RA-613_3831_CA_RPTS_20210922

2725 E. Millbrook Road, Suite 121
Raleigh, NC 27604
Telephone [phone]
www.atcgroupservices.com

ATC Project No. SLC0383102 NCDEQ State Lead Program

September 22, 2021

Mr. Mark Petermann
North Carolina Department of Environmental Quality
Division of Waste Management
Underground Storage Tank Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

Re: Letter Report
Mt. Harmony Grocery
1818 Mt. Harmony Road
Rougemont, Person County, North Carolina
NCDEQ Incident No. 3831

Dear Mr. Petermann:

ATC Associates of North Carolina, P.C. (ATC) is pleased to submit the results of the August 2021 sampling
activities from the groundwater influent and effluent of the PW-3R point of entry (POE) filtration system. PW-3R is
located on the Mt. Harmony Grocery site property located at 1818 Mt. Harmony Road in Rougemont, Person
County, North Carolina. A site topographic map is included as Figure 1 and a site map is included as Figure 2. A
potential receptor survey map is included as Figure 3 and water supply well information is included as Table
1. The activities were performed based on an August 8, 2021 Task Authorization (TA-2) 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 #N122019A
between NCDEQ and ATC.

On August 23, 2021, ATC personnel mobilized to the site to collect groundwater influent and effluent samples from
the PW-3R POE filtration system. ATC also intended to collect a water sample from an outside spigot from the
residential building on the property. However, no outside spigot exists on the building. The samples were collected
in laboratory-supplied, preserved containers; entered into chain of custody control; placed on ice; and shipped to
North Carolina-accredited SGS North America Inc. in Scott, Louisiana and Dayton, New Jersey. The samples
were analyzed by EPA Method 6200B for volatile organic compounds, Method SM4500S2 for hydrogen sulfide
and Sulfide, Method SM2510 for specific conductivity, and Method SM4500H+ for pH. Field notes are included in
Appendix A and the laboratory analytical report is included in Appendix B. The analytical results were compared
to the 2L Standards and Gross Contamination Levels (GCLs). Laboratory analytical results indicated the
following compound above 2L Standards:

 1,2-Dichloroethane: PW-3R Influent [3.2 micrograms per liter (µg/L)]

No other compounds were detected above 2L Standards. No compounds were detected above their respective
GCLs. Detections above laboratory method detection limits (MDL) include toluene and diisopropyl ether (DIPE)
in the PW-3R influent at concentrations of 0.31µg/L and 56.9 µg/L, respectively. No analytes were detected
above their respective laboratory MDL in the PW-3R effluent. Hydrogen sulfide and sulfide were not detected
above the laboratory MDLs in the PW-3R influent or effluent samples. Current and historical water supply well
analytical data are shown in Table 2.

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 laboratory 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

Mt. Harmony Grocery
September 22, 2021

ATC Project No. SLC0383102 NCDEQ State Lead Program

TABLES
TABLE 1
WATER SUPPLY WELL INFORMATION
MT HARMONY GROCERY
1818 MT. HARMONY CHURCH ROAD
ROUGEMONT, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #3831
Well ID Property Owner Well Address Property Owner's
Address Well Use Well Depth Well Screen
Interval
Distance from
Source Area Comments
PW-1 Billy Barber
(336-592-0155)1818 Mt Harmony Church Road 90 Fletcher Ridge Road
Timberlake, NC 27583 Inactive Unknown Unknown 165 feet north Resident as of 8/18/21:
Lori (336-504-3113)
PW-2*Kristi Latta 1850 Mt. Harmony Church Road 1850 Mt. Harmony Church Road
Rougemont, NC 27572 Inactive Unknown Unknown 165 feet south
PW-3R Billy Barber 1818 Mt Harmony Church Road 90 Fletcher Ridge Road
Timberlake, NC 27583 Potable Unknown Unknown 265 feet northwest Supplies water to onsite residence and former store
building.
County of Person
Ray Foushee (County Official)
336-330-2216)
Unknown
Bruce Lynch (Fire Chief)
(336-364-8332)Unknown
WSW-1
Mt. Harmony Baptist Church
Pete Thomas
(336-504-4228)
[e-mail]
1655 Mt. Harmony Church Road 8109 Oxford Rd
Timberlake, NC 27583 Potable Unknown Unknown 745 feet north-
northeast
WSW-2
Clifton Bradsher III
(336-504-6589)
[e-mail]
50 Glen Fogleman Road 50 Glen Fogleman Road
Rougemont, NC 27572 Potable 50 feet Unknown 620 feet northeast
WSW-3*Elger and Bobbie Latta Mt. Harmony Church Road 131 Peed Road
Rougemont, NC 27572 Potable 180 feet 48-180 feet 300 feet south WSW sample collected POST POE system, from
external spigot of well house of PW-2.
PW-4A
(WSW-4)County of Person NA
(Ball Park)
304 South Morgan Street
Roxboro, NC 27575 Inactive Unknown Unknown 290 feet east
WSW-5
Crystal Scott
(919-452-0260)
[e-mail]
1915 Mt. Harmony Church Road 1915 Mt. Harmony Church Road
Rougemont, NC 27572 Potable Unknown Unknown 530 feet south-
southeast
WSW-6
David Martin
(336-364-0178)
[e-mail]
1941 Mt. Harmony Church Road 1941 Mt. Harmony Church Road
Rougemont, NC 27572 Potable Unknown Unknown 640 feet south-
southeast
WSW-7 Ronald Mooney 1988 Mt. Harmony Church Road 1988 Mt. Harmony Church Road
Rougemont, NC 27572 Potable Unknown Unknown 860 feet south
WSW-8 Ryan Mooney 2028 Mt. Harmony Church Road 2028 Mt. Harmony Church Road
Rougemont, NC 27572 Potable Unknown Unknown 950 south
Notes:
1. * Water Supply Well PW-2 is inactive but WSW-3 dispenses at the pump house associated with PW-2.
2. (WSW-4) = Previous Well ID.
Water used for hand washing and toilets only. Contact
Fire Chief for access. External spigot locked. Sample
collected from sink faucet.
PW-4B 1795 Mt. Harmony Church Road
(Fire Department)
304 South Morgan Street
Roxboro, NC 27575
Potable
(restrooms & sink)Unknown 430 feet southeast
TABLE 2
WATER SUPPLY WELL ANALYTICAL RESULTS
MT HARMONY GROCERY
1818 MT. HARMONY CHURCH ROAD
ROUGEMONT, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #3831
SM2510 SM4500H+
WELL ID Date
Collected
BenzeneTolueneEthylbenzeneTotal XylenesAcetoneChloromethane1,2-DichloroethaneDiisopropyl Ether (DIPE)Methyl tert-Butyl Ether (MTBE)Hydrogen SulfideSulfideSpecific ConductivitypHμmhos/cm su
1 600 600 500 6,000 3 0.4 70 20 NE NE N/A N/A
5,000 260,000 80,000 50,000 6,000,000 3,000 400 70,000 20,000 NE NE N/A N/A
PW-1 3/9/1990
3/9/1990 BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA NA NA
8/11/2017
PW-3 3/9/1990 BRL BRL BRL 2.7 BRL BRL BRL BRL BRL NA NA NA NA
1/8/2018 BRL BRL BRL BRL BRL BRL 1.2 10 440 NA NA NA NA
9/18/2018 BRL BRL BRL BRL BRL 5.4 BRL BRL BRL NA NA NA NA
4/18/2019 BRL BRL BRL BRL BRL BRL BRL 23 930 NA NA NA NA
1/16/2020 BRL BRL BRL BRL BRL BRL BRL 8.0 320 NA NA NA NA
8/6/2020 BRL BRL BRL BRL BRL BRL BRL 20 1,000 NA NA NA NA
2/5/2021 14.6 <200 <10 14.8 <200 <10 <4.0 37.2 1,980 NA NA NA NA
8/23/2021 <0.50 0.31 J <0.50 <0.50 <10 <0.50 3.2 56.9 <0.50 <2,000 <2,000 742 6.58a
PW-3R Effluent 8/23/2021 <0.50 <0.50 <0.50 <0.50 <10 <0.50 <0.20 <0.50 <0.50 <2,000 <2,000 662 7.07a
3/9/1990 BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA NA NA
8/10/2017 BRL BRL BRL BRL BRL BRL 18.4 38.2 2,030 NA NA NA NA
9/18/2018 BRL BRL BRL BRL BRL BRL 5.2 15 690 NA NA NA NA
4/18/2019 BRL BRL BRL BRL BRL BRL 1.6 4.8 110 NA NA NA NA
1/16/2020 0.18 J BRL BRL BRL BRL BRL BRL 20 740 NA NA NA NA
8/6/2020 BRL BRL BRL BRL BRL BRL 15 31 1,500 NA NA NA NA
2/5/2021 <10 <200 <10 <10 <200 <10 13.5 29.4 1,600 NA NA NA NA
8/11/2017 BRL BRL BRL BRL BRL BRL 18.3 BRL 2,020 NA NA NA NA
8/24/2017 BRL BRL BRL BRL BRL BRL 7.9 BRL 674 NA NA NA NA
4/18/2019 NA NA NA NA
SM4500S2
μg/L μg/L
Inactive
Inactive
GCL
PW-2
PW-4B
(PW-4)
Volitile Organic Compounds by EPA Method 6200B
Inactive
ANALYTICAL METHOD
2L Standard
Unit
PW-3R Influent
PW-4A
(WSW-4)
Page 1 of 2
TABLE 2
WATER SUPPLY WELL ANALYTICAL RESULTS
MT HARMONY GROCERY
1818 MT. HARMONY CHURCH ROAD
ROUGEMONT, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #3831
SM2510 SM4500H+
WELL ID Date
Collected
BenzeneTolueneEthylbenzeneTotal XylenesAcetoneChloromethane1,2-DichloroethaneDiisopropyl Ether (DIPE)Methyl tert-Butyl Ether (MTBE)Hydrogen SulfideSulfideSpecific ConductivitypHμmhos/cm su
1 600 600 500 6,000 3 0.4 70 20 NE NE N/A N/A
5,000 260,000 80,000 50,000 6,000,000 3,000 400 70,000 20,000 NE NE N/A N/A
SM4500S2
μg/L μg/L
GCL
Volitile Organic Compounds by EPA Method 6200BANALYTICAL METHOD
2L Standard
Unit
WSW-1 2/5/2021 <0.50 <10 <0.50 <0.50 <10 <0.50 <0.20 <0.50 1.6 NA NA NA NA
11/21/2017 BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA NA NA
9/18/2018 BRL BRL BRL BRL BRL 4.9 J BRL BRL BRL NA NA NA NA
4/18/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA NA NA
1/16/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA NA NA
8/6/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA NA NA
2/5/2021 <0.50 <10 <0.50 <0.50 <10 <0.50 <0.20 <0.50 <0.50 NA NA NA NA
8/10/2017 BRL BRL BRL BRL BRL BRL BRL BRL 9.6 NA NA NA NA
9/18/2018 BRL BRL BRL BRL BRL BRL BRL BRL 9 NA NA NA NA
4/18/2019 BRL BRL BRL BRL BRL BRL BRL 0.17 J 9.5 NA NA NA NA
1/16/2020 BRL BRL BRL BRL BRL BRL BRL BRL 6.3 NA NA NA NA
8/6/2020 BRL BRL BRL BRL BRL BRL BRL 0.35 J 25 NA NA NA NA
9/8/2020 BRL BRL BRL BRL 4.6 J BRL BRL 0.28 J 21 NA NA NA NA
WSW-3 (Post Filter)02/05/21 <0.50 <10 <0.50 <0.50 <10 <0.50 <0.20 <0.50 <0.50 NA NA NA NA
WSW-5 2/5/2021 <0.50 <10 <0.50 <0.50 <10 <0.50 <0.20 <0.50 0.93 NA NA NA NA
WSW-6 2/5/2021 <0.50 <10 <0.50 <0.50 <10 <0.50 <0.20 <0.50 <0.50 NA NA NA NA
Notes:
1. "<" or BRL = Not detected at or above the laboratory reporting limit or method detection limit.
2. μg/L = parts per billion (ppb).
3. Concentrations in BOLD equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. GCL = Gross Contamination Level.
5. Concentrations in ITALICS equal or exceed the corresponding GCL.
6. NE = Not established.
7. J = Indicates constituent was detected above laboratory detection limit but below laboratory reporting limit.
8. NA = Not Analyzed or original lab report not provided.
9. N/A = Not Applicable.
10. U = Indicates a result < Method Detection Limit.
11. a = Sample received out of holding time for pH analysis.
12. μmhos/cm = micromho per centimeter.
13. su = standard unit.
WSW-3
WSW-2
Page 2 of 2

Mt. Harmony Grocery
September 22, 2021

ATC Project No. SLC0383102 NCDEQ State Lead Program

FIGURES
MW-9MW-10MW-8MW-6MW-14MW-13MW-1DW-1MW-3MW-12MW-7MW-2MW-11MW-4MW-5JIM LATTA ROAD
Mt. HARMONY CHURCH ROADPROPERTY BOUNDAYPW-1PW-2PW-3RPW-4BWSW-2PW-4ASURVEY BENCHMARK LOCATED ON NORTHEAST CORNER OF BASE PLATE OFVERTICAL STEEL PILLAR SOUTH OF FORMER DISPENSER ISLAND LOCATION
1,000' RADIUS500' RADIUSSITEWSW-2WSW-1PW-1PW-3RPW-2PW-4BWSW-3WSW-5WSW-6WSW-7WSW-8PW-4A
@A
Jim Latta RdMt
Har
mony Chur
ch RdGlenn Fogleman RdPW-3R
6
22
6106146186266386306
3
4
6
4
2
606
646
602 650
598594590
6 5 4
586582 658578
574
622
6
1
4594
642582634
6
0
2
646
6
3
0 6106185906 3 0
6
3
0
6
5
0
6
066466506
2
6
5
9
8 5860 100 200 300 400 500Feet Figure 4: Water Supply Analytical MapMt. Harmony Grocery1818 Mt. Harmony RoadRougemont, Person County, NCDATE: PREP:Path: S:\GIS_GPS\Project_Folders\Mt Harmony Grocery\Figure 4- Analytical Map.mxdREV:PROJECT NO.SCALE:SLC0383102ATC Associates of North Carolina, P.C.Raleigh, North Carolina, 27604(919) 871-0999RB±Notes:1. "<" = Not detected at or above the laboratory reporting limitor method detection limit.2. μg/L = parts per billion (ppb).3. Concentrations in BOLD equal or exceed the correspondingNCDEQ Groundwater Quality 2L Standard (2L Standard).4. J = Indicates constituent was detected above laboratorydetection limit but below laboratory reporting limit.COORDINATE SYSTEM:NAD 1983 StatePlane North Carolina FIPS 3200 Feet1 ' = 200 "9/10/2021chris.hanley@A Water Supply Well
Topographic Contours (4 ft interval)
Source Property
Parcels
PW-3R Influent EffluentDateUnit
Toluene 0.31 J <0.501,2-Dichloroethane 3.2 <0.20Diisopropyl Ether (DIPE)56.9 <0.50Hydrogen Sulfide <2,000 <2,000Sulfide<2,000 <2,000
8/23/2021μg/L

Mt. Harmony Grocery
September 22, 2021

ATC Project No. SLC0383102 NCDEQ State Lead Program

APPENDIX A

FIELD NOTES

Mt. Harmony Grocery
September 22, 2021

ATC Project No. SLC0383102 NCDEQ State Lead Program

APPENDIX B

LABORATORY ANAYLTICAL RESULTS
09/22/21
Technical Report for
Atlas
Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
SLC0383102
SGS Job Number: LA73437
Sampling Date: 08/23/21
Report to:
ATC Group Services LLC.
2725 East Millbrook Road Suite 121
Raleigh, NC 27604
[e-mail]
ATTN: Gabe Araos
Total number of pages in report:
Certifications: LDEQ(2048), LDHH(LA150012), AR(14-045-04), AZ(AZ0805), FL(E87657), IL(200082), KY(#31),
NC(487), SC(73004001), NJ(LA007), TX(T104704186-18-16), WV(257)
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 500 Ambassador Caffery • Scott, LA 70583 • tel: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Amy Jackson 337-237-4775
Ron Benjamin
Lab Director
Scott, LA 09/22/21
e-Hardcopy 2.0
Automated Report
48
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
[e-mail]
1 of 48
LA73437
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................5
3.1: LA73437-1: PW-3R EFFLUENT .................................................................................6
3.2: LA73437-2: PW-3R INFLUENT .................................................................................10
3.3: LA73437-3: FB-1 .........................................................................................................14
3.4: LA73437-4: TRIP BLANK ..........................................................................................17
Section 4: Misc. Forms ............................................................................................................20
4.1: Chain of Custody ...........................................................................................................21
Section 5: MS Volatiles - QC Data Summaries .....................................................................23
5.1: Method Blank Summary ................................................................................................24
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................30
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................36
Section 6: Misc. Forms (SGS Dayton, NJ) .............................................................................42
6.1: Chain of Custody ...........................................................................................................43
Section 7: General Chemistry - QC Data (SGS Dayton, NJ) ...............................................45
7.1: Method Blank and Spike Results Summary ..................................................................46
7.2: Duplicate Results Summary ..........................................................................................47
7.3: Matrix Spike Results Summary .....................................................................................48 12345672 of 48
LA73437
SGS North America Inc.
Sample Summary
Atlas
Job No:LA73437
Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Project No: SLC0383102
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
LA73437-1 08/23/21 10:35 RB 08/24/21 AQ Ground Water PW-3R EFFLUENT
LA73437-2 08/23/21 11:05 RB 08/24/21 AQ Ground Water PW-3R INFLUENT
LA73437-3 08/23/21 11:15 RB 08/24/21 AQ Field Blank Water FB-1
LA73437-4 08/23/21 00:00 RB 08/24/21 AQ Trip Blank Water TRIP BLANK
3 of 48
LA734371
Summary of Hits Page 1 of 1
Job Number:LA73437
Account:Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Collected:08/23/21
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA73437-1 PW-3R EFFLUENT
Specific Conductivity a 662 7.5 umhos/cm SM2510 B-11/SW 9050A
pH b 7.07 su SM4500H+ B-11
LA73437-2 PW-3R INFLUENT
1,2-Dichloroethane 3.2 0.20 0.12 ug/l SM 6200B
Di-Isopropyl Ether 56.9 0.50 0.073 ug/l SM 6200B
Toluene 0.31 J 0.50 0.29 ug/l SM 6200B
Specific Conductivity a 742 7.5 umhos/cm SM2510 B-11/SW 9050A
pH c 6.58 su SM4500H+ B-11
LA73437-3 FB-1
Acetone 1.2 J 10 1.2 ug/l SM 6200B
Methylene Chloride 0.24 J 0.50 0.080 ug/l SM 6200B
LA73437-4 TRIP BLANK
Methylene Chloride 0.23 J 0.50 0.080 ug/l SM 6200B
Toluene 1.0 0.50 0.29 ug/l SM 6200B
(a) Analysis performed at SGS Dayton, NJ.
(b) Sample received out of holding time for pH analysis. Temp of pH Reading: 11.6 Deg. C Analysis performed at
SGS Dayton, NJ.
(c) Sample received out of holding time for pH analysis. Temp of pH Reading: 11.5 Deg. C Analysis performed at
SGS Dayton, NJ.
4 of 48
LA734372
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
5 of 48
LA734373
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:PW-3R EFFLUENT
Lab Sample ID:LA73437-1 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0137752.D 1 08/26/21 13:36 NN n/a n/a V2K2920
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
6 of 48
LA7343733.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:PW-3R EFFLUENT
Lab Sample ID:LA73437-1 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 86%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
7 of 48
LA7343733.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:PW-3R EFFLUENT
Lab Sample ID:LA73437-1 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 90%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 48
LA7343733.1
SGS North America Inc.
Report of Analysis Page 1 of 1
Client Sample ID:PW-3R EFFLUENT
Lab Sample ID:LA73437-1 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
General Chemistry
Analyte Result RL MDL Units DF Analyzed By Method
Hydrogen Sulfide a 0.73 U 2.0 0.73 mg/l 1 08/28/21 ANJ SM4500S2- H-11
Specific Conductivity a 662 7.5 umhos/cm 1 08/31/21 09:40 ANJ SM2510 B-11/SW 9050A
Sulfide a 0.48 U 2.0 0.48 mg/l 1 08/28/21 09:24 ANJ SM4500S2- F-11
pH b 7.07 su 1 08/30/21 11:28 ANJ SM4500H+ B-11
(a) Analysis performed at SGS Dayton, NJ.
(b) Sample received out of holding time for pH analysis. Temp of pH Reading: 11.6 Deg. C Analysis performed at
SGS Dayton, NJ.
RL = Reporting Limit U = Indicates a result < MDL
MDL = Method Detection Limit J = Indicates a result >= MDL but < RL
9 of 48
LA7343733.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:PW-3R INFLUENT
Lab Sample ID:LA73437-2 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0137734.D 1 08/25/21 16:42 PJ n/a n/a V2K2919
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane 3.2 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 48
LA7343733.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:PW-3R INFLUENT
Lab Sample ID:LA73437-2 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether 56.9 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.31 0.50 0.29 ug/l J
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 92%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 48
LA7343733.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:PW-3R INFLUENT
Lab Sample ID:LA73437-2 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 98%70-130%
460-00-4 4-Bromofluorobenzene 92%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
12 of 48
LA7343733.2
SGS North America Inc.
Report of Analysis Page 1 of 1
Client Sample ID:PW-3R INFLUENT
Lab Sample ID:LA73437-2 Date Sampled:08/23/21
Matrix:AQ - Ground Water Date Received:08/24/21
Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
General Chemistry
Analyte Result RL MDL Units DF Analyzed By Method
Hydrogen Sulfide a 0.73 U 2.0 0.73 mg/l 1 08/28/21 ANJ SM4500S2- H-11
Specific Conductivity a 742 7.5 umhos/cm 1 08/31/21 09:40 ANJ SM2510 B-11/SW 9050A
Sulfide a 0.48 U 2.0 0.48 mg/l 1 08/28/21 09:24 ANJ SM4500S2- F-11
pH b 6.58 su 1 08/30/21 11:30 ANJ SM4500H+ B-11
(a) Analysis performed at SGS Dayton, NJ.
(b) Sample received out of holding time for pH analysis. Temp of pH Reading: 11.5 Deg. C Analysis performed at
SGS Dayton, NJ.
RL = Reporting Limit U = Indicates a result < MDL
MDL = Method Detection Limit J = Indicates a result >= MDL but < RL
13 of 48
LA7343733.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:FB-1
Lab Sample ID:LA73437-3 Date Sampled:08/23/21
Matrix:AQ - Field Blank Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0137729.D 1 08/25/21 14:11 PJ n/a n/a V2K2919
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 1.2 10 1.2 ug/l J
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 48
LA7343733.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:FB-1
Lab Sample ID:LA73437-3 Date Sampled:08/23/21
Matrix:AQ - Field Blank Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride 0.24 0.50 0.080 ug/l J
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 87%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 48
LA7343733.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:FB-1
Lab Sample ID:LA73437-3 Date Sampled:08/23/21
Matrix:AQ - Field Blank Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 91%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 48
LA7343733.3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TRIP BLANK
Lab Sample ID:LA73437-4 Date Sampled:08/23/21
Matrix:AQ - Trip Blank Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0137730.D 1 08/25/21 14:41 PJ n/a n/a V2K2919
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
17 of 48
LA7343733.4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TRIP BLANK
Lab Sample ID:LA73437-4 Date Sampled:08/23/21
Matrix:AQ - Trip Blank Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride 0.23 0.50 0.080 ug/l J
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 1.0 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 86%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
18 of 48
LA7343733.4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TRIP BLANK
Lab Sample ID:LA73437-4 Date Sampled:08/23/21
Matrix:AQ - Trip Blank Water Date Received:08/24/21
Method:SM 6200B Percent Solids:n/a
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 89%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
19 of 48
LA7343733.4
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
20 of 48
LA734374
LA73437: Chain of Custody
Page 1 of 2
21 of 48
LA7343744.1
LA73437: Chain of Custody
Page 2 of 2
22 of 48
LA7343744.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Scott, LA
Section 5
23 of 48
LA734375
Method Blank Summary Page 1 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2919-MB1 2K0137727.D 1 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
24 of 48
LA7343755.1.1
Method Blank Summary Page 2 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2919-MB1 2K0137727.D 1 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
25 of 48
LA7343755.1.1
Method Blank Summary Page 3 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2919-MB1 2K0137727.D 1 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 89%70-130%
2037-26-5 Toluene-D8 97%70-130%
460-00-4 4-Bromofluorobenzene 94%70-130%
26 of 48
LA7343755.1.1
Method Blank Summary Page 1 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2920-MB1 2K0137751.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
27 of 48
LA7343755.1.2
Method Blank Summary Page 2 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2920-MB1 2K0137751.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
28 of 48
LA7343755.1.2
Method Blank Summary Page 3 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2920-MB1 2K0137751.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 86%70-130%
2037-26-5 Toluene-D8 97%70-130%
460-00-4 4-Bromofluorobenzene 90%70-130%
29 of 48
LA7343755.1.2
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2919-BS1 2K0137724.D 1 08/25/21 PJ n/a n/a V2K2919
V2K2919-BSD1 2K0137725.D 1 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 40.6 81 38.4 77 6 70-130/30
71-43-2 Benzene 20 19.1 96 18.1 91 5 70-130/30
108-86-1 Bromobenzene 20 20.6 103 19.8 99 4 70-130/30
74-97-5 Bromochloromethane 20 18.2 91 17.6 88 3 70-130/30
75-27-4 Bromodichloromethane 20 17.8 89 16.6 83 7 70-130/30
75-25-2 Bromoform 20 18.3 92 17.6 88 4 70-130/30
104-51-8 n-Butylbenzene 20 23.7 119 23.4 117 1 70-130/30
135-98-8 sec-Butylbenzene 20 22.9 115 22.8 114 0 70-130/30
98-06-6 tert-Butylbenzene 20 21.9 110 21.5 108 2 70-130/30
56-23-5 Carbon Tetrachloride 20 17.9 90 17.1 86 5 70-130/30
108-90-7 Chlorobenzene 20 20.3 102 19.7 99 3 70-130/30
75-00-3 Chloroethane 20 16.9 85 16.2 81 4 60-140/30
67-66-3 Chloroform 20 18.2 91 17.5 88 4 70-130/30
95-49-8 o-Chlorotoluene 20 21.2 106 21.0 105 1 70-130/30
106-43-4 p-Chlorotoluene 20 21.6 108 21.4 107 1 70-130/30
124-48-1 Dibromochloromethane 20 19.0 95 18.1 91 5 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 18.6 93 18.3 92 2 70-130/30
106-93-4 1,2-Dibromoethane 20 20.8 104 20.0 100 4 70-130/30
75-71-8 Dichlorodifluoromethane 20 19.8 99 18.6 93 6 60-140/30
541-73-1 m-Dichlorobenzene 20 21.1 106 20.8 104 1 70-130/30
95-50-1 o-Dichlorobenzene 20 21.2 106 21.0 105 1 70-130/30
106-46-7 p-Dichlorobenzene 20 20.7 104 20.5 103 1 70-130/30
75-34-3 1,1-Dichloroethane 20 18.5 93 17.8 89 4 70-130/30
107-06-2 1,2-Dichloroethane 20 17.2 86 16.3 82 5 70-130/30
75-35-4 1,1-Dichloroethylene 20 17.6 88 16.8 84 5 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 18.7 94 17.9 90 4 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 17.0 85 16.4 82 4 70-130/30
78-87-5 1,2-Dichloropropane 20 19.5 98 18.5 93 5 70-130/30
142-28-9 1,3-Dichloropropane 20 19.7 99 19.2 96 3 70-130/30
594-20-7 2,2-Dichloropropane 20 20.5 103 19.5 98 5 70-130/30
563-58-6 1,1-Dichloropropene 20 19.3 97 18.5 93 4 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 18.4 92 16.8 84 9 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 18.7 94 18.1 91 3 70-130/30
108-20-3 Di-Isopropyl Ether 20 18.7 94 17.9 90 4 70-130/30
64-17-5 Ethyl Alcohol 400 317 79 306 77 4 70-130/30
100-41-4 Ethylbenzene 20 21.1 106 20.4 102 3 70-130/30
* = Outside of Control Limits.
30 of 48
LA7343755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2919-BS1 2K0137724.D 1 08/25/21 PJ n/a n/a V2K2919
V2K2919-BSD1 2K0137725.D 1 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 54.9 110 48.7 97 12 70-130/30
87-68-3 Hexachlorobutadiene 20 24.4 122 24.1 121 1 70-130/30
98-82-8 Isopropylbenzene 20 21.8 109 21.1 106 3 70-130/30
99-87-6 p-Isopropyltoluene 20 23.2 116 23.0 115 1 70-130/30
74-83-9 Methyl Bromide 20 19.0 95 18.0 90 5 60-140/30
74-87-3 Methyl Chloride 20 18.9 95 17.8 89 6 60-140/30
74-95-3 Methylene Bromide 20 19.2 96 18.3 92 5 70-130/30
75-09-2 Methylene Chloride 20 17.1 86 16.1 81 6 70-130/30
78-93-3 Methyl Ethyl Ketone 50 46.4 93 45.2 90 3 70-130/30
108-10-1 4-Methyl-2-pentanone 50 43.9 88 41.3 83 6 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 17.7 89 17.0 85 4 70-130/30
91-20-3 Naphthalene 20 21.1 106 20.9 105 1 70-130/30
103-65-1 n-Propylbenzene 20 22.1 111 21.6 108 2 70-130/30
100-42-5 Styrene 20 22.0 110 21.1 106 4 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 19.5 98 19.1 96 2 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 20.9 105 20.5 103 2 70-130/30
127-18-4 Tetrachloroethylene 20 21.6 108 20.7 104 4 70-130/30
108-88-3 Toluene 20 20.1 101 19.5 98 3 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 22.8 114 22.6 113 1 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 22.7 114 22.4 112 1 70-130/30
71-55-6 1,1,1-Trichloroethane 20 19.4 97 18.4 92 5 70-130/30
79-00-5 1,1,2-Trichloroethane 20 20.7 104 19.5 98 6 70-130/30
79-01-6 Trichloroethylene 20 20.3 102 19.1 96 6 70-130/30
75-69-4 Trichlorofluoromethane 20 18.6 93 17.5 88 6 60-140/30
96-18-4 1,2,3-Trichloropropane 20 19.2 96 18.6 93 3 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 21.8 109 21.4 107 2 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 21.8 109 21.6 108 1 70-130/30
108-05-4 Vinyl Acetate 20 20.7 104 19.3 97 7 70-130/30
75-01-4 Vinyl Chloride 20 19.0 95 17.8 89 7 60-140/30
m,p-Xylene 40 42.5 106 40.9 102 4 70-130/30
95-47-6 o-Xylene 20 21.2 106 20.4 102 4 70-130/30
1330-20-7 Xylene (total)60 63.7 106 61.3 102 4 70-130/30
* = Outside of Control Limits.
31 of 48
LA7343755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2919-BS1 2K0137724.D 1 08/25/21 PJ n/a n/a V2K2919
V2K2919-BSD1 2K0137725.D 1 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 92%87%70-130%
2037-26-5 Toluene-D8 100%101%70-130%
460-00-4 4-Bromofluorobenzene 97%96%70-130%
* = Outside of Control Limits.
32 of 48
LA7343755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2920-BS1 2K0137748.D 1 08/26/21 NN n/a n/a V2K2920
V2K2920-BSD1 2K0137749.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 57.6 115 53.8 108 7 70-130/30
71-43-2 Benzene 20 20.5 103 19.9 100 3 70-130/30
108-86-1 Bromobenzene 20 21.8 109 21.3 107 2 70-130/30
74-97-5 Bromochloromethane 20 19.8 99 18.8 94 5 70-130/30
75-27-4 Bromodichloromethane 20 18.9 95 18.0 90 5 70-130/30
75-25-2 Bromoform 20 19.2 96 18.2 91 5 70-130/30
104-51-8 n-Butylbenzene 20 24.6 123 25.4 127 3 70-130/30
135-98-8 sec-Butylbenzene 20 23.8 119 24.4 122 2 70-130/30
98-06-6 tert-Butylbenzene 20 22.6 113 23.2 116 3 70-130/30
56-23-5 Carbon Tetrachloride 20 18.4 92 17.9 90 3 70-130/30
108-90-7 Chlorobenzene 20 21.6 108 21.4 107 1 70-130/30
75-00-3 Chloroethane 20 17.8 89 17.4 87 2 60-140/30
67-66-3 Chloroform 20 19.8 99 19.0 95 4 70-130/30
95-49-8 o-Chlorotoluene 20 22.3 112 22.4 112 0 70-130/30
106-43-4 p-Chlorotoluene 20 22.7 114 23.3 117 3 70-130/30
124-48-1 Dibromochloromethane 20 19.9 100 19.0 95 5 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 18.8 94 19.0 95 1 70-130/30
106-93-4 1,2-Dibromoethane 20 21.4 107 20.9 105 2 70-130/30
75-71-8 Dichlorodifluoromethane 20 19.1 96 18.7 94 2 60-140/30
541-73-1 m-Dichlorobenzene 20 22.2 111 22.4 112 1 70-130/30
95-50-1 o-Dichlorobenzene 20 22.3 112 22.6 113 1 70-130/30
106-46-7 p-Dichlorobenzene 20 21.8 109 22.0 110 1 70-130/30
75-34-3 1,1-Dichloroethane 20 19.7 99 19.0 95 4 70-130/30
107-06-2 1,2-Dichloroethane 20 18.2 91 17.2 86 6 70-130/30
75-35-4 1,1-Dichloroethylene 20 18.2 91 18.0 90 1 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 20.1 101 19.7 99 2 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 18.0 90 18.5 93 3 70-130/30
78-87-5 1,2-Dichloropropane 20 20.7 104 19.9 100 4 70-130/30
142-28-9 1,3-Dichloropropane 20 21.0 105 20.1 101 4 70-130/30
594-20-7 2,2-Dichloropropane 20 20.8 104 20.2 101 3 70-130/30
563-58-6 1,1-Dichloropropene 20 20.1 101 19.7 99 2 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 19.0 95 18.1 91 5 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 19.3 97 18.8 94 3 70-130/30
108-20-3 Di-Isopropyl Ether 20 19.7 99 19.1 96 3 70-130/30
64-17-5 Ethyl Alcohol 400 329 82 308 77 7 70-130/30
100-41-4 Ethylbenzene 20 22.4 112 22.2 111 1 70-130/30
* = Outside of Control Limits.
33 of 48
LA7343755.2.2
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2920-BS1 2K0137748.D 1 08/26/21 NN n/a n/a V2K2920
V2K2920-BSD1 2K0137749.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 69.5 139* a 62.1 124 11 70-130/30
87-68-3 Hexachlorobutadiene 20 25.1 126 25.6 128 2 70-130/30
98-82-8 Isopropylbenzene 20 23.2 116 22.8 114 2 70-130/30
99-87-6 p-Isopropyltoluene 20 24.2 121 24.7 124 2 70-130/30
74-83-9 Methyl Bromide 20 19.3 97 19.6 98 2 60-140/30
74-87-3 Methyl Chloride 20 19.4 97 19.1 96 2 60-140/30
74-95-3 Methylene Bromide 20 20.2 101 19.0 95 6 70-130/30
75-09-2 Methylene Chloride 20 18.4 92 17.6 88 4 70-130/30
78-93-3 Methyl Ethyl Ketone 50 60.4 121 57.8 116 4 70-130/30
108-10-1 4-Methyl-2-pentanone 50 45.9 92 43.1 86 6 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 18.3 92 17.5 88 4 70-130/30
91-20-3 Naphthalene 20 21.7 109 21.6 108 0 70-130/30
103-65-1 n-Propylbenzene 20 22.9 115 23.4 117 2 70-130/30
100-42-5 Styrene 20 23.4 117 22.9 115 2 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 20.6 103 20.2 101 2 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 21.7 109 21.3 107 2 70-130/30
127-18-4 Tetrachloroethylene 20 22.5 113 22.5 113 0 70-130/30
108-88-3 Toluene 20 21.4 107 21.2 106 1 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 23.8 119 24.0 120 1 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 23.9 120 24.0 120 0 70-130/30
71-55-6 1,1,1-Trichloroethane 20 20.1 101 19.8 99 2 70-130/30
79-00-5 1,1,2-Trichloroethane 20 21.8 109 20.5 103 6 70-130/30
79-01-6 Trichloroethylene 20 21.2 106 21.2 106 0 70-130/30
75-69-4 Trichlorofluoromethane 20 18.7 94 18.3 92 2 60-140/30
96-18-4 1,2,3-Trichloropropane 20 20.3 102 19.3 97 5 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 22.8 114 23.3 117 2 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 22.9 115 23.4 117 2 70-130/30
108-05-4 Vinyl Acetate 20 20.6 103 19.4 97 6 70-130/30
75-01-4 Vinyl Chloride 20 19.3 97 19.0 95 2 60-140/30
m,p-Xylene 40 44.9 112 44.1 110 2 70-130/30
95-47-6 o-Xylene 20 22.5 113 22.1 111 2 70-130/30
1330-20-7 Xylene (total)60 67.4 112 66.2 110 2 70-130/30
* = Outside of Control Limits.
34 of 48
LA7343755.2.2
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2920-BS1 2K0137748.D 1 08/26/21 NN n/a n/a V2K2920
V2K2920-BSD1 2K0137749.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 90%85%70-130%
2037-26-5 Toluene-D8 100%100%70-130%
460-00-4 4-Bromofluorobenzene 98%97%70-130%
(a) Outside control limits biased high. Analyte not detected in associated samples.
* = Outside of Control Limits.
35 of 48
LA7343755.2.2
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA73368-1MS 2K0137743.D 400 08/25/21 PJ n/a n/a V2K2919
LA73368-1MSD 2K0137744.D 400 08/25/21 PJ n/a n/a V2K2919
LA73368-1 2K0137733.D 400 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
LA73368-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 20000 12400 62* a 20000 12900 65* a 4 70-130/20
71-43-2 Benzene 2280 8000 11300 113 8000 10700 105 5 70-130/20
108-86-1 Bromobenzene ND 8000 9210 115 8000 9100 114 1 70-130/20
74-97-5 Bromochloromethane ND 8000 8270 103 8000 7850 98 5 70-130/20
75-27-4 Bromodichloromethane ND 8000 7630 95 8000 7230 90 5 70-130/20
75-25-2 Bromoform ND 8000 7280 91 8000 7390 92 1 70-130/20
104-51-8 n-Butylbenzene ND 8000 10200 128 8000 9910 124 3 70-130/20
135-98-8 sec-Butylbenzene ND 8000 10100 126 8000 9690 121 4 70-130/20
98-06-6 tert-Butylbenzene ND 8000 9610 120 8000 9350 117 3 70-130/20
56-23-5 Carbon Tetrachloride ND 8000 7750 97 8000 7480 94 4 70-130/20
108-90-7 Chlorobenzene ND 8000 9180 115 8000 8990 112 2 70-130/20
75-00-3 Chloroethane ND 8000 6840 86 8000 6600 83 4 60-140/20
67-66-3 Chloroform ND 8000 8340 104 8000 7860 98 6 70-130/20
95-49-8 o-Chlorotoluene ND 8000 9310 116 8000 9060 113 3 70-130/20
106-43-4 p-Chlorotoluene ND 8000 9520 119 8000 9200 115 3 70-130/20
124-48-1 Dibromochloromethane ND 8000 7920 99 8000 8020 100 1 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 8000 7680 96 8000 7540 94 2 70-130/20
106-93-4 1,2-Dibromoethane ND 8000 8850 111 8000 8930 112 1 70-130/20
75-71-8 Dichlorodifluoromethane ND 8000 7490 94 8000 7150 89 5 60-140/20
541-73-1 m-Dichlorobenzene ND 8000 9270 116 8000 9050 113 2 70-130/20
95-50-1 o-Dichlorobenzene ND 8000 9240 116 8000 9120 114 1 70-130/20
106-46-7 p-Dichlorobenzene ND 8000 9050 113 8000 8880 111 2 70-130/20
75-34-3 1,1-Dichloroethane ND 8000 8210 103 8000 7860 98 4 70-130/20
107-06-2 1,2-Dichloroethane ND 8000 7420 93 8000 7160 90 4 70-130/20
75-35-4 1,1-Dichloroethylene ND 8000 8050 101 8000 7760 97 4 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 8000 8440 106 8000 8030 100 5 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 8000 7690 96 8000 7350 92 5 70-130/20
78-87-5 1,2-Dichloropropane ND 8000 8510 106 8000 8180 102 4 70-130/20
142-28-9 1,3-Dichloropropane ND 8000 8650 108 8000 8620 108 0 70-130/20
594-20-7 2,2-Dichloropropane ND 8000 7560 95 8000 7250 91 4 70-130/20
563-58-6 1,1-Dichloropropene ND 8000 8630 108 8000 8210 103 5 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 8000 7530 94 8000 7290 91 3 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 8000 7690 96 8000 7710 96 0 70-130/20
108-20-3 Di-Isopropyl Ether ND 8000 8100 101 8000 7930 99 2 70-130/20
64-17-5 Ethyl Alcohol ND 160000 113000 71 160000 104000 65* a 8 70-130/20
100-41-4 Ethylbenzene 3780 8000 14000 128 8000 13700 124 2 70-130/20
* = Outside of Control Limits.
36 of 48
LA7343755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA73368-1MS 2K0137743.D 400 08/25/21 PJ n/a n/a V2K2919
LA73368-1MSD 2K0137744.D 400 08/25/21 PJ n/a n/a V2K2919
LA73368-1 2K0137733.D 400 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
LA73368-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 20000 20500 103 20000 18800 94 9 70-130/20
87-68-3 Hexachlorobutadiene ND 8000 10000 125 8000 9680 121 3 70-130/20
98-82-8 Isopropylbenzene 97.5 J 8000 9950 123 8000 9730 120 2 70-130/20
99-87-6 p-Isopropyltoluene ND 8000 10100 126 8000 9770 122 3 70-130/20
74-83-9 Methyl Bromide ND 8000 7320 92 8000 7030 88 4 60-140/20
74-87-3 Methyl Chloride ND 8000 7190 90 8000 6850 86 5 60-140/20
74-95-3 Methylene Bromide ND 8000 8270 103 8000 7940 99 4 70-130/20
75-09-2 Methylene Chloride 178 J 8000 7700 94 8000 7440 91 3 70-130/20
78-93-3 Methyl Ethyl Ketone ND 20000 17300 87 20000 16900 85 2 70-130/20
108-10-1 4-Methyl-2-pentanone ND 20000 17900 90 20000 17100 86 5 70-130/20
1634-04-4 Methyl Tert Butyl Ether ND 8000 7320 92 8000 7210 90 2 70-130/20
91-20-3 Naphthalene 857 8000 9830 112 8000 10000 114 2 70-130/20
103-65-1 n-Propylbenzene 323 8000 9910 120 8000 9660 117 3 70-130/20
100-42-5 Styrene 77.0 J 8000 9870 122 8000 9740 121 1 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 8000 8540 107 8000 8510 106 0 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 8000 8990 112 8000 8840 111 2 70-130/20
127-18-4 Tetrachloroethylene ND 8000 9590 120 8000 9360 117 2 70-130/20
108-88-3 Toluene 26400 8000 38600 153* b 8000 38400 150* b 1 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 8000 9480 119 8000 9370 117 1 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 8000 9590 120 8000 9420 118 2 70-130/20
71-55-6 1,1,1-Trichloroethane ND 8000 8640 108 8000 8180 102 5 70-130/20
79-00-5 1,1,2-Trichloroethane ND 8000 8870 111 8000 8870 111 0 70-130/20
79-01-6 Trichloroethylene ND 8000 9010 113 8000 8530 107 5 70-130/20
75-69-4 Trichlorofluoromethane ND 8000 7130 89 8000 6850 86 4 60-140/20
96-18-4 1,2,3-Trichloropropane ND 8000 8280 104 8000 8220 103 1 70-130/20
95-63-6 1,2,4-Trimethylbenzene 3180 8000 13100 124 8000 12900 122 2 70-130/20
108-67-8 1,3,5-Trimethylbenzene 744 8000 10500 122 8000 10200 118 3 70-130/20
108-05-4 Vinyl Acetate ND 8000 7630 95 8000 7610 95 0 70-130/20
75-01-4 Vinyl Chloride ND 8000 7210 90 8000 6930 87 4 60-140/20
m,p-Xylene 13800 16000 34600 130 16000 34100 127 1 70-130/20
95-47-6 o-Xylene 6830 8000 17400 132* a 8000 17200 130 1 70-130/20
1330-20-7 Xylene (total)20600 24000 52000 131* a 24000 51300 128 1 70-130/20
* = Outside of Control Limits.
37 of 48
LA7343755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA73368-1MS 2K0137743.D 400 08/25/21 PJ n/a n/a V2K2919
LA73368-1MSD 2K0137744.D 400 08/25/21 PJ n/a n/a V2K2919
LA73368-1 2K0137733.D 400 08/25/21 PJ n/a n/a V2K2919
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-2, LA73437-3, LA73437-4
CAS No.Surrogate Recoveries MS MSD LA73368-1 Limits
17060-07-0 1,2-Dichloroethane-D4 91%90%89%70-130%
2037-26-5 Toluene-D8 100%99%99%70-130%
460-00-4 4-Bromofluorobenzene 98%98%95%70-130%
(a) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
(b) Outside control limits due to high level in sample relative to spike amount.
* = Outside of Control Limits.
38 of 48
LA7343755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA73456-7MS 2K0137761.D 5 08/26/21 NN n/a n/a V2K2920
LA73456-7MSD 2K0137762.D 5 08/26/21 NN n/a n/a V2K2920
LA73456-7 2K0137760.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
LA73456-7 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 250 101 40* a 250 101 40* a 0 70-130/20
71-43-2 Benzene ND 100 97.9 98 100 97.0 97 1 70-130/20
108-86-1 Bromobenzene ND 100 108 108 100 106 106 2 70-130/20
74-97-5 Bromochloromethane ND 100 95.9 96 100 96.4 96 1 70-130/20
75-27-4 Bromodichloromethane ND 100 85.9 86 100 89.0 89 4 70-130/20
75-25-2 Bromoform ND 100 90.4 90 100 91.9 92 2 70-130/20
104-51-8 n-Butylbenzene ND 100 121 121 100 116 116 4 70-130/20
135-98-8 sec-Butylbenzene ND 100 122 122 100 117 117 4 70-130/20
98-06-6 tert-Butylbenzene ND 100 117 117 100 111 111 5 70-130/20
56-23-5 Carbon Tetrachloride ND 100 89.8 90 100 87.0 87 3 70-130/20
108-90-7 Chlorobenzene ND 100 106 106 100 105 105 1 70-130/20
75-00-3 Chloroethane ND 100 88.0 88 100 84.0 84 5 60-140/20
67-66-3 Chloroform ND 100 92.7 93 100 91.0 91 2 70-130/20
95-49-8 o-Chlorotoluene ND 100 112 112 100 109 109 3 70-130/20
106-43-4 p-Chlorotoluene ND 100 115 115 100 113 113 2 70-130/20
124-48-1 Dibromochloromethane ND 100 96.6 97 100 96.4 96 0 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 100 93.2 93 100 93.9 94 1 70-130/20
106-93-4 1,2-Dibromoethane ND 100 109 109 100 109 109 0 70-130/20
75-71-8 Dichlorodifluoromethane ND 100 92.5 93 100 90.1 90 3 60-140/20
541-73-1 m-Dichlorobenzene ND 100 113 113 100 109 109 4 70-130/20
95-50-1 o-Dichlorobenzene ND 100 115 115 100 112 112 3 70-130/20
106-46-7 p-Dichlorobenzene ND 100 112 112 100 108 108 4 70-130/20
75-34-3 1,1-Dichloroethane ND 100 94.0 94 100 92.3 92 2 70-130/20
107-06-2 1,2-Dichloroethane ND 100 89.0 89 100 87.6 88 2 70-130/20
75-35-4 1,1-Dichloroethylene ND 100 93.0 93 100 89.9 90 3 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 100 97.3 97 100 94.3 94 3 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 100 97.0 97 100 87.0 87 11 70-130/20
78-87-5 1,2-Dichloropropane ND 100 98.1 98 100 96.3 96 2 70-130/20
142-28-9 1,3-Dichloropropane ND 100 105 105 100 103 103 2 70-130/20
594-20-7 2,2-Dichloropropane ND 100 87.6 88 100 87.8 88 0 70-130/20
563-58-6 1,1-Dichloropropene ND 100 99.5 100 100 96.4 96 3 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 100 85.3 85 100 85.8 86 1 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 100 90.8 91 100 91.1 91 0 70-130/20
108-20-3 Di-Isopropyl Ether ND 100 91.5 92 100 91.5 92 0 70-130/20
64-17-5 Ethyl Alcohol ND 2000 1320 66* a 2000 1540 77 15 70-130/20
100-41-4 Ethylbenzene ND 100 110 110 100 108 108 2 70-130/20
* = Outside of Control Limits.
39 of 48
LA7343755.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA73456-7MS 2K0137761.D 5 08/26/21 NN n/a n/a V2K2920
LA73456-7MSD 2K0137762.D 5 08/26/21 NN n/a n/a V2K2920
LA73456-7 2K0137760.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
LA73456-7 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 250 211 84 250 219 88 4 70-130/20
87-68-3 Hexachlorobutadiene ND 100 114 114 100 108 108 5 70-130/20
98-82-8 Isopropylbenzene ND 100 114 114 100 111 111 3 70-130/20
99-87-6 p-Isopropyltoluene ND 100 121 121 100 117 117 3 70-130/20
74-83-9 Methyl Bromide ND 100 66.4 66 100 80.5 81 19 60-140/20
74-87-3 Methyl Chloride ND 100 89.3 89 100 87.1 87 2 60-140/20
74-95-3 Methylene Bromide ND 100 97.6 98 100 97.9 98 0 70-130/20
75-09-2 Methylene Chloride ND 100 89.6 90 100 89.1 89 1 70-130/20
78-93-3 Methyl Ethyl Ketone ND 250 185 74 250 181 72 2 70-130/20
108-10-1 4-Methyl-2-pentanone ND 250 215 86 250 216 86 0 70-130/20
1634-04-4 Methyl Tert Butyl Ether 0.20 J 100 85.6 85 100 86.7 87 1 70-130/20
91-20-3 Naphthalene ND 100 109 109 100 110 110 1 70-130/20
103-65-1 n-Propylbenzene ND 100 118 118 100 112 112 5 70-130/20
100-42-5 Styrene ND 100 114 114 100 113 113 1 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 100 100 100 100 98.7 99 1 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 100 116 116 100 116 116 0 70-130/20
127-18-4 Tetrachloroethylene ND 100 114 114 100 110 110 4 70-130/20
108-88-3 Toluene ND 100 106 106 100 104 104 2 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 100 115 115 100 115 115 0 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 100 115 115 100 114 114 1 70-130/20
71-55-6 1,1,1-Trichloroethane ND 100 99.0 99 100 96.2 96 3 70-130/20
79-00-5 1,1,2-Trichloroethane ND 100 108 108 100 106 106 2 70-130/20
79-01-6 Trichloroethylene ND 100 101 101 100 98.8 99 2 70-130/20
75-69-4 Trichlorofluoromethane ND 100 92.8 93 100 89.8 90 3 60-140/20
96-18-4 1,2,3-Trichloropropane ND 100 94.1 94 100 93.7 94 0 70-130/20
95-63-6 1,2,4-Trimethylbenzene ND 100 116 116 100 111 111 4 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 100 116 116 100 112 112 4 70-130/20
108-05-4 Vinyl Acetate ND 100 101 101 100 103 103 2 70-130/20
75-01-4 Vinyl Chloride ND 100 91.7 92 100 89.3 89 3 60-140/20
m,p-Xylene ND 200 220 110 200 215 108 2 70-130/20
95-47-6 o-Xylene ND 100 110 110 100 108 108 2 70-130/20
1330-20-7 Xylene (total)ND 300 330 110 300 323 108 2 70-130/20
* = Outside of Control Limits.
40 of 48
LA7343755.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA73437
Account:ATCNCR Atlas
Project:Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA73456-7MS 2K0137761.D 5 08/26/21 NN n/a n/a V2K2920
LA73456-7MSD 2K0137762.D 5 08/26/21 NN n/a n/a V2K2920
LA73456-7 2K0137760.D 1 08/26/21 NN n/a n/a V2K2920
The QC reported here applies to the following samples:Method: SM 6200B
LA73437-1
CAS No.Surrogate Recoveries MS MSD LA73456-7 Limits
17060-07-0 1,2-Dichloroethane-D4 91%92%88%70-130%
2037-26-5 Toluene-D8 98%99%98%70-130%
460-00-4 4-Bromofluorobenzene 95%96%92%70-130%
(a) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
* = Outside of Control Limits.
41 of 48
LA7343755.3.2
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
(SGS Dayton, NJ)
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 6
42 of 48
LA734376
CHATN OF CUSTODY
500 Ambcsdor CaIftry Pukway, Scott, LA 70583
Phone: 80G3M-5227 Fu. 33'l-237-1838
Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC DW - Ddnking Wster
GW - Grcund Watcr
WW - Wat.r
SW - Surfa@ Wetcr
SO. Soil
SL- Sludgg
SED.Sedim6nt
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LIO - Olhar Liqqid
AIR - Air
SOL - othor Solid
WP - Wipc
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Commercial "A' = Results Only
Commorcial'B" = Resulls + QC Summary
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Page 1 of 1
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LA73437: Chain of Custody
Page 1 of 2
SGS Dayton, NJ
43 of 48
LA7343766.1
Job Number:LA73437 Client:SGS NA
Date / Time Received:8/26/2021 10:20:00 AM Delivery Method:
Project:
4. No. Coolers:1
Airbill #'s:
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Cooler temp verification:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:Ice (Bag)
Quality Control Preservation Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Comments
Y or N N/A
Cooler Temps (Raw Measured) °C:
Cooler Temps (Corrected) °C:
Cooler 1: (5.0);
Cooler 1: (5.0);
SM089-03Rev. Date 12/7/17
SGS Sample Receipt Summary
Test Strip Lot #s:pH 1-12:212820 pH 12+:203117A Other: (Specify)
LA73437: Chain of Custody
Page 2 of 2
44 of 48
LA7343766.1
SGS North America Inc.
General Chemistry
QC Data Summaries
(SGS Dayton, NJ)
Includes the following where applicable:
• Method Blank and Blank Spike Summaries
• Duplicate Summaries
• Matrix Spike Summaries
Scott, LA
Section 7
45 of 48
LA734377
METHOD BLANK AND SPIKE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: LA73437
Account: ALLA - SGS Scott, LA
Project: ATCNCR: Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
MB Spike BSP BSP QC
Analyte Batch ID RL Result Units Amount Result %Recov Limits
Specific Conductivity GN21364 umhos/cm 1412 1420 100.6 99-101%
Sulfide GN21299 2.0 0.0 mg/l 10.52 10.5 99.8 80-120%
Sulfide GN21299 mg/l 5.26 5.3 100.8 80-120%
Associated Samples:
Batch GN21299: LA73437-1, LA73437-2
Batch GN21364: LA73437-1, LA73437-2
(*) Outside of QC limits
__________________________________________________________________________________________________________________________
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46 of 48
LA7343777.1
DUPLICATE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: LA73437
Account: ALLA - SGS Scott, LA
Project: ATCNCR: Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
QC Original DUP QC
Analyte Batch ID Sample Units Result Result RPD Limits
Specific Conductivity GN21364 LA73437-1 umhos/cm 662 661 0.2 0-10%
Sulfide GN21299 JD30390-10 mg/l 0.0 0.0 0.0 0-12%
Associated Samples:
Batch GN21299: LA73437-1, LA73437-2
Batch GN21364: LA73437-1, LA73437-2
(*) Outside of QC limits
__________________________________________________________________________________________________________________________
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47 of 48
LA7343777.2
MATRIX SPIKE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: LA73437
Account: ALLA - SGS Scott, LA
Project: ATCNCR: Mt. Harmony, 1818 Mt. Harmony Rd, Rougemont, NC
QC Original Spike MS QC
Analyte Batch ID Sample Units Result Amount Result %Rec Limits
Sulfide GN21299 JD30390-9 mg/l 0.0 3.51 3.2 91.2 37-135%
Associated Samples:
Batch GN21299: LA73437-1, LA73437-2
(*) Outside of QC limits
(N) Matrix Spike Rec. outside of QC limits
__________________________________________________________________________________________________________________________
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48 of 48
LA7343777.3