MO_5885_19621_CA_RMR_20230524_Groundwater Monitoring Report

GROUNDWATER MONITORING REPORT

MOUNTAIN VIEW GAS HOUSE
3162 NC HIGHWAY 127, SE
HICKORY, CATAWBA COUNTY, NORTH CAROLINA
FACILITY ID NO. 00-0-000007767
GROUNDWATER INCIDENT NO. 19621/40446

Prepared For:

Quality Oil Company, LLC
P.O. Box 2736
Winston-Salem, North Carolina 27102

Prepared By:

Progress Environmental Group, Inc.
P.O. Box 5884
Winston-Salem, North Carolina 27113

Progress Project QUA402N.GW

May 24, 2023
P.O. Box 5884 • Winston-Salem, North Carolina 27113-5884
Office 336.722.9999 • Fax [phone]
www.progressenvironmental.com

May 24, 2023

Mr. Brad Newton
North Carolina Department of Environmental Quality
Division of Waste Management, UST Section
Mooresville Regional Office
610 East Center Street, Suite 301
Mooresville, North Carolina 28115

Subject: Groundwater Monitoring Report
Mountain View Gas House
3162 NC Highway 127, SE
Hickory, Catawba County, North Carolina
Incident Number 19621/40446
Progress Project QUA402N.GW

Dear Mr. Newton:

On behalf of Quality Oil Company, LLC, Progress Environmental Group, Inc. (Progress) is
submitting this Groundwater Monitoring Report for the above-referenced site. Included in
this report is a description of the field activities, the results obtained, and the conclusions
and recommendations.

This Groundwater Monitoring Report has been prepared in general accordance with the
Underground Storage Tank Section guidelines presented in the North Carolina Department of
Environmental Quality (NCDEQ) Guidelines for Assessment and Corrective Action, dated
January 19, 2021.

We appreciate your consideration and cooperation in the submission of this report. If you
have any questions concerning this report please feel free to contact us at [phone].

Sincerely,

PROGRESS ENVIRONMENTAL GROUP, INC.
Joseph S. Lawson III Jeffrey A. Ballsieper
Director of Ecological Services Director of Environmental Services
Licensed NC 1653

cc: Mr. Don McIver, Quality Oil Company, LLC

Attachment: Groundwater Monitoring Report and Appendices
P.O. Box 5884 • Winston-Salem, North Carolina 27113-5884
Office 336.722.9999 • Fax [phone]
www.progressenvironmental.com

May 24, 2023

Mr. Don McIver
Quality Oil Company, LLC
P.O. Box 2736
Winston-Salem, North Carolina 27102

Subject: Groundwater Monitoring Report
Mountain View Gas House
3162 NC Highway 127, SE
Hickory, Catawba County, North Carolina
Incident Number 19621/40446
Progress Project QUA402N.GW

Dear Mr. McIver:

On behalf of Quality Oil Company, LLC, Progress Environmental Group, Inc. (Progress) is
submitting this Groundwater Monitoring Report for the above-referenced site. Included in
this report is a description of the field activities, the results obtained, and the conclusions
and recommendations.

This Groundwater Monitoring Report has been prepared in general accordance with the
Underground Storage Tank Section guidelines presented in the North Carolina Department of
Environmental Quality (NCDEQ) Guidelines for Assessment and Corrective Action, dated
January 19, 2021.

We appreciate your consideration and cooperation in the submission of this report. If you
have any questions concerning this report please feel free to contact us at [phone].

Sincerely,

PROGRESS ENVIRONMENTAL GROUP, INC.
Joseph S. Lawson III Jeffrey A. Ballsieper
Director of Ecological Services Director of Environmental Services
Licensed NC 1653

Attachment: Groundwater Monitoring Report and Appendices

Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

1
GROUNDWATER MONITORING REPORT A SITE INFORMATION
Date of Report: May 24, 2023
Facility I.D.: 00-0-000007767
UST Incident Number (if known): 19621/40446
Site Name: Mountain View Gas House
Site Location: 3162 NC Highway 127, SE
Nearest City/Town: Hickory, North Carolina County: Catawba
UST Owner: Quality Oil Company, LLC
Address: P.O. Box 2736, Winston-Salem, North Carolina 27102 Phone: [phone]
Property Owner: Quality Oil Company, LLC
Address: P.O. Box 2736, Winston-Salem, North Carolina 27102 Phone: [phone]
Property Occupant: Mountain View Gas House
Address: 3162 NC Highway 127, SE, Hickory North Carolina 28602 Phone: [phone]
Consultant: Progress Environmental Group, Inc.
Address: P.O. Box 5884, Winston-Salem, North Carolina 27113 Phone: [phone]
Attention: Mr. Jeffrey A. Ballsieper, L.G.

Analytical Laboratory: Pace Analytical Services, Inc.
Address: 9800 Kincey Avenue, Huntersville, North Carolina 28078 Phone: [phone]

Release Information
Date Discovered: August 5, 1998 (initial) February 16, 2015 (subsequent)
Latitude: 35.8958º Longitude: -79.02301º
Estimated Quantity of Release: Unknown
Cause of Release: Unknown
Source of Release (e.g., Piping/UST): Former Underground Storage Tanks
Sizes and contents of UST system(s) from which the release occurred: One 12,000-gallon
gasoline UST, two 8,000-gallon gasoline USTs, and one 8,000-gallon diesel UST (Table B-1).
Risk Classification: High; Land Use Category: Commercial

Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

2
B EXECUTIVE SUMMARY

Progress Environmental Group, Inc. (Progress) was contracted by Quality Oil
Company, LLC to prepare the Groundwater Monitoring Report for the Mountain View
Gas House located at 3162 NC Highway 127, SE in Hickory, Catawba County, North
Carolina.

In an effort to reduce the residual dissolved phase groundwater contamination
beneath the site, Progress previously applied four kilograms (Kg) of Enviro-BAC
powder product (one Kg placed into each of the four proposed injection wells).

Progress was on-site to collect groundwater samples from the on-site monitoring
wells MW-1, MW-1A, MW-2, MW-4, and MW-5 and recovery wells RW-1 and RW-2,
on May 3, 2023. Based on the strong petroleum sheen, Progress did not collect a
groundwater sample from monitoring well MW-1A.

Pace Analytical Services, LLC (Pace) analyzed the groundwater samples for volatile
organic compounds (VOCs) by Standard Method 6200B including ethanol, MTBE, and
IPE.

Targeted petroleum hydrocarbons were detected in the groundwater samples
collected from monitoring well MW-4 and MW-5 at concentrations below their
respective NC2LGWQS.

Laboratory analysis of the groundwater samples collected from monitoring wells
MW-1 and MW-2, and recovery wells RW-1 and RW-2 detected petroleum-related
compounds that exceed their respective NC2LGWQS.

Based on the results of the groundwater sampling event, Progress makes the
following conclusions:

 On May 3, 2023, Progress collected and analyzed groundwater samples from
monitoring wells MW-1, MW-2, MW-4, and MW-5 and recovery wells RW-1
and RW-2 for VOCs using Standard Method 6200B.
 Laboratory analysis of the groundwater samples collected from monitoring
wells MW-1 and MW-2 and recovery wells RW-1 and RW-2 detected targeted
petroleum-related compounds at concentrations above their respective
NC2LGWQS.
 Groundwater data collected from monitoring and recovery wells MW-1 and
RW-2 generally exhibited petroleum concentration reductions since the
injection of the Enviro-BAC.
 The groundwater sample collected from monitoring well MW-1 exhibited a
benzene reduction of 98% and a Total BTEX reduction of 95% since the
most recent sampling event prior to the injection of the Enviro-BAC.
 The groundwater sample collected from monitoring well RW-2 exhibited a
benzene reduction of 95% and a Total BTEX reduction of 88% since the
most recent sampling event prior to the injection of the Enviro-BAC.
Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

3
 Progress collected and tested groundwater samples from two off-site water-
supply wells. The results of the analytical testing indicated the presence of
chloroform in the groundwater sample collected from water-supply well PW-1
at a concentration that does not exceed its NC2LGWQS.

Based on the results of the groundwater sampling event, Progress makes the
following recommendations:

 Based on review of the analytical results, it appears that the detected
concentrations in the groundwater samples collected from on-site monitoring
wells have generally decreased in the groundwater samples collected from
those wells that have been treated with Enviro-BAC. It appears that aquifer
conditions are supportive of bioremedial activity. Because the contaminant
plume appears to be stable and generally confined to an area proximal to the
USTs and detected concentrations are generally deceasing, Progress
recommends utilizing statistical modeling to demonstrate that the site can be
considered for regulatory closure.

Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

4
C TABLE OF CONTENTS

A SITE INFORMATION ........................................................................................ 1
B EXECUTIVE SUMMARY .................................................................................... 2
C TABLE OF CONTENTS ...................................................................................... 4
D SITE HISTORY AND CHARACTERIZATION ...................................................... 5
E PRESENTATION OF CURRENT SITE ASSESSMENT
INFORMATION/COMPARISON TO HISTORICAL ASSESSMENT
INFORMATION ................................................................................................ 6
F FREE PRODUCT REMOVAL............................................................................... 8
G MONITORED NATURAL ATTENUATION/NATURAL SOURCE ZONE
DEPLETION STATUS ........................................................................................ 8
H CONCLUSIONS ................................................................................................ 9
I STATEMENTS AND CERTIFICATION.............................................................. 10

FIGURES
Figure 1 -- Topographic Site Map
Figure 2 -- Site Map
Figure 3 -- Groundwater Flow Direction Map
Figure 4 -- Groundwater Analytical Results Map
Figure 5 -- Benzene Ispoleth Map
Figure 6 -- Total BTEX Ispoleth Map
Figure 7 -- MTBE Isopleth Map

TABLES
Table B-4 -- Summary of Detected Groundwater Analytical Results
Table B-4A -- Effectiveness of Bioremedial Injection
Table B-7 -- Well Construction Information

APPENDICES
Field Data Sheets
Laboratory Data Sheets and Chain-of-Custody Record
Analytical History

Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

5
D SITE HISTORY AND CHARACTERIZATION

Progress Environmental Group, Inc. (Progress) was contracted by Quality Oil
Company, LLC to prepare the Groundwater Monitoring Report for the Mountain View
Gas House located at 3162 NC Highway 127, SE in Hickory, Catawba County, North
Carolina. This report documents the results of the groundwater sampling event
conducted on May 3, 2023. The site location is depicted on Figure 1. A Site Map is
included as Figure 2. The site consists of an active convenience store which stores
petroleum products in underground storage tanks (USTs) and an aboveground
storage tank (AST) for retail sale. The site is located in a commercial and residential
area of Hickory. A documented release occurred from the previous UST system in
1998. An additional release from the current system was documented and repaired
in 2015. The site remains a High Risk due to the presence of active water-supply
wells in the vicinity.

Information regarding the on-site USTs and AST is presented below:
Table 1 Site History, UST/AST System Information
Tank No. Installation Date Removal Date Capacity (gallons) Construction Materials Contents Previous Contents
1 1980 1998 8,000 Single Wall Steel Gasoline Gasoline
2 1980 1998 8,000 Single Wall Steel Gasoline Gasoline
3 1980 1998 8,000 Single Wall Steel Gasoline Gasoline
4 1980 1998 8,000 Single Wall Steel Gasoline Gasoline
5 1998 Current 12,000 Single Wall Fiberglass Gasoline Gasoline
6 1998 Current 8,000 Single Wall Fiberglass Gasoline Gasoline
7 1998 Current 8,000 Single Wall Fiberglass Diesel Diesel
8 AST Current 500 Double Wall Steel Kerosene Kerosene
Table 2 Site History, UST Owner/Operator Information
Owner’s Name Address Phone Number Dates of Ownership
Quality Oil Company, LLC P.O. Box 2736, Winston-Salem, NC 27102 [phone] 1980 - Present

Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

6

E PRESENTATION OF CURRENT SITE ASSESSMENT
INFORMATION/COMPARISON TO HISTORICAL ASSESSMENT
INFORMATION

Regional Geology and Hydrogeology
According to the Geologic Map of North Carolina, the subject site is located in the
Inner Piedmont Belt of the Piedmont Physiographic Province of North Carolina. The
rocks beneath the site have been characterized as amphibolite and biotite gneiss.
Groundwater generally is stored in the pore space between individual grains of
residual soil and in the fractures within the underlying parent rock. Due to the intense
shearing associated with the thrust faulting in the area and the relatively shallow
depths to bedrock, it can be expected that the fractures play a major role in the flow
of groundwater in the subsurface.

Recharge to the water table is primarily by precipitation infiltrating the upper soils and
percolating downward, under the influence of gravity, to the groundwater table.
Typically, the water table is not a level surface, but a subdued reflection of the land
surface. However, the depth to the water table is not constant, and depends on many
factors, which include the amount of rainfall, the permeability of the soil, and the
amount of groundwater being pumped in the area.

Site Geology and Hydrogeology
Based on our review of the topographic map and on-site observation, the site is
located near the top of a northeast-southwest trending ridge. Groundwater
generally flows in directions sub-parallel to the ground surface slopes and under the
influence of gravity toward points of discharge such as creeks, swamps, drainage
swales, or pumped groundwater wells. Based on topographic inference,
groundwater beneath the site most likely flows to the east-southeast. An unnamed
tributary to Hop Creek is located approximately 1,700 feet toward the southeast as
shown on the topographic map (Figure 1).
Groundwater Flow

The depth to the groundwater surface in select monitoring and recovery wells was
measured prior to the well purging using a decontaminated electric sounder. The
tops of casing of the wells were previously surveyed relative to a benchmark by
others. The relative groundwater elevations are shown in Table B-7. Groundwater
elevations are depicted on Figure 3. Based on information collected during the most
recent sampling event, the groundwater flow direction appears to be generally to
the east beneath the site.

Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

7
Groundwater Sampling Activities

In an effort to reduce the residual dissolved phase groundwater contamination
beneath the site, Progress previously implemented an injection strategy at the site.
Specifically, Progress injected Enviro-BAC, a proprietary bioremedial product, within
the contaminant plume at the site. Prior to injection activities Progress prepared and
submitted a Notice of Intent to the Division of Water Resources-Underground
Injection Control (UIC) Program. On February 22, 2019, Progress applied four
kilograms (Kg) of Enviro-BAC powder product (one Kg placed into each of the four
proposed injection wells).

Progress placed one kilogram of Enviro-BAC mixed in approximately five gallons of
fresh water into four monitoring wells that have historically exhibited elevated
concentrations of targeted petroleum hydrocarbons (MW-1, MW-1A, RW-1, and RW-
2).

Progress was on-site to collect groundwater samples from the on-site monitoring
wells MW-1, MW-1A, MW-2, MW-4, and MW-5 and recovery wells RW-1 and RW-2,
on May 3, 2023. Prior to sampling the monitoring wells, the depth-to-groundwater
from the top of each well casing was measured in the monitoring wells using an
electric water level and oil/water interface indicator. The meter was decontaminated
between uses according to the following procedure:

 washed with potable water and phosphate-free detergent solution;
 rinsed with potable water; and
 rinsed with distilled water.

The monitoring and recovery wells were purged by bailing an equivalent of three
volumes of water from the wells using a one-liter capacity disposable polypropylene
bailer. The wells were then sampled using a dedicated, disposable bailer for each
well. The groundwater samples were decanted into laboratory-prepared containers.
The sample containers were appropriately labeled and delivered to Pace Analytical
Laboratories (Pace) in Kernersville, North Carolina for analysis.

Laboratory Analytical Results

Pace analyzed the groundwater samples for volatile organic compounds (VOCs) by
Standard Method 6200B including ethanol, MTBE, and IPE. A summary of the
groundwater analytical results is presented in Table B-4 and on Figure 4. Based on
the strong petroleum sheen, Progress did not collect a groundwater sample from
monitoring well MW-1A. Laboratory analysis of the groundwater samples collected
from monitoring wells MW-4 and MW-5 did not exhibit targeted compounds at
concentrations that exceed their respective North Carolina 2L Groundwater Quality
Standards (NC2LGWQS).

Laboratory analysis of the groundwater sample collected from monitoring well MW-1
detected benzene (16.5 µg/L), naphthalene (93.1 µg/L), n-propylbenzene (135
Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

8
µg/L), 1,2,4-trimethylbenzene (972 µg/L), and total xylenes (508.9 µg/L) at
concentrations that exceed their respective NC2LGWQS.

Laboratory analysis of the groundwater sample collected from monitoring well MW-2
detected benzene (20.9 µg/L) and naphthalene (32.6 µg/L) at concentrations that
exceed their respective NC2LGWQS.

Laboratory analysis of the groundwater sample collected from recovery well RW-1
detected benzene (1.4 µg/L) at a concentration that exceeds its NC2LGWQS.

Laboratory analysis of the groundwater sample collected from recovery well RW-2
detected benzene (21.1 µg/L), naphthalene (67.9 µg/L), and 1,2,4-trimethylbenzene
(491 µg/L) at concentrations that exceed their respective NC2LGWQS.

F FREE PRODUCT REMOVAL

Free product was not measured in the monitoring wells installed in the source area
of the plume. Previous operation of the remediation system appears to have
effectively removed residual free product beneath the site.

G MONITORED NATURAL ATTENUATION/NATURAL SOURCE ZONE
DEPLETION STATUS

Progress collected groundwater samples from the monitoring and recovery wells
MW-1, MW-2, MW-4, MW-5, RW-1, RW-2, and water-supply wells PW-1 and PW-3
on May 3, 2023.

Pace analyzed the groundwater samples for VOCs by Standard Method 6200B
including ethanol, MTBE, and IPE. A summary of the groundwater analytical results
is presented in Table B-4 and on Figure 4.

Laboratory analysis of the groundwater sample collected from monitoring wells MW-
4 and MW-5 detected petroleum-related compounds at concentrations below their
respective NC2LGWQS.

Laboratory analysis of the groundwater samples collected from monitoring wells
MW-1 and MW-2 and recovery wells RW-1 and RW-2 detected petroleum-related
compounds that exceed their respective NC2LGWQS.

Laboratory analysis of the groundwater samples collected from water-supply wells
PW-1 and PW-3 did not detect targeted compounds above the laboratory detection
limit, with the exception of chloroform in the groundwater sample collected from
water-supply well PW-1. Please note, the concentration of chloroform is well below
its NC2LGWQS.

Historically, free product has been measured in monitoring wells MW-1 and MW-1A.
Free product has not been detected at the site during the most recent groundwater
Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

9
sampling events. The groundwater contaminant plume appears to be migrating to
the east beneath the site. The size and orientation of the groundwater plume
appears to be unchanged since the most recent sampling events. However, based
on limited sampling, the current extent of the groundwater plume is inferred from
both current and historical sampling results. Groundwater concentrations detected
in the groundwater samples collected from monitoring wells within the plume appear
to be generally decreasing since the implementation of bioremedial groundwater
remediation activities. Table B-4A depicts the effectiveness of the injection of
Enviro-BAC into monitoring wells MW-1, MW-1A and RW-2.

H CONCLUSIONS

Based on the results of the groundwater sampling event, Progress makes the
following conclusions:

 On May 3, 2023, Progress collected and analyzed groundwater samples from
monitoring wells MW-1, MW-2, MW-4, and MW-5 and recovery wells RW-1
and RW-2 for VOCs using Standard Method 6200B.
 Laboratory analysis of the groundwater samples collected from monitoring
wells MW-1 and MW-2 and recovery wells RW-1 and RW-2 detected targeted
petroleum-related compounds at concentrations above their respective
NC2LGWQS.
 Groundwater data collected from monitoring and recovery wells MW-1 and
RW-2 generally exhibited petroleum concentration reductions since the
injection of the Enviro-BAC.
 The groundwater sample collected from monitoring well MW-1 exhibited a
benzene reduction of 98% and a Total BTEX reduction of 95% since the
most recent sampling event prior to the injection of the Enviro-BAC.
 The groundwater sample collected from monitoring well RW-2 exhibited a
benzene reduction of 95% and a Total BTEX reduction of 88% since the
most recent sampling event prior to the injection of the Enviro-BAC.
 Progress collected and tested groundwater samples from two off-site water-
supply wells. The results of the analytical testing indicated the presence of
chloroform in the groundwater sample collected from water-supply well PW-1
at a concentration that does not exceed its NC2LGWQS.

Based on the results of the groundwater sampling event, Progress makes the
following recommendations:

 Based on review of the analytical results, it appears that the detected
concentrations in the groundwater samples collected from on-site monitoring
wells have generally decreased in the groundwater samples collected from
those wells that have been treated with Enviro-BAC. It appears that aquifer
conditions are supportive of bioremedial activity. Because the contaminant
plume appears to be stable and generally confined to an area proximal to the
USTs and detected concentrations are generally deceasing, Progress
Groundwater Monitoring Report
Mountain View Gas House
Hickory, Catawba County, North Carolina
Progress Project QUA402N.GW
May 24, 2023

10
recommends utilizing statistical modeling to demonstrate that the site can be
considered for regulatory closure.

I STATEMENTS AND CERTIFICATION

1 Enter the date the monitoring report was due. 5/24/23. Will this report be
submitted after the established due date?
YES NO
2 Was any required information from the above template missing from this report? YES NO

3 If applicable, will any of the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? (within a reasonable margin of error)
YES NO
Groundwater contamination in excess of the North Carolina 2L Groundwater Quality Standards
persists in the source area and downgradient of the source area. Remedial system has been
inoperable for past couple of years due to age. Implemented bioremedial strategy.
4 Does any known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation?
YES NO
5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source? YES NO
6 Certification:
I, Jeffrey A. Ballsieper, a Licensed Geologist for Progress Environmental Group, Inc., do certify that
the information contained in this report is correct and accurate to the best of my knowledge.

_____________________________________
Jeffrey A. Ballsieper, L.G.
Director of Environmental Services

Progress Environmental Group, Inc. is licensed to practice geology in North Carolina. The
certification number of the corporation is C-552.

FIGURES

Figure 1
Topographic Site Map
Mountain View Gas House
3162 NC Highway 127 SE
Hickory, North Carolina
P.O. Box 5884
Winston-Salem, NC 27113
Telephone: [phone]
Fax: [phone]
www.progressenvironmental.com
Hickory, N.C.
Longview, N.C.
United States Department of the Interior
United States Geological Survey
7.5 Minute Series Topographic Map
Contour Interval: 20 feet
Scale: 1:24,000
Date: 2013
Project: Mt. View Gas House
Client: Quality Oil Company,
LLC
Progress Job #: QUA400N.GW
Date: May 2023
0'
GRAPHIC SCALE
50'100'
1" =50'
50'ProgressENVIRONMENTAL GROUP, INC.JSLQUA402N.GWJABAS SHOWNMAY 2023Figure 2.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]FIGURE 2SITE MAPMOUNTAIN VIEW GAS HOUSE3162 HIGHWAY 127, SEHICKORY, NORTH CAROLINA%db("MAG-DATE")PROJECTMW-3
Kerosene AST
NC Highway 127
SERVICE ROAD
DREAMY HOLLOW
APRTMENTS
CHEE AND PING CHUNG
QUALITY OIL COMPANY
JESSICA AND MICHAEL EDWARDS
STEPHEN CRAIG
EL SARAPE
RESTAURANT
DUMPSTER
MW-10 RW-6
RW-2
OW-1
MW-9
MW-11
RW-5
MW-15
MW-4
RW-3
MW-5
MW-7
MW-6
MW-8
MW-"8"
MW-17
BOB NEILL &
ASSOICATES, INC.
PUMP ISLANDS MOUNTAIN VIEW GAS HOUSEGRASS ASPHALT
WOODS
ROSEMARY CONDEELIS
BROOKWOOD LANEMW-14
MW-21
MW22
MW-23
MW-13
GRASS
MW-19
MW-20
MW-18
MW-17
MW-4
RW-1
TYPE II MONITORING WELL
TYPE III MONITORING WELL
RECOVERY WELL
MW-12
RW-4
MW-2
MW-16
MW-1
RW-1
MW-1A
MAY 2023
0'
GRAPHIC SCALE
50'100'
1" =50'
50'
GROUNDWATER CONTOUR ELEVATION
CALCULATED GROUNDWATER FLOW DIRECTION
MW-5(65.91)ProgressENVIRONMENTAL GROUP, INC.JSLQUA402N.GWJABAS SHOWNMAY 2023Figure 3.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]FIGURE 3GROUNDWATER FLOW DIRECTION MAPMOUNTAIN VIEW GAS HOUSE3162 HIGHWAY 127, SEHICKORY, NORTH CAROLINA%db("MAG-DATE")PROJECTMW-3
Kerosene AST
NC Highway 127
SERVICE ROAD
DREAMY HOLLOW
APRTMENTS
CHEE AND PING CHUNG
QUALITY OIL COMPANY
JESSICA AND MICHAEL EDWARDS
STEPHEN CRAIG
EL SARAPE
RESTAURANT
DUMPSTER
MW-10 RW-6
RW-2(68.67)
OW-1
MW-9
MW-11
RW-5
MW-15
MW-4(NM)
RW-3
MW-7
MW-6
MW-8
MW-"8"
MW-17
BOB NEILL &
ASSOICATES, INC.
PUMP ISLANDS MOUNTAIN VIEW GAS HOUSEGRASS ASPHALT
WOODS
ROSEMARY CONDEELIS
BROOKWOOD LANEMW-14
MW-21
MW22
MW-23
MW-13
GRASS
MW-19
MW-20
MW-18
RW-1
TYPE II MONITORING WELLAND RELATIVE GROUNDWAER
ELEVATION
TYPE III MONITORING WELL
RECOVERY WELL
MW-12
RW-4
MW-2(71.25)
MW-16
MW-1A(69.32)
RW-1(66.86)
MW-1(68.52)
65
MW-1(65.85)
MW-4
Please note, water level measurements in monitoring wells MW-1 and MW-4 were not used in the construction of the groundwater flow map
70
MAY 202365
6668716967
0'
GRAPHIC SCALE
50'100'
1" =50'
50'ProgressENVIRONMENTAL GROUP, INC.JSLQUA402N.GWJABAS SHOWNMAY 2023Figure 4.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]FIGURE 4GROUNDWATER ANALYTICAL RESULTS MAPMOUNTAIN VIEW GAS HOUSE3162 HIGHWAY 127, SEHICKORY, NORTH CAROLINA%db("MAG-DATE")PROJECTKerosene AST
NC Highway 127
SERVICE ROAD
DREAMY HOLLOW
APRTMENTS
QUALITY OIL COMPANY
JESSICA AND MICHAEL EDWARDS
STEPHEN CRAIG
DUMPSTER
OW-1
RW-5
MW-15
RW-3
MW-"8"
MW-17
BOB NEILL &
ASSOICATES, INC.
PUMP
ISLANDS MOUNTAIN VIEW GAS HOUSEGRASS
ASPHALT
ROSEMARY CONDEELIS
BROOKWOOD LANEMW-14
MW-21
MW22
MW-23
MW-13
GRASS
MW-19
MW-20
MW-18
MW-17
MW-4
RW-1
TYPE II MONITORING WELL
TYPE III MONITORING WELL
RECOVERY WELL
MW-12
RW-4
MW-16
MW-2
Benzene 20.9 ug/Lsec-Butylbenzene 3.3 ug/LIPE 12.1 ug/LEthylbenzene 0.82 ug/LIsopropylbenzene 4.0 ug/LMTBE 2.8 ug/LNaphthalene 32.6 ug/Ln-Propylbenzene 1.5 ug/L1,2,4-Trimethylbenzene 29.8 ug/L1,3,5-Trimethylbenzene 6.2 ug/LTotal xylenes 13.1 ug/L
MW-5
sec-Butylbenzene 0.63 ug/LIPE 0.75 ug/LMTBE 5.2 ug/L
RW-2
Benzene 21.1 ug/LEthylbenzene 142 ug/LIPE 12.3 ug/L
iso-Propylbenzene 17.5 ug/LNaphthalene 67.9 ug/Ln-Propylbenzene 53.7 ug/L1,2,4-Trimethylbenzene 491 ug/L1,3,5-Trimethylbenzene 119 ug/LTotal Xylenes 198 ug/L
RW-2
MW-1A
MW-1
RW-6
MW-10
MW-11
MW-1A
Not Sampled Sheen Noted
MW-6
MW-7
MW-4
MTBE 0.75 ug/L
MW-3
MAY 2023MW-5
MW-1
Benzene 16.5 ug/LIPE 6.8 ug/LEthylbenzene 185 ug/Liso-Propylbenzene 35.5 ug/LNaphthalene 93.1 ug/Ln-Propylbenzene 135 ug/L1,2,4-Trimethylbenzene 972 ug/L
1,3,5-Trimethylbenzene 322 ug/LTotal xylenes 508.9 ug/L
RW-1
Benzene 1.4 ug/Lsec-Butylbenzene 0.88 ug/LIPE 41.1 ug/LMTBE 12.7 ug/L1,2,4-Trimethylbenzene 1.9 ug/L
1,3,5-Trimethylbenzene 0.54 ug/L
0'
GRAPHIC SCALE
50'100'
1" =50'
50'ProgressENVIRONMENTAL GROUP, INC.JSLQUA402N.GWJABAS SHOWNMAY 2023Figure 5.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]FIGURE 5BENZENE ISOPLETH MAPMOUNTAIN VIEW GAS HOUSE3162 HIGHWAY 127, SEHICKORY, NORTH CAROLINA%db("MAG-DATE")PROJECTMW-3
Kerosene AST
NC Highway 127
SERVICE ROAD
DREAMY HOLLOW APRTMENTS
CHEE AND PING CHUNG
QUALITY OIL COMPANY
JESSICA AND MICHAEL EDWARDS
STEPHEN CRAIG
EL SARAPE
RESTAURANT
DUMPSTER
MW-10 RW-6
RW-2(21.1)
OW-1 MW-9
MW-11
RW-5
MW-15
MW-4(BQL)
RW-3
MW-5(BQL)
MW-7MW-6
MW-8
MW-"8"
MW-17
BOB NEILL &
ASSOICATES, INC.
PUMP ISLANDS MOUNTAIN VIEW GAS HOUSEGRASS ASPHALT
WOODS
ROSEMARY CONDEELIS
BROOKWOOD LANEMW-14
MW-21
MW22
MW-23
MW-13
GRASS
MW-19
MW-20
MW-18
MW-12
RW-4
MW-2(20.9)
MW-16
MW-1(16.5)
RW-1(1.4)
MW-1A(NS)
TYPE II MONITORING WELL LOCATION
AND BENZENE CONCENTRATION (ppb)
TYPE III MONITORING WELL LOCATION
AND BENZENE CONCENTRATION (ppb)
RECOVERY WELL LOCATION AND
BENZENE CONCENTRATION (ppb)
APPROXIMATE FORMER UST LOCATION
BENZENE ISOCONCENTRATION CONTOUR
APPROXIMATE CURRENT UST LOCATION
MW-4(BQL)
MW-2(0.90)
10
BQL
MAY 2023RW-1(0.69)
Please note, MW-4 was not used in the construction of the benzene isopleth map.
0'
GRAPHIC SCALE
50'100'
1" =50'
50'ProgressENVIRONMENTAL GROUP, INC.JSLQUA402N.GWMAY 2023JABAS SHOWNMAY 2023Figure 6.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]FIGURE 6TOTAL BTEX ISOPLETH MAPMOUNTAIN VIEW GAS HOUSE3162 HIGHWAY 127, SEHICKORY, NORTH CAROLINA%db("MAG-DATE")PROJECTMW-3
Kerosene AST
NC Highway 127
SERVICE ROAD
DREAMY HOLLOW
APRTMENTS
CHEE AND PING CHUNG
QUALITY OIL COMPANY
JESSICA AND MICHAEL EDWARDS
STEPHEN CRAIG
EL SARAPE
RESTAURANT
DUMPSTER
MW-10 RW-6
RW-2(361.1)
OW-1
MW-9
MW-11
RW-5
MW-15
MW-4(BQL)
RW-3
MW-5(BQL)
MW-7MW-6
MW-8
MW-"8"
MW-17
BOB NEILL &
ASSOICATES, INC.
PUMP
ISLANDS MOUNTAIN VIEW GAS HOUSEGRASS ASPHALT
WOODS
ROSEMARY CONDEELIS
BROOKWOOD LANEMW-14
MW-21
MW22
MW-23
MW-13
GRASS
MW-19
MW-20
MW-18
TYPE II MONITORING WELL LOCATION AND
TOTAL BTEX CONCENTRATION (ppb)
TYPE III MONITORING WELL LOCATION
AND TOTAL BTEX CONCENTRATION (ppb)
RECOVERY WELL LOCATION AND
TOTAL BTEX CONCENTRATION (ppb)
MW-12
RW-4
MW-2(34.82)
MW-16
MW-1(710.4)
RW-1(1.4)
MW-1A
(NS)
MW-2(0.90)
RW-1(0.69)
MW-4(BQL)
APPROXIMATE CURRENT UST LOCATION
TOTAL BTEX ISOCONCENTRATION CONTOUR (ppb)
APPROXIMATE FORMER UST LOCATION
100
BQL
500
Please note, concentrations detected in monitoring well MW-4 not used in the construction of the isopleth map.
0'
GRAPHIC SCALE
50'100'
1" =50'
50'ProgressENVIRONMENTAL GROUP, INC.JSLQUA402N.GWJABAS SHOWNMAY 2023Figure 7.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE [phone] FAX [phone]FIGURE 7MTBE ISOPLETH MAPMOUNTAIN VIEW GAS HOUSE3162 HIGHWAY 127, SEHICKORY, NORTH CAROLINA%db("MAG-DATE")PROJECTMW-3Kerosene AST
NC Highway 127
SERVICE ROAD
DREAMY HOLLOW
APRTMENTS
CHEE AND PING CHUNG
QUALITY OIL COMPANY
JESSICA AND MICHAEL EDWARDS
STEPHEN CRAIG
EL SARAPE
RESTAURANT
DUMPSTER
MW-10
RW-6
RW-2(BQL)
OW-1 MW-9
MW-11
RW-5
MW-15
MW-4(0.75)
RW-3
MW-5
(5.2)
MW-7
MW-6
MW-8
MW-"8"
MW-17
BOB NEILL &
ASSOICATES, INC.
PUMP
ISLANDS MOUNTAIN VIEW GAS HOUSEGRASS ASPHALT
WOODS
ROSEMARY CONDEELIS
BROOKWOOD LANEMW-14
MW-21
MW22
MW-23
MW-13
GRASS
MW-19
MW-20
MW-18
TYPE II MONITORING WELL LOCATION
AND MTBE CONCENTRATION (ppb)
TYPE III MONITORING WELL LOCATION
AND MTBE CONCENTRATION (ppb)
RECOVERY WELL LOCATION AND
MTBE CONCENTRATION (ppb)
MW-12
RW-4
MW-2(2.8)
MW-16
MW-1(BQL)
RW-1(12.7)
MW-1A(NS)
RW-1(11.5)
MW-4(BQL)
MW-2(0.97)
APPROXIMATE FORMER UST LOCATION
MTBE ISOCONCENTRATION CONTOUR
APPROXIMATE CURRENT UST LOCATION
Please note, concentrations detected in monitoring well MW-4 were used in the construction of the isopleth map
20
MAY 2023BQL
BQL

TABLES
Well Number Sampling Date
Depth to
Groundwater
(ft. TOC)
10/27/16 36.70 737 BQL BQL 1,460 125 128 BQL 487 BQL 415 53.0 BQL BQL 4,240 2,980 919 7,030
02/15/17 37.51 605 BQL BQL 1,660 165 BQL BQL 363 BQL 378 BQL BQL BQL 3,240 2,610 1,660 8,090
05/16/17 35.82 625 BQL BQL 1,300 170 99.0 179 337 BQL 319 690 BQL BQL 1,560 2,550 796 6,030
08/31/17 34.76 1,010 BQL BQL 1,360 186 94 BQL 288 BQL 328 BQL BQL BQL 1,600 2,340 708 6,500
07/31/18 31.61
02/22/19 NM
03/27/19 28.18 198 BQL BQL 1,050 63.6 96.4 BQL 423 BQL 357 BQL BQL BQL 147 2,320 752 4,200
12/11/19 33.95 142 BQL BQL 922 95.0 108 175 339 BQL 386 BQL BQL BQL 51.0 2,840 819 3,690
07/09/20 29.89 37.2 BQL BQL 335 45.8 78.0 BQL 198 62.0 263 36.0 BQL BQL 13.2 2,450 693 1,240
12/04/20 30.29 54.5 BQL BQL 313 15.7 79.9 BQL 202 BQL BQL BQL BQL BQL BQL 2,280 761 1,157
05/26/21 30.01 30.7 BQL BQL 141 BQL 79.0 BQL 118 BQL 372 BQL BQL BQL BQL 2,500 898 347.4
11/.23/21 35.01 72.3 BQL 563 155 13.0 129 BQL 138 BQL BQL 351 BQL BQL BQL 3,970 1,360 400.2
05/18/22 35.67 64.1 BQL BQL 162 BQL 132 BQL 122 BQL 548 BQL BQL BQL BQL 3,420 1,260 408.8
11/29/22 35.09 35.2 BQL BQL 350 BQL 106 BQL 165 BQL 500 753 BQL BQL BQL 2,930 1,160 990.2
05/03/23 32.34 16.5 BQL BQL 185 6.8 35.5 BQL 93.1 BQL 135 BQL BQL BQL BQL 972 322 508.9
10/27/16 37.02
02/15/17 37.40
05/16/17 35.66 1,140 BQL BQL 1,970 300 610 BQL 419 BQL 175 BQL BQL BQL 3,130 1,420 378 8,800
08/31/17 34.40 318 BQL BQL 2,820 BQL 143 BQL 1,110 BQL 510 BQL BQL BQL 2,030 4,370 1,110 14,600
07/31/18 32.21 240 BQL BQL 953 188 BQL BQL 148 BQL 303 BQL BQL BQL 453 2,060 660 4,290
02/22/19 NM
03/27/19 27.97 44.0 BQL BQL 206 BQL 36 BQL 139 BQL 148 BQL BQL BQL 25 1,100 328 718
12/11/19 33.87 209 BQL BQL 426 81.0 69.0 82.5 253 BQL 255 BQL BQL BQL 43.0 2,100 635 1,290
07/09/20 29.66 48.0 BQL BQL 297 22.4 45.7 BQL 140 35.4 151 39.0 BQL BQL 10.1 1,300 404 868
12/04/20 30.18 90.4 BQL BQL 232 18.2 42.4 BQL 142 BQL BQL BQL BQL BQL 9.8 1,300 408 682.4
05/26/21 29.82 40.9 BQL BQL 212 8.6 47.1 BQL 168 BQL BQL BQL BQL BQL BQL 1,490 453 568.2
11/23/21 34.94 86.2 BQL BQL 473 16.4 100 BQL 301 BQL 401 BQL BQL BQL BQL 3,030 912 1,577
05/18/22 35.50 72.0 BQL BQL 461 24.0 88.2 BQL 276 BQL 313 BQL BQL BQL BQL 2,370 711 1,478.9
11/29/22 34.94 77.7 39.0 BQL 414 BQL 82.8 BQL 213 BQL 260 BQL BQL BQL 8.3 2,020 613 1,280.5
05/03/23 32.11 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
10/27/16 34.06 115 BQL BQL BQL 12.0 0.9 BQL 5.6 BQL BQL BQL BQL BQL BQL 4.5 0.6 9.9
02/15/17 35.58 85.2 BQL BQL 0.62 5.41 1.72 BQL 1.75 BQL BQL BQL BQL BQL BQL 2.86 1.06 8.34
05/16/17 34.34 127 BQL BQL 117 15.5 17.6 79.2 8.6 2.6 43.5 6.5 3.1 BQL 15.3 310 103 839
08/31/17 32.80 979 BQL BQL 65 168 34.0 41.9 138 4.18 58 BQL 4.7 BQL 40 525 157 888
07/31/18 30.21 762 BQL BQL 237 163 17 57.3 67.8 BQL 38.5 BQL BQL BQL 146 264 77.8 1,070
03/27/19 24.02 404 BQL BQL 119 52.0 BQL 39.2 44.0 BQL 22.0 BQL BQL BQL 176 336 116 855
12/11/19 30.92 108 BQL BQL 33.2 43.4 8.0 23.0 32.4 BQL 13.9 BQL BQL BQL 6.95 76.6 28.1 32.5
07/09/20 25.89 135 BQL BQL 42.1 35.7 15.2 BQL 39.8 6.40 20.3 3.75 BQL BQL 26.2 178.0 78.7 363
12/04/20 26.37 105 BQL BQL 10.0 26.7 13.6 7.3 42.8 BQL BQL BQL BQL BQL 9.2 148 59.2 190
05/26/21 25.33 26.4 BQL BQL 0.93 10.7 3.4 3.4 15.3 BQL BQL BQL BQL BQL 0.76 13.5 BQL 31.6
11/23/21 32.29 3.3 BQL BQL BQL 7.4 2.5 2.5 6.8 BQL 3.2 8.0 2.6 BQL BQL 6.8 BQL 1.0
05/18/22 33.80 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/29/22 32.70 0.90 BQL BQL BQL 3.9 BQL 0.97 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/03/23 29.03 20.9 BQL BQL 0.82 12.1 4.0 2.8 32.6 BQL 1.5 BQL 3.3 BQL BQL 29.8 6.2 13.1
MW-3 10/27/16 36.78 11.0 BQL BQL 41.7 0.8 5.7 11.7 24.4 1.0 3.4 BQL 0.8 BQL BQL 81.3 15.2 168
10/27/16 38.45 1.2 BQL BQL BQL 3.8 BQL 1.1 0.7 BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/16/17 37.00 BQL BQL BQL BQL 0.8 BQL 3.0 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
08/31/17 36.05 BQL BQL BQL BQL 1.39 BQL 1.36 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
07/31/18 34.07 BQL BQL BQL BQL 0.84 BQL 3.89 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
03/27/19 30.72 0.63 BQL BQL BQL 3.06 BQL 3.73 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
12/11/19 35.78 BQL BQL BQL BQL 1.4 BQL 3.0 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
07/09/20 32.22 BQL BQL BQL BQL 2.41 BQL 5.04 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
12/4/820 32.72 BQL BQL BQL BQL 0.83 BQL 1.0 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/26/21 32.55 BQL BQL BQL BQL BQL BQL 0.9 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/23/21 36.88 BQL BQL BQL BQL BQL BQL 1.1 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/18/22 37.07 BQL BQL BQL BQL BQL BQL 0.68 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/29/22 36.79 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/03/23 34.29 BQL BQL BQL BQL BQL BQL 0.75 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
10/27/16 37.96 BQL BQL BQL BQL BQL BQL 14.0 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
02/15/17 38.71 BQL BQL BQL BQL BQL BQL 25 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/16/17 37.20 BQL BQL BQL BQL 0.8 0.6 43.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
07/31/18 34.37 BQL BQL BQL BQL BQL BQL 3.27 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
03/27/19 31.84 BQL BQL BQL BQL BQL BQL 1.28 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
12/11/19 35.98 BQL BQL BQL BQL BQL BQL 4.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
07/09/20 32.60 BQL BQL BQL BQL BQL BQL 8.22 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
12/04/20 33.02 BQL BQL BQL BQL BQL BQL 6.2 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/26/21 32.84 BQL BQL BQL BQL BQL BQL 0.78 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/23/21 36.88 0.55 BQL BQL BQL 1.4 0.63 15.0 BQL BQL BQL BQL 1.5 BQL BQL 0.55 BQL BQL
05/18/22 37.10 BQL BQL BQL BQL 0.61 BQL 7.9 BQL BQL BQL BQL 0.67 BQL BQL BQL BQL BQL
11/29/22 36.80 0.91 BQL BQL BQL 1.20 0.85 9.4 BQL BQL BQL BQL 2.0 BQL BQL BQL BQL BQL
05/03/23 35.52 BQL BQL BQL BQL 0.75 BQL 5.2 BQL BQL BQL BQL 0.63 BQL BQL BQL BQL BQL
MW-6 10/27/16 36.15 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
MW-7 10/27/16 36.50 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
MW-8 10/27/16 28.09 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
MW-9 10/27/16 29.80 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
MW-10 10/27/16 35.17 BQL BQL BQL BQL BQL BQL 4.0 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
MW-11 10/27/16 35.47 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
10/27/16 NM 3.6 BQL BQL 7.4 11.0 1.6 29.1 7.6 BQL 2.1 BQL 1.2 BQL BQL 13.5 3.1 7.6
02/15/17 NM 3.14 BQL BQL 9.54 13.0 1.88 22.5 4.56 BQL 2.95 BQL 1.24 BQL BQL 9.64 5.0 6.0
05/25/17 NM BQL BQL BQL BQL 12.0 BQL 21.5 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
08/31/17 29.08 1.69 BQL BQL 1.0 16.2 73 15.5 6.41 BQL 0.53 BQL 1.09 BQL BQL 5.39 1.61 2.0
07/31/18 NM 0.63 BQL BQL BQL 5.72 BQL 3.50 0.74 BQL BQL BQL BQL BQL BQL 0.64 BQL BQL
02/22/19 NM
03/01/19 NM BQL BQL BQL BQL 0.76 BQL 0.60 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
12/11/19 28.25 1.3 BQL BQL BQL 81.1 BQL 21.1 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
07/09/20 24.43 1.80 BQL BQL BQL 52.8 BQL BQL 0.90 BQL BQL BQL 0.62 BQL BQL 0.74 BQL BQL
12/04/20 25.21 1.7 BQL BQL BQL 65.1 BQL 22.5 BQL BQL BQL BQL 0.72 BQL BQL 0.71 BQL BQL
05/26/21 24.78 1.4 BQL BQL BQL 44.5 BQL 14.7 BQL BQL BQL BQL 0.74 BQL BQL 2.0 0.51 BQL
11/23/21 30.04 BQL BQL BQL BQL 51.6 BQL 17.6 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
05/18/22 35.63 BQL BQL BQL BQL 35.6 BQL 12.1 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
11/29/22 29.23 0.69 BQL BQL BQL 37.0 BQL 11.5 BQL BQL BQL BQL 0.59 BQL BQL BQL BQL BQL
05/03/23 26.50 1.4 BQL BQL BQL 41.1 BQL 12.7 BQL BQL BQL BQL 0.88 BQL BQL 1.9 0.54 BQL
10/27/16 NM 291 BQL BQL 105 84.0 BQL BQL 42.0 BQL BQL BQL BQL BQL 246 242 66.8 696
02/15/17 NM 129 BQL BQL 20.7 57.5 BQL BQL 21.0 BQL BQL BQL BQL BQL 57.9 91.4 74.6 319
05/16/17 NM 8.5 BQL BQL BQL 1.0 27.9 13.6 1.1 BQL BQL BQL BQL BQL 5.4 3.8 2.9 15.3
08/31/17 35.15 423 BQL BQL 330 105 22.4 11.2 143 10.4 54.9 17.0 BQL BQL 277 1,030 352 2,010
07/31/18 NM
02/22/19 NM
03/27/19 NM
12/11/19 34.04 66.8 BQL BQL 301 40.7 19.0 BQL 92.3 BQL 57.0 BQL BQL BQL 15.0 640 125 571
07/09/20 29.40 26.7 BQL BQL 196 17.0 30.4 BQL 90.2 17.2 57.0 10.5 BQL 0.82 9.65 629 169 534
12/04/20 29.92 42.5 BQL BQL 395 22.3 32.4 4.1 163 BQL BQL BQL BQL BQL 10.7 974 267 1,114.9
05/26/21 29.49 16.3 BQL BQL 105 10.5 8.5 2.5 42.6 BQL 20.0 BQL BQL BQL 2.4 245 64.3 273.1
11/23/21 29.40 28.6 BQL BQL 321 20.5 35.1 BQL 121 BQL 98.7 39.1 BQL BQL BQL 1,060 228 551.2
05/18/22 34.99 23.9 BQL BQL 398 15.7 40.5 BQL 161 BQL 118 BQL BQL BQL BQL 1,200 272 583.7
11/29/22 34.51 12.4 BQL BQL 129 7.2 14.8 2.0 56.0 BQL 40.5 9.1 BQL BQL BQL 353 14.5 71.4
05/03/23 31.88 21.1 BQL BQL 142 12.3 17.5 BQL 67.9 BQL 53.7 BQL BQL BQL BQL 491 119 198
RW-3 08/31/17 36.76 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
10/27/16 32.50 0.9 BQL BQL BQL 1.7 1.0 23.4 1.8 BQL BQL BQL 1.7 BQL BQL 1.8 BQL 7.0
02/15/17 33.30 1.1 BQL BQL BQL 2.28 2.01 20.6 1.63 BQL 0.52 BQL 2.15 BQL BQL 1.35 0.52 6.96
1 70 100 600 70 70 20 6 25 70 70 70 70 600 400 400 500
5,000 70,000 NE 84,500 70,000 25,000 20,000 6,000 25,000 30,000 6,900 8,500 70,000 260,000 28,500 25,000 85,500
Notes:
= Exceeds North Carolina 2L Groundwater Quality Standards (NC2LGWQS)
= Exceeds Gross Contamination Levels
Contaminant concentrations are reported in micrograms per liter (µg/L)
NM = Not Measured
NE = Not Established
NA = Not Analyzed
BQL = Below Quantitation Limits
Analytical Method
Tolueneiso-PropylbenzeneSM 6200B
MTBENaphthaleneIPE1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTable B-4
Summary of Detected Groundwater Analytical Results
Mountain View Gas House
Groundwater Monitoring Report
Incident Name and No.: Mountain View Gas House, 19621/40446
Gross Contamination Levels
Contaminant of Concern
NC 2L Groundwater Quality Standards
Free Product 0.06'
Free Product 0.40'
RW-6
Sample collected but not reported inconsistency in lab data
No sample collected, well obstructed with recovery pump2-Chlorotoluene1 Kilogram of Enviro-BAC Added via 5-Gallon Slurry
No sample collected, well obstructed with recovery pump
1 Kilogram of Enviro-BAC Added via 5-Gallon Slurry
1 Kilogram of Enviro-BAC Added via 5-Gallon Slurryp-Isopropyltoluenen-Propylbenzenesec-ButylbenzeneRW-1
RW-2
1 Kilogram of Enviro-BAC Added via 5-Gallon SlurryChloroformEthylbenzeneBenzene Total Xylenesn-Butylbenzene StyreneMW-1
MW-1A
MW-2
MW-4
MW-5
Well Number Sampling Date
Depth to
Groundwater
(ft. TOC)
08/31/17 34.76 1,010 BQL BQL 1,360 186 94 BQL 288 BQL 328 BQL BQL BQL 1,600 2,340 708 6,500 10,470
02/22/19 NM
03/27/19 28.18 198 BQL BQL 1,050 63.6 96.4 BQL 423 BQL 357 BQL BQL BQL 147 2,320 752 4,200 5,595
12/11/19 33.95 142 BQL BQL 922 95.0 108 175 339 BQL 386 BQL BQL BQL 51.0 2,840 819 3,690 4,805
07/09/20 29.89 37.2 BQL BQL 335 45.8 78.0 BQL 198 62.0 263 36.0 BQL BQL 13.2 2,450 693 1,240 1,625
12/04/20 30.29 54.5 BQL BQL 313 15.7 79.9 BQL 202 BQL BQL BQL BQL BQL BQL 2,280 761 1,157 1,525
05/26/21 30.01 30.7 BQL BQL 141 BQL 79.0 BQL 118 BQL 372 BQL BQL BQL BQL 2,500 898 347 519.1
11/23/21 35.01 72.3 BQL 563 155 13.0 129 BQL 138 BQL BQL 351 BQL BQL BQL 3,970 1,360 400.2 627.50
05/18/22 35.67 64.1 BQL BQL 162 BQL 132 BQL 122 BQL 548 BQL BQL BQL BQL 3,420 1,260 408.8 634.90
11/29/22 35.09 35.2 BQL BQL 350 BQL 106 BQL 165 BQL 500 753 BQL BQL BQL 2,930 1,160 990.2 1,375.40
05/03/23 32.34 16.5 BQL BQL 185 6.8 35.5 BQL 93.1 BQL 135 BQL BQL BQL BQL 972 322 508.9 525.40
98%--100%96%62%-68%-59%---100%58%55%92%95%
07/31/18 32.21 240 BQL BQL 953 188 BQL BQL 148 BQL 303 BQL BQL BQL 453 2,060 660 4,290 5,936.00
02/22/19 NM
03/27/19 27.97 44.0 BQL BQL 206 BQL 36 BQL 139 BQL 148 BQL BQL BQL 25 1,100 328 718 993.00
12/11/19 33.87 209 BQL BQL 426 81.0 69.0 82.5 253 BQL 255 BQL BQL BQL 43.0 2,100 635 1,290 1,968.00
07/09/20 29.66 48.0 BQL BQL 297 22.4 45.7 BQL 140 35.4 151 39.0 BQL BQL 10.1 1,300 404 868 1,223.10
12/04/20 30.18 90.4 BQL BQL 232 18.2 42.4 BQL 142 BQL BQL BQL BQL BQL 9.8 1,300 408 682.4 1,014.60
05/26/21 29.82 40.9 BQL BQL 212 8.6 47.1 BQL 168 BQL BQL BQL BQL BQL BQL 1,490 453 568.2 821.10
11/23/21 34.94 86.2 BQL BQL 473 16.4 100 BQL 301 BQL 401 BQL BQL BQL BQL 3,030 912 1,577 2,136.20
05/18/22 35.50 72.0 BQL BQL 461 24.0 88.2 BQL 276 BQL 313 BQL BQL BQL BQL 2,370 711 1,478.9 2,011.90
11/29/22 34.94 77.7 39.0 BQL 414 BQL 82.8 BQL 213 BQL 260 BQL BQL BQL 8.3 2,020 613 1,280.5 1,780.50
05/03/23 32.11 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
------------------
08/31/17 35.15 423 BQL BQL 330 105 22.4 11.2 143 10.4 54.9 17.0 BQL BQL 277 1,030 352 2,010 3,040
07/31/18 NM
02/22/19 NM
03/27/19 NM
12/11/19 34.04 66.8 BQL BQL 301 40.7 19.0 BQL 92.3 BQL 57.0 BQL BQL BQL 15.0 640 125 571 954
07/09/20 29.40 26.7 BQL BQL 196 17.0 30.4 BQL 90.2 17.2 57.0 10.5 BQL 0.82 9.65 629 169 534 766
12/04/20 29.92 42.5 BQL BQL 395 22.3 32.4 4.1 163 BQL BQL BQL BQL BQL 10.7 974 267 1,114.9 1,563
05/26/21 29.49 16.3 BQL BQL 105 10.5 8.5 2.5 42.6 BQL 20.0 BQL BQL BQL 2.4 245 64.3 273.1 396.8
11/23/21 29.40 28.6 BQL BQL 321 20.5 35.1 BQL 121 BQL 98.7 39.1 BQL BQL BQL 1,060 228 551.2 900.8
05/18/22 34.99 23.9 BQL BQL 398 15.7 40.5 BQL 161 BQL 118 BQL BQL BQL BQL 1,200 272 583.7 1,005.6
11/29/22 34.51 12.4 BQL BQL 129 7.2 14.8 2.0 56.0 BQL 40.5 9.1 BQL BQL BQL 353 14.5 71.4 212.8
05/03/23 31.88 21.1 BQL BQL 142 12.3 17.5 BQL 67.9 BQL 53.7 BQL BQL BQL BQL 491 119 198 361.10
95%--57%88%22%100%53%100%2%100%--100%52%66%90%88%Total XylenesStandard Method 6200B
Total BTEXn-Propylbenzenen-Butylbenzene sec-ButylbenzeneToluenep-Isopropyltoluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneStyreneAnalytical Method
Contaminant of Concern
NaphthaleneEthylbenzeneIPEiso-PropylbenzeneMTBEBenzene2-ChlorotolueneChloroformTable B-4A
Effectiveness of Bioremedial Injection
Mountain View Gas House
Groundwater Monitoring Report
Incident Name and No.: Mountain View Gas House, 19621/40446
MW-1
RW-2
% Decrease
No sample collected, well obstructed with recovery pump
1 Kilogram of Enviro-BAC Added via 5-Gallon Slurry
No sample collected, well obstructed with recovery pump
% Decreaase
1 Kilogram of Enviro-BAC Added via 5-Gallon Slurry
% Decrease
1 Kilogram of Enviro-BAC Added via 5-Gallon Slurry
MW-1A
Well Screened Total Depth Depth Free Relative Groundwater
Monitoring Well Installation Diameter Interval Depth to Water to Product Product Elevation Elevation
ID Date (inches)(feet)(feet)(feet TOC)(feet TOC)Thickness (feet TOC )*(feet)
5/3/2023 5/3/2023 (feet)
MW-1 4/1/1999 2 40-50 50 32.34 NM NM 100.86 68.52
MW-1A 3/15/2001 2 20-45 45 32.11 NM NM 101.43 69.32
MW-2 7/15/1999 2 21-41 41 29.03 NM NM 100.28 71.25
MW-3 7/14/1999 2 25-45 45 NM NM NM 100.33 NM
MW-4*7/15/99-7/16/99 2 63-68 68 34.29 NM NM 101.61 NM
MW-5 7/14/1999 2 25-45 45 35.52 NM NM 101.43 65.91
MW-6 11/15/99-11/16-99 2 23-43 43 NM NM NM 100.39 NM
MW-7 11/16/1999 2 24-44 44 NM NM NM 99.72 NM
MW-8 11/16/99-11/17/99 2 14-34 34 NM NM NM 91.10 NM
MW-9 11/29/1999 2 15-35 35 NM NM NM 92.06 NM
MW-10 11/29/1999 2 20-40 40 NM NM NM 100.34 NM
MW-11 2/15/2000 2 26-46 46 NM NM NM 98.49 NM
RW-1 8/15/2000 2 20-45 45 26.50 NM NM 93.36 66.86
RW-2 12/7/2002 2 15-50 50 31.88 NM NM 100.55 68.67
RW-6 7/31/2008 2 20-60 60 NM NM NM 95.49 NM
* = Denotes Telescoping Type III Monitoring Well
Incident Name and No.: Mountain View Gas House, 19621/40446
Table B-7
Well Construction Information
Mountain View Gas House
Groundwater Monitoring Report

APPENDIX
FIELD DATA SHEETS

APPENDIX
LABORATORY DATA SHEETS AND CHAIN-OF-CUSTODY RECORD
#=CL#
May 22, 2023
LIMS USE: FR - JEFF BALLSEIPER
LIMS OBJECT ID: 92666177
92666177
Project:
Pace Project No.:
RE:
Jeff Ballseiper
HRC NC, LLC.
120 Fayette St.
Winston Salem, NC 27101
Mountainview Gas House
Dear Jeff Ballseiper:
Enclosed are the analytical results for sample(s) received by the laboratory on May 05, 2023. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Stephanie Knott
[e-mail]
Project Manager
704-977-0981
Enclosures
cc:Jay Lawson, HRP NC, LLC
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 1 of 36
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Pace Analytical Services Charlotte
South Carolina Laboratory ID: 99006
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Laboratory ID: 99006
South Carolina Certification #: 99006001
South Carolina Drinking Water Cert. #: 99006003
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Louisiana DoH Drinking Water #: LA029
Virginia/VELAP Certification #: 460221
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 2 of 36
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92666177
Mountainview Gas House
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92666177001 MW-1 SM 6200B 64 PASI-CSAS
92666177002 RW-1 SM 6200B 64 PASI-CSAS
92666177003 MW-4 SM 6200B 64 PASI-CSAS
92666177004 MW-5 SM 6200B 64 PASI-CSAS
92666177005 MW-2 SM 6200B 64 PASI-CSAS
92666177006 RW-2 SM 6200B 64 PASI-CSAS
92666177007 PW-1 SM 6200B 64 PASI-CSAS
92666177008 PW-3 SM 6200B 64 PASI-CSAS
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 3 of 36
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92666177
Mountainview Gas House
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92666177001 MW-1
Benzene 16.5 ug/L 05/17/23 18:335.0SM 6200B
Diisopropyl ether 6.8 ug/L 05/17/23 18:335.0SM 6200B
Ethylbenzene 185 ug/L 05/17/23 18:335.0SM 6200B
Isopropylbenzene (Cumene)35.5 ug/L 05/17/23 18:335.0SM 6200B
Naphthalene 93.1 ug/L 05/17/23 18:3320.0SM 6200B
n-Propylbenzene 135 ug/L 05/17/23 18:335.0SM 6200B
1,2,4-Trimethylbenzene 972 ug/L 05/17/23 18:335.0SM 6200B
1,3,5-Trimethylbenzene 322 ug/L 05/17/23 18:335.0SM 6200B
m&p-Xylene 501 ug/L 05/17/23 18:3310.0SM 6200B
o-Xylene 7.9 ug/L 05/17/23 18:335.0SM 6200B
92666177002 RW-1
Benzene 1.4 ug/L 05/17/23 00:120.50SM 6200B
sec-Butylbenzene 0.88 ug/L 05/17/23 00:120.50SM 6200B
Diisopropyl ether 41.1 ug/L 05/17/23 00:120.50SM 6200B
Methyl-tert-butyl ether 12.7 ug/L 05/17/23 00:120.50SM 6200B
1,2,4-Trimethylbenzene 1.9 ug/L 05/17/23 00:120.50SM 6200B
1,3,5-Trimethylbenzene 0.54 ug/L 05/17/23 00:120.50SM 6200B
92666177003 MW-4
Methyl-tert-butyl ether 0.75 ug/L 05/17/23 00:300.50SM 6200B
92666177004 MW-5
sec-Butylbenzene 0.63 ug/L 05/17/23 00:480.50SM 6200B
Diisopropyl ether 0.75 ug/L 05/17/23 00:480.50SM 6200B
Methyl-tert-butyl ether 5.2 ug/L 05/17/23 00:480.50SM 6200B
92666177005 MW-2
Benzene 20.9 ug/L 05/17/23 01:060.50SM 6200B
sec-Butylbenzene 3.3 ug/L 05/17/23 01:060.50SM 6200B
Diisopropyl ether 12.1 ug/L 05/17/23 01:060.50SM 6200B
Ethylbenzene 0.82 ug/L 05/17/23 01:060.50SM 6200B
Isopropylbenzene (Cumene)4.0 ug/L 05/17/23 01:060.50SM 6200B
Methyl-tert-butyl ether 2.8 ug/L 05/17/23 01:060.50SM 6200B
Naphthalene 32.6 ug/L 05/17/23 01:062.0SM 6200B
n-Propylbenzene 1.5 ug/L 05/17/23 01:060.50SM 6200B
1,2,4-Trimethylbenzene 29.8 ug/L 05/17/23 01:060.50SM 6200B
1,3,5-Trimethylbenzene 6.2 ug/L 05/17/23 01:060.50SM 6200B
m&p-Xylene 10.4 ug/L 05/17/23 01:061.0SM 6200B
o-Xylene 2.7 ug/L 05/17/23 01:060.50SM 6200B
92666177006 RW-2
Benzene 21.1 ug/L 05/17/23 18:152.5SM 6200B
Diisopropyl ether 12.3 ug/L 05/17/23 18:152.5SM 6200B
Ethylbenzene 142 ug/L 05/17/23 18:152.5SM 6200B
Isopropylbenzene (Cumene)17.5 ug/L 05/17/23 18:152.5SM 6200B
Naphthalene 67.9 ug/L 05/17/23 18:1510.0SM 6200B
n-Propylbenzene 53.7 ug/L 05/17/23 18:152.5SM 6200B
1,2,4-Trimethylbenzene 491 ug/L 05/17/23 18:152.5SM 6200B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 4 of 36
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92666177
Mountainview Gas House
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92666177006 RW-2
1,3,5-Trimethylbenzene 119 ug/L 05/17/23 18:152.5SM 6200B
m&p-Xylene 198 ug/L 05/17/23 18:155.0SM 6200B
92666177007 PW-1
Chloroform 0.67 ug/L 05/17/23 15:53 M10.50SM 6200B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 5 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-1 Lab ID:92666177001 Collected:05/03/23 13:05 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 16.5 ug/L 05/17/23 18:33 71-43-25.0 10
Bromobenzene ND ug/L 05/17/23 18:33 108-86-15.0 10
Bromochloromethane ND ug/L 05/17/23 18:33 74-97-55.0 10
Bromodichloromethane ND ug/L 05/17/23 18:33 75-27-45.0 10
Bromoform ND ug/L 05/17/23 18:33 75-25-25.0 10
Bromomethane ND ug/L 05/17/23 18:33 74-83-950.0 10
n-Butylbenzene ND ug/L 05/17/23 18:33 104-51-85.0 10
sec-Butylbenzene ND ug/L 05/17/23 18:33 135-98-85.0 10
tert-Butylbenzene ND ug/L 05/17/23 18:33 98-06-65.0 10
Carbon tetrachloride ND ug/L 05/17/23 18:33 56-23-55.0 10
Chlorobenzene ND ug/L 05/17/23 18:33 108-90-75.0 10
Chloroethane ND ug/L 05/17/23 18:33 75-00-3 L110.0 10
Chloroform ND ug/L 05/17/23 18:33 67-66-35.0 10
Chloromethane ND ug/L 05/17/23 18:33 74-87-310.0 10
2-Chlorotoluene ND ug/L 05/17/23 18:33 95-49-85.0 10
4-Chlorotoluene ND ug/L 05/17/23 18:33 106-43-45.0 10
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 18:33 96-12-810.0 10
Dibromochloromethane ND ug/L 05/17/23 18:33 124-48-15.0 10
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 18:33 106-93-45.0 10
Dibromomethane ND ug/L 05/17/23 18:33 74-95-35.0 10
1,2-Dichlorobenzene ND ug/L 05/17/23 18:33 95-50-15.0 10
1,3-Dichlorobenzene ND ug/L 05/17/23 18:33 541-73-15.0 10
1,4-Dichlorobenzene ND ug/L 05/17/23 18:33 106-46-75.0 10
Dichlorodifluoromethane ND ug/L 05/17/23 18:33 75-71-8 IH,L15.0 10
1,1-Dichloroethane ND ug/L 05/17/23 18:33 75-34-35.0 10
1,2-Dichloroethane ND ug/L 05/17/23 18:33 107-06-25.0 10
1,1-Dichloroethene ND ug/L 05/17/23 18:33 75-35-45.0 10
cis-1,2-Dichloroethene ND ug/L 05/17/23 18:33 156-59-25.0 10
trans-1,2-Dichloroethene ND ug/L 05/17/23 18:33 156-60-55.0 10
1,2-Dichloropropane ND ug/L 05/17/23 18:33 78-87-55.0 10
1,3-Dichloropropane ND ug/L 05/17/23 18:33 142-28-95.0 10
2,2-Dichloropropane ND ug/L 05/17/23 18:33 594-20-75.0 10
1,1-Dichloropropene ND ug/L 05/17/23 18:33 563-58-65.0 10
cis-1,3-Dichloropropene ND ug/L 05/17/23 18:33 10061-01-55.0 10
trans-1,3-Dichloropropene ND ug/L 05/17/23 18:33 10061-02-65.0 10
Diisopropyl ether 6.8 ug/L 05/17/23 18:33 108-20-35.0 10
Ethanol ND ug/L 05/17/23 18:33 64-17-5200010
Ethylbenzene 185 ug/L 05/17/23 18:33 100-41-45.0 10
Hexachloro-1,3-butadiene ND ug/L 05/17/23 18:33 87-68-320.0 10
Isopropylbenzene (Cumene)35.5 ug/L 05/17/23 18:33 98-82-85.0 10
Methylene Chloride ND ug/L 05/17/23 18:33 75-09-220.0 10
Methyl-tert-butyl ether ND ug/L 05/17/23 18:33 1634-04-45.0 10
Naphthalene 93.1 ug/L 05/17/23 18:33 91-20-320.0 10
n-Propylbenzene 135 ug/L 05/17/23 18:33 103-65-15.0 10
Styrene ND ug/L 05/17/23 18:33 100-42-55.0 10
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 18:33 630-20-65.0 10
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 6 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-1 Lab ID:92666177001 Collected:05/03/23 13:05 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 18:33 79-34-55.0 10
Tetrachloroethene ND ug/L 05/17/23 18:33 127-18-45.0 10
Toluene ND ug/L 05/17/23 18:33 108-88-35.0 10
1,2,3-Trichlorobenzene ND ug/L 05/17/23 18:33 87-61-620.0 10
1,2,4-Trichlorobenzene ND ug/L 05/17/23 18:33 120-82-120.0 10
1,1,1-Trichloroethane ND ug/L 05/17/23 18:33 71-55-65.0 10
1,1,2-Trichloroethane ND ug/L 05/17/23 18:33 79-00-55.0 10
Trichloroethene ND ug/L 05/17/23 18:33 79-01-65.0 10
Trichlorofluoromethane ND ug/L 05/17/23 18:33 75-69-410.0 10
1,2,3-Trichloropropane ND ug/L 05/17/23 18:33 96-18-45.0 10
1,2,4-Trimethylbenzene 972 ug/L 05/17/23 18:33 95-63-65.0 10
1,3,5-Trimethylbenzene 322 ug/L 05/17/23 18:33 108-67-85.0 10
Vinyl chloride ND ug/L 05/17/23 18:33 75-01-410.0 10
m&p-Xylene 501 ug/L 05/17/23 18:33 179601-23-110.0 10
o-Xylene 7.9 ug/L 05/17/23 18:33 95-47-65.0 10
Surrogates
1,2-Dichloroethane-d4 (S)113 %05/17/23 18:33 17060-07-070-130 10
4-Bromofluorobenzene (S)99 %05/17/23 18:33 460-00-470-130 10
Toluene-d8 (S)101 %05/17/23 18:33 2037-26-570-130 10
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 7 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:RW-1 Lab ID:92666177002 Collected:05/03/23 16:45 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 1.4 ug/L 05/17/23 00:12 71-43-20.50 1
Bromobenzene ND ug/L 05/17/23 00:12 108-86-10.50 1
Bromochloromethane ND ug/L 05/17/23 00:12 74-97-50.50 1
Bromodichloromethane ND ug/L 05/17/23 00:12 75-27-40.50 1
Bromoform ND ug/L 05/17/23 00:12 75-25-20.50 1
Bromomethane ND ug/L 05/17/23 00:12 74-83-95.0 1
n-Butylbenzene ND ug/L 05/17/23 00:12 104-51-80.50 1
sec-Butylbenzene 0.88 ug/L 05/17/23 00:12 135-98-80.50 1
tert-Butylbenzene ND ug/L 05/17/23 00:12 98-06-60.50 1
Carbon tetrachloride ND ug/L 05/17/23 00:12 56-23-50.50 1
Chlorobenzene ND ug/L 05/17/23 00:12 108-90-70.50 1
Chloroethane ND ug/L 05/17/23 00:12 75-00-3 L11.0 1
Chloroform ND ug/L 05/17/23 00:12 67-66-30.50 1
Chloromethane ND ug/L 05/17/23 00:12 74-87-31.0 1
2-Chlorotoluene ND ug/L 05/17/23 00:12 95-49-80.50 1
4-Chlorotoluene ND ug/L 05/17/23 00:12 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 00:12 96-12-81.0 1
Dibromochloromethane ND ug/L 05/17/23 00:12 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 00:12 106-93-40.50 1
Dibromomethane ND ug/L 05/17/23 00:12 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 05/17/23 00:12 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 05/17/23 00:12 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 05/17/23 00:12 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 05/17/23 00:12 75-71-8 IH0.50 1
1,1-Dichloroethane ND ug/L 05/17/23 00:12 75-34-30.50 1
1,2-Dichloroethane ND ug/L 05/17/23 00:12 107-06-20.50 1
1,1-Dichloroethene ND ug/L 05/17/23 00:12 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 05/17/23 00:12 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 05/17/23 00:12 156-60-50.50 1
1,2-Dichloropropane ND ug/L 05/17/23 00:12 78-87-50.50 1
1,3-Dichloropropane ND ug/L 05/17/23 00:12 142-28-90.50 1
2,2-Dichloropropane ND ug/L 05/17/23 00:12 594-20-70.50 1
1,1-Dichloropropene ND ug/L 05/17/23 00:12 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 05/17/23 00:12 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 05/17/23 00:12 10061-02-60.50 1
Diisopropyl ether 41.1 ug/L 05/17/23 00:12 108-20-30.50 1
Ethanol ND ug/L 05/17/23 00:12 64-17-52001
Ethylbenzene ND ug/L 05/17/23 00:12 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 05/17/23 00:12 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 05/17/23 00:12 98-82-80.50 1
Methylene Chloride ND ug/L 05/17/23 00:12 75-09-22.0 1
Methyl-tert-butyl ether 12.7 ug/L 05/17/23 00:12 1634-04-40.50 1
Naphthalene ND ug/L 05/17/23 00:12 91-20-32.0 1
n-Propylbenzene ND ug/L 05/17/23 00:12 103-65-10.50 1
Styrene ND ug/L 05/17/23 00:12 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 00:12 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 8 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:RW-1 Lab ID:92666177002 Collected:05/03/23 16:45 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 00:12 79-34-50.50 1
Tetrachloroethene ND ug/L 05/17/23 00:12 127-18-40.50 1
Toluene ND ug/L 05/17/23 00:12 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 05/17/23 00:12 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 05/17/23 00:12 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 05/17/23 00:12 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 05/17/23 00:12 79-00-50.50 1
Trichloroethene ND ug/L 05/17/23 00:12 79-01-60.50 1
Trichlorofluoromethane ND ug/L 05/17/23 00:12 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 05/17/23 00:12 96-18-40.50 1
1,2,4-Trimethylbenzene 1.9 ug/L 05/17/23 00:12 95-63-60.50 1
1,3,5-Trimethylbenzene 0.54 ug/L 05/17/23 00:12 108-67-80.50 1
Vinyl chloride ND ug/L 05/17/23 00:12 75-01-41.0 1
m&p-Xylene ND ug/L 05/17/23 00:12 179601-23-11.0 1
o-Xylene ND ug/L 05/17/23 00:12 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)111 %05/17/23 00:12 17060-07-070-130 1
4-Bromofluorobenzene (S)98 %05/17/23 00:12 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 00:12 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 9 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-4 Lab ID:92666177003 Collected:05/03/23 17:15 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 05/17/23 00:30 71-43-20.50 1
Bromobenzene ND ug/L 05/17/23 00:30 108-86-10.50 1
Bromochloromethane ND ug/L 05/17/23 00:30 74-97-50.50 1
Bromodichloromethane ND ug/L 05/17/23 00:30 75-27-40.50 1
Bromoform ND ug/L 05/17/23 00:30 75-25-20.50 1
Bromomethane ND ug/L 05/17/23 00:30 74-83-95.0 1
n-Butylbenzene ND ug/L 05/17/23 00:30 104-51-80.50 1
sec-Butylbenzene ND ug/L 05/17/23 00:30 135-98-80.50 1
tert-Butylbenzene ND ug/L 05/17/23 00:30 98-06-60.50 1
Carbon tetrachloride ND ug/L 05/17/23 00:30 56-23-50.50 1
Chlorobenzene ND ug/L 05/17/23 00:30 108-90-70.50 1
Chloroethane ND ug/L 05/17/23 00:30 75-00-3 L11.0 1
Chloroform ND ug/L 05/17/23 00:30 67-66-30.50 1
Chloromethane ND ug/L 05/17/23 00:30 74-87-31.0 1
2-Chlorotoluene ND ug/L 05/17/23 00:30 95-49-80.50 1
4-Chlorotoluene ND ug/L 05/17/23 00:30 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 00:30 96-12-81.0 1
Dibromochloromethane ND ug/L 05/17/23 00:30 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 00:30 106-93-40.50 1
Dibromomethane ND ug/L 05/17/23 00:30 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 05/17/23 00:30 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 05/17/23 00:30 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 05/17/23 00:30 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 05/17/23 00:30 75-71-8 IH0.50 1
1,1-Dichloroethane ND ug/L 05/17/23 00:30 75-34-30.50 1
1,2-Dichloroethane ND ug/L 05/17/23 00:30 107-06-20.50 1
1,1-Dichloroethene ND ug/L 05/17/23 00:30 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 05/17/23 00:30 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 05/17/23 00:30 156-60-50.50 1
1,2-Dichloropropane ND ug/L 05/17/23 00:30 78-87-50.50 1
1,3-Dichloropropane ND ug/L 05/17/23 00:30 142-28-90.50 1
2,2-Dichloropropane ND ug/L 05/17/23 00:30 594-20-70.50 1
1,1-Dichloropropene ND ug/L 05/17/23 00:30 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 05/17/23 00:30 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 05/17/23 00:30 10061-02-60.50 1
Diisopropyl ether ND ug/L 05/17/23 00:30 108-20-30.50 1
Ethanol ND ug/L 05/17/23 00:30 64-17-52001
Ethylbenzene ND ug/L 05/17/23 00:30 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 05/17/23 00:30 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 05/17/23 00:30 98-82-80.50 1
Methylene Chloride ND ug/L 05/17/23 00:30 75-09-22.0 1
Methyl-tert-butyl ether 0.75 ug/L 05/17/23 00:30 1634-04-40.50 1
Naphthalene ND ug/L 05/17/23 00:30 91-20-32.0 1
n-Propylbenzene ND ug/L 05/17/23 00:30 103-65-10.50 1
Styrene ND ug/L 05/17/23 00:30 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 00:30 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 10 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-4 Lab ID:92666177003 Collected:05/03/23 17:15 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 00:30 79-34-50.50 1
Tetrachloroethene ND ug/L 05/17/23 00:30 127-18-40.50 1
Toluene ND ug/L 05/17/23 00:30 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 05/17/23 00:30 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 05/17/23 00:30 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 05/17/23 00:30 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 05/17/23 00:30 79-00-50.50 1
Trichloroethene ND ug/L 05/17/23 00:30 79-01-60.50 1
Trichlorofluoromethane ND ug/L 05/17/23 00:30 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 05/17/23 00:30 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 05/17/23 00:30 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 05/17/23 00:30 108-67-80.50 1
Vinyl chloride ND ug/L 05/17/23 00:30 75-01-41.0 1
m&p-Xylene ND ug/L 05/17/23 00:30 179601-23-11.0 1
o-Xylene ND ug/L 05/17/23 00:30 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)111 %05/17/23 00:30 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 00:30 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 00:30 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 11 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-5 Lab ID:92666177004 Collected:05/03/23 12:35 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 05/17/23 00:48 71-43-20.50 1
Bromobenzene ND ug/L 05/17/23 00:48 108-86-10.50 1
Bromochloromethane ND ug/L 05/17/23 00:48 74-97-50.50 1
Bromodichloromethane ND ug/L 05/17/23 00:48 75-27-40.50 1
Bromoform ND ug/L 05/17/23 00:48 75-25-20.50 1
Bromomethane ND ug/L 05/17/23 00:48 74-83-95.0 1
n-Butylbenzene ND ug/L 05/17/23 00:48 104-51-80.50 1
sec-Butylbenzene 0.63 ug/L 05/17/23 00:48 135-98-80.50 1
tert-Butylbenzene ND ug/L 05/17/23 00:48 98-06-60.50 1
Carbon tetrachloride ND ug/L 05/17/23 00:48 56-23-50.50 1
Chlorobenzene ND ug/L 05/17/23 00:48 108-90-70.50 1
Chloroethane ND ug/L 05/17/23 00:48 75-00-3 L11.0 1
Chloroform ND ug/L 05/17/23 00:48 67-66-30.50 1
Chloromethane ND ug/L 05/17/23 00:48 74-87-31.0 1
2-Chlorotoluene ND ug/L 05/17/23 00:48 95-49-80.50 1
4-Chlorotoluene ND ug/L 05/17/23 00:48 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 00:48 96-12-81.0 1
Dibromochloromethane ND ug/L 05/17/23 00:48 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 00:48 106-93-40.50 1
Dibromomethane ND ug/L 05/17/23 00:48 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 05/17/23 00:48 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 05/17/23 00:48 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 05/17/23 00:48 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 05/17/23 00:48 75-71-8 IH0.50 1
1,1-Dichloroethane ND ug/L 05/17/23 00:48 75-34-30.50 1
1,2-Dichloroethane ND ug/L 05/17/23 00:48 107-06-20.50 1
1,1-Dichloroethene ND ug/L 05/17/23 00:48 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 05/17/23 00:48 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 05/17/23 00:48 156-60-50.50 1
1,2-Dichloropropane ND ug/L 05/17/23 00:48 78-87-50.50 1
1,3-Dichloropropane ND ug/L 05/17/23 00:48 142-28-90.50 1
2,2-Dichloropropane ND ug/L 05/17/23 00:48 594-20-70.50 1
1,1-Dichloropropene ND ug/L 05/17/23 00:48 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 05/17/23 00:48 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 05/17/23 00:48 10061-02-60.50 1
Diisopropyl ether 0.75 ug/L 05/17/23 00:48 108-20-30.50 1
Ethanol ND ug/L 05/17/23 00:48 64-17-52001
Ethylbenzene ND ug/L 05/17/23 00:48 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 05/17/23 00:48 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 05/17/23 00:48 98-82-80.50 1
Methylene Chloride ND ug/L 05/17/23 00:48 75-09-22.0 1
Methyl-tert-butyl ether 5.2 ug/L 05/17/23 00:48 1634-04-40.50 1
Naphthalene ND ug/L 05/17/23 00:48 91-20-32.0 1
n-Propylbenzene ND ug/L 05/17/23 00:48 103-65-10.50 1
Styrene ND ug/L 05/17/23 00:48 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 00:48 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 12 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-5 Lab ID:92666177004 Collected:05/03/23 12:35 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 00:48 79-34-50.50 1
Tetrachloroethene ND ug/L 05/17/23 00:48 127-18-40.50 1
Toluene ND ug/L 05/17/23 00:48 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 05/17/23 00:48 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 05/17/23 00:48 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 05/17/23 00:48 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 05/17/23 00:48 79-00-50.50 1
Trichloroethene ND ug/L 05/17/23 00:48 79-01-60.50 1
Trichlorofluoromethane ND ug/L 05/17/23 00:48 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 05/17/23 00:48 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 05/17/23 00:48 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 05/17/23 00:48 108-67-80.50 1
Vinyl chloride ND ug/L 05/17/23 00:48 75-01-41.0 1
m&p-Xylene ND ug/L 05/17/23 00:48 179601-23-11.0 1
o-Xylene ND ug/L 05/17/23 00:48 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)109 %05/17/23 00:48 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 00:48 460-00-470-130 1
Toluene-d8 (S)103 %05/17/23 00:48 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 13 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-2 Lab ID:92666177005 Collected:05/03/23 12:00 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 20.9 ug/L 05/17/23 01:06 71-43-20.50 1
Bromobenzene ND ug/L 05/17/23 01:06 108-86-10.50 1
Bromochloromethane ND ug/L 05/17/23 01:06 74-97-50.50 1
Bromodichloromethane ND ug/L 05/17/23 01:06 75-27-40.50 1
Bromoform ND ug/L 05/17/23 01:06 75-25-20.50 1
Bromomethane ND ug/L 05/17/23 01:06 74-83-95.0 1
n-Butylbenzene ND ug/L 05/17/23 01:06 104-51-80.50 1
sec-Butylbenzene 3.3 ug/L 05/17/23 01:06 135-98-80.50 1
tert-Butylbenzene ND ug/L 05/17/23 01:06 98-06-60.50 1
Carbon tetrachloride ND ug/L 05/17/23 01:06 56-23-50.50 1
Chlorobenzene ND ug/L 05/17/23 01:06 108-90-70.50 1
Chloroethane ND ug/L 05/17/23 01:06 75-00-3 L11.0 1
Chloroform ND ug/L 05/17/23 01:06 67-66-30.50 1
Chloromethane ND ug/L 05/17/23 01:06 74-87-31.0 1
2-Chlorotoluene ND ug/L 05/17/23 01:06 95-49-80.50 1
4-Chlorotoluene ND ug/L 05/17/23 01:06 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 01:06 96-12-81.0 1
Dibromochloromethane ND ug/L 05/17/23 01:06 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 01:06 106-93-40.50 1
Dibromomethane ND ug/L 05/17/23 01:06 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 05/17/23 01:06 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 05/17/23 01:06 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 05/17/23 01:06 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 05/17/23 01:06 75-71-8 IH0.50 1
1,1-Dichloroethane ND ug/L 05/17/23 01:06 75-34-30.50 1
1,2-Dichloroethane ND ug/L 05/17/23 01:06 107-06-20.50 1
1,1-Dichloroethene ND ug/L 05/17/23 01:06 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 05/17/23 01:06 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 05/17/23 01:06 156-60-50.50 1
1,2-Dichloropropane ND ug/L 05/17/23 01:06 78-87-50.50 1
1,3-Dichloropropane ND ug/L 05/17/23 01:06 142-28-90.50 1
2,2-Dichloropropane ND ug/L 05/17/23 01:06 594-20-70.50 1
1,1-Dichloropropene ND ug/L 05/17/23 01:06 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 05/17/23 01:06 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 05/17/23 01:06 10061-02-60.50 1
Diisopropyl ether 12.1 ug/L 05/17/23 01:06 108-20-30.50 1
Ethanol ND ug/L 05/17/23 01:06 64-17-52001
Ethylbenzene 0.82 ug/L 05/17/23 01:06 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 05/17/23 01:06 87-68-32.0 1
Isopropylbenzene (Cumene)4.0 ug/L 05/17/23 01:06 98-82-80.50 1
Methylene Chloride ND ug/L 05/17/23 01:06 75-09-22.0 1
Methyl-tert-butyl ether 2.8 ug/L 05/17/23 01:06 1634-04-40.50 1
Naphthalene 32.6 ug/L 05/17/23 01:06 91-20-32.0 1
n-Propylbenzene 1.5 ug/L 05/17/23 01:06 103-65-10.50 1
Styrene ND ug/L 05/17/23 01:06 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 01:06 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 14 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:MW-2 Lab ID:92666177005 Collected:05/03/23 12:00 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 01:06 79-34-50.50 1
Tetrachloroethene ND ug/L 05/17/23 01:06 127-18-40.50 1
Toluene ND ug/L 05/17/23 01:06 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 05/17/23 01:06 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 05/17/23 01:06 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 05/17/23 01:06 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 05/17/23 01:06 79-00-50.50 1
Trichloroethene ND ug/L 05/17/23 01:06 79-01-60.50 1
Trichlorofluoromethane ND ug/L 05/17/23 01:06 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 05/17/23 01:06 96-18-40.50 1
1,2,4-Trimethylbenzene 29.8 ug/L 05/17/23 01:06 95-63-60.50 1
1,3,5-Trimethylbenzene 6.2 ug/L 05/17/23 01:06 108-67-80.50 1
Vinyl chloride ND ug/L 05/17/23 01:06 75-01-41.0 1
m&p-Xylene 10.4 ug/L 05/17/23 01:06 179601-23-11.0 1
o-Xylene 2.7 ug/L 05/17/23 01:06 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)107 %05/17/23 01:06 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 01:06 460-00-470-130 1
Toluene-d8 (S)100 %05/17/23 01:06 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 15 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:RW-2 Lab ID:92666177006 Collected:05/03/23 15:08 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene 21.1 ug/L 05/17/23 18:15 71-43-22.5 5
Bromobenzene ND ug/L 05/17/23 18:15 108-86-12.5 5
Bromochloromethane ND ug/L 05/17/23 18:15 74-97-52.5 5
Bromodichloromethane ND ug/L 05/17/23 18:15 75-27-42.5 5
Bromoform ND ug/L 05/17/23 18:15 75-25-22.5 5
Bromomethane ND ug/L 05/17/23 18:15 74-83-925.0 5
n-Butylbenzene ND ug/L 05/17/23 18:15 104-51-82.5 5
sec-Butylbenzene ND ug/L 05/17/23 18:15 135-98-82.5 5
tert-Butylbenzene ND ug/L 05/17/23 18:15 98-06-62.5 5
Carbon tetrachloride ND ug/L 05/17/23 18:15 56-23-52.5 5
Chlorobenzene ND ug/L 05/17/23 18:15 108-90-72.5 5
Chloroethane ND ug/L 05/17/23 18:15 75-00-3 L15.0 5
Chloroform ND ug/L 05/17/23 18:15 67-66-32.5 5
Chloromethane ND ug/L 05/17/23 18:15 74-87-35.0 5
2-Chlorotoluene ND ug/L 05/17/23 18:15 95-49-82.5 5
4-Chlorotoluene ND ug/L 05/17/23 18:15 106-43-42.5 5
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 18:15 96-12-85.0 5
Dibromochloromethane ND ug/L 05/17/23 18:15 124-48-12.5 5
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 18:15 106-93-42.5 5
Dibromomethane ND ug/L 05/17/23 18:15 74-95-32.5 5
1,2-Dichlorobenzene ND ug/L 05/17/23 18:15 95-50-12.5 5
1,3-Dichlorobenzene ND ug/L 05/17/23 18:15 541-73-12.5 5
1,4-Dichlorobenzene ND ug/L 05/17/23 18:15 106-46-72.5 5
Dichlorodifluoromethane ND ug/L 05/17/23 18:15 75-71-8 IH,L12.5 5
1,1-Dichloroethane ND ug/L 05/17/23 18:15 75-34-32.5 5
1,2-Dichloroethane ND ug/L 05/17/23 18:15 107-06-22.5 5
1,1-Dichloroethene ND ug/L 05/17/23 18:15 75-35-42.5 5
cis-1,2-Dichloroethene ND ug/L 05/17/23 18:15 156-59-22.5 5
trans-1,2-Dichloroethene ND ug/L 05/17/23 18:15 156-60-52.5 5
1,2-Dichloropropane ND ug/L 05/17/23 18:15 78-87-52.5 5
1,3-Dichloropropane ND ug/L 05/17/23 18:15 142-28-92.5 5
2,2-Dichloropropane ND ug/L 05/17/23 18:15 594-20-72.5 5
1,1-Dichloropropene ND ug/L 05/17/23 18:15 563-58-62.5 5
cis-1,3-Dichloropropene ND ug/L 05/17/23 18:15 10061-01-52.5 5
trans-1,3-Dichloropropene ND ug/L 05/17/23 18:15 10061-02-62.5 5
Diisopropyl ether 12.3 ug/L 05/17/23 18:15 108-20-32.5 5
Ethanol ND ug/L 05/17/23 18:15 64-17-510005
Ethylbenzene 142 ug/L 05/17/23 18:15 100-41-42.5 5
Hexachloro-1,3-butadiene ND ug/L 05/17/23 18:15 87-68-310.0 5
Isopropylbenzene (Cumene)17.5 ug/L 05/17/23 18:15 98-82-82.5 5
Methylene Chloride ND ug/L 05/17/23 18:15 75-09-210.0 5
Methyl-tert-butyl ether ND ug/L 05/17/23 18:15 1634-04-42.5 5
Naphthalene 67.9 ug/L 05/17/23 18:15 91-20-310.0 5
n-Propylbenzene 53.7 ug/L 05/17/23 18:15 103-65-12.5 5
Styrene ND ug/L 05/17/23 18:15 100-42-52.5 5
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 18:15 630-20-62.5 5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 16 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:RW-2 Lab ID:92666177006 Collected:05/03/23 15:08 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 18:15 79-34-52.5 5
Tetrachloroethene ND ug/L 05/17/23 18:15 127-18-42.5 5
Toluene ND ug/L 05/17/23 18:15 108-88-32.5 5
1,2,3-Trichlorobenzene ND ug/L 05/17/23 18:15 87-61-610.0 5
1,2,4-Trichlorobenzene ND ug/L 05/17/23 18:15 120-82-110.0 5
1,1,1-Trichloroethane ND ug/L 05/17/23 18:15 71-55-62.5 5
1,1,2-Trichloroethane ND ug/L 05/17/23 18:15 79-00-52.5 5
Trichloroethene ND ug/L 05/17/23 18:15 79-01-62.5 5
Trichlorofluoromethane ND ug/L 05/17/23 18:15 75-69-45.0 5
1,2,3-Trichloropropane ND ug/L 05/17/23 18:15 96-18-42.5 5
1,2,4-Trimethylbenzene 491 ug/L 05/17/23 18:15 95-63-62.5 5
1,3,5-Trimethylbenzene 119 ug/L 05/17/23 18:15 108-67-82.5 5
Vinyl chloride ND ug/L 05/17/23 18:15 75-01-45.0 5
m&p-Xylene 198 ug/L 05/17/23 18:15 179601-23-15.0 5
o-Xylene ND ug/L 05/17/23 18:15 95-47-62.5 5
Surrogates
1,2-Dichloroethane-d4 (S)113 %05/17/23 18:15 17060-07-070-130 5
4-Bromofluorobenzene (S)97 %05/17/23 18:15 460-00-470-130 5
Toluene-d8 (S)101 %05/17/23 18:15 2037-26-570-130 5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 17 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:PW-1 Lab ID:92666177007 Collected:05/03/23 14:00 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 05/17/23 15:53 71-43-20.50 1
Bromobenzene ND ug/L 05/17/23 15:53 108-86-10.50 1
Bromochloromethane ND ug/L 05/17/23 15:53 74-97-50.50 1
Bromodichloromethane ND ug/L 05/17/23 15:53 75-27-40.50 1
Bromoform ND ug/L 05/17/23 15:53 75-25-20.50 1
Bromomethane ND ug/L 05/17/23 15:53 74-83-9 M15.0 1
n-Butylbenzene ND ug/L 05/17/23 15:53 104-51-80.50 1
sec-Butylbenzene ND ug/L 05/17/23 15:53 135-98-80.50 1
tert-Butylbenzene ND ug/L 05/17/23 15:53 98-06-60.50 1
Carbon tetrachloride ND ug/L 05/17/23 15:53 56-23-50.50 1
Chlorobenzene ND ug/L 05/17/23 15:53 108-90-70.50 1
Chloroethane ND ug/L 05/17/23 15:53 75-00-3 L1,M01.0 1
Chloroform 0.67 ug/L 05/17/23 15:53 67-66-3 M10.50 1
Chloromethane ND ug/L 05/17/23 15:53 74-87-3 M11.0 1
2-Chlorotoluene ND ug/L 05/17/23 15:53 95-49-80.50 1
4-Chlorotoluene ND ug/L 05/17/23 15:53 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 15:53 96-12-81.0 1
Dibromochloromethane ND ug/L 05/17/23 15:53 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 15:53 106-93-40.50 1
Dibromomethane ND ug/L 05/17/23 15:53 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 05/17/23 15:53 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 05/17/23 15:53 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 05/17/23 15:53 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 05/17/23 15:53 75-71-8 IH,L1,M00.50 1
1,1-Dichloroethane ND ug/L 05/17/23 15:53 75-34-3 M10.50 1
1,2-Dichloroethane ND ug/L 05/17/23 15:53 107-06-20.50 1
1,1-Dichloroethene ND ug/L 05/17/23 15:53 75-35-4 M10.50 1
cis-1,2-Dichloroethene ND ug/L 05/17/23 15:53 156-59-2 M10.50 1
trans-1,2-Dichloroethene ND ug/L 05/17/23 15:53 156-60-5 M10.50 1
1,2-Dichloropropane ND ug/L 05/17/23 15:53 78-87-50.50 1
1,3-Dichloropropane ND ug/L 05/17/23 15:53 142-28-90.50 1
2,2-Dichloropropane ND ug/L 05/17/23 15:53 594-20-70.50 1
1,1-Dichloropropene ND ug/L 05/17/23 15:53 563-58-6 M10.50 1
cis-1,3-Dichloropropene ND ug/L 05/17/23 15:53 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 05/17/23 15:53 10061-02-60.50 1
Diisopropyl ether ND ug/L 05/17/23 15:53 108-20-30.50 1
Ethanol ND ug/L 05/17/23 15:53 64-17-52001
Ethylbenzene ND ug/L 05/17/23 15:53 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 05/17/23 15:53 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 05/17/23 15:53 98-82-80.50 1
Methylene Chloride ND ug/L 05/17/23 15:53 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 05/17/23 15:53 1634-04-40.50 1
Naphthalene ND ug/L 05/17/23 15:53 91-20-32.0 1
n-Propylbenzene ND ug/L 05/17/23 15:53 103-65-10.50 1
Styrene ND ug/L 05/17/23 15:53 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 15:53 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 18 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:PW-1 Lab ID:92666177007 Collected:05/03/23 14:00 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 15:53 79-34-50.50 1
Tetrachloroethene ND ug/L 05/17/23 15:53 127-18-40.50 1
Toluene ND ug/L 05/17/23 15:53 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 05/17/23 15:53 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 05/17/23 15:53 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 05/17/23 15:53 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 05/17/23 15:53 79-00-50.50 1
Trichloroethene ND ug/L 05/17/23 15:53 79-01-60.50 1
Trichlorofluoromethane ND ug/L 05/17/23 15:53 75-69-4 M11.0 1
1,2,3-Trichloropropane ND ug/L 05/17/23 15:53 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 05/17/23 15:53 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 05/17/23 15:53 108-67-80.50 1
Vinyl chloride ND ug/L 05/17/23 15:53 75-01-41.0 1
m&p-Xylene ND ug/L 05/17/23 15:53 179601-23-11.0 1
o-Xylene ND ug/L 05/17/23 15:53 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)113 %05/17/23 15:53 17060-07-070-130 1
4-Bromofluorobenzene (S)96 %05/17/23 15:53 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 15:53 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 19 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:PW-3 Lab ID:92666177008 Collected:05/03/23 14:05 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 05/17/23 01:59 71-43-20.50 1
Bromobenzene ND ug/L 05/17/23 01:59 108-86-10.50 1
Bromochloromethane ND ug/L 05/17/23 01:59 74-97-50.50 1
Bromodichloromethane ND ug/L 05/17/23 01:59 75-27-40.50 1
Bromoform ND ug/L 05/17/23 01:59 75-25-20.50 1
Bromomethane ND ug/L 05/17/23 01:59 74-83-95.0 1
n-Butylbenzene ND ug/L 05/17/23 01:59 104-51-80.50 1
sec-Butylbenzene ND ug/L 05/17/23 01:59 135-98-80.50 1
tert-Butylbenzene ND ug/L 05/17/23 01:59 98-06-60.50 1
Carbon tetrachloride ND ug/L 05/17/23 01:59 56-23-50.50 1
Chlorobenzene ND ug/L 05/17/23 01:59 108-90-70.50 1
Chloroethane ND ug/L 05/17/23 01:59 75-00-3 L11.0 1
Chloroform ND ug/L 05/17/23 01:59 67-66-30.50 1
Chloromethane ND ug/L 05/17/23 01:59 74-87-31.0 1
2-Chlorotoluene ND ug/L 05/17/23 01:59 95-49-80.50 1
4-Chlorotoluene ND ug/L 05/17/23 01:59 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 05/17/23 01:59 96-12-81.0 1
Dibromochloromethane ND ug/L 05/17/23 01:59 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 05/17/23 01:59 106-93-40.50 1
Dibromomethane ND ug/L 05/17/23 01:59 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 05/17/23 01:59 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 05/17/23 01:59 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 05/17/23 01:59 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 05/17/23 01:59 75-71-8 IH0.50 1
1,1-Dichloroethane ND ug/L 05/17/23 01:59 75-34-30.50 1
1,2-Dichloroethane ND ug/L 05/17/23 01:59 107-06-20.50 1
1,1-Dichloroethene ND ug/L 05/17/23 01:59 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 05/17/23 01:59 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 05/17/23 01:59 156-60-50.50 1
1,2-Dichloropropane ND ug/L 05/17/23 01:59 78-87-50.50 1
1,3-Dichloropropane ND ug/L 05/17/23 01:59 142-28-90.50 1
2,2-Dichloropropane ND ug/L 05/17/23 01:59 594-20-70.50 1
1,1-Dichloropropene ND ug/L 05/17/23 01:59 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 05/17/23 01:59 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 05/17/23 01:59 10061-02-60.50 1
Diisopropyl ether ND ug/L 05/17/23 01:59 108-20-30.50 1
Ethanol ND ug/L 05/17/23 01:59 64-17-52001
Ethylbenzene ND ug/L 05/17/23 01:59 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 05/17/23 01:59 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 05/17/23 01:59 98-82-80.50 1
Methylene Chloride ND ug/L 05/17/23 01:59 75-09-22.0 1
Methyl-tert-butyl ether ND ug/L 05/17/23 01:59 1634-04-40.50 1
Naphthalene ND ug/L 05/17/23 01:59 91-20-32.0 1
n-Propylbenzene ND ug/L 05/17/23 01:59 103-65-10.50 1
Styrene ND ug/L 05/17/23 01:59 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 05/17/23 01:59 630-20-60.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 20 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92666177
Mountainview Gas House
Sample:PW-3 Lab ID:92666177008 Collected:05/03/23 14:05 Received:05/05/23 15:15 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
1,1,2,2-Tetrachloroethane ND ug/L 05/17/23 01:59 79-34-50.50 1
Tetrachloroethene ND ug/L 05/17/23 01:59 127-18-40.50 1
Toluene ND ug/L 05/17/23 01:59 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 05/17/23 01:59 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 05/17/23 01:59 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 05/17/23 01:59 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 05/17/23 01:59 79-00-50.50 1
Trichloroethene ND ug/L 05/17/23 01:59 79-01-60.50 1
Trichlorofluoromethane ND ug/L 05/17/23 01:59 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 05/17/23 01:59 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 05/17/23 01:59 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 05/17/23 01:59 108-67-80.50 1
Vinyl chloride ND ug/L 05/17/23 01:59 75-01-41.0 1
m&p-Xylene ND ug/L 05/17/23 01:59 179601-23-11.0 1
o-Xylene ND ug/L 05/17/23 01:59 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)110 %05/17/23 01:59 17060-07-070-130 1
4-Bromofluorobenzene (S)97 %05/17/23 01:59 460-00-470-130 1
Toluene-d8 (S)102 %05/17/23 01:59 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 21 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
774553
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92666177002, 92666177003, 92666177004, 92666177005, 92666177008
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4019762
Associated Lab Samples:92666177002, 92666177003, 92666177004, 92666177005, 92666177008
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 05/16/23 22:07
1,1,1-Trichloroethane ug/L ND 0.50 05/16/23 22:07
1,1,2,2-Tetrachloroethane ug/L ND 0.50 05/16/23 22:07
1,1,2-Trichloroethane ug/L ND 0.50 05/16/23 22:07
1,1-Dichloroethane ug/L ND 0.50 05/16/23 22:07
1,1-Dichloroethene ug/L ND 0.50 05/16/23 22:07
1,1-Dichloropropene ug/L ND 0.50 05/16/23 22:07
1,2,3-Trichlorobenzene ug/L ND 2.0 05/16/23 22:07
1,2,3-Trichloropropane ug/L ND 0.50 05/16/23 22:07
1,2,4-Trichlorobenzene ug/L ND 2.0 05/16/23 22:07
1,2,4-Trimethylbenzene ug/L ND 0.50 05/16/23 22:07
1,2-Dibromo-3-chloropropane ug/L ND 1.0 05/16/23 22:07
1,2-Dibromoethane (EDB)ug/L ND 0.50 05/16/23 22:07
1,2-Dichlorobenzene ug/L ND 0.50 05/16/23 22:07
1,2-Dichloroethane ug/L ND 0.50 05/16/23 22:07
1,2-Dichloropropane ug/L ND 0.50 05/16/23 22:07
1,3,5-Trimethylbenzene ug/L ND 0.50 05/16/23 22:07
1,3-Dichlorobenzene ug/L ND 0.50 05/16/23 22:07
1,3-Dichloropropane ug/L ND 0.50 05/16/23 22:07
1,4-Dichlorobenzene ug/L ND 0.50 05/16/23 22:07
2,2-Dichloropropane ug/L ND 0.50 05/16/23 22:07
2-Chlorotoluene ug/L ND 0.50 05/16/23 22:07
4-Chlorotoluene ug/L ND 0.50 05/16/23 22:07
Benzene ug/L ND 0.50 05/16/23 22:07
Bromobenzene ug/L ND 0.50 05/16/23 22:07
Bromochloromethane ug/L ND 0.50 05/16/23 22:07
Bromodichloromethane ug/L ND 0.50 05/16/23 22:07
Bromoform ug/L ND 0.50 05/16/23 22:07
Bromomethane ug/L ND 5.0 05/16/23 22:07
Carbon tetrachloride ug/L ND 0.50 05/16/23 22:07
Chlorobenzene ug/L ND 0.50 05/16/23 22:07
Chloroethane ug/L ND 1.0 05/16/23 22:07
Chloroform ug/L ND 0.50 05/16/23 22:07
Chloromethane ug/L ND 1.0 05/16/23 22:07
cis-1,2-Dichloroethene ug/L ND 0.50 05/16/23 22:07
cis-1,3-Dichloropropene ug/L ND 0.50 05/16/23 22:07
Dibromochloromethane ug/L ND 0.50 05/16/23 22:07
Dibromomethane ug/L ND 0.50 05/16/23 22:07
Dichlorodifluoromethane ug/L ND 0.50 IH05/16/23 22:07
Diisopropyl ether ug/L ND 0.50 05/16/23 22:07
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 22 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4019762
Associated Lab Samples:92666177002, 92666177003, 92666177004, 92666177005, 92666177008
Matrix:Water
Analyzed
Ethanol ug/L ND 200 05/16/23 22:07
Ethylbenzene ug/L ND 0.50 05/16/23 22:07
Hexachloro-1,3-butadiene ug/L ND 2.0 05/16/23 22:07
Isopropylbenzene (Cumene)ug/L ND 0.50 05/16/23 22:07
m&p-Xylene ug/L ND 1.0 05/16/23 22:07
Methyl-tert-butyl ether ug/L ND 0.50 05/16/23 22:07
Methylene Chloride ug/L ND 2.0 05/16/23 22:07
n-Butylbenzene ug/L ND 0.50 05/16/23 22:07
n-Propylbenzene ug/L ND 0.50 05/16/23 22:07
Naphthalene ug/L ND 2.0 05/16/23 22:07
o-Xylene ug/L ND 0.50 05/16/23 22:07
sec-Butylbenzene ug/L ND 0.50 05/16/23 22:07
Styrene ug/L ND 0.50 05/16/23 22:07
tert-Butylbenzene ug/L ND 0.50 05/16/23 22:07
Tetrachloroethene ug/L ND 0.50 05/16/23 22:07
Toluene ug/L ND 0.50 05/16/23 22:07
trans-1,2-Dichloroethene ug/L ND 0.50 05/16/23 22:07
trans-1,3-Dichloropropene ug/L ND 0.50 05/16/23 22:07
Trichloroethene ug/L ND 0.50 05/16/23 22:07
Trichlorofluoromethane ug/L ND 1.0 05/16/23 22:07
Vinyl chloride ug/L ND 1.0 05/16/23 22:07
1,2-Dichloroethane-d4 (S)%110 70-130 05/16/23 22:07
4-Bromofluorobenzene (S)%95 70-130 05/16/23 22:07
Toluene-d8 (S)%103 70-130 05/16/23 22:07
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4019763LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 17.520 88 60-140
1,1,1-Trichloroethane ug/L 18.420 92 60-140
1,1,2,2-Tetrachloroethane ug/L 20.220 101 60-140
1,1,2-Trichloroethane ug/L 19.620 98 60-140
1,1-Dichloroethane ug/L 20.320 101 60-140
1,1-Dichloroethene ug/L 20.220 101 60-140
1,1-Dichloropropene ug/L 21.020 105 60-140
1,2,3-Trichlorobenzene ug/L 17.020 85 60-140
1,2,3-Trichloropropane ug/L 18.820 94 60-140
1,2,4-Trichlorobenzene ug/L 16.920 85 60-140
1,2,4-Trimethylbenzene ug/L 18.320 91 60-140
1,2-Dibromo-3-chloropropane ug/L 15.120 76 60-140
1,2-Dibromoethane (EDB)ug/L 19.220 96 60-140
1,2-Dichlorobenzene ug/L 18.020 90 60-140
1,2-Dichloroethane ug/L 19.220 96 60-140
1,2-Dichloropropane ug/L 19.820 99 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 23 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4019763LABORATORY CONTROL SAMPLE:
LCSSpike
1,3,5-Trimethylbenzene ug/L 18.420 92 60-140
1,3-Dichlorobenzene ug/L 18.220 91 60-140
1,3-Dichloropropane ug/L 18.920 95 60-140
1,4-Dichlorobenzene ug/L 17.820 89 60-140
2,2-Dichloropropane ug/L 18.020 90 60-140
2-Chlorotoluene ug/L 18.520 92 60-140
4-Chlorotoluene ug/L 18.720 93 60-140
Benzene ug/L 18.720 94 60-140
Bromobenzene ug/L 17.520 88 60-140
Bromochloromethane ug/L 18.820 94 60-140
Bromodichloromethane ug/L 16.820 84 60-140
Bromoform ug/L 12.220 61 60-140
Bromomethane ug/L 22.720 113 60-140
Carbon tetrachloride ug/L 16.020 80 60-140
Chlorobenzene ug/L 18.420 92 60-140
Chloroethane ug/L 30.0 L12015060-140
Chloroform ug/L 19.520 98 60-140
Chloromethane ug/L 23.120 116 60-140
cis-1,2-Dichloroethene ug/L 19.820 99 60-140
cis-1,3-Dichloropropene ug/L 17.220 86 60-140
Dibromochloromethane ug/L 15.320 76 60-140
Dibromomethane ug/L 17.520 87 60-140
Dichlorodifluoromethane ug/L 27.3 IH2013660-140
Diisopropyl ether ug/L 18.420 92 60-140
Ethanol ug/L 786800 98 60-140
Ethylbenzene ug/L 18.220 91 60-140
Hexachloro-1,3-butadiene ug/L 17.220 86 60-140
Isopropylbenzene (Cumene)ug/L 18.220 91 60-140
m&p-Xylene ug/L 36.340 91 60-140
Methyl-tert-butyl ether ug/L 18.220 91 60-140
Methylene Chloride ug/L 18.820 94 60-140
n-Butylbenzene ug/L 19.120 95 60-140
n-Propylbenzene ug/L 18.520 93 60-140
Naphthalene ug/L 19.120 95 60-140
o-Xylene ug/L 18.020 90 60-140
sec-Butylbenzene ug/L 18.120 90 60-140
Styrene ug/L 18.620 93 60-140
tert-Butylbenzene ug/L 15.020 75 60-140
Tetrachloroethene ug/L 16.220 81 60-140
Toluene ug/L 17.720 88 60-140
trans-1,2-Dichloroethene ug/L 20.520 102 60-140
trans-1,3-Dichloropropene ug/L 16.320 82 60-140
Trichloroethene ug/L 18.520 93 60-140
Trichlorofluoromethane ug/L 19.420 97 60-140
Vinyl chloride ug/L 18.120 91 60-140
1,2-Dichloroethane-d4 (S)%107 70-130
4-Bromofluorobenzene (S)%100 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 24 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4019763LABORATORY CONTROL SAMPLE:
LCSSpike
Toluene-d8 (S)%100 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4020614MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92666531002
4020615
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 112 60-140111 120ND22.5 22.2
1,1,1-Trichloroethane ug/L 20 128 60-140123 420ND25.6 24.6
1,1,2,2-Tetrachloroethane ug/L 20 116 60-140115 120ND23.2 23.1
1,1,2-Trichloroethane ug/L 20 118 60-140115 320ND23.7 23.0
1,1-Dichloroethane ug/L 20 138 60-140132 420ND27.6 26.4
1,1-Dichloroethene ug/L M12014660-140139 520ND29.3 27.8
1,1-Dichloropropene ug/L M12015060-140144 420ND30.0 28.9
1,2,3-Trichlorobenzene ug/L 20 101 60-14099 220ND20.2 19.7
1,2,3-Trichloropropane ug/L 20 108 60-140107 120ND21.5 21.4
1,2,4-Trichlorobenzene ug/L 20 106 60-140103 320ND21.1 20.5
1,2,4-Trimethylbenzene ug/L 20 116 60-140112 420ND23.3 22.4
1,2-Dibromo-3-chloropropane ug/L 20 91 60-14090 120ND18.2 18.0
1,2-Dibromoethane (EDB)ug/L 20 116 60-140115 120ND23.3 23.0
1,2-Dichlorobenzene ug/L 20 113 60-140108 520ND22.6 21.6
1,2-Dichloroethane ug/L 20 123 60-140121 120ND24.5 24.2
1,2-Dichloropropane ug/L 20 130 60-140128 120ND26.0 25.6
1,3,5-Trimethylbenzene ug/L 20 121 60-140116 520ND24.2 23.1
1,3-Dichlorobenzene ug/L 20 117 60-140113 320ND23.4 22.6
1,3-Dichloropropane ug/L 20 116 60-140116 020ND23.2 23.1
1,4-Dichlorobenzene ug/L 20 113 60-140108 420ND22.7 21.7
2,2-Dichloropropane ug/L 20 137 60-140132 420ND27.4 26.4
2-Chlorotoluene ug/L 20 122 60-140118 420ND24.5 23.5
4-Chlorotoluene ug/L 20 122 60-140118 320ND24.4 23.6
Benzene ug/L 20 130 60-140126 320ND26.0 25.3
Bromobenzene ug/L 20 114 60-140111 220ND22.7 22.2
Bromochloromethane ug/L 20 125 60-140123 220ND25.0 24.6
Bromodichloromethane ug/L 20 111 60-140108 320ND22.2 21.6
Bromoform ug/L 20 90 60-14089 120ND17.9 17.7
Bromomethane ug/L M12014560-140142 220ND28.9 28.4
Carbon tetrachloride ug/L 20 116 60-140110 520ND23.2 22.1
Chlorobenzene ug/L 20 121 60-140118 220ND24.2 23.7
Chloroethane ug/L M02020560-140204 120ND41.1 40.7
Chloroform ug/L 20 135 60-140125 820ND27.0 25.0
Chloromethane ug/L M12015360-140151 120ND30.5 30.1
cis-1,2-Dichloroethene ug/L 20 133 60-140128 420ND26.6 25.7
cis-1,3-Dichloropropene ug/L 20 115 60-140112 320ND23.0 22.3
Dibromochloromethane ug/L 20 105 60-140105 120ND21.1 21.0
Dibromomethane ug/L 20 110 60-140108 220ND22.0 21.7
Dichlorodifluoromethane ug/L IH,M12020360-140193 520ND40.5 38.7
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 25 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4020614MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92666531002
4020615
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Diisopropyl ether ug/L 20 121 60-140117 320ND24.2 23.5
Ethanol ug/L 800 107 60-140110 3800ND859884
Ethylbenzene ug/L 20 121 60-140121 120ND24.3 24.1
Hexachloro-1,3-butadiene ug/L 20 118 60-140112 520ND23.5 22.4
Isopropylbenzene (Cumene)ug/L 20 121 60-140116 520ND24.3 23.2
m&p-Xylene ug/L 40 119 60-140117 240ND47.7 46.9
Methyl-tert-butyl ether ug/L 20 112 60-140110 220ND22.5 21.9
Methylene Chloride ug/L 20 122 60-140119 320ND24.4 23.7
n-Butylbenzene ug/L 20 130 60-140124 520ND26.1 24.8
n-Propylbenzene ug/L 20 125 60-140121 320ND25.0 24.1
Naphthalene ug/L 20 109 60-140108 120ND21.8 21.5
o-Xylene ug/L 20 117 60-140114 220ND23.4 22.8
sec-Butylbenzene ug/L 20 123 60-140118 520ND24.7 23.5
Styrene ug/L 20 119 60-140116 220ND23.7 23.2
tert-Butylbenzene ug/L 20 99 60-14095 420ND19.7 19.0
Tetrachloroethene ug/L 20 114 60-140110 320ND22.7 22.0
Toluene ug/L 20 120 60-140117 320ND24.1 23.4
trans-1,2-Dichloroethene ug/L M12014460-140138 420ND28.7 27.5
trans-1,3-Dichloropropene ug/L 20 112 60-140110 220ND22.4 21.9
Trichloroethene ug/L 20 127 60-140124 220ND25.4 24.8
Trichlorofluoromethane ug/L M12014460-140139 420ND28.8 27.7
Vinyl chloride ug/L 20 133 60-140127 520ND26.6 25.4
1,2-Dichloroethane-d4 (S)%104 70-130104
4-Bromofluorobenzene (S)%99 70-130100
Toluene-d8 (S)%100 70-130101
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 26 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
775001
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92666177001, 92666177006, 92666177007
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4021669
Associated Lab Samples:92666177001, 92666177006, 92666177007
Matrix:Water
Analyzed
1,1,1,2-Tetrachloroethane ug/L ND 0.50 05/17/23 10:50
1,1,1-Trichloroethane ug/L ND 0.50 05/17/23 10:50
1,1,2,2-Tetrachloroethane ug/L ND 0.50 05/17/23 10:50
1,1,2-Trichloroethane ug/L ND 0.50 05/17/23 10:50
1,1-Dichloroethane ug/L ND 0.50 05/17/23 10:50
1,1-Dichloroethene ug/L ND 0.50 05/17/23 10:50
1,1-Dichloropropene ug/L ND 0.50 05/17/23 10:50
1,2,3-Trichlorobenzene ug/L ND 2.0 05/17/23 10:50
1,2,3-Trichloropropane ug/L ND 0.50 05/17/23 10:50
1,2,4-Trichlorobenzene ug/L ND 2.0 05/17/23 10:50
1,2,4-Trimethylbenzene ug/L ND 0.50 05/17/23 10:50
1,2-Dibromo-3-chloropropane ug/L ND 1.0 05/17/23 10:50
1,2-Dibromoethane (EDB)ug/L ND 0.50 05/17/23 10:50
1,2-Dichlorobenzene ug/L ND 0.50 05/17/23 10:50
1,2-Dichloroethane ug/L ND 0.50 05/17/23 10:50
1,2-Dichloropropane ug/L ND 0.50 05/17/23 10:50
1,3,5-Trimethylbenzene ug/L ND 0.50 05/17/23 10:50
1,3-Dichlorobenzene ug/L ND 0.50 05/17/23 10:50
1,3-Dichloropropane ug/L ND 0.50 05/17/23 10:50
1,4-Dichlorobenzene ug/L ND 0.50 05/17/23 10:50
2,2-Dichloropropane ug/L ND 0.50 05/17/23 10:50
2-Chlorotoluene ug/L ND 0.50 05/17/23 10:50
4-Chlorotoluene ug/L ND 0.50 05/17/23 10:50
Benzene ug/L ND 0.50 05/17/23 10:50
Bromobenzene ug/L ND 0.50 05/17/23 10:50
Bromochloromethane ug/L ND 0.50 05/17/23 10:50
Bromodichloromethane ug/L ND 0.50 05/17/23 10:50
Bromoform ug/L ND 0.50 05/17/23 10:50
Bromomethane ug/L ND 5.0 05/17/23 10:50
Carbon tetrachloride ug/L ND 0.50 05/17/23 10:50
Chlorobenzene ug/L ND 0.50 05/17/23 10:50
Chloroethane ug/L ND 1.0 05/17/23 10:50
Chloroform ug/L ND 0.50 05/17/23 10:50
Chloromethane ug/L ND 1.0 05/17/23 10:50
cis-1,2-Dichloroethene ug/L ND 0.50 05/17/23 10:50
cis-1,3-Dichloropropene ug/L ND 0.50 05/17/23 10:50
Dibromochloromethane ug/L ND 0.50 05/17/23 10:50
Dibromomethane ug/L ND 0.50 05/17/23 10:50
Dichlorodifluoromethane ug/L ND 0.50 IH05/17/23 10:50
Diisopropyl ether ug/L ND 0.50 05/17/23 10:50
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 27 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4021669
Associated Lab Samples:92666177001, 92666177006, 92666177007
Matrix:Water
Analyzed
Ethanol ug/L ND 200 05/17/23 10:50
Ethylbenzene ug/L ND 0.50 05/17/23 10:50
Hexachloro-1,3-butadiene ug/L ND 2.0 05/17/23 10:50
Isopropylbenzene (Cumene)ug/L ND 0.50 05/17/23 10:50
m&p-Xylene ug/L ND 1.0 05/17/23 10:50
Methyl-tert-butyl ether ug/L ND 0.50 05/17/23 10:50
Methylene Chloride ug/L ND 2.0 05/17/23 10:50
n-Butylbenzene ug/L ND 0.50 05/17/23 10:50
n-Propylbenzene ug/L ND 0.50 05/17/23 10:50
Naphthalene ug/L ND 2.0 05/17/23 10:50
o-Xylene ug/L ND 0.50 05/17/23 10:50
sec-Butylbenzene ug/L ND 0.50 05/17/23 10:50
Styrene ug/L ND 0.50 05/17/23 10:50
tert-Butylbenzene ug/L ND 0.50 05/17/23 10:50
Tetrachloroethene ug/L ND 0.50 05/17/23 10:50
Toluene ug/L ND 0.50 05/17/23 10:50
trans-1,2-Dichloroethene ug/L ND 0.50 05/17/23 10:50
trans-1,3-Dichloropropene ug/L ND 0.50 05/17/23 10:50
Trichloroethene ug/L ND 0.50 05/17/23 10:50
Trichlorofluoromethane ug/L ND 1.0 05/17/23 10:50
Vinyl chloride ug/L ND 1.0 05/17/23 10:50
1,2-Dichloroethane-d4 (S)%108 70-130 05/17/23 10:50
4-Bromofluorobenzene (S)%97 70-130 05/17/23 10:50
Toluene-d8 (S)%102 70-130 05/17/23 10:50
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4021670LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 20.620 103 60-140
1,1,1-Trichloroethane ug/L 21.720 109 60-140
1,1,2,2-Tetrachloroethane ug/L 22.620 113 60-140
1,1,2-Trichloroethane ug/L 22.120 110 60-140
1,1-Dichloroethane ug/L 24.220 121 60-140
1,1-Dichloroethene ug/L 24.020 120 60-140
1,1-Dichloropropene ug/L 25.320 126 60-140
1,2,3-Trichlorobenzene ug/L 18.320 91 60-140
1,2,3-Trichloropropane ug/L 21.220 106 60-140
1,2,4-Trichlorobenzene ug/L 19.120 96 60-140
1,2,4-Trimethylbenzene ug/L 21.120 106 60-140
1,2-Dibromo-3-chloropropane ug/L 18.320 92 60-140
1,2-Dibromoethane (EDB)ug/L 21.920 110 60-140
1,2-Dichlorobenzene ug/L 20.920 104 60-140
1,2-Dichloroethane ug/L 22.920 114 60-140
1,2-Dichloropropane ug/L 23.420 117 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 28 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4021670LABORATORY CONTROL SAMPLE:
LCSSpike
1,3,5-Trimethylbenzene ug/L 21.420 107 60-140
1,3-Dichlorobenzene ug/L 21.420 107 60-140
1,3-Dichloropropane ug/L 22.020 110 60-140
1,4-Dichlorobenzene ug/L 20.620 103 60-140
2,2-Dichloropropane ug/L 23.020 115 60-140
2-Chlorotoluene ug/L 22.120 111 60-140
4-Chlorotoluene ug/L 21.920 110 60-140
Benzene ug/L 22.520 112 60-140
Bromobenzene ug/L 20.720 104 60-140
Bromochloromethane ug/L 22.420 112 60-140
Bromodichloromethane ug/L 20.020 100 60-140
Bromoform ug/L 17.320 86 60-140
Bromomethane ug/L 23.420 117 60-140
Carbon tetrachloride ug/L 18.820 94 60-140
Chlorobenzene ug/L 21.620 108 60-140
Chloroethane ug/L 37.1 L12018660-140
Chloroform ug/L 23.920 119 60-140
Chloromethane ug/L 27.220 136 60-140
cis-1,2-Dichloroethene ug/L 23.520 118 60-140
cis-1,3-Dichloropropene ug/L 21.320 106 60-140
Dibromochloromethane ug/L 19.720 99 60-140
Dibromomethane ug/L 20.220 101 60-140
Dichlorodifluoromethane ug/L 34.3 IH,L12017160-140
Diisopropyl ether ug/L 21.920 110 60-140
Ethanol ug/L 888800 111 60-140
Ethylbenzene ug/L 21.520 108 60-140
Hexachloro-1,3-butadiene ug/L 18.220 91 60-140
Isopropylbenzene (Cumene)ug/L 21.320 106 60-140
m&p-Xylene ug/L 42.440 106 60-140
Methyl-tert-butyl ether ug/L 20.920 105 60-140
Methylene Chloride ug/L 21.920 109 60-140
n-Butylbenzene ug/L 22.220 111 60-140
n-Propylbenzene ug/L 22.020 110 60-140
Naphthalene ug/L 20.720 104 60-140
o-Xylene ug/L 21.020 105 60-140
sec-Butylbenzene ug/L 21.220 106 60-140
Styrene ug/L 21.620 108 60-140
tert-Butylbenzene ug/L 17.120 85 60-140
Tetrachloroethene ug/L 19.020 95 60-140
Toluene ug/L 20.920 104 60-140
trans-1,2-Dichloroethene ug/L 24.520 123 60-140
trans-1,3-Dichloropropene ug/L 20.320 102 60-140
Trichloroethene ug/L 21.620 108 60-140
Trichlorofluoromethane ug/L 23.620 118 60-140
Vinyl chloride ug/L 21.520 108 60-140
1,2-Dichloroethane-d4 (S)%107 70-130
4-Bromofluorobenzene (S)%100 70-130
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 29 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4021670LABORATORY CONTROL SAMPLE:
LCSSpike
Toluene-d8 (S)%101 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4021671MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92666177007
4021672
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 120 60-140119 020ND23.9 23.9
1,1,1-Trichloroethane ug/L 20 138 60-140137 120ND27.6 27.3
1,1,2,2-Tetrachloroethane ug/L 20 128 60-140127 120ND25.7 25.3
1,1,2-Trichloroethane ug/L 20 128 60-140127 120ND25.6 25.3
1,1-Dichloroethane ug/L M12015160-140151 020ND30.2 30.2
1,1-Dichloroethene ug/L M12015460-140156 120ND30.8 31.2
1,1-Dichloropropene ug/L M12015760-140159 120ND31.4 31.8
1,2,3-Trichlorobenzene ug/L 20 94 60-140103 920ND18.9 20.7
1,2,3-Trichloropropane ug/L 20 122 60-140120 220ND24.5 24.1
1,2,4-Trichlorobenzene ug/L 20 102 60-140106 420ND20.3 21.2
1,2,4-Trimethylbenzene ug/L 20 123 60-140123 020ND24.6 24.6
1,2-Dibromo-3-chloropropane ug/L 20 100 60-14099 020ND20.0 19.9
1,2-Dibromoethane (EDB)ug/L 20 127 60-140124 220ND25.4 24.9
1,2-Dichlorobenzene ug/L 20 116 60-140117 120ND23.2 23.5
1,2-Dichloroethane ug/L 20 136 60-140135 120ND27.3 27.1
1,2-Dichloropropane ug/L 20 140 60-140139 120ND28.0 27.8
1,3,5-Trimethylbenzene ug/L 20 123 60-140124 120ND24.6 24.8
1,3-Dichlorobenzene ug/L 20 118 60-140120 220ND23.6 24.1
1,3-Dichloropropane ug/L 20 128 60-140128 020ND25.6 25.6
1,4-Dichlorobenzene ug/L 20 114 60-140114 020ND22.8 22.8
2,2-Dichloropropane ug/L 20 136 60-140138 220ND27.2 27.7
2-Chlorotoluene ug/L 20 126 60-140127 020ND25.3 25.3
4-Chlorotoluene ug/L 20 124 60-140126 220ND24.8 25.2
Benzene ug/L 20 136 60-140134 120ND27.1 26.9
Bromobenzene ug/L 20 120 60-140119 020ND23.9 23.9
Bromochloromethane ug/L 20 134 60-140135 120ND26.8 27.1
Bromodichloromethane ug/L 20 120 60-140117 220ND24.0 23.4
Bromoform ug/L 20 89 60-14091 220ND17.9 18.3
Bromomethane ug/L M12012960-140147 1320ND25.9 29.5
Carbon tetrachloride ug/L 20 119 60-140121 220ND23.8 24.2
Chlorobenzene ug/L 20 125 60-140125 020ND25.0 25.0
Chloroethane ug/L M02023360-140226 320ND46.6 45.2
Chloroform ug/L M12014460-140139 3200.67 29.4 28.5
Chloromethane ug/L M12016360-140160 220ND32.5 32.1
cis-1,2-Dichloroethene ug/L M12014560-140144 120ND29.0 28.8
cis-1,3-Dichloropropene ug/L 20 119 60-140120 120ND23.8 24.0
Dibromochloromethane ug/L 20 109 60-140111 220ND21.8 22.1
Dibromomethane ug/L 20 117 60-140117 020ND23.4 23.4
Dichlorodifluoromethane ug/L IH,M02020260-140203 020ND40.5 40.6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 30 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92666177
Mountainview Gas House
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4021671MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92666177007
4021672
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Diisopropyl ether ug/L 20 134 60-140131 220ND26.8 26.1
Ethanol ug/L 800 128 60-140119 7800ND1030954
Ethylbenzene ug/L 20 126 60-140125 120ND25.3 25.0
Hexachloro-1,3-butadiene ug/L 20 104 60-140110 520ND20.9 22.0
Isopropylbenzene (Cumene)ug/L 20 123 60-140123 020ND24.5 24.6
m&p-Xylene ug/L 40 123 60-140123 040ND49.2 49.1
Methyl-tert-butyl ether ug/L 20 125 60-140124 020ND25.0 24.9
Methylene Chloride ug/L 20 132 60-140129 220ND26.5 25.9
n-Butylbenzene ug/L 20 123 60-140132 720ND24.7 26.4
n-Propylbenzene ug/L 20 126 60-140128 220ND25.1 25.6
Naphthalene ug/L 20 113 60-140117 320ND22.6 23.3
o-Xylene ug/L 20 122 60-140121 120ND24.4 24.1
sec-Butylbenzene ug/L 20 123 60-140125 220ND24.6 25.1
Styrene ug/L 20 123 60-140123 020ND24.7 24.7
tert-Butylbenzene ug/L 20 101 60-140102 120ND20.3 20.4
Tetrachloroethene ug/L 20 111 60-140112 120ND22.2 22.4
Toluene ug/L 20 124 60-140123 120ND24.8 24.5
trans-1,2-Dichloroethene ug/L M12015260-140152 020ND30.3 30.4
trans-1,3-Dichloropropene ug/L 20 113 60-140116 320ND22.5 23.2
Trichloroethene ug/L 20 131 60-140130 120ND26.2 26.0
Trichlorofluoromethane ug/L M12015660-140156 020ND31.1 31.3
Vinyl chloride ug/L 20 135 60-140135 020ND26.9 27.0
1,2-Dichloroethane-d4 (S)%108 70-130108
4-Bromofluorobenzene (S)%99 70-13099
Toluene-d8 (S)%99 70-130100
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 31 of 36
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92666177
Mountainview Gas House
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
This analyte exceeded secondary source verification criteria high for the initial calibration. The reported results should be
considered an estimated value.IH
Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated
samples may be biased high.L1
Matrix spike recovery and/or matrix spike duplicate recovery was outside laboratory control limits.M0
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 32 of 36
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92666177
Mountainview Gas House
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92666177001 775001MW-1 SM 6200B
92666177002 774553RW-1 SM 6200B
92666177003 774553MW-4 SM 6200B
92666177004 774553MW-5 SM 6200B
92666177005 774553MW-2 SM 6200B
92666177006 775001RW-2 SM 6200B
92666177007 775001PW-1 SM 6200B
92666177008 774553PW-3 SM 6200B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 05/22/2023 04:49 PM
Pace Analytical Services, LLC
1377 South Park Drive
Kernersville, NC 27284
[phone]
Page 33 of 36
Page 34 of 36
Page 35 of 36
Page 36 of 36

APPENDIX
ANALYTICAL HISTORY