50 0.25 1
1,4-Dichlorobenzene <0.25 ug/L 11/04/19 22:37 106-46-70.50 0.25 1
Dichlorodifluoromethane <0.28 ug/L 11/04/19 22:37 75-71-80.50 0.28 1
1,1-Dichloroethane <0.24 ug/L 11/04/19 22:37 75-34-30.50 0.24 1
1,2-Dichloroethane <0.26 ug/L 11/04/19 22:37 107-06-20.50 0.26 1
1,1-Dichloroethene <0.22 ug/L 11/04/19 22:37 75-35-40.50 0.22 1
cis-1,2-Dichloroethene <0.21 ug/L 11/04/19 22:37 156-59-20.50 0.21 1
trans-1,2-Dichloroethene <0.26 ug/L 11/04/19 22:37 156-60-50.50 0.26 1
1,2-Dichloropropane <0.18 ug/L 11/04/19 22:37 78-87-50.50 0.18 1
1,3-Dichloropropane <0.34 ug/L 11/04/19 22:37 142-28-90.50 0.34 1
2,2-Dichloropropane <0.28 ug/L 11/04/19 22:37 594-20-70.50 0.28 1
1,1-Dichloropropene <0.35 ug/L 11/04/19 22:37 563-58-60.50 0.35 1
cis-1,3-Dichloropropene <0.36 ug/L 11/04/19 22:37 10061-01-50.50 0.36 1
trans-1,3-Dichloropropene <0.39 ug/L 11/04/19 22:37 10061-02-60.50 0.39 1
Diisopropyl ether <0.33 ug/L 11/04/19 22:37 108-20-30.50 0.33 1
Hexachloro-1,3-butadiene <1.2 ug/L 11/04/19 22:37 87-68-32.0 1.2 1
2-Hexanone <0.60 ug/L 11/04/19 22:37 591-78-65.0 0.60 1
Isopropylbenzene (Cumene)<0.24 ug/L 11/04/19 22:37 98-82-80.50 0.24 1
Methylene Chloride <1.5 ug/L 11/04/19 22:37 75-09-22.0 1.5 1
Methyl-tert-butyl ether <0.44 ug/L 11/04/19 22:37 1634-04-40.50 0.44 1
Naphthalene <0.66 ug/L 11/04/19 22:37 91-20-32.0 0.66 1
n-Propylbenzene <0.24 ug/L 11/04/19 22:37 103-65-10.50 0.24 1
Styrene <0.26 ug/L 11/04/19 22:37 100-42-50.50 0.26 1
1,1,1,2-Tetrachloroethane <0.42 ug/L 11/04/19 22:37 630-20-60.50 0.42 1
REPORT OF LABORATORY ANALYSIS
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#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:FB-1 Lab ID:92451820001 Collected:10/30/19 13:00 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
1,1,2,2-Tetrachloroethane <0.19 ug/L 11/04/19 22:37 79-34-50.50 0.19 1
Tetrachloroethene <0.23 ug/L 11/04/19 22:37 127-18-40.50 0.23 1
Toluene <0.23 ug/L 11/04/19 22:37 108-88-30.50 0.23 1
1,2,3-Trichlorobenzene <0.78 ug/L 11/04/19 22:37 87-61-62.0 0.78 1
1,2,4-Trichlorobenzene <0.44 ug/L 11/04/19 22:37 120-82-12.0 0.44 1
1,1,1-Trichloroethane <0.28 ug/L 11/04/19 22:37 71-55-60.50 0.28 1
1,1,2-Trichloroethane <0.23 ug/L 11/04/19 22:37 79-00-50.50 0.23 1
Trichloroethene <0.23 ug/L 11/04/19 22:37 79-01-60.50 0.23 1
Trichlorofluoromethane <0.34 ug/L 11/04/19 22:37 75-69-41.0 0.34 1
1,2,3-Trichloropropane <0.27 ug/L 11/04/19 22:37 96-18-40.50 0.27 1
1,2,4-Trimethylbenzene <0.19 ug/L 11/04/19 22:37 95-63-60.50 0.19 1
1,3,5-Trimethylbenzene <0.23 ug/L 11/04/19 22:37 108-67-80.50 0.23 1
Vinyl chloride <0.41 ug/L 11/04/19 22:37 75-01-41.0 0.41 1
Xylene (Total)<0.50 ug/L 11/04/19 22:37 1330-20-71.0 0.50 1
Surrogates
1,2-Dichloroethane-d4 (S)94 %11/04/19 22:37 17060-07-070-130 1
4-Bromofluorobenzene (S)98 %11/04/19 22:37 460-00-470-130 1
Toluene-d8 (S)92 %11/04/19 22:37 2037-26-570-130 1
Sample:MW-2 Lab ID:92451820002 Collected:10/30/19 14:05 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 450 ug/L 11/06/19 15:45 71-43-225.0 12.0 50
Bromobenzene <10.8 ug/L 11/06/19 15:45 108-86-125.0 10.8 50
Bromochloromethane <12.9 ug/L 11/06/19 15:45 74-97-525.0 12.9 50
Bromodichloromethane <9.2 ug/L 11/06/19 15:45 75-27-425.0 9.2 50
Bromoform <20.2 ug/L 11/06/19 15:45 75-25-225.0 20.2 50
Bromomethane <86.0 ug/L 11/06/19 15:45 74-83-925086.0 50
2-Butanone (MEK)493 ug/L 11/06/19 15:45 78-93-325018050
n-Butylbenzene <17.6 ug/L 11/06/19 15:45 104-51-825.0 17.6 50
sec-Butylbenzene <12.3 ug/L 11/06/19 15:45 135-98-825.0 12.3 50
tert-Butylbenzene <12.5 ug/L 11/06/19 15:45 98-06-625.0 12.5 50
Carbon tetrachloride <11.6 ug/L 11/06/19 15:45 56-23-525.0 11.6 50
Chlorobenzene <11.2 ug/L 11/06/19 15:45 108-90-725.0 11.2 50
Chloroethane <29.2 ug/L 11/06/19 15:45 75-00-350.0 29.2 50
Chloroform 70.4 ug/L 11/06/19 15:45 67-66-325.0 17.6 50
Chloromethane <20.8 ug/L 11/06/19 15:45 74-87-350.0 20.8 50
2-Chlorotoluene <10.4 ug/L 11/06/19 15:45 95-49-825.0 10.4 50
4-Chlorotoluene <10.3 ug/L 11/06/19 15:45 106-43-425.0 10.3 50
1,2-Dibromo-3-chloropropane <19.2 ug/L 11/06/19 15:45 96-12-850.0 19.2 50
Dibromochloromethane <20.1 ug/L 11/06/19 15:45 124-48-125.0 20.1 50
1,2-Dibromoethane (EDB)<11.6 ug/L 11/06/19 15:45 106-93-425.0 11.6 50
REPORT OF LABORATORY ANALYSIS
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Page 6 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:MW-2 Lab ID:92451820002 Collected:10/30/19 14:05 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Dibromomethane <15.5 ug/L 11/06/19 15:45 74-95-325.0 15.5 50
1,2-Dichlorobenzene <12.0 ug/L 11/06/19 15:45 95-50-125.0 12.0 50
1,3-Dichlorobenzene <12.5 ug/L 11/06/19 15:45 541-73-125.0 12.5 50
1,4-Dichlorobenzene <12.4 ug/L 11/06/19 15:45 106-46-725.0 12.4 50
Dichlorodifluoromethane <14.2 ug/L 11/06/19 15:45 75-71-825.0 14.2 50
1,1-Dichloroethane <12.2 ug/L 11/06/19 15:45 75-34-325.0 12.2 50
1,2-Dichloroethane <13.2 ug/L 11/06/19 15:45 107-06-225.0 13.2 50
1,1-Dichloroethene <10.9 ug/L 11/06/19 15:45 75-35-425.0 10.9 50
cis-1,2-Dichloroethene <10.4 ug/L 11/06/19 15:45 156-59-225.0 10.4 50
trans-1,2-Dichloroethene <12.8 ug/L 11/06/19 15:45 156-60-525.0 12.8 50
1,2-Dichloropropane <9.2 ug/L 11/06/19 15:45 78-87-525.0 9.2 50
1,3-Dichloropropane <17.0 ug/L 11/06/19 15:45 142-28-925.0 17.0 50
2,2-Dichloropropane <14.0 ug/L 11/06/19 15:45 594-20-725.0 14.0 50
1,1-Dichloropropene <17.4 ug/L 11/06/19 15:45 563-58-625.0 17.4 50
cis-1,3-Dichloropropene <17.8 ug/L 11/06/19 15:45 10061-01-525.0 17.8 50
trans-1,3-Dichloropropene <19.7 ug/L 11/06/19 15:45 10061-02-625.0 19.7 50
Diisopropyl ether <16.7 ug/L 11/06/19 15:45 108-20-325.0 16.7 50
Hexachloro-1,3-butadiene <60.0 ug/L 11/06/19 15:45 87-68-310060.0 50
2-Hexanone 161J ug/L 11/06/19 15:45 591-78-625030.2 50
Isopropylbenzene (Cumene)134 ug/L 11/06/19 15:45 98-82-825.0 11.9 50
Methylene Chloride <75.0 ug/L 11/06/19 15:45 75-09-210075.0 50
Methyl-tert-butyl ether 173 ug/L 11/06/19 15:45 1634-04-425.0 22.2 50
Naphthalene 1090 ug/L 11/06/19 15:45 91-20-310033.0 50
n-Propylbenzene 430 ug/L 11/06/19 15:45 103-65-125.0 12.0 50
Styrene <12.8 ug/L 11/06/19 15:45 100-42-525.0 12.8 50
1,1,1,2-Tetrachloroethane <21.1 ug/L 11/06/19 15:45 630-20-625.0 21.1 50
1,1,2,2-Tetrachloroethane <9.6 ug/L 11/06/19 15:45 79-34-525.0 9.6 50
Tetrachloroethene <11.6 ug/L 11/06/19 15:45 127-18-425.0 11.6 50
Toluene 4110 ug/L 11/06/19 15:45 108-88-325.0 11.4 50
1,2,3-Trichlorobenzene <39.0 ug/L 11/06/19 15:45 87-61-610039.0 50
1,2,4-Trichlorobenzene <21.8 ug/L 11/06/19 15:45 120-82-110021.8 50
1,1,1-Trichloroethane <13.9 ug/L 11/06/19 15:45 71-55-625.0 13.9 50
1,1,2-Trichloroethane <11.6 ug/L 11/06/19 15:45 79-00-525.0 11.6 50
Trichloroethene <11.6 ug/L 11/06/19 15:45 79-01-625.0 11.6 50
Trichlorofluoromethane <16.8 ug/L 11/06/19 15:45 75-69-450.0 16.8 50
1,2,3-Trichloropropane <13.6 ug/L 11/06/19 15:45 96-18-425.0 13.6 50
1,2,4-Trimethylbenzene 3290 ug/L 11/06/19 15:45 95-63-625.0 9.6 50
1,3,5-Trimethylbenzene 808 ug/L 11/06/19 15:45 108-67-825.0 11.4 50
Vinyl chloride <20.4 ug/L 11/06/19 15:45 75-01-450.0 20.4 50
Xylene (Total)13000 ug/L 11/06/19 15:45 1330-20-750.0 25.0 50
Surrogates
1,2-Dichloroethane-d4 (S)96 %11/06/19 15:45 17060-07-070-130 50
4-Bromofluorobenzene (S)91 %11/06/19 15:45 460-00-470-130 50
Toluene-d8 (S)104 %11/06/19 15:45 2037-26-570-130 50
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:MW-3 Lab ID:92451820003 Collected:10/30/19 13:28 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 1.1 ug/L 11/05/19 02:47 71-43-20.50 0.24 1
Bromobenzene <0.22 ug/L 11/05/19 02:47 108-86-10.50 0.22 1
Bromochloromethane <0.26 ug/L 11/05/19 02:47 74-97-50.50 0.26 1
Bromodichloromethane <0.18 ug/L 11/05/19 02:47 75-27-40.50 0.18 1
Bromoform <0.40 ug/L 11/05/19 02:47 75-25-20.50 0.40 1
Bromomethane <1.7 ug/L 11/05/19 02:47 74-83-95.0 1.7 1
2-Butanone (MEK)<3.6 ug/L 11/05/19 02:47 78-93-35.0 3.6 1
n-Butylbenzene <0.35 ug/L 11/05/19 02:47 104-51-80.50 0.35 1
sec-Butylbenzene <0.25 ug/L 11/05/19 02:47 135-98-80.50 0.25 1
tert-Butylbenzene <0.25 ug/L 11/05/19 02:47 98-06-60.50 0.25 1
Carbon tetrachloride <0.23 ug/L 11/05/19 02:47 56-23-50.50 0.23 1
Chlorobenzene <0.22 ug/L 11/05/19 02:47 108-90-70.50 0.22 1
Chloroethane <0.58 ug/L 11/05/19 02:47 75-00-31.0 0.58 1
Chloroform <0.35 ug/L 11/05/19 02:47 67-66-30.50 0.35 1
Chloromethane <0.42 ug/L 11/05/19 02:47 74-87-31.0 0.42 1
2-Chlorotoluene <0.21 ug/L 11/05/19 02:47 95-49-80.50 0.21 1
4-Chlorotoluene <0.21 ug/L 11/05/19 02:47 106-43-40.50 0.21 1
1,2-Dibromo-3-chloropropane <0.38 ug/L 11/05/19 02:47 96-12-81.0 0.38 1
Dibromochloromethane <0.40 ug/L 11/05/19 02:47 124-48-10.50 0.40 1
1,2-Dibromoethane (EDB)<0.23 ug/L 11/05/19 02:47 106-93-40.50 0.23 1
Dibromomethane <0.31 ug/L 11/05/19 02:47 74-95-30.50 0.31 1
1,2-Dichlorobenzene <0.24 ug/L 11/05/19 02:47 95-50-10.50 0.24 1
1,3-Dichlorobenzene <0.25 ug/L 11/05/19 02:47 541-73-10.50 0.25 1
1,4-Dichlorobenzene <0.25 ug/L 11/05/19 02:47 106-46-70.50 0.25 1
Dichlorodifluoromethane <0.28 ug/L 11/05/19 02:47 75-71-80.50 0.28 1
1,1-Dichloroethane <0.24 ug/L 11/05/19 02:47 75-34-30.50 0.24 1
1,2-Dichloroethane <0.26 ug/L 11/05/19 02:47 107-06-20.50 0.26 1
1,1-Dichloroethene <0.22 ug/L 11/05/19 02:47 75-35-40.50 0.22 1
cis-1,2-Dichloroethene <0.21 ug/L 11/05/19 02:47 156-59-20.50 0.21 1
trans-1,2-Dichloroethene <0.26 ug/L 11/05/19 02:47 156-60-50.50 0.26 1
1,2-Dichloropropane <0.18 ug/L 11/05/19 02:47 78-87-50.50 0.18 1
1,3-Dichloropropane <0.34 ug/L 11/05/19 02:47 142-28-90.50 0.34 1
2,2-Dichloropropane <0.28 ug/L 11/05/19 02:47 594-20-70.50 0.28 1
1,1-Dichloropropene <0.35 ug/L 11/05/19 02:47 563-58-60.50 0.35 1
cis-1,3-Dichloropropene <0.36 ug/L 11/05/19 02:47 10061-01-50.50 0.36 1
trans-1,3-Dichloropropene <0.39 ug/L 11/05/19 02:47 10061-02-60.50 0.39 1
Diisopropyl ether <0.33 ug/L 11/05/19 02:47 108-20-30.50 0.33 1
Hexachloro-1,3-butadiene <1.2 ug/L 11/05/19 02:47 87-68-32.0 1.2 1
2-Hexanone <0.60 ug/L 11/05/19 02:47 591-78-65.0 0.60 1
Isopropylbenzene (Cumene)<0.24 ug/L 11/05/19 02:47 98-82-80.50 0.24 1
Methylene Chloride <1.5 ug/L 11/05/19 02:47 75-09-22.0 1.5 1
Methyl-tert-butyl ether <0.44 ug/L 11/05/19 02:47 1634-04-40.50 0.44 1
Naphthalene <0.66 ug/L 11/05/19 02:47 91-20-32.0 0.66 1
n-Propylbenzene <0.24 ug/L 11/05/19 02:47 103-65-10.50 0.24 1
Styrene <0.26 ug/L 11/05/19 02:47 100-42-50.50 0.26 1
1,1,1,2-Tetrachloroethane <0.42 ug/L 11/05/19 02:47 630-20-60.50 0.42 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:MW-3 Lab ID:92451820003 Collected:10/30/19 13:28 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
1,1,2,2-Tetrachloroethane <0.19 ug/L 11/05/19 02:47 79-34-50.50 0.19 1
Tetrachloroethene <0.23 ug/L 11/05/19 02:47 127-18-40.50 0.23 1
Toluene 0.99 ug/L 11/05/19 02:47 108-88-30.50 0.23 1
1,2,3-Trichlorobenzene <0.78 ug/L 11/05/19 02:47 87-61-62.0 0.78 1
1,2,4-Trichlorobenzene <0.44 ug/L 11/05/19 02:47 120-82-12.0 0.44 1
1,1,1-Trichloroethane <0.28 ug/L 11/05/19 02:47 71-55-60.50 0.28 1
1,1,2-Trichloroethane <0.23 ug/L 11/05/19 02:47 79-00-50.50 0.23 1
Trichloroethene <0.23 ug/L 11/05/19 02:47 79-01-60.50 0.23 1
Trichlorofluoromethane <0.34 ug/L 11/05/19 02:47 75-69-41.0 0.34 1
1,2,3-Trichloropropane <0.27 ug/L 11/05/19 02:47 96-18-40.50 0.27 1
1,2,4-Trimethylbenzene <0.19 ug/L 11/05/19 02:47 95-63-60.50 0.19 1
1,3,5-Trimethylbenzene <0.23 ug/L 11/05/19 02:47 108-67-80.50 0.23 1
Vinyl chloride <0.41 ug/L 11/05/19 02:47 75-01-41.0 0.41 1
Xylene (Total)<0.50 ug/L 11/05/19 02:47 1330-20-71.0 0.50 1
Surrogates
1,2-Dichloroethane-d4 (S)92 %11/05/19 02:47 17060-07-070-130 1
4-Bromofluorobenzene (S)92 %11/05/19 02:47 460-00-470-130 1
Toluene-d8 (S)97 %11/05/19 02:47 2037-26-570-130 1
Sample:MW-4 Lab ID:92451820004 Collected:10/30/19 14:30 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 516 ug/L 11/06/19 16:03 71-43-225.0 12.0 50
Bromobenzene <10.8 ug/L 11/06/19 16:03 108-86-125.0 10.8 50
Bromochloromethane <12.9 ug/L 11/06/19 16:03 74-97-525.0 12.9 50
Bromodichloromethane <9.2 ug/L 11/06/19 16:03 75-27-425.0 9.2 50
Bromoform <20.2 ug/L 11/06/19 16:03 75-25-225.0 20.2 50
Bromomethane <86.0 ug/L 11/06/19 16:03 74-83-925086.0 50
n-Butylbenzene <17.6 ug/L 11/06/19 16:03 104-51-825.0 17.6 50
sec-Butylbenzene <12.3 ug/L 11/06/19 16:03 135-98-825.0 12.3 50
tert-Butylbenzene <12.5 ug/L 11/06/19 16:03 98-06-625.0 12.5 50
Carbon tetrachloride <11.6 ug/L 11/06/19 16:03 56-23-525.0 11.6 50
Chlorobenzene <11.2 ug/L 11/06/19 16:03 108-90-725.0 11.2 50
Chloroethane <29.2 ug/L 11/06/19 16:03 75-00-350.0 29.2 50
Chloroform 96.6 ug/L 11/06/19 16:03 67-66-3 B,C925.0 17.6 50
Chloromethane <20.8 ug/L 11/06/19 16:03 74-87-350.0 20.8 50
2-Chlorotoluene <10.4 ug/L 11/06/19 16:03 95-49-825.0 10.4 50
4-Chlorotoluene <10.3 ug/L 11/06/19 16:03 106-43-425.0 10.3 50
1,2-Dibromo-3-chloropropane <19.2 ug/L 11/06/19 16:03 96-12-850.0 19.2 50
Dibromochloromethane <20.1 ug/L 11/06/19 16:03 124-48-125.0 20.1 50
1,2-Dibromoethane (EDB)<11.6 ug/L 11/06/19 16:03 106-93-425.0 11.6 50
Dibromomethane <15.5 ug/L 11/06/19 16:03 74-95-325.0 15.5 50
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:MW-4 Lab ID:92451820004 Collected:10/30/19 14:30 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
1,2-Dichlorobenzene <12.0 ug/L 11/06/19 16:03 95-50-125.0 12.0 50
1,3-Dichlorobenzene <12.5 ug/L 11/06/19 16:03 541-73-125.0 12.5 50
1,4-Dichlorobenzene <12.4 ug/L 11/06/19 16:03 106-46-725.0 12.4 50
Dichlorodifluoromethane <14.2 ug/L 11/06/19 16:03 75-71-825.0 14.2 50
1,1-Dichloroethane <12.2 ug/L 11/06/19 16:03 75-34-325.0 12.2 50
1,2-Dichloroethane <13.2 ug/L 11/06/19 16:03 107-06-225.0 13.2 50
1,1-Dichloroethene <10.9 ug/L 11/06/19 16:03 75-35-425.0 10.9 50
cis-1,2-Dichloroethene <10.4 ug/L 11/06/19 16:03 156-59-225.0 10.4 50
trans-1,2-Dichloroethene <12.8 ug/L 11/06/19 16:03 156-60-525.0 12.8 50
1,2-Dichloropropane <9.2 ug/L 11/06/19 16:03 78-87-525.0 9.2 50
1,3-Dichloropropane <17.0 ug/L 11/06/19 16:03 142-28-925.0 17.0 50
2,2-Dichloropropane <14.0 ug/L 11/06/19 16:03 594-20-725.0 14.0 50
1,1-Dichloropropene <17.4 ug/L 11/06/19 16:03 563-58-625.0 17.4 50
cis-1,3-Dichloropropene <17.8 ug/L 11/06/19 16:03 10061-01-525.0 17.8 50
trans-1,3-Dichloropropene <19.7 ug/L 11/06/19 16:03 10061-02-625.0 19.7 50
Diisopropyl ether <16.7 ug/L 11/06/19 16:03 108-20-325.0 16.7 50
Hexachloro-1,3-butadiene <60.0 ug/L 11/06/19 16:03 87-68-310060.0 50
Isopropylbenzene (Cumene)59.3 ug/L 11/06/19 16:03 98-82-825.0 11.9 50
Methylene Chloride <75.0 ug/L 11/06/19 16:03 75-09-210075.0 50
Methyl-tert-butyl ether <22.2 ug/L 11/06/19 16:03 1634-04-425.0 22.2 50
Naphthalene 371 ug/L 11/06/19 16:03 91-20-310033.0 50
n-Propylbenzene 182 ug/L 11/06/19 16:03 103-65-125.0 12.0 50
Styrene <12.8 ug/L 11/06/19 16:03 100-42-525.0 12.8 50
1,1,1,2-Tetrachloroethane <21.1 ug/L 11/06/19 16:03 630-20-625.0 21.1 50
1,1,2,2-Tetrachloroethane <9.6 ug/L 11/06/19 16:03 79-34-525.0 9.6 50
Tetrachloroethene <11.6 ug/L 11/06/19 16:03 127-18-425.0 11.6 50
Toluene 5850 ug/L 11/06/19 16:03 108-88-3 M125.0 11.4 50
1,2,3-Trichlorobenzene <39.0 ug/L 11/06/19 16:03 87-61-610039.0 50
1,2,4-Trichlorobenzene <21.8 ug/L 11/06/19 16:03 120-82-110021.8 50
1,1,1-Trichloroethane <13.9 ug/L 11/06/19 16:03 71-55-625.0 13.9 50
1,1,2-Trichloroethane <11.6 ug/L 11/06/19 16:03 79-00-525.0 11.6 50
Trichloroethene <11.6 ug/L 11/06/19 16:03 79-01-625.0 11.6 50
Trichlorofluoromethane <16.8 ug/L 11/06/19 16:03 75-69-450.0 16.8 50
1,2,3-Trichloropropane <13.6 ug/L 11/06/19 16:03 96-18-425.0 13.6 50
1,2,4-Trimethylbenzene 1480 ug/L 11/06/19 16:03 95-63-625.0 9.6 50
1,3,5-Trimethylbenzene 383 ug/L 11/06/19 16:03 108-67-825.0 11.4 50
Vinyl chloride <20.4 ug/L 11/06/19 16:03 75-01-450.0 20.4 50
Xylene (Total)6130 ug/L 11/06/19 16:03 1330-20-750.0 25.0 50
Surrogates
1,2-Dichloroethane-d4 (S)104 %11/06/19 16:03 17060-07-070-130 50
4-Bromofluorobenzene (S)111 %11/06/19 16:03 460-00-470-130 50
Toluene-d8 (S)98 %11/06/19 16:03 2037-26-570-130 50
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:MW-6 Lab ID:92451820005 Collected:10/30/19 13:43 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
Benzene 55.4 ug/L 11/06/19 15:09 71-43-22.5 1.2 5
Bromobenzene <1.1 ug/L 11/06/19 15:09 108-86-12.5 1.1 5
Bromochloromethane <1.3 ug/L 11/06/19 15:09 74-97-52.5 1.3 5
Bromodichloromethane <0.92 ug/L 11/06/19 15:09 75-27-42.5 0.92 5
Bromoform <2.0 ug/L 11/06/19 15:09 75-25-22.5 2.0 5
Bromomethane <8.6 ug/L 11/06/19 15:09 74-83-925.0 8.6 5
2-Butanone (MEK)<18.0 ug/L 11/06/19 15:09 78-93-325.0 18.0 5
n-Butylbenzene 12.2 ug/L 11/06/19 15:09 104-51-82.5 1.8 5
sec-Butylbenzene 11.9 ug/L 11/06/19 15:09 135-98-82.5 1.2 5
tert-Butylbenzene 1.8J ug/L 11/06/19 15:09 98-06-62.5 1.2 5
Carbon tetrachloride <1.2 ug/L 11/06/19 15:09 56-23-52.5 1.2 5
Chlorobenzene <1.1 ug/L 11/06/19 15:09 108-90-72.5 1.1 5
Chloroethane <2.9 ug/L 11/06/19 15:09 75-00-35.0 2.9 5
Chloroform 4.6 ug/L 11/06/19 15:09 67-66-32.5 1.8 5
Chloromethane <2.1 ug/L 11/06/19 15:09 74-87-35.0 2.1 5
2-Chlorotoluene <1.0 ug/L 11/06/19 15:09 95-49-82.5 1.0 5
4-Chlorotoluene <1.0 ug/L 11/06/19 15:09 106-43-42.5 1.0 5
1,2-Dibromo-3-chloropropane <1.9 ug/L 11/06/19 15:09 96-12-85.0 1.9 5
Dibromochloromethane <2.0 ug/L 11/06/19 15:09 124-48-12.5 2.0 5
1,2-Dibromoethane (EDB)<1.2 ug/L 11/06/19 15:09 106-93-42.5 1.2 5
Dibromomethane <1.6 ug/L 11/06/19 15:09 74-95-32.5 1.6 5
1,2-Dichlorobenzene <1.2 ug/L 11/06/19 15:09 95-50-12.5 1.2 5
1,3-Dichlorobenzene <1.2 ug/L 11/06/19 15:09 541-73-12.5 1.2 5
1,4-Dichlorobenzene <1.2 ug/L 11/06/19 15:09 106-46-72.5 1.2 5
Dichlorodifluoromethane <1.4 ug/L 11/06/19 15:09 75-71-82.5 1.4 5
1,1-Dichloroethane <1.2 ug/L 11/06/19 15:09 75-34-32.5 1.2 5
1,2-Dichloroethane <1.3 ug/L 11/06/19 15:09 107-06-22.5 1.3 5
1,1-Dichloroethene <1.1 ug/L 11/06/19 15:09 75-35-42.5 1.1 5
cis-1,2-Dichloroethene <1.0 ug/L 11/06/19 15:09 156-59-22.5 1.0 5
trans-1,2-Dichloroethene <1.3 ug/L 11/06/19 15:09 156-60-52.5 1.3 5
1,2-Dichloropropane <0.92 ug/L 11/06/19 15:09 78-87-52.5 0.92 5
1,3-Dichloropropane <1.7 ug/L 11/06/19 15:09 142-28-92.5 1.7 5
2,2-Dichloropropane <1.4 ug/L 11/06/19 15:09 594-20-72.5 1.4 5
1,1-Dichloropropene <1.7 ug/L 11/06/19 15:09 563-58-62.5 1.7 5
cis-1,3-Dichloropropene <1.8 ug/L 11/06/19 15:09 10061-01-52.5 1.8 5
trans-1,3-Dichloropropene <2.0 ug/L 11/06/19 15:09 10061-02-62.5 2.0 5
Diisopropyl ether <1.7 ug/L 11/06/19 15:09 108-20-32.5 1.7 5
Hexachloro-1,3-butadiene <6.0 ug/L 11/06/19 15:09 87-68-310.0 6.0 5
2-Hexanone 27.3 ug/L 11/06/19 15:09 591-78-625.0 3.0 5
Isopropylbenzene (Cumene)75.4 ug/L 11/06/19 15:09 98-82-82.5 1.2 5
Methylene Chloride <7.5 ug/L 11/06/19 15:09 75-09-210.0 7.5 5
Methyl-tert-butyl ether <2.2 ug/L 11/06/19 15:09 1634-04-42.5 2.2 5
Naphthalene 126 ug/L 11/06/19 15:09 91-20-310.0 3.3 5
n-Propylbenzene 92.6 ug/L 11/06/19 15:09 103-65-12.5 1.2 5
Styrene <1.3 ug/L 11/06/19 15:09 100-42-52.5 1.3 5
1,1,1,2-Tetrachloroethane <2.1 ug/L 11/06/19 15:09 630-20-62.5 2.1 5
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Page 11 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Sample:MW-6 Lab ID:92451820005 Collected:10/30/19 13:43 Received:10/31/19 07:48 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B6200B MSV
1,1,2,2-Tetrachloroethane <0.96 ug/L 11/06/19 15:09 79-34-52.5 0.96 5
Tetrachloroethene <1.2 ug/L 11/06/19 15:09 127-18-42.5 1.2 5
Toluene 829 ug/L 11/06/19 15:09 108-88-32.5 1.1 5
1,2,3-Trichlorobenzene <3.9 ug/L 11/06/19 15:09 87-61-610.0 3.9 5
1,2,4-Trichlorobenzene <2.2 ug/L 11/06/19 15:09 120-82-110.0 2.2 5
1,1,1-Trichloroethane <1.4 ug/L 11/06/19 15:09 71-55-62.5 1.4 5
1,1,2-Trichloroethane <1.2 ug/L 11/06/19 15:09 79-00-52.5 1.2 5
Trichloroethene <1.2 ug/L 11/06/19 15:09 79-01-62.5 1.2 5
Trichlorofluoromethane <1.7 ug/L 11/06/19 15:09 75-69-45.0 1.7 5
1,2,3-Trichloropropane 6.3 ug/L 11/06/19 15:09 96-18-42.5 1.4 5
1,2,4-Trimethylbenzene 492 ug/L 11/06/19 15:09 95-63-62.5 0.96 5
1,3,5-Trimethylbenzene 174 ug/L 11/06/19 15:09 108-67-82.5 1.1 5
Vinyl chloride <2.0 ug/L 11/06/19 15:09 75-01-45.0 2.0 5
Xylene (Total)2150 ug/L 11/06/19 15:09 1330-20-75.0 2.5 5
Surrogates
1,2-Dichloroethane-d4 (S)91 %11/06/19 15:09 17060-07-070-130 5
4-Bromofluorobenzene (S)97 %11/06/19 15:09 460-00-470-130 5
Toluene-d8 (S)99 %11/06/19 15:09 2037-26-570-130 5
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Page 12 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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:
507450
SM 6200B
SM 6200B
6200B MSV
Associated Lab Samples:92451820001, 92451820003
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:2724398
Associated Lab Samples:92451820001, 92451820003
Matrix:Water
AnalyzedMDL
1,1,1,2-Tetrachloroethane ug/L <0.42 0.50 11/04/19 22:190.42
1,1,1-Trichloroethane ug/L <0.28 0.50 11/04/19 22:190.28
1,1,2,2-Tetrachloroethane ug/L <0.19 0.50 11/04/19 22:190.19
1,1,2-Trichloroethane ug/L <0.23 0.50 11/04/19 22:190.23
1,1-Dichloroethane ug/L <0.24 0.50 11/04/19 22:190.24
1,1-Dichloroethene ug/L <0.22 0.50 11/04/19 22:190.22
1,1-Dichloropropene ug/L <0.35 0.50 11/04/19 22:190.35
1,2,3-Trichlorobenzene ug/L <0.78 2.0 11/04/19 22:190.78
1,2,3-Trichloropropane ug/L <0.27 0.50 11/04/19 22:190.27
1,2,4-Trichlorobenzene ug/L <0.44 2.0 11/04/19 22:190.44
1,2,4-Trimethylbenzene ug/L <0.19 0.50 11/04/19 22:190.19
1,2-Dibromo-3-chloropropane ug/L <0.38 1.0 11/04/19 22:190.38
1,2-Dibromoethane (EDB)ug/L <0.23 0.50 11/04/19 22:190.23
1,2-Dichlorobenzene ug/L <0.24 0.50 11/04/19 22:190.24
1,2-Dichloroethane ug/L <0.26 0.50 11/04/19 22:190.26
1,2-Dichloropropane ug/L <0.18 0.50 11/04/19 22:190.18
1,3,5-Trimethylbenzene ug/L <0.23 0.50 11/04/19 22:190.23
1,3-Dichlorobenzene ug/L <0.25 0.50 11/04/19 22:190.25
1,3-Dichloropropane ug/L <0.34 0.50 11/04/19 22:190.34
1,4-Dichlorobenzene ug/L <0.25 0.50 11/04/19 22:190.25
2,2-Dichloropropane ug/L <0.28 0.50 11/04/19 22:190.28
2-Chlorotoluene ug/L <0.21 0.50 11/04/19 22:190.21
4-Chlorotoluene ug/L <0.21 0.50 11/04/19 22:190.21
Benzene ug/L <0.24 0.50 11/04/19 22:190.24
Bromobenzene ug/L <0.22 0.50 11/04/19 22:190.22
Bromochloromethane ug/L <0.26 0.50 11/04/19 22:190.26
Bromodichloromethane ug/L <0.18 0.50 11/04/19 22:190.18
Bromoform ug/L <0.40 0.50 11/04/19 22:190.40
Bromomethane ug/L <1.7 5.0 11/04/19 22:191.7
Carbon tetrachloride ug/L <0.23 0.50 11/04/19 22:190.23
Chlorobenzene ug/L <0.22 0.50 11/04/19 22:190.22
Chloroethane ug/L <0.58 1.0 11/04/19 22:190.58
Chloroform ug/L 0.80 0.50 11/04/19 22:190.35
Chloromethane ug/L <0.42 1.0 11/04/19 22:190.42
cis-1,2-Dichloroethene ug/L <0.21 0.50 11/04/19 22:190.21
cis-1,3-Dichloropropene ug/L <0.36 0.50 11/04/19 22:190.36
Dibromochloromethane ug/L <0.40 0.50 11/04/19 22:190.40
Dibromomethane ug/L <0.31 0.50 11/04/19 22:190.31
Dichlorodifluoromethane ug/L <0.28 0.50 11/04/19 22:190.28
Diisopropyl ether ug/L <0.33 0.50 11/04/19 22:190.33
Hexachloro-1,3-butadiene ug/L <1.2 2.0 11/04/19 22:191.2
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Page 13 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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:2724398
Associated Lab Samples:92451820001, 92451820003
Matrix:Water
AnalyzedMDL
Isopropylbenzene (Cumene)ug/L <0.24 0.50 11/04/19 22:190.24
Methyl-tert-butyl ether ug/L <0.44 0.50 11/04/19 22:190.44
Methylene Chloride ug/L <1.5 2.0 11/04/19 22:191.5
n-Butylbenzene ug/L <0.35 0.50 11/04/19 22:190.35
n-Propylbenzene ug/L <0.24 0.50 11/04/19 22:190.24
Naphthalene ug/L <0.66 2.0 11/04/19 22:190.66
sec-Butylbenzene ug/L <0.25 0.50 11/04/19 22:190.25
Styrene ug/L <0.26 0.50 11/04/19 22:190.26
tert-Butylbenzene ug/L <0.25 0.50 11/04/19 22:190.25
Tetrachloroethene ug/L <0.23 0.50 11/04/19 22:190.23
Toluene ug/L <0.23 0.50 11/04/19 22:190.23
trans-1,2-Dichloroethene ug/L <0.26 0.50 11/04/19 22:190.26
trans-1,3-Dichloropropene ug/L <0.39 0.50 11/04/19 22:190.39
Trichloroethene ug/L <0.23 0.50 11/04/19 22:190.23
Trichlorofluoromethane ug/L <0.34 1.0 11/04/19 22:190.34
Vinyl chloride ug/L <0.41 1.0 11/04/19 22:190.41
Xylene (Total)ug/L <0.50 1.0 11/04/19 22:190.50
1,2-Dichloroethane-d4 (S)%93 70-130 11/04/19 22:19
4-Bromofluorobenzene (S)%96 70-130 11/04/19 22:19
Toluene-d8 (S)%111 70-130 11/04/19 22:19
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
2724399LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 52.550 105 60-140
1,1,1-Trichloroethane ug/L 50.550 101 60-140
1,1,2,2-Tetrachloroethane ug/L 51.950 104 60-140
1,1,2-Trichloroethane ug/L 51.650 103 60-140
1,1-Dichloroethane ug/L 47.450 95 60-140
1,1-Dichloroethene ug/L 53.350 107 60-140
1,1-Dichloropropene ug/L 50.150 100 60-140
1,2,3-Trichlorobenzene ug/L 57.750 115 60-140
1,2,3-Trichloropropane ug/L 51.250 102 60-140
1,2,4-Trichlorobenzene ug/L 58.050 116 60-140
1,2,4-Trimethylbenzene ug/L 50.250 100 60-140
1,2-Dibromo-3-chloropropane ug/L 59.150 118 60-140
1,2-Dibromoethane (EDB)ug/L 54.150 108 60-140
1,2-Dichlorobenzene ug/L 52.150 104 60-140
1,2-Dichloroethane ug/L 44.850 90 60-140
1,2-Dichloropropane ug/L 56.550 113 60-140
1,3,5-Trimethylbenzene ug/L 50.350 101 60-140
1,3-Dichlorobenzene ug/L 48.750 97 60-140
1,3-Dichloropropane ug/L 54.450 109 60-140
1,4-Dichlorobenzene ug/L 49.550 99 60-140
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Huntersville, NC 28078
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Page 14 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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.
2724399LABORATORY CONTROL SAMPLE:
LCSSpike
2,2-Dichloropropane ug/L 51.950 104 60-140
2-Chlorotoluene ug/L 50.150 100 60-140
4-Chlorotoluene ug/L 50.050 100 60-140
Benzene ug/L 52.650 105 60-140
Bromobenzene ug/L 51.750 103 60-140
Bromochloromethane ug/L 50.650 101 60-140
Bromodichloromethane ug/L 56.150 112 60-140
Bromoform ug/L 55.050 110 60-140
Bromomethane ug/L 38.150 76 60-140
Carbon tetrachloride ug/L 50.050 100 60-140
Chlorobenzene ug/L 50.250 100 60-140
Chloroethane ug/L 45.750 91 60-140
Chloroform ug/L 50.250 100 60-140
Chloromethane ug/L 37.350 75 60-140
cis-1,2-Dichloroethene ug/L 48.050 96 60-140
cis-1,3-Dichloropropene ug/L 59.550 119 60-140
Dibromochloromethane ug/L 54.250 108 60-140
Dibromomethane ug/L 51.750 103 60-140
Dichlorodifluoromethane ug/L 40.750 81 60-140
Diisopropyl ether ug/L 50.150 100 60-140
Hexachloro-1,3-butadiene ug/L 56.750 113 60-140
Isopropylbenzene (Cumene)ug/L 52.350 105 60-140
Methyl-tert-butyl ether ug/L 51.550 103 60-140
Methylene Chloride ug/L 45.650 91 60-140
n-Butylbenzene ug/L 51.550 103 60-140
n-Propylbenzene ug/L 50.550 101 60-140
Naphthalene ug/L 60.250 120 60-140
sec-Butylbenzene ug/L 51.250 102 60-140
Styrene ug/L 52.150 104 60-140
tert-Butylbenzene ug/L 42.850 86 60-140
Tetrachloroethene ug/L 54.350 109 60-140
Toluene ug/L 50.650 101 60-140
trans-1,2-Dichloroethene ug/L 46.750 93 60-140
trans-1,3-Dichloropropene ug/L 51.950 104 60-140
Trichloroethene ug/L 52.350 105 60-140
Trichlorofluoromethane ug/L 50.050 100 60-140
Vinyl chloride ug/L 47.850 96 60-140
Xylene (Total)ug/L 156150 104 60-140
1,2-Dichloroethane-d4 (S)%94 70-130
4-Bromofluorobenzene (S)%100 70-130
Toluene-d8 (S)%105 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Page 15 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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.
2725355MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451227001
2725356
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 108 60-140106 1 3020ND21.5 21.3
1,1,1-Trichloroethane ug/L 20 107 60-140106 0 3020ND21.3 21.3
1,1,2,2-Tetrachloroethane ug/L 20 95 60-140101 7 3020ND18.9 20.3
1,1,2-Trichloroethane ug/L 20 117 60-14098 18 3020ND23.4 19.6
1,1-Dichloroethane ug/L 20 102 60-140113 10 3020ND20.4 22.6
1,1-Dichloroethene ug/L 20 124 60-140125 1 3020ND24.8 25.0
1,1-Dichloropropene ug/L 20 104 60-140104 0 3020ND20.8 20.8
1,2,3-Trichlorobenzene ug/L 20 111 60-140101 10 3020ND22.2 20.1
1,2,3-Trichloropropane ug/L 20 92 60-14097 6 3020ND18.4 19.4
1,2,4-Trichlorobenzene ug/L 20 115 60-14098 16 3020ND23.0 19.6
1,2,4-Trimethylbenzene ug/L 20 102 60-140100 3 3020ND20.5 19.9
1,2-Dibromo-3-
chloropropane ug/L 20 119 60-140106 12 3020ND23.8 21.2
1,2-Dibromoethane (EDB)ug/L 20 111 60-14090 21 3020ND22.2 18.1
1,2-Dichlorobenzene ug/L 20 103 60-14097 6 3020ND20.7 19.5
1,2-Dichloroethane ug/L 20 92 60-14098 6 3020ND18.4 19.6
1,2-Dichloropropane ug/L 20 120 60-14098 20 3020ND23.9 19.6
1,3,5-Trimethylbenzene ug/L 20 102 60-140109 7 3020ND20.4 21.9
1,3-Dichlorobenzene ug/L 20 101 60-14098 3 3020ND20.1 19.5
1,3-Dichloropropane ug/L 20 108 60-14092 15 3020ND21.5 18.5
1,4-Dichlorobenzene ug/L 20 100 60-14096 4 3020ND20.1 19.2
2,2-Dichloropropane ug/L 20 84 60-14084 0 3020ND16.8 16.8
2-Chlorotoluene ug/L 20 102 60-140109 7 3020ND20.4 21.8
4-Chlorotoluene ug/L 20 100 60-140105 5 3020ND20.0 21.1
Benzene ug/L 20 120 60-140104 14 3020ND23.9 20.8
Bromobenzene ug/L 20 107 60-140116 8 3020ND21.3 23.2
Bromochloromethane ug/L 20 99 60-140102 3 3020ND19.9 20.4
Bromodichloromethane ug/L 20 117 60-140112 4 3020ND23.3 22.5
Bromoform ug/L 20 101 60-140100 1 3020ND20.2 20.1
Bromomethane ug/L 20 65 60-14076 16 3020ND13.0 15.2
Carbon tetrachloride ug/L 20 104 60-14099 6 3020ND20.9 19.7
Chlorobenzene ug/L 20 107 60-140103 4 3020ND21.4 20.5
Chloroethane ug/L 20 117 60-140117 0 3020ND23.3 23.4
Chloroform ug/L 20 102 60-140102 0 3020ND20.4 20.4
Chloromethane ug/L 20 87 60-14077 13 3020ND17.5 15.3
cis-1,2-Dichloroethene ug/L 20 101 60-140101 0 3020ND20.7 20.6
cis-1,3-Dichloropropene ug/L 20 116 60-140114 2 3020ND23.2 22.8
Dibromochloromethane ug/L 20 106 60-14093 13 3020ND21.1 18.6
Dibromomethane ug/L 20 114 60-14096 18 3020ND22.8 19.1
Dichlorodifluoromethane ug/L 20 107 60-14084 24 3020ND21.3 16.7
Diisopropyl ether ug/L 20 99 60-140116 16 3020ND19.8 23.2
Hexachloro-1,3-butadiene ug/L 20 110 60-14093 16 3020ND21.9 18.6
Isopropylbenzene
(Cumene)ug/L 20 96 60-14098 2 3020ND19.3 19.7
Methyl-tert-butyl ether ug/L 20 113 60-140122 8 3020ND22.6 24.4
Methylene Chloride ug/L 20 111 60-140118 6 3020ND22.3 23.6
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
Pace Analytical Services, LLC
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Page 16 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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.
2725355MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451227001
2725356
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
n-Butylbenzene ug/L 20 100 60-14094 6 3020ND19.9 18.8
n-Propylbenzene ug/L 20 103 60-140112 8 3020ND20.6 22.4
Naphthalene ug/L 20 112 60-14099 12 3020ND22.4 19.8
sec-Butylbenzene ug/L 20 107 60-140105 1 3020ND21.4 21.1
Styrene ug/L 20 94 60-14094 1 3020ND18.8 18.7
tert-Butylbenzene ug/L 20 90 60-14092 2 3020ND18.0 18.4
Tetrachloroethene ug/L 20 100 60-14093 7 3020ND19.9 18.5
Toluene ug/L 20 101 60-140105 5 3020ND20.1 21.1
trans-1,2-Dichloroethene ug/L 20 118 60-140122 3 3020ND23.7 24.4
trans-1,3-Dichloropropene ug/L 20 97 60-14094 3 3020ND19.4 18.8
Trichloroethene ug/L 20 116 60-140111 4 3020ND23.2 22.2
Trichlorofluoromethane ug/L 20 121 60-140119 2 3020ND24.2 23.7
Vinyl chloride ug/L 20 108 60-140107 2 3020ND21.7 21.3
Xylene (Total)ug/L 9 3062.4 56.9
1,2-Dichloroethane-d4 (S)%90 70-13096
4-Bromofluorobenzene (S)%87 70-13099
Toluene-d8 (S)%92 70-130101
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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[phone]
Page 17 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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:
507868
SM 6200B
SM 6200B
6200B MSV
Associated Lab Samples:92451820002, 92451820004, 92451820005
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:2726324
Associated Lab Samples:92451820002, 92451820004, 92451820005
Matrix:Water
AnalyzedMDL
1,1,1,2-Tetrachloroethane ug/L <0.42 0.50 11/06/19 11:170.42
1,1,1-Trichloroethane ug/L <0.28 0.50 11/06/19 11:170.28
1,1,2,2-Tetrachloroethane ug/L <0.19 0.50 11/06/19 11:170.19
1,1,2-Trichloroethane ug/L <0.23 0.50 11/06/19 11:170.23
1,1-Dichloroethane ug/L <0.24 0.50 11/06/19 11:170.24
1,1-Dichloroethene ug/L <0.22 0.50 11/06/19 11:170.22
1,1-Dichloropropene ug/L <0.35 0.50 11/06/19 11:170.35
1,2,3-Trichlorobenzene ug/L <0.78 2.0 11/06/19 11:170.78
1,2,3-Trichloropropane ug/L <0.27 0.50 11/06/19 11:170.27
1,2,4-Trichlorobenzene ug/L <0.44 2.0 11/06/19 11:170.44
1,2,4-Trimethylbenzene ug/L <0.19 0.50 11/06/19 11:170.19
1,2-Dibromo-3-chloropropane ug/L <0.38 1.0 11/06/19 11:170.38
1,2-Dibromoethane (EDB)ug/L <0.23 0.50 11/06/19 11:170.23
1,2-Dichlorobenzene ug/L <0.24 0.50 11/06/19 11:170.24
1,2-Dichloroethane ug/L <0.26 0.50 11/06/19 11:170.26
1,2-Dichloropropane ug/L <0.18 0.50 11/06/19 11:170.18
1,3,5-Trimethylbenzene ug/L <0.23 0.50 11/06/19 11:170.23
1,3-Dichlorobenzene ug/L <0.25 0.50 11/06/19 11:170.25
1,3-Dichloropropane ug/L <0.34 0.50 11/06/19 11:170.34
1,4-Dichlorobenzene ug/L <0.25 0.50 11/06/19 11:170.25
2,2-Dichloropropane ug/L <0.28 0.50 11/06/19 11:170.28
2-Chlorotoluene ug/L <0.21 0.50 11/06/19 11:170.21
4-Chlorotoluene ug/L <0.21 0.50 11/06/19 11:170.21
Benzene ug/L <0.24 0.50 11/06/19 11:170.24
Bromobenzene ug/L <0.22 0.50 11/06/19 11:170.22
Bromochloromethane ug/L <0.26 0.50 11/06/19 11:170.26
Bromodichloromethane ug/L <0.18 0.50 11/06/19 11:170.18
Bromoform ug/L <0.40 0.50 11/06/19 11:170.40
Bromomethane ug/L <1.7 5.0 11/06/19 11:171.7
Carbon tetrachloride ug/L <0.23 0.50 11/06/19 11:170.23
Chlorobenzene ug/L <0.22 0.50 11/06/19 11:170.22
Chloroethane ug/L <0.58 1.0 11/06/19 11:170.58
Chloroform ug/L 1.5 0.50 11/06/19 11:170.35
Chloromethane ug/L <0.42 1.0 11/06/19 11:170.42
cis-1,2-Dichloroethene ug/L <0.21 0.50 11/06/19 11:170.21
cis-1,3-Dichloropropene ug/L <0.36 0.50 11/06/19 11:170.36
Dibromochloromethane ug/L <0.40 0.50 11/06/19 11:170.40
Dibromomethane ug/L <0.31 0.50 11/06/19 11:170.31
Dichlorodifluoromethane ug/L <0.28 0.50 11/06/19 11:170.28
Diisopropyl ether ug/L <0.33 0.50 11/06/19 11:170.33
Hexachloro-1,3-butadiene ug/L <1.2 2.0 11/06/19 11:171.2
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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:2726324
Associated Lab Samples:92451820002, 92451820004, 92451820005
Matrix:Water
AnalyzedMDL
Isopropylbenzene (Cumene)ug/L <0.24 0.50 11/06/19 11:170.24
Methyl-tert-butyl ether ug/L <0.44 0.50 11/06/19 11:170.44
Methylene Chloride ug/L <1.5 2.0 11/06/19 11:171.5
n-Butylbenzene ug/L <0.35 0.50 11/06/19 11:170.35
n-Propylbenzene ug/L <0.24 0.50 11/06/19 11:170.24
Naphthalene ug/L <0.66 2.0 11/06/19 11:170.66
sec-Butylbenzene ug/L <0.25 0.50 11/06/19 11:170.25
Styrene ug/L <0.26 0.50 11/06/19 11:170.26
tert-Butylbenzene ug/L <0.25 0.50 11/06/19 11:170.25
Tetrachloroethene ug/L <0.23 0.50 11/06/19 11:170.23
Toluene ug/L <0.23 0.50 11/06/19 11:170.23
trans-1,2-Dichloroethene ug/L <0.26 0.50 11/06/19 11:170.26
trans-1,3-Dichloropropene ug/L <0.39 0.50 11/06/19 11:170.39
Trichloroethene ug/L <0.23 0.50 11/06/19 11:170.23
Trichlorofluoromethane ug/L <0.34 1.0 11/06/19 11:170.34
Vinyl chloride ug/L <0.41 1.0 11/06/19 11:170.41
Xylene (Total)ug/L <0.50 1.0 11/06/19 11:170.50
1,2-Dichloroethane-d4 (S)%94 70-130 11/06/19 11:17
4-Bromofluorobenzene (S)%99 70-130 11/06/19 11:17
Toluene-d8 (S)%101 70-130 11/06/19 11:17
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
2726325LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 53.050 106 60-140
1,1,1-Trichloroethane ug/L 49.950 100 60-140
1,1,2,2-Tetrachloroethane ug/L 50.650 101 60-140
1,1,2-Trichloroethane ug/L 52.150 104 60-140
1,1-Dichloroethane ug/L 54.350 109 60-140
1,1-Dichloroethene ug/L 55.850 112 60-140
1,1-Dichloropropene ug/L 49.850 100 60-140
1,2,3-Trichlorobenzene ug/L 57.850 116 60-140
1,2,3-Trichloropropane ug/L 50.350 101 60-140
1,2,4-Trichlorobenzene ug/L 57.750 115 60-140
1,2,4-Trimethylbenzene ug/L 50.950 102 60-140
1,2-Dibromo-3-chloropropane ug/L 61.650 123 60-140
1,2-Dibromoethane (EDB)ug/L 52.850 106 60-140
1,2-Dichlorobenzene ug/L 51.250 102 60-140
1,2-Dichloroethane ug/L 45.250 90 60-140
1,2-Dichloropropane ug/L 56.650 113 60-140
1,3,5-Trimethylbenzene ug/L 50.850 102 60-140
1,3-Dichlorobenzene ug/L 49.450 99 60-140
1,3-Dichloropropane ug/L 53.650 107 60-140
1,4-Dichlorobenzene ug/L 49.650 99 60-140
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Page 19 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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.
2726325LABORATORY CONTROL SAMPLE:
LCSSpike
2,2-Dichloropropane ug/L 55.650 111 60-140
2-Chlorotoluene ug/L 49.750 99 60-140
4-Chlorotoluene ug/L 49.750 99 60-140
Benzene ug/L 51.650 103 60-140
Bromobenzene ug/L 52.350 105 60-140
Bromochloromethane ug/L 53.550 107 60-140
Bromodichloromethane ug/L 54.650 109 60-140
Bromoform ug/L 52.550 105 60-140
Bromomethane ug/L 48.750 97 60-140
Carbon tetrachloride ug/L 50.950 102 60-140
Chlorobenzene ug/L 50.050 100 60-140
Chloroethane ug/L 50.050 100 60-140
Chloroform ug/L 54.750 109 60-140
Chloromethane ug/L 35.650 71 60-140
cis-1,2-Dichloroethene ug/L 54.150 108 60-140
cis-1,3-Dichloropropene ug/L 65.450 131 60-140
Dibromochloromethane ug/L 53.150 106 60-140
Dibromomethane ug/L 57.150 114 60-140
Dichlorodifluoromethane ug/L 44.150 88 60-140
Diisopropyl ether ug/L 56.150 112 60-140
Hexachloro-1,3-butadiene ug/L 57.850 116 60-140
Isopropylbenzene (Cumene)ug/L 52.950 106 60-140
Methyl-tert-butyl ether ug/L 59.150 118 60-140
Methylene Chloride ug/L 54.450 109 60-140
n-Butylbenzene ug/L 52.150 104 60-140
n-Propylbenzene ug/L 50.650 101 60-140
Naphthalene ug/L 57.250 114 60-140
sec-Butylbenzene ug/L 51.650 103 60-140
Styrene ug/L 52.550 105 60-140
tert-Butylbenzene ug/L 42.950 86 60-140
Tetrachloroethene ug/L 57.250 114 60-140
Toluene ug/L 57.450 115 60-140
trans-1,2-Dichloroethene ug/L 55.550 111 60-140
trans-1,3-Dichloropropene ug/L 54.950 110 60-140
Trichloroethene ug/L 51.850 104 60-140
Trichlorofluoromethane ug/L 52.750 105 60-140
Vinyl chloride ug/L 46.150 92 60-140
Xylene (Total)ug/L 154150 103 60-140
1,2-Dichloroethane-d4 (S)%95 70-130
4-Bromofluorobenzene (S)%100 70-130
Toluene-d8 (S)%113 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Huntersville, NC 28078
[phone]
Page 20 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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.
2726326MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451820004
2726327
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 1000 111 60-140108 2 301000<21.1 1110 1080
1,1,1-Trichloroethane ug/L 1000 118 60-140111 5 301000<13.9 1180 1110
1,1,2,2-Tetrachloroethane ug/L 1000 105 60-14099 6 301000<9.6 1050 988
1,1,2-Trichloroethane ug/L 1000 119 60-140113 5 301000<11.6 1190 1130
1,1-Dichloroethane ug/L 1000 118 60-140108 9 301000<12.2 1180 1080
1,1-Dichloroethene ug/L 1000 126 60-140116 8 301000<10.9 1260 1160
1,1-Dichloropropene ug/L 1000 117 60-140112 5 301000<17.4 1170 1120
1,2,3-Trichlorobenzene ug/L 1000 96 60-140110 14 301000<39.0 958 1100
1,2,3-Trichloropropane ug/L 1000 113 60-140103 9 301000<13.6 1130 1030
1,2,4-Trichlorobenzene ug/L 1000 101 60-140107 6 301000<21.8 1010 1070
1,2,4-Trimethylbenzene ug/L 1000 119 60-14099 8 301000148026702470
1,2-Dibromo-3-
chloropropane ug/L 1000 110 60-140114 3 301000<19.2 1100 1140
1,2-Dibromoethane (EDB)ug/L 1000 111 60-140109 2 301000<11.6 1110 1090
1,2-Dichlorobenzene ug/L 1000 106 60-140102 4 301000<12.0 1060 1020
1,2-Dichloroethane ug/L 1000 106 60-14098 8 301000<13.2 1060 980
1,2-Dichloropropane ug/L 1000 115 60-140115 0 301000<9.2 1150 1150
1,3,5-Trimethylbenzene ug/L 1000 115 60-14096 14 30100038315401340
1,3-Dichlorobenzene ug/L 1000 104 60-140101 3 301000<12.5 1040 1010
1,3-Dichloropropane ug/L 1000 112 60-140110 2 301000<17.0 1120 1100
1,4-Dichlorobenzene ug/L 1000 102 60-14099 4 301000<12.4 1020 985
2,2-Dichloropropane ug/L 1000 106 60-140100 6 301000<14.0 1060 1000
2-Chlorotoluene ug/L 1000 114 60-140103 10 301000<10.4 1140 1030
4-Chlorotoluene ug/L 1000 105 60-14098 7 301000<10.3 1050 980
Benzene ug/L 1000 118 60-140109 5 30100051616901610
Bromobenzene ug/L 1000 115 60-140105 9 301000<10.8 1150 1050
Bromochloromethane ug/L 1000 110 60-140104 6 301000<12.9 1100 1040
Bromodichloromethane ug/L 1000 122 60-140118 3 301000<9.2 1220 1180
Bromoform ug/L 1000 113 60-140107 5 301000<20.2 1130 1070
Bromomethane ug/L 1000 69 60-14069 0 301000<86.0 691 692
Carbon tetrachloride ug/L 1000 116 60-140113 2 301000<11.6 1160 1130
Chlorobenzene ug/L 1000 108 60-140105 3 301000<11.2 1080 1050
Chloroethane ug/L 1000 123 60-140114 7 301000<29.2 1230 1140
Chloroform ug/L 1000 116 60-140106 8 30100096.6 1260 1160
Chloromethane ug/L 1000 101 60-140100 1 301000<20.8 1010 998
cis-1,2-Dichloroethene ug/L 1000 116 60-140107 8 301000<10.4 1160 1070
cis-1,3-Dichloropropene ug/L 1000 120 60-140112 7 301000<17.8 1200 1120
Dibromochloromethane ug/L 1000 117 60-140113 3 301000<20.1 1170 1130
Dibromomethane ug/L 1000 111 60-140106 4 301000<15.5 1110 1060
Dichlorodifluoromethane ug/L 1000 124 60-140103 18 301000<14.2 1240 1030
Diisopropyl ether ug/L 1000 112 60-140103 9 301000<16.7 1120 1030
Hexachloro-1,3-butadiene ug/L 1000 108 60-140105 3 301000<60.0 1080 1050
Isopropylbenzene
(Cumene)ug/L 1000 119 60-140106 11 30100059.3 1250 1120
Methyl-tert-butyl ether ug/L 1000 109 60-140108 1 301000<22.2 1090 1080
Methylene Chloride ug/L 1000 103 60-14095 8 301000<75.0 1030 948
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Huntersville, NC 28078
[phone]
Page 21 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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.
2726326MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92451820004
2726327
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
n-Butylbenzene ug/L 1000 110 60-140109 1 301000<17.6 1100 1090
n-Propylbenzene ug/L 1000 114 60-14099 12 30100018213201170
Naphthalene ug/L 1000 96 60-140107 8 30100037113301440
sec-Butylbenzene ug/L 1000 113 60-140111 3 301000<12.3 1130 1110
Styrene ug/L 1000 114 60-140106 8 301000<12.8 1140 1060
tert-Butylbenzene ug/L 1000 93 60-14099 6 301000<12.5 933 993
Tetrachloroethene ug/L 1000 116 60-140114 2 301000<11.6 1160 1140
Toluene ug/L M110009760-14055 6 301000585068206400
trans-1,2-Dichloroethene ug/L 1000 108 60-140105 3 301000<12.8 1080 1050
trans-1,3-Dichloropropene ug/L 1000 109 60-140111 2 301000<19.7 1090 1110
Trichloroethene ug/L 1000 120 60-140114 5 301000<11.6 1200 1140
Trichlorofluoromethane ug/L 1000 127 60-140120 5 301000<16.8 1270 1200
Vinyl chloride ug/L 1000 125 60-140116 8 301000<20.4 1250 1160
Xylene (Total)ug/L 3000 101 60-14085 5 303000613091508660
1,2-Dichloroethane-d4 (S)%93 70-13098
4-Bromofluorobenzene (S)%105 70-13098
Toluene-d8 (S)%99 70-13097
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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[phone]
Page 22 of 27
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
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.
LABORATORIES
Pace Analytical Services - CharlottePASI-C
ANALYTE QUALIFIERS
Analyte was detected in the associated method blank.B
Common Laboratory Contaminant.C9
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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Huntersville, NC 28078
[phone]
Page 23 of 27
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92451820
Childers & Sons-Revised Report
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92451820001 507450FB-1 SM 6200B
92451820002 507868MW-2 SM 6200B
92451820003 507450MW-3 SM 6200B
92451820004 507868MW-4 SM 6200B
92451820005 507868MW-6 SM 6200B
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/18/2019 08:48 AM
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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 24 of 27
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