NC0090000_Instream Assessment_20210813

Date: August 13, 2021
To: Danny Smith, Director, Division of Water Resources
Rick Bolich, Section Chief, Division of Water Resources
From: WQROS-MRO
Subject: Colonial Pipeline (Huntersville, NC)—SW Assessment
The purpose of this document is to provide a summary of surface water assessment activities conducted
by staff in Mooresville Regional Office (MRO) and available data regarding the gasoline release within
the Colonial Pipeline right of way(ROW) near the intersection of Huntersville-Concord Road.
Brief Site History
On August 14, 2020, Colonial Pipeline and agencies including emergency response were notified of a
potential gasoline release within the ROW near the intersection of the pipeline and Huntersville-
Concord Road. The gasoline release was confirmed and the source of the release was identified to be
from Colonial Pipeline Line 1. Actions were taken to immediately stop and control the release. The
release was assigned incident number 95827. It was estimated that 1.2 million gallons of gasoline was
released. The investigation and corrective action efforts remain on-going at the site.
Surface Water Assessment Activities
Initial and on-going surface water assessment activities are conducted by Colonial and/or their
contractors. Mecklenburg County Storm Water Services is also conducting routine surface water
sampling at the site. Mecklenburg County's surface water sampling results and map are included in
Attachment 1. The Division of Water Resources (DWR) recently conducted a surface water assessment
at the site to determine where jurisdictional waters are and collected surface water samples where
appropriate.
On July 19, 2021, DWR-MRO staff visited the Brown property located at 14426 Huntersville-Concord
Road, Huntersville, NC to identify jurisdictional waters at the property and collect respective surface
water samples. All surface water samples collected were analyzed for Volatile Organic Compounds
(VOCs). Based on review of the results, all analytes were non-detect. Laboratory analytical results and
surface water sampling location map are included as Attachment 2. Jurisdictional waters of unnamed
tributaries (UTs)to South Prong Clark Creek were noted as starting at Seep 1, Seep 2, and including the
existing mapped UT that joins Seep 1 &Seep 2 from the east.
After review of available information, DWR-MRO staff conducted additional surface water assessment
activities at the site. Additional areas were identified and are shown on the map as A, C, D, K, an area
north of C and D, and area east of the site beyond the 1,500-foot buffer and is included in Attachment 1.
On August 2, 2021, DWR-MRO staff conducted surface water assessment activities at the additional
areas identified, which included jurisdictional waters determination and associated surface water
sampling where appropriate. Jurisdictional waters and surface water sampling locations are identified
on the map included as Attachment 3.

At areas C and D, head cuts were observed and are identified on the map. Surface waters are
considered jurisdictional beginning at the head cuts identified at these locations. The two features
north of the C and D areas are not considered jurisdictional and appeared to be more wet weather
features. Areas A, K, and the features east of the site beyond the 1,500-foot buffer are considered
jurisdictional as shown on the map (Attachment 3). The UTs identified at areas A, C, and D flow into the
North Prong Clark Creek tributary. The UTs identified at Area K and the areas east of the site beyond the
1,500-foot buffer flow into the South Prong Clark Creek tributary. The UTs discussed above are
classified as Class C waters and are part of the Yadkin Pee-Dee River Basin.
All surface water samples were analyzed for VOC's and total lead. Lead was added to the analyte list
due to prevalence above NC 2L groundwater standards in groundwater samples collected by Colonial
and/or their contractors at the site.
Based on review of the August 2, 2021 surface water analytical results, all analytes for all sample
locations were non-detect. Laboratory analytical results are included in Attachment 3.

Attachment 1
Mecklenburg County Storm Water Services Map and Laboratory Data

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WATER — Feet Colonial Pipeline SR 2448 / Pipeline ROW DATE: February 22, 2021 1
DRAWN BY: TRB
Huntersville, NC

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Site F 6/9/2021 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
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Site I 6/9/2021 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
SiteJ 6/9/2021 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
Site K 6/9/2021 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
Site L 6/9/2021 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
SiteG 7/2/2021 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
Site H 7/2/2021 ND 7.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Attachment 2
July 19, 2021 Laboratory Analytical Results

AC87622 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: SEEP 1 UT SOUTH PRONG CLARK CREEK Sample ID: AC87622
County: Mecklenburg Collector: W BELL VisitlD PO Number#
Region: Mro Report To MRO Location ID: UTSPCC01 Date Received: 07/20/2021
River Basin CTB Collect Date: 07/19/2021 Priority COC Time Received: 08_35
Emergency Yes Collect Time: 10:20 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No Yes Sample Depth Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 7/23/21
Report Print Date: 07/28/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.2 °C 7/20/21 MSWIFT
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 2

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87622
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 2

AC87624 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: UT SOUTH PRONG CLARK CREEK Sample ID: AC87624
County: Mecklenburg Collector: W BELL VisitlD PO Number#
Region: Mro Report To MRO Location ID: UTSPCCO3 Date Received: 07/20/2021
River Basin CTB Collect Date: 07/19/2021 Priority COC Time Received: 08_35
Emergency Yes Collect Time: 10:40 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No Yes Sample Depth Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 7/23/21
Report Print Date: 07/28/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.1 °C 7/20/21 MSWIFT
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 2

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87624
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 2

AC87625 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: TRIP BLANKS Sample ID: AC87625
County: Collector: W BELL VisitlD PO Number#
Region: Mro Report To MRO Location ID: UTSPCCOT Date Received: 07/20/2021
River Basin Collect Date: 07/19/2021 Priority COC Time Received: 08_35
Emergency Yes Collect Time: 09:30 Sample Matrix: BLANKWATER Labworks LoginlD TASCENZOI
COC Yes/No Yes Sample Depth Loc.Type: Trip Blank Delivery Method NC Courier
Final Report Date: 7/23/21
Report Print Date: 07/28/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.1 °C 7/20/21 MSWIFT
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 2

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87625
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 2

AC87623 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: SEEP 2 UT SOUTH PRONG CLARK CREEK Sample ID: AC87623
County: Mecklenburg Collector: A PITNER VisitlD PO Number#
Region: Mro Report To MRO Location ID: UTSPCCO2 Date Received: 07/20/2021
River Basin CTB Collect Date: 07/19/2021 Priority COC Time Received: 08_35
Emergency Yes Collect Time: 10:30 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No Yes Sample Depth Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 7/23/21
Report Print Date: 07/28/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.1 °C 7/20/21 MSWIFT
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 2

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87623
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 7/20/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 2

Attachment 3
Jurisdictional Waters and Surface Water Sample Location Map

4N,"i Approximate #• -Both features north of C and D 'illj
= location of spring I ♦� not considered jurisdictional.
-Head cut observed — _ CPC Release Location
box. Both features dry, no water for
around C location. / I
-ysample collection.
-Considered / .♦ E \ OBenzene Isocontour(1 ug/L)
.'11a jurisdictional from �, TIP
Monitoring Well
• \
�, head cut at C. ` • _ -Head cut observed Deep Monitoring Well
_ i • just south of D • ,
., B Recovery Well
11
_ •• location.
Dry, no water for - ♦ 0 Proposed CMSWS Sample Location
• sample collection. - - -SW sample - p p
.4i f , .k' ,
p ,.1 • collected at D •Tribs/Intermittents
• k A }• t I / - - .;; ` •�� location. —Creeks •
1T�
x V �� -Considered =CPC Pipeline
•' �"�� w '�, D jurisdictonal from I-7 Parcels
�, e� , r a• i sri_: i �_ :� C head cut.
r
.. 1 ) Abiril 00111141° r` . , . . .
5-17-1.2 a't .16' ,' • • V,,,,
/ .' '
,ram•, .. . . f 5'4 �' Considered
; � �1 "tip;.:Considered
♦ !Ik : ♦ - -SW sample
- jurisdictional. ♦ 4
''s s ' ' collected.
-SW sample collected �' s � '
p - a ,..0144, 't, (Sample 1) ,�
!Sample 5). dRd am_ I y if(
liti
oncor T � ti
Huntersvdle_C �, .. f+4. - Seep 1 (collected .
_ 7/19/2021) • ,
. !!li - , -Considered 0 " , ♦ ,0 . ' `a� ':,�
V
�, aR r 4-, •fir '-jurisdictional. ♦ /
-- - - SW samples -41: i r a W
✓ See 1 Confluence
- collected (Sample ♦ p + -
I (collected 7/19/2021)
` (2, 3, and 4) 1. -14-Iv4 mil ♦ ,I, . / • ,
(:-..,:
' r
- ,� ` ' . •
�- �.. .♦ K •
- . .Seep ‘ Confluence
{, �.1\ ,� OIN‘ ♦ J \it
.� (collected 7/19/2021 p
'♦ wee 2 (cone, )
' '1 ;7/19/2021) 40 I ' -. ipok ► '�� '+ SW Sample Location (collected
lipfb t' *' *se t % ,,,,,,.., , 7/19/2021
L
1 w t, µ ,.
SW Sample Location
miiiiiiip\
* (collected 8/3/2021)
A+ill ,:'I�' /re A. Location of Observed
t� ;. Head Cut
c
.4v.41/4'' - i` '0001000--------- ,
♦ ' 0ron9�
I
J
♦
/
4—..• -•'1 .4111* . i,. 4 Ati-.4111‘ --- - PM
- ... So i c- ��B,IMI Can I G P G• C c grOW, IE /GDG6w DA DSo ME ,N 'a Agm3r1©,1 1�1,dad t'ta 6 3 I*1'rit ini itity
Chark ttalAeckk.nbu,9
STORM
Proposed Stream Sampling Locations 1" = 650, Figure
1,950
A-11j! Feet Colonial Pipeline SR 2448 / Pipeline ROW MAP SCALE: DATE: February 22 2021
•
Services
0 325 650 1 300 Huntersville, NC DRAWN BY: TRB

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87920
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87920
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87920
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4

AC87921 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: TRIP BLANK Sample ID: AC87921
County: Collector: B COSTNER VisitlD PO Number#
Region: Mooresville Report To MRO Location ID: TRIP 2 Date Received: 08/04/2021
River Basin Collect Date: 08/03/2021 Priority COMPLIANCE Time Received: 08_30
Emergency YES Collect Time: 08:45 Sample Matrix: BLANKWATER Labworks LoginlD TASCENZOI
COC Yes/No YES Sample Depth Loc.Type: Trip Blank Delivery Method NC Courier
Final Report Date: 8/9/21
Report Print Date: 08/10/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 0.3 °C 8/4/21 MSWIFT
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 J2 pg/L EPA624.1/8260C 8/5/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87921
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87921
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87921
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4

AC87922 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: UT NORTH PRONG CLARK CREEK Sample ID: AC87922
County: Mecklenburg Collector: W BELL VisitlD 1 PO Number#
Region: Mooresville Report To MRO Location ID: YADWB01 Date Received: 08/04/2021
River Basin YAD Collect Date: 08/03/2021 Priority COMPLIANCE Time Received: 08_30
Emergency YES Collect Time: 10:39 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No YES Sample Depth Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 8/9/21
Report Print Date: 08/10/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.4 °C 8/4/21 MSWIFT
MET
7439-92-1 Pb by ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 8/5/21 ESTAFFORD1
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 J2 pg/L EPA624.1/8260C 8/5/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87922
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87922
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87922
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4

AC87923 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: UT SOUTH PRONG CLARK CREEK Sample ID: AC87923
County: Mecklenburg Collector: W BELL VisitlD 2 PO Number#
Region: Mooresville Report To MRO Location ID: YADWBO2 Date Received: 08/04/2021
River Basin YAD Collect Date: 08/03/2021 Priority COMPLIANCE Time Received: 08_30
Emergency YES Collect Time: 11:10 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No YES Sample Depth 1 Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 8/9/21
Report Print Date: 08/10/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.4 °C 8/4/21 MSWIFT
MET
7439-92-1 Pb by ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 8/5/21 ESTAFFORD1
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 J2 pg/L EPA624.1/8260C 8/5/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87923
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87923
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87923
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4

AC87924 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: UT SOUTH PRONG CLARK CREEK Sample ID: AC87924
County: Mecklenburg Collector: W BELL VisitlD 3 PO Number#
Region: Mooresville Report To MRO Location ID: YADWBO3 Date Received: 08/04/2021
River Basin YAD Collect Date: 08/03/2021 Priority COMPLIANCE Time Received: 08_30
Emergency YES Collect Time: 11:20 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No YES Sample Depth 1 Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 8/9/21
Report Print Date: 08/10/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.4 °C 8/4/21 MSWIFT
MET
7439-92-1 Pb by ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 8/5/21 ESTAFFORD1
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 J2 pg/L EPA624.1/8260C 8/5/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87924
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87924
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87924
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4

AC87925 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: UT SOUTH PRONG CLARK CREEK Sample ID: AC87925
County: Mecklenburg Collector: W BELL VisitlD 4 PO Number#
Region: Mooresville Report To MRO Location ID: YADWBO4 Date Received: 08/04/2021
River Basin YAD Collect Date: 08/03/2021 Priority COMPLIANCE Time Received: 08_30
Emergency YES Collect Time: 11:27 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No YES Sample Depth 1 Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 8/9/21
Report Print Date: 08/10/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.4 °C 8/4/21 MSWIFT
MET
7439-92-1 Pb by ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 8/5/21 ESTAFFORD1
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 J2 pg/L EPA624.1/8260C 8/5/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87925
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87925
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87925
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4

AC87926 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: UT NORTH PRONG CLARK CREEK Sample ID: AC87926
County: Mecklenburg Collector: W BELL VisitlD 5 PO Number#
Region: Mooresville Report To MRO Location ID: YADWBO5 Date Received: 08/04/2021
River Basin YAD Collect Date: 08/03/2021 Priority COMPLIANCE Time Received: 08_30
Emergency YES Collect Time: 12:00 Sample Matrix: SURFACEWATER Labworks LoginlD TASCENZOI
COC Yes/No YES Sample Depth 1 Loc.Type: River/Stream Delivery Method NC Courier
Final Report Date: 8/9/21
Report Print Date: 08/10/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.4 °C 8/4/21 MSWIFT
MET
7439-92-1 Pb by ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 8/5/21 ESTAFFORD1
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 J2 pg/L EPA624.1/8260C 8/5/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87926
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87926
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87926
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4

AC87927 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc.Descr.: TRIP BLANK Sample ID: AC87927
County: Collector: W BELL VisitlD PO Number#
Region: Mooresville Report To MRO Location ID: MRO NLC Date Received: 08/04/2021
River Basin Collect Date: 08/03/2021 Priority COMPLIANCE Time Received: 08_30
Emergency YES Collect Time: 08:45 Sample Matrix: BLANKWATER Labworks LoginlD TASCENZOI
COC Yes/No Yes Sample Depth Loc.Type: Trip Blank Delivery Method NC Courier
Final Report Date: 8/9/21
Report Print Date: 08/10/2021
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS# Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.4 °C 8/4/21 MSWIFT
VOL
Volatile Organics in liquid
106-93-4 (EDB)1,2-Dibromoethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
630-20-6 1,1,1,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-55-6 1,1,1-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-34-5 1,1,2,2-Tetrachloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-00-5 1,1,2-Trichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-34-3 1,1-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-35-4 1,1-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
563-58-6 1,1-Dichloropropene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-61-6 1,2,3-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-18-4 1,2,3-Trichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
120-82-1 1,2,4-Trichlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-63-6 1,2,4-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
96-12-8 1,2-Dibromo-3-Chloropropane 5.0 <5.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
107-06-2 1,2-Dichloroethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
78-87-5 1,2-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-67-8 1,3,5-Trimethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
142-28-9 1,3-Dichloropropane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
594-20-7 2,2-Dichloropropane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-49-8 2-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-43-4 4-Chlorotoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
71-43-2 Benzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-86-1 Bromobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-97-5 Bromochloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-27-4 Bromodichloromethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-25-2 Bromoform 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-83-9 Bromomethane 2.0 <2.0 J2 pg/L EPA624.1/8260C 8/5/21 CJOHNSON
56-23-5 Carbon Tetrachloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-90-7 Chlorobenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-00-3 Chloroethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
67-66-3 Chloroform 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-87-3 Chloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 1 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87927
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
156-59-2 cis-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-01-5 cis-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
124-48-1 Dibromochloromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
74-95-3 Dibromomethane 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-71-8 Dichlorodifluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-41-4 Ethylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
87-68-3 Hexachlorobutadiene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-82-8 lsopropylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-38-3 m,p-Xylene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
541-73-1 m-Dichlorobenzene (1,3) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
1634-04-4 Methyl Tert-Butyl Ether 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-09-2 Methylene Chloride 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
91-20-3 Naphthalene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
104-51-8 n-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
103-65-1 n-Propylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-50-1 o-Dichlorobenzene (1,2) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
95-47-6 o-Xylene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
106-46-7 p-Dichlorobenzene (1,4) 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
99-87-6 p-lsopropyltoluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
135-98-8 sec-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
100-42-5 Styrene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
98-06-6 tert-Butylbenzene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
127-18-4 Tetrachloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
108-88-3 Toluene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
156-60-5 trans-1,2-Dichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
10061-02-6 trans-1,3-Dichloropropene 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
79-01-6 Trichloroethene 1.0 <1.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-69-4 Trichlorofluoromethane 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
75-01-4 Vinyl Chloride 2.0 <2.0 U pg/L EPA624.1/8260C 8/5/21 CJOHNSON
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Qua4ifier(Definitions
Sample ID: AC87927
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
VOL:VOA-J2-estimated-1 analyte(s)failed<LCL in the CV.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average,where at least one result is qualified with a "U".The PQL is used for the qualified result(S)to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies.The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present;too numerous to count(TNTC).TNTC is generally defined as>150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction.Value based upon the appropriate MPN Index and reported as a less than "<"valu
BB2 MPN-All wells or tubes gave positive reactions.Value based upon the MPN Index and reported as a greater than ">"value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO)depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity.This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/glutamic acid standard exceeded the range of 198±30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set.The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set.The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 4

NC DW(R,Laboratory Section 1Rgsurts/Sampre Comments/Quagfier(Definitions
Sample ID: AC87927
CAS# Analyte Name PQL Result/ Method Analysis
Qualifier Units Reference Date Validated by
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols(e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C)during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method.Th
J8 Temperature limits exceeded (samples frozen or>6°C)during storage,the data may not be accurate.
J9 The reported value is determined by a one-point estimation rather than against a regression equation.The estimated concentration
M Sample and duplicate results are "out of control".The sample is non-homogenous(e.g.,VOA soil).The reported value is the lower
N1 Presumptive evidence and estimated value.The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met(i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL*due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method-required matrix spike(MS)and/or matrix spike duplicate(MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*.The number value repot
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample.The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one-point estimation at II
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note:The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed-field error.
X3 Sampled, but analysis lost or not performed-lab error.
Y Elevated PQL*due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
WSS Chemistry Laboratory>>1623 Mail Service Center,Raleigh,NC 27699-1623 [phone]
"Not Detected"or"U"does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 4 of 4