MO-1047_11356_CA_LTRRPT_20230615

7606 Whitehall Executive Center Drive
Suite 800
Charlotte, NC 28273
Tel: [phone]
Fax: [phone]
www.atcassociates.com
N.C. Engineering License No. C-1598
1
June 15, 2023
Mr. Scott Ryals, P.E.
North Carolina Department of Environmental Quality
Division of Waste Management – Underground Storage Tank Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Re: Groundwater Sampling Event Letter Report
Keeter Ford Motors
1775 East Dixon Boulevard
Shelby, Cleveland County, North Carolina 28152
NCDEQ Incident #11356
ATC Project #STL1135601
Task Authorization: TA-01
Dear Mr. Ryals:
ATC Associates of North Carolina, P.C. (ATC) submits this Groundwater Sampling Event Letter
Report for the Keeter Ford Motors site, located at 1775 East Dixon Boulevard, Shelby, Cleveland
County, North Carolina. The work was performed in accordance with the Apirl 11, 2023, Task
Authorization (TA-01) authorized by the Trust Fund Branch of the Underground Storage Tank
(UST) Section, Division of Waste Management (DWM), North Carolina Department of
Environmental Quality (NCDEQ). The work was performed as part of the State Lead Contract
#N122019A between the NCDEQ and ATC.
On May 15, 2023, ATC purged and sampled monitoring well DMW-1 and submitted the sample
to Waypoint Analytical (A North Carolina certified laboratory) for analysis using Standard Method
6200B. A groundwater elevation contour map map depicting the groundwater elevations from
May 6, 2022 along with the locations of monitoring wells are indicated on the attached Figure 1.
Monitoring well construction data and groundwater elevations are presented in Table 1. The
recent and historical groundwater quality data are presented in Table 2 and Table 3,
respectively. Field notes from the May 15, 2023 groundwater sampling event are presented in
Appendix A. The analytical report is included as Appendix B.
The current risk classification for the incident is Intermediate, due to the prior exceedances of the
Gross Contamination Levels (GCLs), particulary for benzene in well DMW-1. The last three
sampling events on August 8, 2022, December 12, 2022, and May 15, 2023 indicated benzene
concentrations of 3,830 micrograms per liter (µg/L), 3,100 µg/L, and 3,420 µg/L, respectively.
The results indicate stabilized benzene concentrations less than the GCL of 5,000 µg/L. ATC
recommends closing the incident with a Notice of Residual Petroleum (NORP) with a
groundwater restriction and the issuance of a Notice of No Further Action. Based on analytical
results for soil samples collected from the sidewalls and base of a soil excavation in 1997,
petroleum contaminant concentrations did not exceed the Soil-to-Groundwater or Residential
Maximum Soil Contaminant Concentrations. Thus, a soil restriction on the property does not
appear to be needed for the NORP.
Groundwater Sampling Event Letter Report June 15, 2023
Keeter Ford Motors, NCDEQ Incident #11356 ATC Project #STL1135601

2

If you have any questions or require additional information, please contact our office at (704)
529-3200.

Sincerely,

ATC Associates of North Carolina, P.C.

Vanessa Hunter Al Quarles, P.G.
Staff Scientist Senior Project Manager

Attachments:
Figure 1 – Groundwater Elevation Contour Map
Table 1 – Monnitoring Well Construction and Groundwater Elevation Data
Table 2 – Recent Monitoring Well Analytical Results
Table 3 – Historical Monitoring Well Analytical Results
Appendix A – Field Notes
Appendix B – Laboratory Analytical Report
Groundwater Sampling Event Letter Report September 28, 2022
Keeter Ford Motors, NCDEQ Incident #11356 ATC Project #SLC1135603

FIGURE
EAST DIXON BOULEVARDSOUTH PO
S
T

R
O
A
D
SCALE: 1" = 40'40010203040NLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEDMW-1DEEP MONITORING WELLWell IdentificationMW-1MONITORING WELLWell IdentificationABANDONED/DESTROYEDMW-7MW-2RW-2RW-4MW-10RW-1MW-1AMW-3RW-3MW-6MW-9MW-1MW-5MW-8DMW-1MW-4FORMERDISPENSERISLANDFORMER USTsDMW-2RW-1RECOVERY WELLWell IdentificationMW-278.59MONITORING WELLWell IdentificationRelative Groundwater Elevation (ft)78.5GROUNDWATER ELEVATION CONTOUR(DASHED WHERE INFERRED)GROUNDWATER FLOW DIRECTION78.4078.8778.5978.5377.1577.8578.8978.578.077.5Figure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2022\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\KEETER FORD\SLC1135602-POT.DWG, FIG4
GROUNDWATER ELEVATION CONTOUR MAP06/09/2022SEE LOWER LEFTKEETER FORD
1775 EAST DIXON BOULEVARD
SHELBY, NORTH CAROLINA
SLC1135602AS SHOWNDH
NF1NOTES:
1. Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
2. Groundwater elevations measured May 6, 2022.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
Groundwater Sampling Event Letter Report September 28, 2022
Keeter Ford Motors, NCDEQ Incident #11356 ATC Project #SLC1135603

TABLES
TABLE 1
MONITORING WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
Keeter Ford
1775 East Dixon Boulevard
Shelby, Cleveland County, North Carolina
NCDEQ Incident #11356
Well ID Date
Installed
Well
Casing
Diameter
(in)
Well
Depth
(ft-bgs)
Screen
Interval
(ft-toc)
Top of
Casing
Elevation
(ft)
Date
Measured
Depth to
Groundwater
(ft-toc)
Groundwater
Elevation
(ft)
04/28/14 23.01 76.28
10/30/14 23.60 75.69
12/04/15 23.37 75.92
10/17/17 23.78 75.51
12/21/18 20.60 78.69
04/28/20 19.10 80.19
05/06/22 21.44 77.85
04/28/14 23.02 75.96
10/30/14 23.35 75.63
12/04/15 23.36 75.62
10/17/17 23.73 75.25
12/21/18 21.26 77.72
04/28/20 18.98 80.00
05/06/22 20.39 78.59
04/28/14 23.38 76.30
10/30/14 23.73 75.95
12/04/15 23.82 75.86
10/17/17 25.05 74.63
12/21/18 21.82 77.86
04/28/20 19.47 80.21
05/06/22 20.81 78.87
04/28/14 23.44 75.94
10/30/14 23.80 75.58
12/04/15 23.85 75.53
05/06/22 20.98 78.40
04/28/14 22.10 75.98
10/30/14 22.50 75.58
12/04/15 22.44 75.64
10/17/17 23.82 74.26
12/21/18 19.30 78.78
04/28/20 18.07 80.01
05/06/22 19.55 78.53
04/28/14 21.54 74.90
10/30/14 22.61 73.83
12/04/15 21.76 74.68
10/17/17 22.92 73.52
12/21/18 19.24 77.20
04/28/20 17.48 78.96
05/06/22 19.29 77.15
2.0 30.0
15.0 - 30.0 99.29
99.68
98.08
15.0 - 30.0
15.0 - 30.0
MW-1A 7/28/1997 2.0 30.0
2.0 30.0MW-7 1/24/1996
MW-2 6/22/1995 2.0 30.0 15.0 - 30.0 98.98
MW-3 6/22/1995
MW-6 1/24/1996 2.0 30.0 15.0 - 30.0 99.38
MW-9 12/5/1996 2.0 30.0 15.0 - 30.0 96.44
Page 1 of 3
TABLE 1
MONITORING WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
Keeter Ford
1775 East Dixon Boulevard
Shelby, Cleveland County, North Carolina
NCDEQ Incident #11356
Well ID Date
Installed
Well
Casing
Diameter
(in)
Well
Depth
(ft-bgs)
Screen
Interval
(ft-toc)
Top of
Casing
Elevation
(ft)
Date
Measured
Depth to
Groundwater
(ft-toc)
Groundwater
Elevation
(ft)
04/28/14 23.47 76.36
10/30/14 23.89 75.94
12/04/15 23.93 75.90
10/17/17 24.32 75.51
12/21/18 21.71 78.12
04/28/20 19.61 80.22
05/06/22 20.94 78.89
04/28/14 23.66 75.53
10/30/14 23.80 75.39
12/04/15 23.57 75.62
09/29/16 23.77 75.42
10/17/17 24.10 75.09
05/21/18 23.45 75.74
06/13/18 23.10 76.09
11/26/18 22.65 76.54
12/21/18 21.20 77.99
04/28/20 20.58 78.61
01/27/21 18.49 80.70
05/06/22 20.78 78.41
08/08/22 21.91 77.28
12/12/22 22.60 76.59
05/15/23 21.00 78.19
01/27/21 18.13 80.88
05/06/22 21.49 77.52
04/28/14 22.42 76.35
10/30/14 23.10 75.67
12/04/15 22.82 75.95
09/29/16 23.08 75.69
10/17/17 23.25 75.52
12/21/18 20.41 78.36
09/04/19 21.70 77.07
04/28/20 18.55 80.22
05/06/22 20.00 78.77
04/28/14 22.85 76.22
10/30/14 23.21 75.86
12/04/15 23.20 75.87
10/17/17 23.48 75.59
12/21/18 21.10 77.97
04/28/20 18.77 80.30
04/28/14 23.38 76.37
10/30/14 23.78 75.97
12/04/15 23.85 75.90
10/17/17 23.90 75.85
12/21/18 21.49 78.26
04/28/20 19.72 80.03
99.83
6.0 45.0 15.0 - 45.0RW-1 98.77
68.0 - 73.0 99.01
15.0 - 30.0
2.0 73.0
7/28/1997 2.0
47.0 - 52.0
99.075/6/2002 50.0
99.755/7/2002
99.19
30.0
52.0
RW-2
5/6/2002
DMW-2 1/14/2021
MW-10
20.0 - 50.0
DMW-1 1/25/1996 2.0
50.0
6.0
RW-3 6.0
20.0 - 50.0
Page 2 of 3
TABLE 1
MONITORING WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
Keeter Ford
1775 East Dixon Boulevard
Shelby, Cleveland County, North Carolina
NCDEQ Incident #11356
Well ID Date
Installed
Well
Casing
Diameter
(in)
Well
Depth
(ft-bgs)
Screen
Interval
(ft-toc)
Top of
Casing
Elevation
(ft)
Date
Measured
Depth to
Groundwater
(ft-toc)
Groundwater
Elevation
(ft)
04/28/14 23.60 76.26
10/30/14 23.87 75.99
12/04/15 24.00 75.86
10/17/17 24.44 75.42
12/21/18 21.79 78.07
04/28/20 19.89 79.97
Notes:
in = inches
ft = feet
ft-toc = feet below top of casing
ft-bgs = feet below ground surface
1/8/2003 6.0 50.0 20.0 - 50.0 99.86RW-4
Page 3 of 3
TABLE 2RECENT MONITORING WELL ANALYTICAL RESULTSKeeter Ford 1775 East Dixon BoulevardShelby, Cleveland County, North Carolina NCDEQ Incident #11356Well IDDate CollectedBenzeneTolueneEthylbenzeneXylene (Total)1,2-Dibromoethane1,2-DichloroethaneDi-Isopropyl EtherMethyl tert-butyl etherNaphthalene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenen-Butylbenzenesec-Butyl benzeneIsopropylbenzenen-Propylbenzene1 600 600 500 0.02 0.4 70 20 6 400 400 70 70 70 705,000260,00080,00050,0005040070,00020,0006,00028,50024,1005,9008,80030,50026,100DMW-1 5/15/20233,420<20.0 21.2 157.1 <20.0119 220 4,810 63.9J49.5 <20.0 <20.0 <20.0 <20.0 <20.0Notes:1) 15A NCAC 02L .0202 Groundwater Quality Standards (2L Standards).2) NCDEQ Division of Waste Management (DWM) Gross Contamination Levels (GCLs).Only constituents detected above the reporting limit are shownConcentrations are reported in micrograms per liter (µg/L)Concentrations in bold exceed the 2L StandardConcentrations in bold and underlined exceed the GCLJ = estimated concentration below the laboratory reporting limit NE = Not Established2L (ug/l)GCL (ug/l) Page 1 of 1
TABLE 3HISTORICAL MONITORING WELL ANALYTICAL RESULTSKeeter Ford 1775 East Dixon BoulevardShelby, Cleveland County, North Carolina NCDEQ Incident #11356Well IDDate CollectedBenzeneTolueneEthylbenzeneXylenes (total)tert-Amyl Alcoholn-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-DichloroethaneDiisopropyl etherEthanolIsopropylbenzeneMethyl-tert-butyl EtherNaphthalenen-Propylbenzene1,2,4-Trichlorobenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 40 70 70 0.02 0.4 70 4,000 70 20 6 70 70 400 4005,000 260,000 80,000 50,000 40,000 5,900 70,000 50 400 70,0004,000,00030,500 20,000 6,000 26,100 24,500 28,500 24,10004/28/1469.2ND 7.2 45.0NA NA NA NA38.167.7NA NA4,730 NDNA NANA NA10/30/1422.8ND ND 21.0NA NA NA NA19.827.8NA NA2,130 NDNA NANA NA12/04/1518.2ND ND 40.7NA NA NA NA19.525.0NA NA1,660 NDNA NANA NA10/17/179.2<5.02.2 J 20.7NA <5.0 <5.0 NA <108.3NA <5.070015.0<5.0 NA17.0 8.312/21/1811.0110 28 270NA0.60 J<1.0 NA <1.00.68 JNA1.1 13.032.02.7NA47.0 12.004/28/201.4<1.0 <1.01.68 JNA <1.0 <10 NA <1.01.4<100 <1.089.0<1.0 <1.0 NA0.44 J<1.05/6/20225.300.704 0.304 J 2.90NA <0.180 <0.2200.339 J 4.215.93<42.0 <0.180444<0.470 <0.190 <0.3800.212 J 0.210 J04/28/144.580.0 2551,769NA NA NA NAND NDNA NAND NDNA NA NA NA10/30/14 ND 2.0 11.0 41NA NA NA NAND NDNA NAND NDNA NA NA NA12/04/15 ND 1.2 10.9 33NA NA NA NAND NDNA NAND NDNA NA NA NA10/17/170.47 J4.8 47.0 182NA2.8<0.50NA<1.0 <0.50 NA5.6 0.40 J25.017.0NA110 12012/21/185.960.0 2701,320NA35.0<5.0 NA <5.0 <5.0 NA28.0<5.0100 83.0NA57037004/28/20<0.50 <0.500.19 J 2.49NA0.27 J<0.50 NA <0.50 <0.50 <500.34 J<0.500.93 0.50NA4.7 4.904/28/1465.6 1,4204313,122NA NA NA NAND 2.1NA NA22 269NA NA NA NA10/30/147.8 76.142.9 346NA NA NA NAND 0.6NA NA7.319.5NA NA NA NA12/04/156.5 15998.4500NA NA NA NAND NDNA NA3.143.3NA NA NA NA10/17/174.1 J 3102902,180NA8.0<5.0 NA <1.0 <5.0 NA18.0 4.6 J18053.0NA55014012/21/181.4 1803401,950NA <0.50 <0.50 NA <5.0 <0.50 NA21.0<0.5016056.0NA50014004/28/20<5.0270 640 4,500NA32.0 5.1NA <0.50 <500 <5.041.0<5.0460 140NA1,40033004/28/14 ND ND ND NDNA NA NA NAND NDNA NAND NDNA NA NA NA10/30/14NDND ND NDNA NA NA NAND NDNA NAND NDNA NA NA NA12/04/15 ND ND ND NDNA NA NA NAND NDNA NAND NDNA NA NA NA04/28/14 ND ND ND NDNA NA NA NAND NDNA NAND NDNA NA NA NA10/30/14 ND ND ND NDNA NA NA NAND NDNA NAND NDNA NA NA NA12/04/15 ND ND ND NDNA NA NA NAND NDNA NAND NDNA NA NA NA10/17/17<0.50 <0.50 <0.50 <1.50 NA <0.50 <0.50 NA <1.0 <0.50 NA <0.50 <0.50 <0.50 <0.50 NA <0.50 <0.5012/21/18 0.9334.014103.0NA <0.50 <0.50 NA <0.50 <0.50 NA0.86<0.503.1 J 2.8NA24 1004/28/20<0.50 <0.50 <0.50 <1.50 NA <0.50 <0.50 NA <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 NA <0.50 <0.502L Standard (1)GCL Standard (2)MW-1AMW-2MW-3MW-6MW-7Page 1 of 4
TABLE 3HISTORICAL MONITORING WELL ANALYTICAL RESULTSKeeter Ford 1775 East Dixon BoulevardShelby, Cleveland County, North Carolina NCDEQ Incident #11356Well IDDate CollectedBenzeneTolueneEthylbenzeneXylenes (total)tert-Amyl Alcoholn-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-DichloroethaneDiisopropyl etherEthanolIsopropylbenzeneMethyl-tert-butyl EtherNaphthalenen-Propylbenzene1,2,4-Trichlorobenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 40 70 70 0.02 0.4 70 4,000 70 20 6 70 70 400 4005,000 260,000 80,000 50,000 40,000 5,900 70,000 50 400 70,0004,000,00030,500 20,000 6,000 26,100 24,500 28,500 24,1002L Standard (1)GCL Standard (2)04/28/14 ND ND ND NDNA NA NA NAND NDNA NAND ND NDNA NA NA10/30/14 ND ND ND NDNA NA NA NAND NDNA NAND ND NDNA NA NA12/04/15 ND ND ND NDNA NA NA NAND NDNA NAND ND NDNA NA NA10/17/17<0.50 <0.50 <0.50 <1.50 NA <0.50 <0.50 NA <1.0 <0.50 NA <0.50 <0.50 <0.50 <0.50 NA <0.50 <0.5012/21/18<0.50 <0.50 <0.50 <1.50 NA <0.50 <0.50 NA <0.50 <0.50 NA <0.50 <0.50 <0.50 <0.50 NA <0.50 <0.5004/28/20<0.50 <0.50 <0.50 <1.50 NA <0.50 <0.50 NA <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 NA <0.50 <0.5004/28/141,160 4,000 908 14,070NA NA NA NAND NDNA NA627 1,570NA NA NA NA10/30/14228 2,610 734 14,130NA NA NA NAND NDNA NA342 1,540NA NA NA NA12/04/15485 1,960 1,120 18,670NA NA NA NAND NDNA NA298 1,410NA NA NA NA10/17/17810 1,300 1,900 19,800NA <120 <120 NA <250 <120 NA82 J170 1,300 220NA3,400 98012/21/18410 2,200 1,100 16,000NA62 J<100 NA <100 <100 NA44 J94 J 1,100 120NA2,800 75004/28/2062.046.0 1801,180NA2.6 J<5.0 NA <100 <5.0 <5007.8 1617019.0NA390 14004/28/145,080ND 139740NA NA NA NA84.9 159NA NA2,890 143NA NA NA NA10/30/146,540ND 3231,247NA NA NA NA84.4 162NA NA2,790 130NA NA NA NA12/04/158,940ND 3171,408NA NA NA NA121 223NA NA3,880 141NA NA NA NA09/29/168,580ND 2481,283NA NA NA NA120 227NA NA4,070 179NA NA NA NA10/17/1712,000<100650 1,750NA <100 <100 NA <200330NA44 J9,200 400 74 JNA58028 J05/21/1811,000<504501,830NA <5054.0NA170 350NA48 J6,600 400 J 87.0NA62019 J06/13/188,60024 J 3201,500NA <25 <25 NA74.0 200NA29.03,200 140 J50.0NA380 9.5 J11/26/1812,00018 J 4302,350NA10 J<25 NA <25220NA47.05,800 170 80.0NA5707.0 J12/21/188,60072 J 3801,900NA <100 <100 NA <100200NA30 J3,700 18062 JNA460<10004/28/2014,000<502402,000NA <5046 JNA <50340<5,00046 J7,300 19066.0NA580<5001/27/217,930<25.01511,070 13,200<25.0 <25.0 <25.0131 258NA24.3 J5,910 14430.7<100277<25.05/6/202248.60.537 0.742 149NA <0.180 <0.2202.17 93.0 180<42.0 <0.1804,0105.76<0.190 <0.38013.3 0.213 J8/8/20223,8302.68 19.1852NA0.249 J<0.5002.08 96.6 265NA1.885,310 65.91.91 207 3.02<0.50012/12/223,100<2019.1J 35612,600<20.0 <20.0 <20.0106 180<8,000 <20.03,780 120<20.0 <80.099.5<20.005/15/233,420<20.021.2 157.1NA <20.0 <20.0 <20.0119 220NA <20.04,800 63.9J<20.0 <20.049.5<20.0MW-10DMW-1MW-9Page 2 of 4
TABLE 3HISTORICAL MONITORING WELL ANALYTICAL RESULTSKeeter Ford 1775 East Dixon BoulevardShelby, Cleveland County, North Carolina NCDEQ Incident #11356Well IDDate CollectedBenzeneTolueneEthylbenzeneXylenes (total)tert-Amyl Alcoholn-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-DichloroethaneDiisopropyl etherEthanolIsopropylbenzeneMethyl-tert-butyl EtherNaphthalenen-Propylbenzene1,2,4-Trichlorobenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 40 70 70 0.02 0.4 70 4,000 70 20 6 70 70 400 4005,000 260,000 80,000 50,000 40,000 5,900 70,000 50 400 70,0004,000,00030,500 20,000 6,000 26,100 24,500 28,500 24,1002L Standard (1)GCL Standard (2)01/27/214.9 J5.0 J 4.7 J 8.5 J778 J6.2 4.9 J<5.017.522.7NA4.1 J985<20.04.2 J 6.1 J 4.7 J 4.6 J5/6/2022 0.653 0.372 J<0.1700.886 JNA <0.180 <0.220<0.2003.713.84<42.0 <0.180159<0.470 <0.190 <0.380 <0.190 <0.18004/28/147,500117 5172,568NA NA NA NA141 266NA NA9,900NDNA NA NA NA10/30/147,74075.2672 3,048NA NA NA NA144 254NA NA10,500NDNA NA NA NA12/04/154,740ND 3921,966NA NA NA NA117 198NA NA9,770NDNA NA NA NA09/29/162,70057.4 163821NA NA NA NA72.3 136NA NA6,140 106NA NA NA NA10/17/17690<1238.0 110NA <12 <12 NA <2548.0NA3.5 J2,700 79.0<12 NA49.0 22.012/21/183208.5 J 17.0 60NA <12 <12 NA <1242.0NA <121,600<1203.5 JNA17.0 13.009/04/19<0.50 <0.50 <0.50 <1.50 NA <0.50 <0.50 NA1.1 1.4<100 <0.5088.0<0.50 <0.50 NA <0.50 <0.5004/28/207.0<2.0 <2.01.3 JNA <2.0 <2.0 NA <2.05.0<200 <2.0230<2.0 <2.0 NA0.80 J 0.64 J5/6/2022<0.1800.282 J 0.640 0.584 JNA <0.180 <0.220 <0.20014.727.8<42.0 <0.1801,390<0.470 <0.190 <0.380 <0.1900.270 J04/28/14580 9,120 1,640 12,120NA NA NA NAND NDNA NA152 692NA NA NA NA10/30/14736 12,000 2,250 16,310NA NA NA NA144NDNA NA132NDNA NA NA NA12/04/15466 10,800 2,180 16,750NA NA NA NAND NDNA NA206 620NA NA NA NA10/17/17550 11,000 2,600 16,300NA36 J<50NA<100 <50 NA <5099.0 670 300NA2,500 72012/21/18250 7,300 1,800 12,300NA63<50 NA <50 <50 NA75.0 87.0 460 J 210NA1,800 75004/28/20250 4,400 1,100 8,400NA37 J 51.0NA <50 <5010,00041 J180 280 120NA1,300 48004/28/1461.0 4,290 1,980 14,370NA NA NA NAND NDNA NAND896NA NA NA NA10/30/1436.0 3,610 2,090 14,940NA NA NA NAND NDNA NA397 1,060NA NA NA NA12/04/1525.7 4,190 2,640 18,370NA NA NA NAND NDNA NAND1,140NA NA NA NA10/17/1717 J 1,500 2,200 17,200NA35<25 NA <50 <25 NA120<25990 350NA3,300 93012/21/18<50730 2,300 17,500NA85<50 NA <50 <50 NA120<50720 350NA3,100 91004/28/20<502601,600 12,100NA8349 JNA <50 <50 <5,000110<50770 350NA3,300 860RW-2RW-3RW-1DMW-2Page 3 of 4
TABLE 3HISTORICAL MONITORING WELL ANALYTICAL RESULTSKeeter Ford 1775 East Dixon BoulevardShelby, Cleveland County, North Carolina NCDEQ Incident #11356Well IDDate CollectedBenzeneTolueneEthylbenzeneXylenes (total)tert-Amyl Alcoholn-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-DichloroethaneDiisopropyl etherEthanolIsopropylbenzeneMethyl-tert-butyl EtherNaphthalenen-Propylbenzene1,2,4-Trichlorobenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 40 70 70 0.02 0.4 70 4,000 70 20 6 70 70 400 4005,000 260,000 80,000 50,000 40,000 5,900 70,000 50 400 70,0004,000,00030,500 20,000 6,000 26,100 24,500 28,500 24,1002L Standard (1)GCL Standard (2)04/28/141,180 15,900 2,560 19,460NA NA NA NAND NDNA NA278 1,110NA NA NA NA10/30/142,110 14,100 2,400 18,130NA NA NA NAND NDNA NA397 1,150NA NA NA NA12/04/151,240 14,500 2,770 23,750NA NA NA NAND NDNA NA286 1,260NA NA NA NA10/17/172,400 9,900 2,600 17,900NA <100 <100 NA <200 <100 NA110 330 1,700 280NA3,000 81012/21/181,100 12,000 2,500 21,000NA66 J<100 NA <100 <100 NA110 100 760 J 290NA2,900 83004/28/20890 12,000 2,500 24,800NA <100100NA <100 <100 <10,000120 100 1,300 370NA4,300 1,100Notes:1) 15A NCAC 02L .0202 Groundwater Quality Standards (2L Standards) or Interim Maximum Allowable Concentration (IMAC).Grayed values and "<" indicate the compound was below the laboratory reporting limit 2) NCDEQ Division of Waste Management (DWM) Gross Contamination Levels (GCLs). J = estimated concentration below the laboratory reporting limit Only constituents detected above the reporting limit are shownNE = Not EstablishedConcentrations are reported in micrograms per liter (µg/L)NA = Not AnalyzedConcentrations in bold exceed the 2L StandardND = Not DetectedConcentrations in bold and underlined exceed the GCLNS = Not SampledRW-4Page 4 of 4
Groundwater Sampling Event Letter Report June 15, 2023
Keeter Ford Motors, NCDEQ Incident #11356 ATC Project #STL1135601

APPENDIX A

FIELD NOTES
Groundwater Sampling Event Letter Report June 15, 2023
Keeter Ford Motors, NCDEQ Incident #11356 ATC Project #STL1135601

APPENDIX B

LABORATORY ANALYTICAL REPORT
#=CL#
May 23, 2023
LIMS USE: FR - AL QUARLES
LIMS OBJECT ID: 92667454
92667454
Project:
Pace Project No.:
RE:
Al Quarles
ATC Group Services LLC
7606 Whitehall Executive Cente
Suite 800
Charlotte, NC 28273
KEETER FORD STL
Dear Al Quarles:
Enclosed are the analytical results for sample(s) received by the laboratory on May 16, 2023. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Taylor M Cannon
[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 23
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92667454
KEETER FORD STL
Pace Analytical Services Charlotte
South Carolina Laboratory ID: 99006
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Laboratory ID: 99006
South Carolina Certification #: 99006001
South Carolina Drinking Water Cert. #: 99006003
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Louisiana DoH Drinking Water #: LA029
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 23
#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92667454
KEETER FORD STL
Lab ID Sample ID Matrix Date Collected Date Received
92667454001 DMW-1 Water 05/15/23 12:15 05/16/23 08:00
92667454002 FB-1 Water 05/15/23 11:30 05/16/23 08:00
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 23
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92667454
KEETER FORD STL
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92667454001 DMW-1 SM 6200B 63 PASI-CSAS
92667454002 FB-1 SM 6200B 63 PASI-CSAS
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 23
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667454
KEETER FORD STL
Sample: DMW-1 Lab ID: 92667454001 Collected: 05/15/23 12:15 Received: 05/16/23 08:00 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 3420 ug/L 05/22/23 20:41 71-43-220.0 13.8 40
Bromobenzene <11.6 ug/L 05/22/23 20:41 108-86-120.0 11.6 40
Bromochloromethane <18.7 ug/L 05/22/23 20:41 74-97-520.0 18.7 40
Bromodichloromethane <12.3 ug/L 05/22/23 20:41 75-27-420.0 12.3 40
Bromoform <13.6 ug/L 05/22/23 20:41 75-25-220.0 13.6 40
Bromomethane <66.4 ug/L 05/22/23 20:41 74-83-9200 66.4 40
n-Butylbenzene <19.6 ug/L 05/22/23 20:41 104-51-820.0 19.6 40
sec-Butylbenzene <16.0 ug/L 05/22/23 20:41 135-98-820.0 16.0 40
tert-Butylbenzene <12.9 ug/L 05/22/23 20:41 98-06-620.0 12.9 40
Carbon tetrachloride <13.3 ug/L 05/22/23 20:41 56-23-520.0 13.3 40
Chlorobenzene <11.4 ug/L 05/22/23 20:41 108-90-720.0 11.4 40
Chloroethane <26.0 ug/L 05/22/23 20:41 75-00-3 L140.0 26.0 40
Chloroform <17.2 ug/L 05/22/23 20:41 67-66-320.0 17.2 40
Chloromethane <21.6 ug/L 05/22/23 20:41 74-87-3 L140.0 21.6 40
2-Chlorotoluene <12.8 ug/L 05/22/23 20:41 95-49-820.0 12.8 40
4-Chlorotoluene <13.0 ug/L 05/22/23 20:41 106-43-420.0 13.0 40
1,2-Dibromo-3-chloropropane <13.6 ug/L 05/22/23 20:41 96-12-840.0 13.6 40
Dibromochloromethane <14.4 ug/L 05/22/23 20:41 124-48-120.0 14.4 40
1,2-Dibromoethane (EDB)<10.9 ug/L 05/22/23 20:41 106-93-420.0 10.9 40
Dibromomethane <15.8 ug/L 05/22/23 20:41 74-95-320.0 15.8 40
1,2-Dichlorobenzene <13.6 ug/L 05/22/23 20:41 95-50-120.0 13.6 40
1,3-Dichlorobenzene <13.6 ug/L 05/22/23 20:41 541-73-120.0 13.6 40
1,4-Dichlorobenzene <13.3 ug/L 05/22/23 20:41 106-46-720.0 13.3 40
Dichlorodifluoromethane <13.8 ug/L 05/22/23 20:41 75-71-8 IH,L120.0 13.8 40
1,1-Dichloroethane <14.7 ug/L 05/22/23 20:41 75-34-320.0 14.7 40
1,2-Dichloroethane 119 ug/L 05/22/23 20:41 107-06-220.0 12.9 40
1,1-Dichloroethene <13.9 ug/L 05/22/23 20:41 75-35-420.0 13.9 40
cis-1,2-Dichloroethene <15.4 ug/L 05/22/23 20:41 156-59-220.0 15.4 40
trans-1,2-Dichloroethene <15.8 ug/L 05/22/23 20:41 156-60-520.0 15.8 40
1,2-Dichloropropane <14.2 ug/L 05/22/23 20:41 78-87-520.0 14.2 40
1,3-Dichloropropane <11.4 ug/L 05/22/23 20:41 142-28-920.0 11.4 40
2,2-Dichloropropane <15.5 ug/L 05/22/23 20:41 594-20-720.0 15.5 40
1,1-Dichloropropene <17.1 ug/L 05/22/23 20:41 563-58-620.0 17.1 40
cis-1,3-Dichloropropene <14.6 ug/L 05/22/23 20:41 10061-01-520.0 14.6 40
trans-1,3-Dichloropropene <14.5 ug/L 05/22/23 20:41 10061-02-620.0 14.5 40
Diisopropyl ether 220 ug/L 05/22/23 20:41 108-20-320.0 12.3 40
Ethylbenzene 21.2 ug/L 05/22/23 20:41 100-41-420.0 12.2 40
Hexachloro-1,3-butadiene <61.2 ug/L 05/22/23 20:41 87-68-380.0 61.2 40
Isopropylbenzene (Cumene)<13.3 ug/L 05/22/23 20:41 98-82-820.0 13.3 40
Methylene Chloride <78.0 ug/L 05/22/23 20:41 75-09-280.0 78.0 40
Methyl-tert-butyl ether 4810 ug/L 05/22/23 20:41 1634-04-420.0 16.9 40
Naphthalene 63.9J ug/L 05/22/23 20:41 91-20-380.0 25.8 40
n-Propylbenzene <13.6 ug/L 05/22/23 20:41 103-65-120.0 13.6 40
Styrene <11.7 ug/L 05/22/23 20:41 100-42-520.0 11.7 40
1,1,1,2-Tetrachloroethane <12.4 ug/L 05/22/23 20:41 630-20-620.0 12.4 40
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 23
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667454
KEETER FORD STL
Sample: DMW-1 Lab ID: 92667454001 Collected: 05/15/23 12:15 Received: 05/16/23 08:00 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane <9.0 ug/L 05/22/23 20:41 79-34-520.0 9.0 40
Tetrachloroethene <11.7 ug/L 05/22/23 20:41 127-18-420.0 11.7 40
Toluene <9.6 ug/L 05/22/23 20:41 108-88-320.0 9.6 40
1,2,3-Trichlorobenzene <32.2 ug/L 05/22/23 20:41 87-61-680.0 32.2 40
1,2,4-Trichlorobenzene <25.6 ug/L 05/22/23 20:41 120-82-180.0 25.6 40
1,1,1-Trichloroethane <13.3 ug/L 05/22/23 20:41 71-55-620.0 13.3 40
1,1,2-Trichloroethane <13.0 ug/L 05/22/23 20:41 79-00-520.0 13.0 40
Trichloroethene <15.3 ug/L 05/22/23 20:41 79-01-620.0 15.3 40
Trichlorofluoromethane <11.9 ug/L 05/22/23 20:41 75-69-440.0 11.9 40
1,2,3-Trichloropropane <10.4 ug/L 05/22/23 20:41 96-18-420.0 10.4 40
1,2,4-Trimethylbenzene 49.5 ug/L 05/22/23 20:41 95-63-620.0 19.8 40
1,3,5-Trimethylbenzene <13.3 ug/L 05/22/23 20:41 108-67-820.0 13.3 40
Vinyl chloride <15.4 ug/L 05/22/23 20:41 75-01-440.0 15.4 40
m&p-Xylene 108 ug/L 05/22/23 20:41 179601-23-140.0 28.4 40
o-Xylene 49.1 ug/L 05/22/23 20:41 95-47-620.0 13.5 40
Surrogates
1,2-Dichloroethane-d4 (S)116 %05/22/23 20:41 17060-07-070-130 40
4-Bromofluorobenzene (S)97 %05/22/23 20:41 460-00-470-130 40
Toluene-d8 (S)101 %05/22/23 20:41 2037-26-570-130 40
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 23
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667454
KEETER FORD STL
Sample: FB-1 Lab ID: 92667454002 Collected: 05/15/23 11:30 Received: 05/16/23 08:00 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene <0.34 ug/L 05/21/23 14:49 71-43-20.50 0.34 1
Bromobenzene <0.29 ug/L 05/21/23 14:49 108-86-10.50 0.29 1
Bromochloromethane <0.47 ug/L 05/21/23 14:49 74-97-50.50 0.47 1
Bromodichloromethane <0.31 ug/L 05/21/23 14:49 75-27-40.50 0.31 1
Bromoform <0.34 ug/L 05/21/23 14:49 75-25-20.50 0.34 1
Bromomethane <1.7 ug/L 05/21/23 14:49 74-83-95.0 1.7 1
n-Butylbenzene <0.49 ug/L 05/21/23 14:49 104-51-80.50 0.49 1
sec-Butylbenzene <0.40 ug/L 05/21/23 14:49 135-98-80.50 0.40 1
tert-Butylbenzene <0.32 ug/L 05/21/23 14:49 98-06-60.50 0.32 1
Carbon tetrachloride <0.33 ug/L 05/21/23 14:49 56-23-50.50 0.33 1
Chlorobenzene <0.28 ug/L 05/21/23 14:49 108-90-70.50 0.28 1
Chloroethane <0.65 ug/L 05/21/23 14:49 75-00-31.0 0.65 1
Chloroform <0.43 ug/L 05/21/23 14:49 67-66-30.50 0.43 1
Chloromethane <0.54 ug/L 05/21/23 14:49 74-87-31.0 0.54 1
2-Chlorotoluene <0.32 ug/L 05/21/23 14:49 95-49-80.50 0.32 1
4-Chlorotoluene <0.32 ug/L 05/21/23 14:49 106-43-40.50 0.32 1
1,2-Dibromo-3-chloropropane <0.34 ug/L 05/21/23 14:49 96-12-81.0 0.34 1
Dibromochloromethane <0.36 ug/L 05/21/23 14:49 124-48-10.50 0.36 1
1,2-Dibromoethane (EDB)<0.27 ug/L 05/21/23 14:49 106-93-40.50 0.27 1
Dibromomethane <0.39 ug/L 05/21/23 14:49 74-95-30.50 0.39 1
1,2-Dichlorobenzene <0.34 ug/L 05/21/23 14:49 95-50-10.50 0.34 1
1,3-Dichlorobenzene <0.34 ug/L 05/21/23 14:49 541-73-10.50 0.34 1
1,4-Dichlorobenzene <0.33 ug/L 05/21/23 14:49 106-46-70.50 0.33 1
Dichlorodifluoromethane <0.35 ug/L 05/21/23 14:49 75-71-80.50 0.35 1
1,1-Dichloroethane <0.37 ug/L 05/21/23 14:49 75-34-30.50 0.37 1
1,2-Dichloroethane <0.32 ug/L 05/21/23 14:49 107-06-20.50 0.32 1
1,1-Dichloroethene <0.35 ug/L 05/21/23 14:49 75-35-40.50 0.35 1
cis-1,2-Dichloroethene <0.38 ug/L 05/21/23 14:49 156-59-20.50 0.38 1
trans-1,2-Dichloroethene <0.40 ug/L 05/21/23 14:49 156-60-50.50 0.40 1
1,2-Dichloropropane <0.36 ug/L 05/21/23 14:49 78-87-50.50 0.36 1
1,3-Dichloropropane <0.28 ug/L 05/21/23 14:49 142-28-90.50 0.28 1
2,2-Dichloropropane <0.39 ug/L 05/21/23 14:49 594-20-70.50 0.39 1
1,1-Dichloropropene <0.43 ug/L 05/21/23 14:49 563-58-60.50 0.43 1
cis-1,3-Dichloropropene <0.36 ug/L 05/21/23 14:49 10061-01-50.50 0.36 1
trans-1,3-Dichloropropene <0.36 ug/L 05/21/23 14:49 10061-02-60.50 0.36 1
Diisopropyl ether <0.31 ug/L 05/21/23 14:49 108-20-30.50 0.31 1
Ethylbenzene <0.30 ug/L 05/21/23 14:49 100-41-40.50 0.30 1
Hexachloro-1,3-butadiene <1.5 ug/L 05/21/23 14:49 87-68-32.0 1.5 1
Isopropylbenzene (Cumene)<0.33 ug/L 05/21/23 14:49 98-82-80.50 0.33 1
Methylene Chloride <2.0 ug/L 05/21/23 14:49 75-09-22.0 2.0 1
Methyl-tert-butyl ether <0.42 ug/L 05/21/23 14:49 1634-04-40.50 0.42 1
Naphthalene <0.64 ug/L 05/21/23 14:49 91-20-32.0 0.64 1
n-Propylbenzene <0.34 ug/L 05/21/23 14:49 103-65-10.50 0.34 1
Styrene <0.29 ug/L 05/21/23 14:49 100-42-50.50 0.29 1
1,1,1,2-Tetrachloroethane <0.31 ug/L 05/21/23 14:49 630-20-60.50 0.31 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 23
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92667454
KEETER FORD STL
Sample: FB-1 Lab ID: 92667454002 Collected: 05/15/23 11:30 Received: 05/16/23 08:00 Matrix: Water
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane <0.22 ug/L 05/21/23 14:49 79-34-50.50 0.22 1
Tetrachloroethene <0.29 ug/L 05/21/23 14:49 127-18-40.50 0.29 1
Toluene <0.24 ug/L 05/21/23 14:49 108-88-30.50 0.24 1
1,2,3-Trichlorobenzene <0.81 ug/L 05/21/23 14:49 87-61-62.0 0.81 1
1,2,4-Trichlorobenzene <0.64 ug/L 05/21/23 14:49 120-82-12.0 0.64 1
1,1,1-Trichloroethane <0.33 ug/L 05/21/23 14:49 71-55-60.50 0.33 1
1,1,2-Trichloroethane <0.32 ug/L 05/21/23 14:49 79-00-50.50 0.32 1
Trichloroethene <0.38 ug/L 05/21/23 14:49 79-01-60.50 0.38 1
Trichlorofluoromethane <0.30 ug/L 05/21/23 14:49 75-69-41.0 0.30 1
1,2,3-Trichloropropane <0.26 ug/L 05/21/23 14:49 96-18-40.50 0.26 1
1,2,4-Trimethylbenzene <0.50 ug/L 05/21/23 14:49 95-63-60.50 0.50 1
1,3,5-Trimethylbenzene <0.33 ug/L 05/21/23 14:49 108-67-80.50 0.33 1
Vinyl chloride <0.39 ug/L 05/21/23 14:49 75-01-41.0 0.39 1
m&p-Xylene <0.71 ug/L 05/21/23 14:49 179601-23-11.0 0.71 1
o-Xylene <0.34 ug/L 05/21/23 14:49 95-47-60.50 0.34 1
Surrogates
1,2-Dichloroethane-d4 (S)103 %05/21/23 14:49 17060-07-070-130 1
4-Bromofluorobenzene (S)100 %05/21/23 14:49 460-00-470-130 1
Toluene-d8 (S)105 %05/21/23 14:49 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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:
775916
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples: 92667454002
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4026079
Associated Lab Samples:92667454002
Matrix: Water
AnalyzedMDL
1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 05/21/23 13:550.31
1,1,1-Trichloroethane ug/L <0.33 0.50 05/21/23 13:550.33
1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 05/21/23 13:550.22
1,1,2-Trichloroethane ug/L <0.32 0.50 05/21/23 13:550.32
1,1-Dichloroethane ug/L <0.37 0.50 05/21/23 13:550.37
1,1-Dichloroethene ug/L <0.35 0.50 05/21/23 13:550.35
1,1-Dichloropropene ug/L <0.43 0.50 05/21/23 13:550.43
1,2,3-Trichlorobenzene ug/L <0.81 2.0 05/21/23 13:550.81
1,2,3-Trichloropropane ug/L <0.26 0.50 05/21/23 13:550.26
1,2,4-Trichlorobenzene ug/L <0.64 2.0 05/21/23 13:550.64
1,2,4-Trimethylbenzene ug/L <0.50 0.50 05/21/23 13:550.50
1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 05/21/23 13:550.34
1,2-Dibromoethane (EDB)ug/L <0.27 0.50 05/21/23 13:550.27
1,2-Dichlorobenzene ug/L <0.34 0.50 05/21/23 13:550.34
1,2-Dichloroethane ug/L <0.32 0.50 05/21/23 13:550.32
1,2-Dichloropropane ug/L <0.36 0.50 05/21/23 13:550.36
1,3,5-Trimethylbenzene ug/L <0.33 0.50 05/21/23 13:550.33
1,3-Dichlorobenzene ug/L <0.34 0.50 05/21/23 13:550.34
1,3-Dichloropropane ug/L <0.28 0.50 05/21/23 13:550.28
1,4-Dichlorobenzene ug/L <0.33 0.50 05/21/23 13:550.33
2,2-Dichloropropane ug/L <0.39 0.50 05/21/23 13:550.39
2-Chlorotoluene ug/L <0.32 0.50 05/21/23 13:550.32
4-Chlorotoluene ug/L <0.32 0.50 05/21/23 13:550.32
Benzene ug/L <0.34 0.50 05/21/23 13:550.34
Bromobenzene ug/L <0.29 0.50 05/21/23 13:550.29
Bromochloromethane ug/L <0.47 0.50 05/21/23 13:550.47
Bromodichloromethane ug/L <0.31 0.50 05/21/23 13:550.31
Bromoform ug/L <0.34 0.50 05/21/23 13:550.34
Bromomethane ug/L <1.7 5.0 05/21/23 13:551.7
Carbon tetrachloride ug/L <0.33 0.50 05/21/23 13:550.33
Chlorobenzene ug/L <0.28 0.50 05/21/23 13:550.28
Chloroethane ug/L <0.65 1.0 05/21/23 13:550.65
Chloroform ug/L <0.43 0.50 05/21/23 13:550.43
Chloromethane ug/L <0.54 1.0 05/21/23 13:550.54
cis-1,2-Dichloroethene ug/L <0.38 0.50 05/21/23 13:550.38
cis-1,3-Dichloropropene ug/L <0.36 0.50 05/21/23 13:550.36
Dibromochloromethane ug/L <0.36 0.50 05/21/23 13:550.36
Dibromomethane ug/L <0.39 0.50 05/21/23 13:550.39
Dichlorodifluoromethane ug/L <0.35 0.50 05/21/23 13:550.35
Diisopropyl ether ug/L <0.31 0.50 05/21/23 13:550.31
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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: 4026079
Associated Lab Samples:92667454002
Matrix: Water
AnalyzedMDL
Ethylbenzene ug/L <0.30 0.50 05/21/23 13:550.30
Hexachloro-1,3-butadiene ug/L <1.5 2.0 05/21/23 13:551.5
Isopropylbenzene (Cumene)ug/L <0.33 0.50 05/21/23 13:550.33
m&p-Xylene ug/L <0.71 1.0 05/21/23 13:550.71
Methyl-tert-butyl ether ug/L <0.42 0.50 05/21/23 13:550.42
Methylene Chloride ug/L <2.0 2.0 05/21/23 13:552.0
n-Butylbenzene ug/L <0.49 0.50 05/21/23 13:550.49
n-Propylbenzene ug/L <0.34 0.50 05/21/23 13:550.34
Naphthalene ug/L <0.64 2.0 05/21/23 13:550.64
o-Xylene ug/L <0.34 0.50 05/21/23 13:550.34
sec-Butylbenzene ug/L <0.40 0.50 05/21/23 13:550.40
Styrene ug/L <0.29 0.50 05/21/23 13:550.29
tert-Butylbenzene ug/L <0.32 0.50 05/21/23 13:550.32
Tetrachloroethene ug/L <0.29 0.50 05/21/23 13:550.29
Toluene ug/L <0.24 0.50 05/21/23 13:550.24
trans-1,2-Dichloroethene ug/L <0.40 0.50 05/21/23 13:550.40
trans-1,3-Dichloropropene ug/L <0.36 0.50 05/21/23 13:550.36
Trichloroethene ug/L <0.38 0.50 05/21/23 13:550.38
Trichlorofluoromethane ug/L <0.30 1.0 05/21/23 13:550.30
Vinyl chloride ug/L <0.39 1.0 05/21/23 13:550.39
1,2-Dichloroethane-d4 (S)%99 70-130 05/21/23 13:55
4-Bromofluorobenzene (S)%102 70-130 05/21/23 13:55
Toluene-d8 (S)%104 70-130 05/21/23 13:55
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4026080LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 20.720 103 60-140
1,1,1-Trichloroethane ug/L 21.120 106 60-140
1,1,2,2-Tetrachloroethane ug/L 21.820 109 60-140
1,1,2-Trichloroethane ug/L 21.420 107 60-140
1,1-Dichloroethane ug/L 20.620 103 60-140
1,1-Dichloroethene ug/L 22.720 114 60-140
1,1-Dichloropropene ug/L 21.220 106 60-140
1,2,3-Trichlorobenzene ug/L 24.120 120 60-140
1,2,3-Trichloropropane ug/L 20.920 104 60-140
1,2,4-Trichlorobenzene ug/L 23.320 116 60-140
1,2,4-Trimethylbenzene ug/L 22.120 110 60-140
1,2-Dibromo-3-chloropropane ug/L 22.520 113 60-140
1,2-Dibromoethane (EDB)ug/L 20.820 104 60-140
1,2-Dichlorobenzene ug/L 22.220 111 60-140
1,2-Dichloroethane ug/L 19.920 99 60-140
1,2-Dichloropropane ug/L 21.220 106 60-140
1,3,5-Trimethylbenzene ug/L 21.720 109 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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.
4026080LABORATORY CONTROL SAMPLE:
LCSSpike
1,3-Dichlorobenzene ug/L 22.320 111 60-140
1,3-Dichloropropane ug/L 21.620 108 60-140
1,4-Dichlorobenzene ug/L 21.020 105 60-140
2,2-Dichloropropane ug/L 21.920 110 60-140
2-Chlorotoluene ug/L 21.220 106 60-140
4-Chlorotoluene ug/L 22.220 111 60-140
Benzene ug/L 21.020 105 60-140
Bromobenzene ug/L 21.020 105 60-140
Bromochloromethane ug/L 22.320 111 60-140
Bromodichloromethane ug/L 21.620 108 60-140
Bromoform ug/L 22.520 112 60-140
Bromomethane ug/L 18.720 94 60-140
Carbon tetrachloride ug/L 23.120 116 60-140
Chlorobenzene ug/L 21.820 109 60-140
Chloroethane ug/L 19.320 97 60-140
Chloroform ug/L 21.220 106 60-140
Chloromethane ug/L 18.520 93 60-140
cis-1,2-Dichloroethene ug/L 21.320 106 60-140
cis-1,3-Dichloropropene ug/L 22.220 111 60-140
Dibromochloromethane ug/L 21.420 107 60-140
Dibromomethane ug/L 20.620 103 60-140
Dichlorodifluoromethane ug/L 18.520 93 60-140
Diisopropyl ether ug/L 20.620 103 60-140
Ethylbenzene ug/L 21.620 108 60-140
Hexachloro-1,3-butadiene ug/L 22.920 115 60-140
Isopropylbenzene (Cumene)ug/L 22.020 110 60-140
m&p-Xylene ug/L 42.840 107 60-140
Methyl-tert-butyl ether ug/L 20.220 101 60-140
Methylene Chloride ug/L 20.720 104 60-140
n-Butylbenzene ug/L 22.520 113 60-140
n-Propylbenzene ug/L 21.420 107 60-140
Naphthalene ug/L 24.020 120 60-140
o-Xylene ug/L 20.920 104 60-140
sec-Butylbenzene ug/L 22.620 113 60-140
Styrene ug/L 21.620 108 60-140
tert-Butylbenzene ug/L 18.220 91 60-140
Tetrachloroethene ug/L 21.620 108 60-140
Toluene ug/L 20.520 102 60-140
trans-1,2-Dichloroethene ug/L 21.620 108 60-140
trans-1,3-Dichloropropene ug/L 21.020 105 60-140
Trichloroethene ug/L 21.920 110 60-140
Trichlorofluoromethane ug/L 18.920 95 60-140
Vinyl chloride ug/L 16.420 82 60-140
1,2-Dichloroethane-d4 (S)%100 70-130
4-Bromofluorobenzene (S)%102 70-130
Toluene-d8 (S)%98 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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.
4026081MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667487001
4026082
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L M12010060-1400 3020<0.31 <77.8 <77.8
1,1,1-Trichloroethane ug/L M120060-14025 3020<0.33 <83.0 <83.0
1,1,2,2-Tetrachloroethane ug/L M12055160-140238 3020<0.22 110J <56.2
1,1,2-Trichloroethane ug/L M12018060-14045 3020<0.32 <81.2 <81.2
1,1-Dichloroethane ug/L 20 84 60-14077 3020<0.37 <91.8 <91.8
1,1-Dichloroethene ug/L M12021160-14039 3020<0.35 <87.0 <87.0
1,1-Dichloropropene ug/L M120060-1400 3020<0.43 <107 <107
1,2,3-Trichlorobenzene ug/L M120268060-140839 3020<0.81 536 <202
1,2,3-Trichloropropane ug/L M12047460-140279 3020<0.26 94.7J <65.2
1,2,4-Trichlorobenzene ug/L M120203060-140607 3020<0.64 406J <160
1,2,4-Trimethylbenzene ug/L M120187060-1401460 4 302018402220 2140
1,2-Dibromo-3-
chloropropane ug/L M120121060-1400 3020<0.34 243J <85.0
1,2-Dibromoethane (EDB) ug/L M12023560-14045 3020<0.27 <68.0 <68.0
1,2-Dichlorobenzene ug/L M12081860-140294 3020<0.34 164 <84.8
1,2-Dichloroethane ug/L 20 86 60-14096 30202.0 <80.5 <80.5
1,2-Dichloropropane ug/L M12011560-14039 3020<0.36 <88.8 <88.8
1,3,5-Trimethylbenzene ug/L M120306060-1402680 13 3020<0.33 613 536
1,3-Dichlorobenzene ug/L M12078660-140214 3020<0.34 157 <85.0
1,3-Dichloropropane ug/L M12022360-140104 3020<0.28 <71.0 <71.0
1,4-Dichlorobenzene ug/L M12088160-140302 3020<0.33 176 <83.2
2,2-Dichloropropane ug/L M1205460-14030 3020<0.39 <97.0 <97.0
2-Chlorotoluene ug/L M12021460-1400 3020<0.32 <80.2 <80.2
4-Chlorotoluene ug/L M12067160-140214 3020<0.32 134 <81.0
Benzene ug/L M120-3330 60-140-4470 3 302086908020 7800
Bromobenzene ug/L M12045760-14052 3020<0.29 91.3J <72.5
Bromochloromethane ug/L M120060-14065 3020<0.47 <117 <117
Bromodichloromethane ug/L M1209760-1400 3020<0.31 <76.8 <76.8
Bromoform ug/L M12025160-1400 3020<0.34 <85.2 <85.2
Bromomethane ug/L M12074060-140480 3020<1.7 <415 <415
Carbon tetrachloride ug/L M120060-1400 3020<0.33 <83.2 <83.2
Chlorobenzene ug/L M12030860-140180 3020<0.28 <71.0 <71.0
Chloroethane ug/L M1209260-140183 3020<0.65 <162 <162
Chloroform ug/L M12015260-14081 3020<0.43 <108 <108
Chloromethane ug/L M12035160-140222 30201.6 <135 <135
cis-1,2-Dichloroethene ug/L M1203160-14086 3020<0.38 <96.0 <96.0
cis-1,3-Dichloropropene ug/L M12011360-14059 3020<0.36 <91.2 <91.2
Dibromochloromethane ug/L M1204960-14050 3020<0.36 <89.8 <89.8
Dibromomethane ug/L M1208860-1400 3020<0.39 <98.5 <98.5
Dichlorodifluoromethane ug/L M12014860-14049 3020<0.35 <86.5 <86.5
Diisopropyl ether ug/L M12025760-14037 15 3020269320 276
Ethylbenzene ug/L M120115060-140618 3 302029703200 3100
Hexachloro-1,3-butadiene ug/L M120243060-1401330 3020<1.5 487J <382
Isopropylbenzene(Cumene)ug/L M1,R12058360-140147 45 3020121237 150
m&p-Xylene ug/L M14058060-140205 2 304094309660 9510
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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.
4026081MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667487001
4026082
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Methyl-tert-butyl ether ug/L M120-214 60-140-176 1 3020763720 728
Methylene Chloride ug/L M12012060-1400 3020<2.0 <488 <488
n-Butylbenzene ug/L M1,R120201060-140937 73 3020<0.49 403 187
n-Propylbenzene ug/L M120229060-1401880 20 3020<0.34 458 376
Naphthalene ug/L M1,R120350060-1401800 32 30205411240 900
o-Xylene ug/L M12098460-140209 3 302045904780 4630
sec-Butylbenzene ug/L M120134060-140558 3020<0.40 268 112J
Styrene ug/L M120-322 60-140-577 302014681.6J <73.0
tert-Butylbenzene ug/L M12099160-140266 3020<0.32 198 <80.8
Tetrachloroethene ug/L M12017260-1400 3020<0.29 <73.0 <73.0
Toluene ug/L M120260060-1402290 0 30202910029600 29500
trans-1,2-Dichloroethene ug/L M12017260-14084 3020<0.40 <99.0 <99.0
trans-1,3-Dichloropropene ug/L M12020060-140120 3020<0.36 <90.8 <90.8
Trichloroethene ug/L M120060-1400 3020<0.38 <95.8 <95.8
Trichlorofluoromethane ug/L 20 94 60-14096 3020<0.30 <74.5 <74.5
Vinyl chloride ug/L 20 76 60-14060 3020<0.39 <96.5 <96.5
1,2-Dichloroethane-d4 (S) %102 70-130104
4-Bromofluorobenzene (S) %99 70-13097
Toluene-d8 (S)%105 70-130104
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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:
776133
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples: 92667454001
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4026974
Associated Lab Samples:92667454001
Matrix: Water
AnalyzedMDL
1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 05/22/23 15:190.31
1,1,1-Trichloroethane ug/L <0.33 0.50 05/22/23 15:190.33
1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 05/22/23 15:190.22
1,1,2-Trichloroethane ug/L <0.32 0.50 05/22/23 15:190.32
1,1-Dichloroethane ug/L <0.37 0.50 05/22/23 15:190.37
1,1-Dichloroethene ug/L <0.35 0.50 05/22/23 15:190.35
1,1-Dichloropropene ug/L <0.43 0.50 05/22/23 15:190.43
1,2,3-Trichlorobenzene ug/L <0.81 2.0 05/22/23 15:190.81
1,2,3-Trichloropropane ug/L <0.26 0.50 05/22/23 15:190.26
1,2,4-Trichlorobenzene ug/L <0.64 2.0 05/22/23 15:190.64
1,2,4-Trimethylbenzene ug/L <0.50 0.50 05/22/23 15:190.50
1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 05/22/23 15:190.34
1,2-Dibromoethane (EDB)ug/L <0.27 0.50 05/22/23 15:190.27
1,2-Dichlorobenzene ug/L <0.34 0.50 05/22/23 15:190.34
1,2-Dichloroethane ug/L <0.32 0.50 05/22/23 15:190.32
1,2-Dichloropropane ug/L <0.36 0.50 05/22/23 15:190.36
1,3,5-Trimethylbenzene ug/L <0.33 0.50 05/22/23 15:190.33
1,3-Dichlorobenzene ug/L <0.34 0.50 05/22/23 15:190.34
1,3-Dichloropropane ug/L <0.28 0.50 05/22/23 15:190.28
1,4-Dichlorobenzene ug/L <0.33 0.50 05/22/23 15:190.33
2,2-Dichloropropane ug/L <0.39 0.50 05/22/23 15:190.39
2-Chlorotoluene ug/L <0.32 0.50 05/22/23 15:190.32
4-Chlorotoluene ug/L <0.32 0.50 05/22/23 15:190.32
Benzene ug/L <0.34 0.50 05/22/23 15:190.34
Bromobenzene ug/L <0.29 0.50 05/22/23 15:190.29
Bromochloromethane ug/L <0.47 0.50 05/22/23 15:190.47
Bromodichloromethane ug/L <0.31 0.50 05/22/23 15:190.31
Bromoform ug/L <0.34 0.50 05/22/23 15:190.34
Bromomethane ug/L <1.7 5.0 05/22/23 15:191.7
Carbon tetrachloride ug/L <0.33 0.50 05/22/23 15:190.33
Chlorobenzene ug/L <0.28 0.50 05/22/23 15:190.28
Chloroethane ug/L <0.65 1.0 05/22/23 15:190.65
Chloroform ug/L <0.43 0.50 05/22/23 15:190.43
Chloromethane ug/L <0.54 1.0 05/22/23 15:190.54
cis-1,2-Dichloroethene ug/L <0.38 0.50 05/22/23 15:190.38
cis-1,3-Dichloropropene ug/L <0.36 0.50 05/22/23 15:190.36
Dibromochloromethane ug/L <0.36 0.50 05/22/23 15:190.36
Dibromomethane ug/L <0.39 0.50 05/22/23 15:190.39
Dichlorodifluoromethane ug/L <0.35 0.50 IH05/22/23 15:190.35
Diisopropyl ether ug/L <0.31 0.50 05/22/23 15:190.31
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
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Page 14 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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: 4026974
Associated Lab Samples:92667454001
Matrix: Water
AnalyzedMDL
Ethylbenzene ug/L <0.30 0.50 05/22/23 15:190.30
Hexachloro-1,3-butadiene ug/L <1.5 2.0 05/22/23 15:191.5
Isopropylbenzene (Cumene)ug/L <0.33 0.50 05/22/23 15:190.33
m&p-Xylene ug/L <0.71 1.0 05/22/23 15:190.71
Methyl-tert-butyl ether ug/L <0.42 0.50 05/22/23 15:190.42
Methylene Chloride ug/L <2.0 2.0 05/22/23 15:192.0
n-Butylbenzene ug/L <0.49 0.50 05/22/23 15:190.49
n-Propylbenzene ug/L <0.34 0.50 05/22/23 15:190.34
Naphthalene ug/L <0.64 2.0 05/22/23 15:190.64
o-Xylene ug/L <0.34 0.50 05/22/23 15:190.34
sec-Butylbenzene ug/L <0.40 0.50 05/22/23 15:190.40
Styrene ug/L <0.29 0.50 05/22/23 15:190.29
tert-Butylbenzene ug/L <0.32 0.50 05/22/23 15:190.32
Tetrachloroethene ug/L <0.29 0.50 05/22/23 15:190.29
Toluene ug/L <0.24 0.50 05/22/23 15:190.24
trans-1,2-Dichloroethene ug/L <0.40 0.50 05/22/23 15:190.40
trans-1,3-Dichloropropene ug/L <0.36 0.50 05/22/23 15:190.36
Trichloroethene ug/L <0.38 0.50 05/22/23 15:190.38
Trichlorofluoromethane ug/L <0.30 1.0 05/22/23 15:190.30
Vinyl chloride ug/L <0.39 1.0 05/22/23 15:190.39
1,2-Dichloroethane-d4 (S)%119 70-130 05/22/23 15:19
4-Bromofluorobenzene (S)%97 70-130 05/22/23 15:19
Toluene-d8 (S)%104 70-130 05/22/23 15:19
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4026975LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 20.720 104 60-140
1,1,1-Trichloroethane ug/L 22.720 113 60-140
1,1,2,2-Tetrachloroethane ug/L 22.120 110 60-140
1,1,2-Trichloroethane ug/L 20.620 103 60-140
1,1-Dichloroethane ug/L 25.020 125 60-140
1,1-Dichloroethene ug/L 24.920 124 60-140
1,1-Dichloropropene ug/L 25.720 129 60-140
1,2,3-Trichlorobenzene ug/L 18.920 95 60-140
1,2,3-Trichloropropane ug/L 21.320 106 60-140
1,2,4-Trichlorobenzene ug/L 19.120 95 60-140
1,2,4-Trimethylbenzene ug/L 21.620 108 60-140
1,2-Dibromo-3-chloropropane ug/L 18.920 94 60-140
1,2-Dibromoethane (EDB)ug/L 21.220 106 60-140
1,2-Dichlorobenzene ug/L 19.720 98 60-140
1,2-Dichloroethane ug/L 23.820 119 60-140
1,2-Dichloropropane ug/L 23.220 116 60-140
1,3,5-Trimethylbenzene ug/L 22.120 111 60-140
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
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Page 15 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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.
4026975LABORATORY CONTROL SAMPLE:
LCSSpike
1,3-Dichlorobenzene ug/L 20.820 104 60-140
1,3-Dichloropropane ug/L 22.020 110 60-140
1,4-Dichlorobenzene ug/L 20.020 100 60-140
2,2-Dichloropropane ug/L 24.320 121 60-140
2-Chlorotoluene ug/L 21.920 110 60-140
4-Chlorotoluene ug/L 22.220 111 60-140
Benzene ug/L 22.320 112 60-140
Bromobenzene ug/L 20.120 100 60-140
Bromochloromethane ug/L 21.820 109 60-140
Bromodichloromethane ug/L 20.820 104 60-140
Bromoform ug/L 17.820 89 60-140
Bromomethane ug/L 25.320 126 60-140
Carbon tetrachloride ug/L 19.320 97 60-140
Chlorobenzene ug/L 21.120 106 60-140
Chloroethane ug/L 36.1 L120180 60-140
Chloroform ug/L 24.220 121 60-140
Chloromethane ug/L 28.6 L120143 60-140
cis-1,2-Dichloroethene ug/L 24.320 122 60-140
cis-1,3-Dichloropropene ug/L 21.320 107 60-140
Dibromochloromethane ug/L 20.620 103 60-140
Dibromomethane ug/L 18.820 94 60-140
Dichlorodifluoromethane ug/L 36.4 IH,L120182 60-140
Diisopropyl ether ug/L 22.520 112 60-140
Ethylbenzene ug/L 21.220 106 60-140
Hexachloro-1,3-butadiene ug/L 21.420 107 60-140
Isopropylbenzene (Cumene)ug/L 20.420 102 60-140
m&p-Xylene ug/L 42.540 106 60-140
Methyl-tert-butyl ether ug/L 20.820 104 60-140
Methylene Chloride ug/L 22.320 111 60-140
n-Butylbenzene ug/L 23.620 118 60-140
n-Propylbenzene ug/L 22.220 111 60-140
Naphthalene ug/L 21.520 107 60-140
o-Xylene ug/L 21.020 105 60-140
sec-Butylbenzene ug/L 21.420 107 60-140
Styrene ug/L 21.520 107 60-140
tert-Butylbenzene ug/L 17.420 87 60-140
Tetrachloroethene ug/L 18.820 94 60-140
Toluene ug/L 22.420 112 60-140
trans-1,2-Dichloroethene ug/L 25.820 129 60-140
trans-1,3-Dichloropropene ug/L 20.120 100 60-140
Trichloroethene ug/L 21.120 105 60-140
Trichlorofluoromethane ug/L 23.620 118 60-140
Vinyl chloride ug/L 22.120 111 60-140
1,2-Dichloroethane-d4 (S)%116 70-130
4-Bromofluorobenzene (S)%99 70-130
Toluene-d8 (S)%99 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
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[phone]
Page 16 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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.
4026976MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667432002
4026977
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 137 60-140136 1 3020ND27.5 27.2
1,1,1-Trichloroethane ug/L M12015960-140158 0 3020ND31.7 31.7
1,1,2,2-Tetrachloroethane ug/L M12014960-140151 2 3020ND29.8 30.3
1,1,2-Trichloroethane ug/L 20 138 60-140139 1 3020ND27.6 27.8
1,1-Dichloroethane ug/L M12017660-140174 1 3020ND35.2 34.8
1,1-Dichloroethene ug/L M12017360-140171 2 3020ND34.6 34.1
1,1-Dichloropropene ug/L M12018560-140182 1 3020ND36.9 36.5
1,2,3-Trichlorobenzene ug/L 20 119 60-140123 3 3020ND23.8 24.6
1,2,3-Trichloropropane ug/L M12014360-140145 1 3020ND28.6 28.9
1,2,4-Trichlorobenzene ug/L 20 129 60-140129 0 3020ND25.8 25.9
1,2,4-Trimethylbenzene ug/L M12015260-140150 2 3020ND30.4 29.9
1,2-Dibromo-3-
chloropropane ug/L 20 117 60-140120 3 3020ND23.3 24.0
1,2-Dibromoethane (EDB) ug/L M12014260-140144 2 3020ND28.3 28.8
1,2-Dichlorobenzene ug/L 20 137 60-140137 1 3020ND27.5 27.3
1,2-Dichloroethane ug/L M12016360-140166 2 3020ND32.5 33.2
1,2-Dichloropropane ug/L M12015860-140157 1 3020ND31.6 31.4
1,3,5-Trimethylbenzene ug/L M12015360-140150 2 30200.67 31.2 30.6
1,3-Dichlorobenzene ug/L M12014360-140140 2 3020ND28.5 27.9
1,3-Dichloropropane ug/L M12014860-140148 0 3020ND29.5 29.7
1,4-Dichlorobenzene ug/L 20 136 60-140134 1 3020ND27.1 26.8
2,2-Dichloropropane ug/L M12017560-140173 1 3020ND34.9 34.6
2-Chlorotoluene ug/L M12015760-140154 2 3020ND31.4 30.9
4-Chlorotoluene ug/L M12015460-140152 1 3020ND30.9 30.5
Benzene ug/L M12015360-140150 1 30203.1 33.6 33.1
Bromobenzene ug/L 20 137 60-140136 1 3020ND27.5 27.2
Bromochloromethane ug/L M12015160-140149 1 3020ND30.1 29.8
Bromodichloromethane ug/L 20 133 60-140133 0 3020ND26.6 26.7
Bromoform ug/L 20 103 60-140105 1 3020ND20.7 21.0
Bromomethane ug/L M12015060-140147 3 3020ND30.0 29.3
Carbon tetrachloride ug/L 20 132 60-140130 1 3020ND26.3 26.0
Chlorobenzene ug/L M12014460-140142 1 3020ND28.8 28.4
Chloroethane ug/L M02023560-140230 2 3020ND47.1 46.0
Chloroform ug/L M12016860-140166 1 3020ND33.5 33.1
Chloromethane ug/L M02019060-140190 0 3020ND38.0 37.9
cis-1,2-Dichloroethene ug/L M12017160-140166 3 3020ND34.2 33.3
cis-1,3-Dichloropropene ug/L 20 135 60-140137 2 3020ND27.0 27.5
Dibromochloromethane ug/L 20 127 60-140128 0 3020ND25.5 25.6
Dibromomethane ug/L 20 124 60-140125 1 3020ND24.7 25.0
Dichlorodifluoromethane ug/L IH,M02022860-140227 0 3020ND45.6 45.4
Diisopropyl ether ug/L M12015960-140159 0 30201.2 33.1 32.9
Ethylbenzene ug/L M12014860-140146 2 3020ND29.6 29.1
Hexachloro-1,3-butadiene ug/L 20 134 60-140135 0 3020ND26.8 27.0
Isopropylbenzene(Cumene)ug/L M12014860-140143 4 3020ND29.7 28.6
m&p-Xylene ug/L M14014660-140144 2 30402.1 60.5 59.6
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
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[phone]
Page 17 of 23
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92667454
KEETER FORD STL
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.
4026976MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92667432002
4026977
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Methyl-tert-butyl ether ug/L M12014660-140150 2 302014.5 43.7 44.5
Methylene Chloride ug/L M12015360-140150 2 3020ND30.7 30.0
n-Butylbenzene ug/L M12016960-140164 3 3020ND33.8 32.7
n-Propylbenzene ug/L M12015660-140154 1 3020ND31.2 30.8
Naphthalene ug/L M12014860-140157 5 30208.9 38.6 40.4
o-Xylene ug/L M12014260-140142 0 30203.0 31.4 31.4
sec-Butylbenzene ug/L M12015460-140153 1 3020ND30.7 30.5
Styrene ug/L M12014460-140145 1 3020ND28.7 28.9
tert-Butylbenzene ug/L 20 124 60-140120 3 3020ND24.7 24.0
Tetrachloroethene ug/L 20 127 60-140127 0 3020ND25.4 25.5
Toluene ug/L M12014160-140135 4 30201.1 29.3 28.1
trans-1,2-Dichloroethene ug/L M12018260-140180 1 3020ND36.4 36.0
trans-1,3-Dichloropropene ug/L 20 135 60-140135 0 3020ND27.0 27.1
Trichloroethene ug/L M12014160-140142 0 3020ND28.3 28.4
Trichlorofluoromethane ug/L M12016460-140162 1 3020ND32.8 32.4
Vinyl chloride ug/L M12015360-140150 2 3020ND30.7 30.1
1,2-Dichloroethane-d4 (S) %119 70-130119
4-Bromofluorobenzene (S) %102 70-130103
Toluene-d8 (S)%99 70-13099
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
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Page 18 of 23
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92667454
KEETER FORD STL
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.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
This analyte exceeded secondary source verification criteria high for the initial calibration. The reported results should be
considered an estimated value.IH
Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated
samples may be biased high.L1
Matrix spike recovery and/or matrix spike duplicate recovery was outside laboratory control limits.M0
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
RPD value was outside control limits.R1
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
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Huntersville, NC 28078
[phone]
Page 19 of 23
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92667454
KEETER FORD STL
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92667454001 776133DMW-1 SM 6200B
92667454002 775916FB-1 SM 6200B
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 05/23/2023 01:41 PM
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9800 Kincey Ave. Suite 100
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[phone]
Page 20 of 23
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