WS-3278_3278_CA_MRP_20221020

SEMI-ANNUAL MONITORING REPORT
Site:
GILBARCO
7300 WEST FRIENDLY AVENUE
GREENSBORO, GUILFORD COUNTY, NORTH CAROLINA
INCIDENT NO. 3278
UIC Permit WI0400091
Submitted To:
MR. JOHN BURKE
GILBARCO
7300 WEST FRIENDLY AVENUE
GREENSBORO, NORTH CAROLINA 27410
Prepared By:
ENVIROTRAC LTD.
7343 WEST FRIENDLY AVENUE, SUITE J
GREENSBORO, NORTH CAROLINA 27410
[phone]
OCTOBER 20, 2022
11.990009.00 i October 20, 2022
© 2022 EnviroTrac
Report Prepared for:
Mr. John Burke Gilbarco
Post Office Box 22087
Greensboro, North Carolina 27420-2087
SEMI-ANNUAL MONITORING REPORT
GILBARCO
7300 WEST FRIENDLY AVENUE
GREENSBORO, NORTH CAROLINA
Prepared by:
Annamarie Blauser, PG
Senior Scientist
Reviewed by:
Christopher W. Hay, EI
Principal
EnviroTrac Ltd.
7343 W. Friendly Avenue, Suite J
Greensboro, North Carolina 27410

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© 2022 EnviroTrac
TABLE OF CONTENTS
______________________________________________________________________________
1 INTRODUCTION..................................................................................................................1
2 RECEPTOR SURVEY .........................................................................................................2
3 HYDROGEN AND OXYGEN DELIVERY SYSTEM INSTALLATION ...............................3
4 GROUNDWATER MONITORING ACTIVITIES ..................................................................8
5 GROUNDWATER ANALYTICAL RESULTS .....................................................................9
6 CONCLUSIONS AND RECOMMENDATIONS ................................................................10
7 LIMITATIONS ....................................................................................................................11

TABLES
1 Groundwater Elevation Data
2 Estimated Dissolved Gas Concentrations at Injection Wells
3 Aquifer Characteristics Field Analysis Summary
4 Summary of Groundwater Sample Results
5 Historical Summary of Groundwater Sample Results

FIGURES
1 Site Location Map
2 Site Plan
3 Shallow Groundwater Potentiometric Map
4 Total VOCs Concentrations
5 Total Chlorinated Hydrocarbons Concentrations
6 Tetrachloroethene Isoconcentration
7 Trichloroethene Isoconcentration
8 Vinyl Chloride Isoconcentration
9 Benzene Isoconcentration
10 Methylene Chloride Isoconcentration
11 MTBE Isoconcentration
12 N-Propylbenzene Isoconcentration
13 Naphthalene Isoconcentration

APPENDICES
A Laboratory Report
B Volatile Organic Compounds Versus Time Graphs

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SEMI-ANNUAL MONITORING REPORT
GILBARCO
7300 WEST FRIENDLY AVENUE GREENSBORO, NORTH CAROLINA

1 INTRODUCTION
______________________________________________________________________________

The subject site is located at 7300 West Friendly Avenue in Greensboro, Guilford County, North
Carolina (Figure 1). A groundwater pump and treat system is operating at the site. The system
consists of four recovery wells, an oil-water separator, and an air stripping system.

In January 2008, a CAP Addendum was submitted recommending the use of passive hydrogen
and oxygen injection to degrade the chlorinated and petroleum hydrocarbons in groundwater at
the site. The baseline sampling event was conducted on June 5, 2008. The hydrogen system
was installed in June of 2008 and began operating on June 13, 2008. In August 2015,
EnviroTrac initiated passive oxygen injection in monitoring wells MW-30, MW-31, MW-32, MW-
40, and MW-41.

As a result of contaminant levels detected in MW-47, MW-48 and MW-49, four new wells, three
shallow and one deep (MW-50, MW-51, MW-52, and MW-53D), were installed between January
12 and 18, 2012. In August 2012, an additional deep well MW-54D was installed. A modified
injection permit was approved by NCDEQ on September 4, 2012. Injection of 3DMe in 16
injection wells began on September 24, 2012. In November 2014, NCDEQ approved flushing
the 16 injection wells with water. The injection was initiated December 23, 2014 and continued
through April 2015. Each of the 16 injection wells was supplied with 250 gallons of water to flush
any remaining fatty acids from the 3DMe out of the wells. This technology works in concert with
the existing groundwater recovery system and supplements the ability of the system to contain
the contaminant plume within the property limits and reduce contaminant levels.

The purpose of this report is to summarize the groundwater monitoring performed in September
2022.

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2 RECEPTOR SURVEY
______________________________________________________________________________

The receptor survey was updated in November 2011. Various utilities were identified within 500
feet of the source area. No public or private water supply wells were identified within 0.5 mile of
the site and the nearest surface water intake for the City of Greensboro public water supply is
located 4.3 miles from the site. There is a stormwater pond near the northeast corner of the
building. Additionally, there is a stream in the northern portion of the site. Two stormwater ponds
southwest of the site were identified on the National Wetlands Inventory Map. Properties
surrounding the site are industrial and have access to the city water supply system and the city
sewer system. Review of the receptor survey information in September 2018 indicated no
changes were observed.

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3 HYDROGEN AND OXYGEN DELIVERY SYSTEM INSTALLATION
______________________________________________________________________________

A permit was granted from the Underground Injection Control (UIC) Program within the Aquifer
Protection Section of the North Carolina Department of Environmental Quality (NCDEQ) for the
installation of a hydrogen and oxygen delivery system for remediation of contaminants in
groundwater at the site. Injection Well Permit WI0400091 is currently being renewed.

3.1 HYDROGEN DELIVERY SYSTEM

Installation of the hydrogen injection equipment was initiated April 9 through April 11, 2008. The
existing protective casings were removed from monitoring wells MW-7, MW-10, MW-23D, MW-
29, and MW-34. Ten-inch diameter PVC casings were installed to a depth of five feet below
ground surface adjacent to the monitoring well locations to hold the hydrogen cylinders. Six to
ten inches of gravel was placed in the bottom of each casing. Excavations were completed for
installation of 24-inch square, steel well vaults and the vaults were set in concrete, flush with the
ground surface. Protective vaults were also installed adjacent to the existing above grade
protective covers for monitoring wells MW-14D, MW-15, MW-16, MW-24, and MW-43D. The 15-
inch by 24-inch PVC protective vaults were installed over the cylinder casings. Vents were
installed in the protective vaults to allow hydrogen to be released in the case of a leak from the
delivery system.

The HiSOC equipment from InVentures was installed at the site in ten existing monitoring wells
(MW-7, MW-10, MW-14D, MW-15, MW-16, MW-23D, MW-24, MW-29, MW-34, and MW-43D)
on June 13, 2008. A HiSOC unit and filter was installed within each injection well. Hydrogen is
supplied from a compressed gas cylinder with a regulator and gauge connected to the HiSOC
unit by Parflex tubing and a support cable. Four-foot grounding rods were installed and
connected to the regulator assembly of the gas cylinders. Well construction information and
groundwater elevations of the monitoring wells are included in Table 1.

On May 13, 2009 the HiSOC equipment was removed from monitoring well MW-10 and installed
in monitoring well MW-25. The hydrogen cylinder was placed on the existing concrete well pad
and a protective cover was constructed around the well and above ground protective well
casing. A new grounding rod was installed. The details of the HiSOC installation at MW-25 are

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substantially the same as described for the initial installation. On September 22, 2011, the
HiSOC equipment in MW-25 was extended to the bottom of the well. The hydrogen pressure in
MW-14D and MW-24 was increased from 45 pounds per square inch (psi) to 65 psi. HiSOC
units installed in MW-23D and MW-29 had been working intermittently since May and June
2011, respectively. Following the completion of maintenance and testing, both units were
removed in September and shipped to the manufacturer for repair. Both units were re-installed
at the site on November 8, 2011. On December 29, 2011, the HiSOC equipment was removed
from monitoring wells MW-23D and MW-34 and installed in monitoring wells MW-47 and MW-
49. On February 15, 2013 the HiSOC equipment was removed from MW-47 and MW-49 and
installed in monitoring wells MW-14 and MW-30. On February 20, 2013 the HiSOC equipment
was removed from MW-29 and installed in MW-42.

In December 2014 the HiSOCs in monitoring wells MW-14 and MW-25 were flooded. The
HiSOCs were removed and allowed adequate time to dry out. They were tested on-site and it
was determined that the HiSOCs were no longer operational. In February 2015 the two HiSOCs
were replaced with alternate equipment to emit hydrogen into the groundwater. The HiSOCs
were replaced with silicone tubing wrapped around approximately 4.5 feet of 0.75-inch diameter
PVC pipe. The regulator was set at a pressure of 20 psi. The other portions of the installation
remain the same.

In August 2015 HiSOC or hydrogen diffusers were removed from monitoring wells MW-14, MW-
14D, MW-15, MW-30 and MW-42 and placed in monitoring wells MW-46, MW-47, MW-49, MW-
52 and MW-53D. Monitoring wells MW-46, MW-47, MW-49, MW-52 and MW-53D installations
are substantially the same as previously described for wells with stick -up well covers with the
gas cylinders placed above grade, secured to the well cover. In June 2017 hydrogen diffusers
were placed in monitoring wells MW-14, MW-14D, MW-15, MW-42, MW-45, MW-48, and MW-
54D. The wells were either previously prepared to receive hydrogen injection equipment or
constructed with stick-up well covers with the exception of MW-54D. A hydrogen cylinder was
placed at MW-54D and connected to a post installed next to the well pad.

On January 26, 2018, The UIC Program was notified of plans to install additional hydrogen
diffusers at the site. In February 2018, sixteen injection wells IW-1 through IW-16 were drilled
and installed to depths ranging from 26.8 to 33.5 feet below ground surface. In February 2018,
hydrogen diffusers were installed in injection wells IW-1 through IW-16. The hydrogen diffusers

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consist of silicone tubing wrapped around approximately 4.5 feet of 0.75-inch diameter PVC
pipe. Hydrogen is supplied from a compressed gas cylinder with a regulator and gauge
connected to the hydrogen diffuser by Parflex tubing and a support cable. Four-foot grounding
rods were installed and connected to the regulator assembly of the gas cylinders. An Injection
Event Record was submitted to the UIC Program on February 16, 2018. Current HiSOC and
hydrogen diffuser installation locations are shown on the figures in orange.

In anaerobic bioremediation applications, the hydrogen diffusers saturate the treatment well with
dissolved hydrogen, typically at a concentration of 1 to 4 parts per million (ppm) depending on
the immersion depth of the unit in groundwater. The dissolved hydrogen concentration achieved
in the injection well depends on the height of the water column in the well. Each atmosphere of
pressure allows for a maximum of approximately 1.6 ppm of dissolved hydrogen. Table 2
estimates the dissolved hydrogen concentrations in each of the injection wells. These
concentrations are estimated based on the approximate pressure at the installation depth of the
hydrogen diffuser in the injection wells. The calculation is made with the assumption that 1.6
ppm of hydrogen is dissolved in the groundwater per atmosphere of pressure.

Hydrogen is infused from the diffusers into the treatment well at a typical rate of 28 standard
cubic centimeters per minute or approximately 1.4 cubic feet per day. The hydrogen
consumption in each of the injection wells is tracked to estimate the remaining service life of the
hydrogen cylinders.

The hydrogen diffusers distribute dissolved hydrogen rich water throughout the screened
interval of the injection well. Hydrogen rich water disperses around the well into the adjacent
groundwater forming a treatment zone allowing enhanced bioremediation to degrade the target
contaminants.

3.2 OXYGEN DELIVERY SYSTEM

Installation of the oxygen injection equipment was initiated on August 4 through 6, 2015. The
existing protective casings were removed from monitoring wells MW-31, MW-32, MW-40 and
MW-41. Monitoring well MW-30 was previously set up to receive hydrogen. Ten-inch diameter
PVC casings were installed to a depth of five feet below ground surface adjacent to the
monitoring well locations to hold the oxygen cylinders. Six to ten inches of gravel was placed in

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the bottom of each casing. Excavations at MW-31 and MW-32 were completed for installation of
24-inch square, steel well vaults and the vaults were set in concrete, flush with the ground
surface. Protective vaults (15-inch by 24-inch PVC) were installed at MW-40 and MW-41 over
the cylinder casings.

The oxygen diffusers were installed at the site in five existing monitoring wells (MW-30, MW-31,
MW-32, MW-40 and MW-41) on August 10, 2015. In June 2017, oxygen diffusers were
installed in monitoring wells MW-13D, MW-23D, and MW-28. Monitoring well MW-23D was
previously prepared to receive hydrogen injection equipment. The existing protective casings at
MW-13D and MW-28 were removed. A 15-inch by 24-inch PVC protective vault was installed at
MW-13D. At monitoring well MW-28, a 24-inch square, steel well vault was installed in the
pavement, flush with the pavement. The monitoring wells were modified at the wellhead to
accept the oxygen delivery equipment. The passive oxygen delivery devices were connected to
a pressurized oxygen cylinder at the top of the well. Each oxygen cylinder is equipped with a
regulator and grounded.

The oxygen diffuser consists of silicone tubing wrapped around approximately 4.5 feet of 0.75-
inch diameter PVC pipe. Oxygen is supplied from a compressed gas cylinder with a regulator
and gauge connected to the oxygen diffuser by Parflex tubing and a support cable. Four-foot
grounding rods were installed and connected to the regulator assembly of the gas cylinders.
Current oxygen diffuser installation locations are shown on the figures in blue.

The oxygen injection system provides dissolved oxygen to the treatment well, typically at a
concentration of 40 to 200 parts per million (ppm) depending on the immersion depth of the unit
in groundwater. The dissolved oxygen concentration achieved in the injection well depends on
the height of the water column in the well. Each atmosphere of pressure allows for a maximum
of approximately 41 ppm of dissolved oxygen. Table 2 estimates the dissolved oxygen
concentrations in each of the injection wells. These concentrations are estimated based on the
approximate pressure at the installation depth of the oxygen diffuser in the injection wells. The
calculation is made with the assumption that 41 ppm of oxygen is dissolved in the groundwater
per atmosphere of pressure.

Oxygen is infused from the diffusers into the treatment well at a typical rate of 15 standard cubic
centimeters per minute or approximately 0.8 cubic feet per day. The oxygen consumption in

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each of the injection wells is tracked to estimate the remaining service life of the oxygen
cylinders.

The oxygen delivery system produces a convection current in the well to distribute dissolved
oxygen throughout the screened interval. A curtain of oxygen rich water disperses around the
well into the adjacent groundwater forming a treatment zone allowing enhanced bioremediation
to degrade the target contaminants.

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4 GROUNDWATER MONITORING ACTIVITIES
______________________________________________________________________________

Static water levels were measured in the existing monitoring wells on-site on September 14,
2022. Groundwater samples were collected from 16 wells (MW-7, MW-10, MW-12, MW-12D,
MW-13D, MW-14D, MW-27, MW-33, MW-40, MW-41, MW-42, MW-44, MW-48, MW-51 and
MW-52) and were analyzed for VOCs by EPA Method 6200B. Monitoring well MW-32 was not
sampled due to a piece of equipment parked on top of it. Field parameters including
temperature, conductivity, pH, dissolved oxygen, and oxidation-reduction potential of
representative groundwater samples were recorded from each monitoring well sampled. The
monitoring well locations are shown on Figure 2.

Groundwater elevations in the existing monitoring wells were used to determine the
groundwater flow direction and average hydraulic gradient. Table 1 provides a summary of
monitoring well construction details and the groundwater elevations measured on September
14, 2022. The static water levels measured between monitoring wells MW-30 and MW-51
indicate a horizontal groundwater flow gradient of 0.05 feet per foot to the northwest. A vertical
groundwater flow gradient was estimated between MW-14 and MW-14D to be 0.305 feet per
foot downward. A vertical groundwater flow gradient was estimated between MW-46 and MW-
53D to be 0.05 feet per foot upward. A groundwater flow map of the shallow aquifer based on
the recorded groundwater elevations is presented as Figure 3.

Based on data provided in the October 1996 Corrective Action Plan, the surficial aquifer has an
average hydraulic conductivity of 0.086 feet per day. The average groundwater velocity is
estimated to be 0.01 feet per day (5 feet per year), based on the average groundwater gradient
from the September 14, 2022 water level measurements and an estimated effective porosity of
thirty percent.

Groundwater samples were collected from the monitoring wells using disposable polyethylene
bailers. The wells were purged of three well volumes of water or until they were bailed dry.
Groundwater samples were placed in laboratory prepared containers and maintained on ice
until delivered to Pace Analytical Laboratories in Huntersville, North Carolina. Chain-of-custody
documents were maintained throughout the collection and transportation process and are
included in Appendix A with the laboratory report.

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5 GROUNDWATER ANALYTICAL RESULTS
______________________________________________________________________________

The field measurements recorded on September 14, 2022 are summarized in Table 3.
Conductivity is recorded for quality control and sampling consistency. Generally, dissolved
oxygen and oxidation-reduction potential are significantly lower than background levels in
hydrogen injection wells. Dissolved oxygen is significantly higher than background levels in
oxygen injection wells.

The contaminant plume consists of VOCs, either petroleum related or chlorinated hydrocarbons.
VOCs were detected at levels above the respective North Carolina groundwater quality
standards established in 15A NCAC, Subchapter 2L (2L Standards) in 5 of the 16 monitoring
wells sampled on September 14, 2022. The analytical results are summarized in Table 4 and a
historical summary of groundwater sampling results is presented in Table 5. Hydrogen injection
targets the reduction of chlorinated hydrocarbon contaminant levels in the groundwater. Oxygen
injection targets the reduction of petroleum hydrocarbons. The VOCs targeted during the
hydrogen and oxygen injection phases of the corrective action plan are separated in Table 4
and Table 5 by a double line. Total VOCs concentrations detected during the September 14,
2022 sampling event are shown on Figure 4 and total chlorinated hydrocarbons concentrations
detected during the sampling event are shown on Figure 5.

The following individual compounds exceeded the 2L Standards: tetrachloroethene (PCE),
trichloroethene (TCE), vinyl chloride, benzene, methylene chloride, methyl tert-butyl ether
(MTBE), n-propylbenzene, and naphthalene. Isoconcentration maps for each of the individual
compounds are shown on Figure 6 through Figure 13.

The concentrations of total VOCs, total chlorinated hydrocarbons, and total petroleum
hydrocarbons for each monitoring well sampled are shown in individual graphs included in
Appendix B. The graphs of total VOCs, total chlorinated hydrocarbons, and total petroleum
hydrocarbons concentrations have established decreasing trends or no 2L Standards violations
in each of the monitoring wells.

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6 CONCLUSIONS AND RECOMMENDATIONS
______________________________________________________________________________

The groundwater potentiometric map indicates that the groundwater flow direction at the site is
to the northwest. Groundwater aquifer characteristics monitored during the sampling event
indicate suitable conditions for natural attenuation of chlorinated and petroleum hydrocarbons
exist within localized areas at the site. Daughter products of PCE and TCE are present in
groundwater at the site indicating reductive dechlorination is effectively degrading chlorinated
hydrocarbons. Historical chlorinated hydrocarbon contaminant levels generally follow the trends
of total VOCs in the wells. A continued reduction of total chlorinated hydrocarbons as well as
total VOCs has been achieved through passive hydrogen and oxygen injection.

Corrective action monitoring should be conducted on a semi-annual schedule and the next
event should be scheduled in March 2023. Monthly system checks should also be conducted to
monitor the rate of hydrogen and oxygen consumption from the passive injection system.

In accordance with the injection permit, future monitoring events will include sampling
monitoring wells MW-12, MW-13D, MW-33, MW-34, MW-40, MW-48, MW-51, and MW-52.
Additionally, monitoring wells MW-14, MW-15, MW-16, MW-24, MW-25, MW-28, MW-30, MW-
43D, MW-45, MW-46, MW-47, MW-49, MW-50, MW-53D, and MW-54D will be sampled during
the March 2023 monitoring event to assess contaminant levels.

With the closure of Incident B, we propose to abandon monitoring wells MW-28, MW-32, and
MW-34. Monitoring wells MW-28 and MW-32 have not detected contaminant exceeding the 2L
Standard since March 2020 and 2017, respectively. Monitoring well MW-34 has been used as a
sentinel well for the west side of the groundwater plume historically. However, the plume has
decreased in area and monitoring wells MW-31, MW-40 and MW-14D now define the western
boundary of the plume. Additionally, we believe recovery wells RW-1, RW-2, RW-3, and RW-4
are no longer of value to the remediation process and propose to abandon each of the wells.
We look forward to hearing your thoughts on the proposed monitoring well and recovery well
abandonment.

Copies of this report have been provided to the Guilford County Department of Environmental
Health and Water Quality Regional Operations Section DWR Winston-Salem Regional Office.

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7 LIMITATIONS
______________________________________________________________________________

EnviroTrac offers various levels of investigative and engineering services to suit the varying
needs of different clients. It should be recognized that definition and evaluation of geologic and
environmental conditions are a difficult and inexact science. Judgments leading to conclusions
and recommendations are generally made with incomplete knowledge of the subsurface
conditions present due to the limitations of data from field studies. Although risk can never be
eliminated, more-detailed and extensive studies yield more information, which may help
understand and manage the level of risk. Since detailed study and analysis involves greater
expense, our clients participate in determining levels of service that provide adequate
information for their purposes at acceptable levels of risk.

The information included on graphic representations in the Quarterly Monitoring Report has
been compiled from a variety of sources and is subject to change without notice. EnviroTrac
makes no representations or warranties, express or implied, as to accuracy, completeness,
timeliness, or rights to the use of such information. These documents are not intended for use
as a land survey product, nor are they designed or intended as a construction design document.
The use of the information contained on these graphic representations is at the sole risk of the
party using the information.

TABLES

Well ID Total Depth
(feet TOC)
TOC
Elevation
(feet)
Bottom
Elevation
(feet)
Date Water
Level Measured
Static Water
Level
(feet TOC)
Groundwater
Elevation
(feet)
MW-7 29.9 861.19 831.29 09/14/22 5.10 856.09
MW-10 33.6 857.68 824.08 09/14/22 7.43 850.25
MW-11 25.1 859.26 834.16 09/14/22 12.65 846.61
MW-12 16.8 851.50 834.70 09/14/22 8.21 843.29
MW-12D 27.0 851.06 824.06 09/14/22 9.56 841.50
MW-13D 39.4 860.40 821.00 09/14/22 13.08 847.32
MW-14 24.8 859.32 834.52 09/14/22 14.43 844.89
MW-14D 41.0 859.26 818.26 09/14/22 19.40 839.86
MW-15 25.2 857.71 832.51 09/14/22 10.90 846.81
MW-16 35.2 863.60 828.40 09/14/22 28.78 834.82
MW-24 58.8 858.81 800.01 09/14/22 21.23 837.58
MW-25 168.9 861.47 692.57 09/14/22 23.79 837.68
MW-27 44.0 862.74 818.74 09/14/22 11.22 851.52
MW-28 23.8 861.54 837.74 09/14/22 5.90 855.64
MW-30 73.4 862.28 788.88 09/14/22 10.81 851.47
MW-31 19.0 861.41 842.41 09/14/22 --- ---
MW-32 19.6 861.23 841.63 09/14/22 --- ---
MW-33 21.0 861.77 840.77 09/14/22 14.14 847.63
MW-34 21.0 860.45 839.45 09/14/22 15.31 845.14
MW-40 29.7 861.43 831.73 09/14/22 8.27 853.16
MW-41 20.3 860.37 840.07 09/14/22 5.46 854.91
MW-42 35.0 865.32 830.32 09/14/22 30.40 834.92
MW-43D 53.0 865.47 812.47 09/14/22 30.72 834.75
MW-44 28.5 NM --- 09/14/22 16.30 ---
MW-45 36.2 861.79 825.59 09/14/22 28.15 833.64
MW-46 32.7 856.73 824.03 09/14/22 26.50 830.23
MW-47 32.3 857.17 824.87 09/14/22 24.89 832.28
MW-48 30.4 844.07 813.67 09/14/22 19.41 824.66
MW-49 35.2 853.05 817.85 09/14/22 26.52 826.53
MW-50 16.5 834.67 818.17 09/14/22 14.60 820.07
MW-51 14.4 834.49 820.09 09/14/22 12.08 822.41
MW-52 13.7 831.87 818.17 09/14/22 13.23 818.64
MW-53D 46.0 857.48 811.48 09/14/22 26.55 830.93
MW-54D 26.5 832.78 806.28 09/14/22 9.91 822.87
NOTES:
feet TOC = feet below top of well casing
NM = Not measured
TABLE 1: GROUNDWATER ELEVATION DATA
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TABLE 2: ESTIMATED DISSOLVED GAS CONCENTRATIONS AT INJECTION WELLS
Well ID Total
Depth
(feet TOC)
TOC
Elevation
(feet)
Bottom
Elevation
(feet)
Date Water
Level
Measured
Static
Water
Level
(feet TOC)
Groundwater
Elevation
(feet)
Depth of
Water
(feet)
Estimated
Dissolved Gas
Concentration
(ppm)
Hydrogen
MW-14 24.8 859.32 834.52 09/14/22 14.43 844.89 10.37 2.1
MW-14D 41.0 859.26 818.26 09/14/22 19.40 839.86 21.60 2.6
MW-15 25.2 857.71 832.51 09/14/22 10.90 846.81 14.30 2.3
MW-16 35.2 863.60 828.40 09/14/22 28.78 834.82 6.42 1.9
MW-24 58.8 858.81 800.01 09/14/22 21.23 837.58 37.57 3.4
MW-25 168.9 861.47 692.57 09/14/22 23.79 837.68 145.11 8.5
MW-42 35.0 865.32 830.32 09/14/22 30.40 834.92 4.60 1.8
MW-43D 53.0 865.47 812.47 09/14/22 30.72 834.75 22.28 2.7
MW-45 36.2 861.79 825.59 09/14/22 28.15 833.64 8.05 2.0
MW-46 32.7 856.73 824.03 09/14/22 26.50 830.23 6.20 1.9
MW-47 32.3 857.17 824.87 09/14/22 24.89 832.28 7.41 2.0
MW-48 30.4 844.07 813.67 09/14/22 19.41 824.66 10.99 2.1
MW-49 35.2 853.05 817.85 09/14/22 26.52 826.53 8.68 2.0
MW-52 13.7 831.87 818.17 09/14/22 13.23 818.64 0.47 1.6
MW-53D 46.0 857.48 811.48 09/14/22 26.55 830.93 19.45 2.5
MW-54D 26.5 832.78 806.28 09/14/22 9.91 822.87 16.59 2.4
IW-1 28.0 NS NS 02/22/18 24.49 -- 3.51 1.8
IW-2 28.0 NS NS 02/22/18 24.13 -- 3.87 1.8
IW-3 28.3 NS NS 02/22/18 26.67 -- 1.58 1.7
IW-4 33.5 NS NS 02/22/18 27.74 -- 5.76 1.9
IW-5 32.0 NS NS 02/15/18 26.68 -- 5.32 1.9
IW-6 30.5 NS NS 02/15/18 26.21 -- 4.29 1.8
IW-7 28.0 NS NS 02/15/18 25.30 -- 2.70 1.7
IW-8 27.2 NS NS 02/15/18 25.79 -- 1.41 1.7
IW-9 26.8 NS NS 02/15/18 25.04 -- 1.71 1.7
IW-10 27.0 NS NS 02/22/18 26.29 -- 0.71 1.6
IW-11 30.0 NS NS 02/22/18 25.70 -- 4.30 1.8
IW-12 29.5 NS NS 02/22/18 28.24 -- 1.26 1.7
IW-13 28.5 NS NS 02/22/18 26.93 -- 1.57 1.7
IW-14 28.5 NS NS 02/22/18 26.51 -- 1.99 1.7
IW-15 30.5 NS NS 02/22/18 24.74 -- 5.76 1.9
IW-16 29.5 NS NS 02/22/18 25.03 -- 4.47 1.8
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TABLE 2: ESTIMATED DISSOLVED GAS CONCENTRATIONS AT INJECTION WELLS
Well ID Total
Depth
(feet TOC)
TOC
Elevation
(feet)
Bottom
Elevation
(feet)
Date Water
Level
Measured
Static
Water
Level
(feet TOC)
Groundwater
Elevation
(feet)
Depth of
Water
(feet)
Estimated
Dissolved Gas
Concentration
(ppm)
Oxygen
MW-7 29.9 861.19 831.29 09/14/22 5.10 856.09 24.80 71.1
MW-13D 39.4 860.40 821.00 09/14/22 13.08 847.32 26.32 72.9
MW-28 23.8 861.54 837.74 09/14/22 5.90 855.64 17.90 62.7
MW-30 73.4 862.28 788.88 09/14/22 10.81 851.47 62.59 116.9
MW-31 19.0 861.41 842.41 NM --- -- -- --
MW-32 19.6 861.23 841.63 NM --- -- -- --
MW-40 29.7 861.43 831.73 09/14/22 8.27 853.16 21.43 67.0
MW-41 20.3 860.37 840.07 09/14/22 5.46 854.91 14.84 59.0
NOTES:
feet TOC = feet below top of well casing
ppm = parts per million
NM = water level not measured
NS = not surveyed
Gas concentrations are estimated based on a saturated gas content of 1.6 ppm hydrogen per atmosphere and 41
ppm oxygen per atmosphere.
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Well ID Sample Date Temperature
( °C )
Conductivity
(mS/cm)
pH Dissolved
Oxygen
(mg/L)
ORP
(mV)
MW-7 09/14/22 18.64 0.416 6.18 1.37 191.6
MW-10 09/14/22 19.13 0.251 5.98 1.31 216.3
MW-11 09/14/22 20.25 0.251 5.93 1.31 204.5
MW-12 09/14/22 19.35 0.318 5.61 1.40 218.3
MW-12D 09/14/22 17.03 0.179 5.53 1.41 222.8
MW-13D 09/14/22 19.10 0.429 5.82 1.26 209.7
MW-14D 09/14/22 16.53 0.225 6.19 1.67 229.3
MW-27 09/14/22 18.11 0.692 6.18 1.37 213.1
MW-33 09/14/22 19.18 0.609 6.12 3.34 214.3
MW-40 09/14/22 19.85 0.576 6.60 15.86 200.9
MW-41 09/14/22 20.08 0.525 6.30 1.55 205.8
MW-42 09/14/22 17.22 0.227 9.04 1.75 189.4
MW-44 09/14/22 21.31 0.440 6.10 3.03 213.6
MW-48 09/14/22 14.58 0.134 6.52 1.49 154.8
MW-51 09/14/22 19.77 0.196 5.92 2.18 197.1
MW-52 09/14/22 --- --- --- --- ---
NOTES:
oC = degrees Celsius
mS/cm = millisiemens per centimeter
mg/L = milligrams per liter, analogous to parts per million
ORP = oxidation-reduction potential
mV = millivolts
NS = Not sampled
Conductivity is measured for consistency in groundwater sample collection.
--- = Not enough water to measure parameters
TABLE 3: AQUIFER CHARACTERISTICS FIELD ANALYSIS SUMMARY
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TABLE 4: SUMMARY OF GROUNDWATER SAMPLE RESULTSVolatile Organic Compounds by Standard Method 6200B(µg/L)PCE TCE cis-1,2-DCEVinyl Chloride1,1-DCAChloro-formBenzene Toluene Ethyl-benzeneTotal XylenesMTBE DCFM MC Naph-thalenen-Butyl-benzenen-Propyl-benzeneIsopropyl-benzenesec-Butyl-benzenetert-Butyl-benzene1,2,4-TMB1,3,5-TMBStyrene0.7 3 70 0.03 6 70 1 600 600 500 20 1000 5 6 70 70 70 70 70 400 400 70MW-7 09/14/22 BDL BDL BDL37.91.9 BDL 40 BDL 2.5 249 34.3 BDL 3.115.2 78.315.213743.3 BDL BDL 345 53.9BDL 977 1,017MW-10 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 5.2 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 5 5MW-11 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-12 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-12D 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-13D 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 13.4 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 13 13MW-14D 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-27 09/14/22 BDL BDL BDL BDL BDL BDL 026.34.7 8.5 4.252.7BDL BDL BDL 12.2 28.4 46.40 28.7 1.1 BDL BDLBDL 213 213MW-33 09/14/22 BDL BDL 0.6 BDL BDL BDL 1 BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 1 1MW-40 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-41 09/14/22 BDL BDL BDL BDL BDL BDL 013679.5 65.1 272 BDL BDL BDL1624.5 7.9 11.7 BDL BDL 240 16.91.2 997 997MW-42 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-44 09/14/22 BDL5.8BDL BDL BDL 0.8 7 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 7MW-48 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-51 09/14/22 BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 0MW-52 09/14/223.7 17.110.8 BDL BDL BDL 32 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 0 32NOTES:2L Standard = North Carolina Groundwater Standard (15A NCAC 2L .0202), effective April 1, 2013. PCE= TetrachloTetrachloroethene MTBE= Methyl-tert-butyl ether DCFM= DichlorodifluoromethaneBDL = Below Detection LimitsTCE= Trichloro Trichloroethene DIPE= Diisopropyl ether MC= Methylene Chlorideμg/L = Micrograms per liter, analogous to parts per billion DCE= DichloroeDichloroethene TMB= TrimethylbenzeneBOLD = Concentration exceeds the 2L Standard DCA= DichloroeDichloroethane TCP= TrichloropropaneNS = Not SampledTotal VOCsCollection Date2L StandardWell IDTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons11.990009.00© 2022 EnviroTrac October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6MW-709/27/90790 190BDL BDL BDL BDL BDL BDL 59.0 1,039650 5,300 1,500 5,700BDL BDL BDL 13,150 14,18901/14/92BDL360BDL BDL BDL BDL BDL BDL BDL 360480 3,900 2,100 7,100BDL BDL BDL 13,580 13,94003/11/98BDL BDL BDL354BDL BDL BDL BDL238592468 8,920 2,200 8,990BDL BDL BDL 20,578 21,17005/25/99BDL BDL BDL723BDL BDL BDL BDL3471,070253 2,280 2,290 10,800BDL BDL BDL 15,623 16,69304/22/03BDL BDL BDL BDL BDL BDL BDL BDL 88.0 88 BDL 2202,400 5,700BDL 60.0 BDL 8,380 8,46806/30/04BDL BDL2,300BDL BDL BDL BDL BDL BDL 2,300 BDL 1101,800 3,800BDL BDL5206,230 8,53008/16/05BDL BDL2,100BDL BDL BDL BDL BDL BDL 2,100 BDL BDL1,600 3,020BDL BDL5205,140 7,24008/25/06BDL BDL2,00014.0 BDL BDL BDL 1.5 14.0 2,0301.723.0 370 380 11.0 3.382.0871 2,90112/14/063.6 4.0 2,100 570BDL15.0BDL 5.1 13.0 2,7114.139.01,300 1,660BDL BDL4403,443 6,15406/05/08BDL BDL1,750BDL BDL BDL BDL BDL BDL 1,750 BDL BDL1,040 1,280BDL BDL4012,721 4,47109/04/08BDL BDL1,190BDL BDL BDL BDL BDL BDL 1,190 BDL BDL788 873BDL BDL3011,962 3,15201/05/09BDL BDL798BDL BDL BDL BDL BDL BDL 798 BDL BDL643 598BDL BDL3081,549 2,34703/05/09BDL BDL935BDL BDL BDL BDL BDL BDL 935 BDL BDL749 723BDL BDL3841,856 2,79106/24/09BDL BDL631BDL BDL BDL BDL BDL BDL 631 BDL BDL 589526BDL BDL2101,325 1,95609/02/09BDL BDL5566.327.3 7.8BDL BDL BDL 597 BDL 6.1 519 468 BDL BDL2881,290 1,88712/08/09BDL BDL4426.941.9 6.5BDL BDL BDL 497 BDL 9.7 578553BDL BDL2551,396 1,89303/30/10BDL BDL362BDL58.1 6.7BDL BDL BDL 4276.715.8 391 346 BDL BDL220980 1,40606/15/102.9BDL6968.285.4 7.5BDL BDL 2.4 802 BDL 12.2896 599BDL BDL2751,800 2,60209/22/10BDL BDL175BDL66.5BDL BDL BDL BDL 242 BDL BDL 446679BDL BDL2321,357 1,59912/09/10BDL BDL86.9BDL12.4BDL BDL BDL BDL 99 BQL BDL 158 114 BDL BDL156428 52703/24/11BDL BDL3885.9265 9.6BDL BDL BDL 669 BDL 7.2 333 306 BDL BDL176822 1,49106/14/11BDL BDL3334.11385.9 BDL BDL BDL 481 BDL 9.3 590 396 BDL BDL2271,237 1,71809/22/11BDL BDL331BDL182 7.0BDL BDL BDL 520 BDL 6.3 513 321 BDL BDL1981,062 1,58212/15/11BDL BDL3065.1271 10.2BDL BDL BDL 592 BDL 8.1 547 326 BDL BDL1671,062 1,65403/27/12BDL BDL3756.9277 13.7BDL BDL BDL 6736.216.7 557 379 BDL BDL2112,850 3,52206/21/12BDL BDL1666.6140BDL BDL BDL BDL 313 BDL 12.7 518 355.6 BDL BDL1942,758 3,07109/21/12BDL BDL3914.3293 10.6BDL BDL BDL 699 BDL 2.7 208 88.6 BDL BDL1651,210 1,90909/10/13BDL BDL1281.6 J278 10.6BDL 1.8 J BDL 420 BDL 6.4 436 210.3 BDL BDL1541,877 2,29712/06/13BDL BDL3654.5434BDL8.8BDL BDL 8125.717.2 607 350.5 BDL BDL2032,545 3,35712/29/14BDL BDL5208.2507 19.0BDL BDL BDL 1,054 BDL 35.2771 552.64.5 BDL2723,201 4,25503/04/15BDL BDL71814.5306 21.8BDL BDL BDL 1,060 BDL 18.5869 510.0BDL BDL2493,632 4,69206/10/15BDL BDL50912.1224 20.2BDL BDL BDL 765 BDL 12.1663375 BDL BDL1972,990 3,75509/16/15BDL BDL5209.6372 16.0BDL BDL BDL 918 BDL 23.1804516.4 BDL BDL1953,322 4,24012/10/15 BDL BDL4129.5430 20.2BDL BDL BDL 872 BDL 12.9685395 BDL BDL2072,956 3,82806/07/16BDL BDL2576.7366 17.2BDL BDL BDL 647BDL 8.9641385.9 BDL BDL1842,887 3,53409/06/16BDL BDL1733.4414 12.0BDL BDL BDL 602BDL 7.4641328.5 4.6 BDL2002,745 3,34812/07/16BDL BDL184BDL421 6.3BDL BDL BDL 611 BDL 35.5857 545.9BDL BDL2303,280 3,89103/09/17BDLBDL44.7BDL494 6.4BDL BDL BDL 545 BDL 18.1662260.4 BDL BDL2102,717 3,26206/08/17BDLBDL22.7BDL597 9.2BDL BDLBDL 629BDL 13.0709275.5 BDL BDL1642,410 3,03912/04/17BDLBDL11.6BDL729 11.5BDL BDLBDL 752BDL 8.1708263.1 BDL BDL1982,760 3,51206/13/18BDLBDL13.4BDL277 6.3BDL BDLBDL 297BDL 4.9 407 150.1 BDL BDL1301,879 2,17612/19/18BDL BDL 4.1 BDL328 8.1BDL BDLBDL 340BDL 3.9 424 69.0 BDL BDL1191,574 1,91406/12/19BDL BDL BDL BDL84.03.7 BDL BDLBDL 88BDL 3.6 325 83.2 BDL BDL85.91,337 1,42512/05/19BDL BDL BDL BDL64.7BDL BDL BDLBDL 65BDL 5.7 321 81.7 BDL BDL1121,235 1,30009/09/20BDL BDL BDL BDL49.6BDL BDL BDLBDL 50BDL 2.2 276 44.8 BDL BDL76.7987 1,03609/09/21BDL BDL BDL BDL56.0BDL BDL BDLBDL 56BDL BDL 227 36.1 BDL 43.980.2953 1,00909/14/22BDL BDL BDL BDL37.91.9 BDL BDLBDL 58BDL 2.5 249 34.3 BDL BDL78.3959 1,017MW-1009/27/9076.0 140BDL BDL BDL BDL BDL BDL 140 3562,90066.0 BDL670BDL BDL BDL 3,636 3,99201/14/92BDL78.0BDL 120 BDL BDL BDL BDL BDL 1982,900BDL BDL 120 BDL BDL BDL 3,020 3,21803/11/98BDL BDL BDL 13.9 BDL BDL BDL BDL BDL 14234BDL BDL BDL BDL BDL BDL 234 24805/26/99BDL BDL BDL BDL BDL BDL BDL BDL BDL 036.0BDL BDL BDL BDL BDL BDL 36 3610/10/025.92.3 BDL 4.4 BDL BDL BDL BDL 7.3 202208.5 16.0 71.02,20016.0 BDL 2,532 2,55104/22/033.21.3 BDL BDL BDL BDL BDL BDL 2.6 747.0BDL BDL BDL1,1002.9 BDL 1,150 1,15706/30/04BDL BDL 8.1 BDL BDL BDL BDL BDL BDL 822.0BDL 2.8 5.87702.8 BDL 803 81208/16/05BDL BDL BDL BDL BDL BDL BDL BDL BDL 043.0BDL BDL BDL680BDL BDL 723 723Continued on next pageCHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons11.990009.00© 2022 EnviroTrac Page 1 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-10 (Continued)08/24/06BDL BDL 3.0 BDL BDL BDL BDL BDL BDL 38.1BDL BDL BDL3604.3 BDL 372 37505/04/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 5.6 BDL BDL 6 606/13/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 0.84 BDL 0.55 BDL44.41.2 BDL 47 4712/19/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 2.40 BDL 2.20 BDL41.01.1 BDL 47 4706/12/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 14.8 BDL BDL 15 1512/05/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 15.1 BDL BDL 15 1509/09/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 8.9 BDL BDL 9 909/09/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 02.7BDL 1.8 BDL25.30.73 BDL 31 3109/14/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 5.2 BDL BDL 5 5MW-1106/30/042.1 3.01.4 BDL BDL BDL BDL BDL BDL 7 BDL BDL BDL BDL 4.1 BDL BDL 4 1108/15/055.0 3.69.7 BDL BDL BDL BDL BDL BDL 18 BDL BDL BDL BDL 2.2 BDL BDL 2 2108/24/064.92.5 5.2 BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL 4.4 BDL BDL 4 1706/05/086.81.5 5.0 BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL 0 1309/04/08BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 001/05/092.71.6 2.6 BDL BDL BDL BDL BDL BDL 7 BDL BDL BDL BDL 1.1 BDL BDL 1 803/05/091.3BDL 1.5 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 306/24/096.61.6 4.7 BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL 1 1409/02/094.42.3 BDL BDL BDL BDL BDL BDL BDL 7 BDL BDL BDL BDL BDL BDL BDL 0 712/08/093.72.4 4.5 BDL BDL BDL BDL BDL BDL 11 BDL BDL BDL BDL BDL BDL 2.9 3 1403/30/103.71.5 3.5 BDL BDL BDL BDL BDL BDL 9 BDL BDL BDL BDL BDL BDL BDL 0 909/22/103.11.4 3.9 BDL BDL BDL BDL BDL BDL 8 BDL BDL BDL BDL BDL BDL BDL 0 809/04/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 0.41 J BDL BDL 0 005/04/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/13/182.0BDL 0.51 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 312/19/181.3BDL 0.86 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 206/12/191.0BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 112/05/191.4BDL 1.1 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/09/201.4BDL 1.1 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/09/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/14/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0MW-1209/27/90BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 001/14/92BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/11/98BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 005/26/99BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/30/04BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 008/15/05BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 008/24/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/18/12BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/27/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/27/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/10/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/05/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/20/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/05/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/04/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/29/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/04/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/10/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/16/15BDL BDL BDL BDL BDL BDL BDL BDL BRL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/10/15 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/22/16 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/07/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 0BDL BDL BDL BDL BDL BDL BDL0009/06/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 0BDL BDL BDL BDL BDL BDL BDL0012/07/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0Continued on next page11.990009.00© 2022 EnviroTrac Page 2 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-12 (Continued)03/09/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/08/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/14/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/04/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/14/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0006/13/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/06/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0006/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/11/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/31/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/11/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/09/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/01/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/14/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0MW-12D09/27/90BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 001/14/92BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/11/98BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 005/26/99BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/30/04BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 008/15/05BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 008/24/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/04/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/13/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/09/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/14/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL00MW-13D06/30/04BDLBDL18.0BDL1.5BDL BDL BDL BDL 201.1BDL BDL BDL26.01.1 BDL 28 4808/15/05BDLBDL37.0BDL1.4BDL BDL BDL BDL 38 BDL BDL BDL BDL20.01.3 BDL 21 6008/24/06BDLBDL30.0BDL1.3BDL BDL BDL BDL 31 BDL BDL BDL BDL 19.0 BDL BDL 19 5006/05/08BDLBDL21.6BDL3.2BDL BDL BDL BDL 25 BDL BDL 3.0 3.6 12.5 1.7 BDL 21 4609/04/08BDLBDL15.2BDL3.1BDL BDL BDL BDL 18 BDL BDL BDL BDL 17.6 BDL BDL 18 3601/05/09BDLBDL17.4BDL4.2BDL BDL BDL BDL 22 BDL BDL BDL BDL 16.3 1.1 BDL 17 3903/05/09BDL BDL 14.6 BDL 3.4 BDL BDL BDL BDL 18 BDL BDL BDL BDL 13.4 BDL BDL 13 3106/24/09BDL BDL 19.2 9.44.1BDL BDL BDL BDL 33 BDL BDL BDL BDL20.2BDL BDL 20 5309/02/09BDLBDL16.7BDL5.3BDL BDL BDL BDL 22 BDL BDL BDL BDL23.1BDL BDL 23 4512/08/09BDLBDL12.2BDL3.8BDL BDL BDL BDL 16 BDL BDL BDL BDL24.4BDL BDL 24 4003/30/10BDL BDL 8.7 BDL3.0BDL BDL BDL BDL 12 BDL BDL BDL BDL 17.6 BDL BDL 18 3006/15/10BDL BDL 7.7 BDL3.1BDL BDL BDL BDL 11 BDL BDL BDL BDL26.1BDL BDL 26 3709/22/10BDLBDL10.7BDL4.2BDL BDL BDL BDL 15 BDL BDL BDL BDL69.9BDL BDL 70 8512/09/10BDLBDL11.6BDL4.9BDL BDL BDL BDL 17 BDL BDL BDL BDL70.9BDL BDL 71 8703/24/11BDL BDL 9.3 BDL4.5BDL BDL BDL BDL 14 BDL BDL BDL BDL76.9BDL BDL 77 9106/14/11BDL BDL 7.3 BDL4.5BDL BDL BDL BDL 12 BDL BDL BDL BDL82.1BDL BDL 82 9409/22/11BDL BDL 5.5 BDL3.9BDL BDL BDL BDL 9 BDL BDL BDL BDL82.7BDL BDL 83 9212/15/11BDL BDL 4.1 BDL2.6BDL BDL BDL BDL 7 BDL BDL BDL BDL60.3BDL BDL 60 6712/18/12BDL BDL BDL 6.67.9BDL BDL BDL BDL 15 0.6 BDL BDL BDL1901.1 BDL 194 20903/27/13BDL BDL 4.0 BDL BDL BDL BDL BDL BDL 4 0.34 J BDL BDL BDL97.5BDL BDL 99 10306/27/13BDL BDL 3.6 BDL4.2BDL BDL BDL BDL 8 0.27 J BDL BDL BDL90.3BDL BDL 93 10009/10/13BDL BDL 3.8 BDL3.6BDL BDL BDL BDL 7 0.3 J BDL BDL BDL81.90.78 BDL 84 92Continued on next page11.990009.00© 2022 EnviroTrac Page 3 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-13D (Continued)12/05/13BDL BDL 1.5 BDL1.5BDL BDL BDL BDL 3 BDL BDL BDL BDL50.50.37 J BDL 51 5403/20/14BDL BDL 2.0 BDL1.7BDL BDL BDL BDL 4 BDL BDL BDL BDL41.40.33 J BDL 42 4606/05/14BDL BDL 2.4 BDL2.5BDL BDL BDL BDL 5 BDL BDL BDL BDL65.60.46 J BDL 67 7209/04/14BDL BDL 1.7 BDL1.5BDL BDL BDL BDL 3 BDL BDL BDL BDL52.80.32 J BDL 54 5712/29/14BDL BDL 1.6 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL34.4BDL BDL 34 3603/04/15BDL BDL 1.4 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL26.6BDL BDL 27 2806/10/15BDL BDL 1.8 BDL1.1BDL BDL BDL BDL 3 BDL BDL BDL BDL37.4BDL BDL 38 4109/16/15BDL BDL 1.2 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL31.1BDL BDL 31 3212/10/15 BDL BDL 0.77 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL 19.3 BDL BDL 19 2003/22/16 BDL BDL 1.3 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL25.9BDL BDL 19 2006/07/16BDL BDL 1.3 BDL BDL BDLBDL BDL BDL 1BDL BDL BDL BDL24.6BDL BDL25 2609/06/16BDL BDL 0.88 BDL1.2BDLBDL BDL BDL 2BDL BDL BDL BDL22.5BDL BDL23 2512/07/16BDL BDL 0.70 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL23.1BDL BDL 23 2403/09/17BDL BDL 0.74 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL23.0BDL BDL 23 2406/08/17BDL BDL 1.3 BDL2.2BDL BDL BDLBDL 4BDL BDL BDL BDL43.4BDL BDL44 4809/14/17BDL BDL 0.86 BDL1.1BDL BDL BDLBDL 2BDL BDL BDL BDL31.8BDL BDL32 3412/04/17BDL BDL 1.0 BDL1.6BDL BDL BDLBDL 3BDL BDL BDL BDL56.10.56 BDL57 5903/14/18BDL BDL 0.67 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL37.3BDL BDL37 3806/13/18BDL BDL 0.61 BDL1.3BDL BDL BDLBDL 2BDL BDL BDL BDL46.70.52 BDL47 4909/06/18BDL BDL 0.56 BDL1.3BDL BDL BDLBDL 2BDL BDL BDL BDL51.8BDL BDL52 5412/19/18BDL BDL 0.55 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL53.7BDL BDL54 5503/12/19BDL BDL 0.65 BDL2.1BDL BDL BDLBDL 3BDL BDL BDL BDL71.90.59 BDL74 7606/12/19BDL BDL 1.65 BDL1.5BDL BDL BDLBDL 2BDL BDL BDL BDL58.0BDL BDL59 6009/11/19BDL BDL BDL BDL1.2BDL BDL BDLBDL 1BDL BDL BDL BDL35.5BDL BDL36 3712/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL41.0BDL BDL41 4103/31/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL57.3BDL BDL58 5809/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL45.0BDL BDL45 4503/11/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL40.2BDL BDL41 4109/09/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL28.4BDL BDL28 2803/01/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL20.7BDL BDL21 2109/14/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL 13.4 BDL BDL13 13MW-1409/26/901,300BDL BDL BDL BDL BDL BDL BDL BDL 1,300 BDL BDL BDL BDL BDL BDL BDL 0 1,30001/14/921,400BDL BDL BDL BDL BDL180BDL 100 1,680 BDL 60 BDL 100 BDL BDL BDL 160 1,84003/11/9880.0BDL BDL BDL BDL BDL BDL BDL BDL 80 BDL BDL BDL BDL BDL BDL BDL 0 8005/25/9967.0BDL BDL BDL BDL BDL BDL BDL BDL 67 BDL BDL BDL BDL BDL BDL BDL 0 6704/22/03110BDL BDL BDL BDL BDL BDL BDL BDL 1101.11.7 BDL 1.9 BDL BDL BDL 5 11506/30/0480.0BDL BDL BDL BDL BDL BDL BDL BDL 80 BDL BDL BDL BDL BDL BDL BDL 0 8008/16/0558.0BDL BDL BDL BDL BDL BDL BDL BDL 58 BDL BDL BDL BDL BDL BDL BDL 0 5808/24/0646.0BDL BDL BDL BDL BDL BDL BDL BDL 46 BDL BDL BDL BDL BDL BDL BDL 0 4606/05/0854.0BDL BDL BDL BDL BDL BDL BDL BDL 54 BDL BDL BDL BDL BDL BDL BDL 0 5409/04/0850.0BDL BDL BDL BDL BDL BDL BDL BDL 50 BDL BDL BDL BDL BDL BDL BDL 0 5001/05/0929.9BDL BDL BDL BDL BDL BDL BDL BDL 30 BDL BDL BDL BDL BDL BDL BDL 0 3003/05/0932.0BDL BDL BDL BDL BDL BDL BDL BDL 32 BDL BDL BDL BDL BDL BDL BDL 0 3206/24/0931.2BDL BDL BDL BDL BDL BDL BDL BDL 31 BDL BDL BDL BDL BDL BDL BDL 0 3109/02/0923.8BDL BDL BDL BDL BDL BDL BDL BDL 24 BDL BDL BDL BDL BDL BDL BDL 0 2412/08/0916.6BDL BDL BDL BDL BDL BDL BDL BDL 17 BDL BDL BDL BDL BDL BDL BDL 0 1703/30/1018.7BDL BDL BDL BDL BDL BDL BDL BDL 19 BDL BDL BDL BDL BDL BDL BDL 0 1906/15/1013.3BDL BDL BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL 0 1309/22/1015.7BDL BDL BDL BDL BDL BDL BDL BDL 16 BDL BDL BDL BDL BDL BDL BDL 0 1612/09/1014.5BDL BDL BDL BDL BDL BDL BDL BDL 15 BDL BDL BDL BDL BDL BDL BDL 0 1503/24/1114.8BDL BDL BDL BDL BDL BDL BDL BDL 15 BDL BDL BDL BDL BDL BDL BDL 0 1506/14/1111.8BDL BDL BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1209/22/1112.2BDL BDL BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1212/15/1112.8BDL BDL BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL 0 1312/05/130.9BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 106/10/151.3BDL 0.56 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 2Continued on next page11.990009.00© 2022 EnviroTrac Page 4 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-14 (Continued)03/22/162.6BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/14/172.0BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 203/14/181.7BDL 0.63 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 209/06/182.1BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 203/12/191.5BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 209/11/190.87BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 103/31/201.6BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 203/11/210.85BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 103/01/220.76BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 1MW-14D09/27/90110 3.0BDL 58.0 BDL 5.0 BDL BDL 20.0 19645.01.0 BDL 5.0 BDL BDL BDL 51 24701/14/92200BDL BDL BDL BDL BDL BDL BDL BDL 20065.03.0 BDL BDL BDL BDL BDL 68 26805/15/9256.0BDL BDL 2.1 BDL BDL BDL BDL BDL 584.7BDL BDL BDL BDL BDL BDL 5 6309/09/92210BDL BDL 23 BDL BDL BDL BDL 13.0 246220BDL BDL BDL BDL BDL BDL 220 46603/11/9835.4BDLBDL10.6BDLBDLBDLBDLBDL 465.6BDL BDL BDL BDL BDL BDL 6 5205/25/99201BDLBDL25.0BDLBDLBDLBDLBDL 22667.0BDL BDL BDL BDL BDL BDL 67 29310/10/0279.02.8 BDL 4.0 BDL 4.2 BDL BDL BDL 908.3BDL BDL BDL 11 29 BDL 48 13804/22/0340.0BDL BDL 1.2 BDL BDL BDL BDL BDL 41 BDL BDL BDL BDL BDL 1.8 BDL 2 4306/30/0429.0BDL 3.0 3.5 BDL 2.2 BDL BDL BDL 35 BDL BDL BDL BDL 3.3 BDL BDL 3 3808/16/0555.01.8 15.0 3.3 BDL BDL BDL BDL BDL 755.4BDL BDL BDL 3.2 7.3 BDL 16 9108/24/0647.02.0 17.0 1.4 BDL BDL BDL BDL BDL 671.3BDL BDL BDL 2.4 6.4 BDL 10 7803/27/0910.6BDL 1.0 BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1206/24/0911.7BDL BDL BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1209/02/0927.11.4 8.8 BDL BDL BDL BDL BDL BDL 371.8BDL BDL BDL 1.3 2.9 BDL 6 4312/08/0912.5BDL 2.0 BDL BDL BDL BDL BDL BDL 15 BDL BDL BDL BDL BDL BDL BDL 0 1503/30/109.8BDL BDL BDL BDL BDL BDL BDL BDL 10 BDL BDL BDL BDL BDL BDL BDL 0 1006/15/1011.7BDL 2.2 BDL BDL BDL BDL BDL BDL 14 BDL BDL BDL BDL BDL 1.0 BDL 1 1509/22/10104 4.736.8 BDL1.0BDL BDL BDL BDL 1476.5BDL BDL BDL 2.8 5.9 BDL 15 16212/09/10107 3.728.2BDLBDLBDLBDLBDLBDL 1395.4BDL BDL BDL 1.7 3.8 BDL 12 15103/24/1159.02.2 17.7BDLBDLBDLBDLBDLBDL 791.5BDL BDL BDL 1.0 2.2 BDL 13 9206/14/11109 4.232.8 BDL1.0BDL BDL BDL BDL 1472.5BDL BDL BDL 2.0 5.1 BDL 11 15809/22/11187 8.269.0 BDL4.2BDL BDL BDL BDL 2688.3BDL 3.9 BDL BDL 8.8 BDL 24 29212/15/1113.6BDL 3.0 BDL BDL BDL BDL BDL BDL 17 BDL BDL BDL BDL BDL BDL BDL 0 1703/27/1237.41.5 9.2 BDL1.7BDL BDL BDL BDL 50 BDL BDL BDL BDL 1.0 1.6 BDL 3 5206/21/1227.71.1 7.2 BDL BDL BDL BDL BDL BDL 36 BDL BDL BDL BDL 0.61 1.3 BDL 2 3803/20/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/07/167.1BDL 0.77 BDL BDL BDLBDL BDL BDL 8BDL BDL BDL BDL BDL BDL BDL0809/06/1612.50.62 3.3 BDL BDL BDLBDL BDL BDL 16BDL BDL BDL BDL BDL 0.64 BDL11712/07/1642.02.1 12.9BDLBDLBDLBDLBDLBDL 572.3BDL BDL BDL BDL 1.4 BDL 4 6103/09/1718.80.91 5.3 BDL BDL BDL BDL BDL BDL 25 0.71 BDL BDL BDL BDL 0.59 BDL 1 2606/08/175.1BDL 1.5 BDL BDL BDL BDL BDLBDL 7BDL BDL BDL BDL BDL BDL BDL0709/14/173.7BDL 1.1 BDL BDL BDL BDL BDLBDL 5BDL BDL BDL BDL BDL BDL BDL0512/04/1726.01.4 8.1 BDL BDL BDL BDL BDLBDL 360.75 BDL BDL BDL BDL 0.85 BDL23706/13/180.97BDL BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0112/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0006/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/05/190.7BDL BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0109/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/09/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/14/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL00MW-1509/27/90BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 001/14/92BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/11/98BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 005/25/994.9 3.0BDL BDL BDL BDL BDL BDL BDL 8 BDL BDL BDL BDL BDL BDL BDL 0 810/10/0213.0 7.8BDL BDL BDL 1.4 BDL BDL BDL 22 BDL BDL BDL BDL29.0BDL BDL 29 51Continued on next page11.990009.00© 2022 EnviroTrac Page 5 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-15 (Continued)04/22/0311.0 5.0BDL BDL BDL 1.4 BDL BDL BDL 17 BDL BDL BDL BDL 17.0 BDL BDL 17 3406/30/047.5 3.9 86.0BDL BDL BDL BDL BDL BDL 97 BDL BDL BDL BDL 18.0 BDL BDL 18 11508/16/056.82.3 47.0 BDL BDL BDL BDL BDL BDL 56 BDL BDL BDL BDL 15.0 BDL BDL 15 7108/24/065.5 548.0 BDL BDL BDL BDL BDL BDL 59 BDL BDL BDL BDL 8.0 BDL BDL 8 6712/18/125.9 5.326.5 BDL38.80.47 J BDL BDL BDL 77 BDL BDL BDL BDL 2.6 BDL BDL 3 8003/27/131.62.1 13.5 BDL BDL BDL BDL 0.26 J BDL 17 BDL BDL BDL BDL 1.7 BDL BDL 2 1906/27/132.82.8 16.1 BDL21.6BDL BDL BDL BDL 43 BDL BDL BDL BDL 1.8 BDL BDL 2 4509/10/130.53 0.45 J 3.1 BDL22.0BDL BDL BDL BDL 26 BDL BDL BDL BDL 1.4 BDL BDL 1 2703/20/140.65 1.2 10.3 BDL9.7BDL BDL BDL BDL 22 BDL BDL BDL BDL 1.6 BDL BDL 2 2403/04/150.66 BDL 0.87 BDL18.3BDL BDL BDL BDL 20 BDL BDL BDL BDL 2.3 BDL BDL 4 2403/22/162.20.71 3.5 BDL21.5BDL BDL BDL BDL 28 BDL BDL BDL BDL 2.7 BDL BDL 3 3109/14/170.980.92 9.4 BDL2.3BDL BDL BDL BDL 14 BDL BDL BDL BDL 1.7 BDL BDL 2 1503/14/180.54 0.53 5.8 BDL BDL BDL BDL BDL BDL 7 BDL BDL BDL BDL 1.8 BDL BDL 2 909/06/18BDL BDL 4.0 BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL 2.1 BDL BDL 2 603/12/19BDL BDL 1.5 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL 1.7 BDL BDL 2 309/11/19BDL BDL 1.1 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL 1.7 BDL BDL 2 303/31/20BDL BDL 1.1 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL 2.5 BDL BDL 3 403/11/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 1.8 BDL BDL 2 203/01/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 2.2 BDL BDL 2 2MW-1609/26/90BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 001/14/92BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/11/981.9BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 206/02/992.4BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 210/10/0222.0 3.8BDL 1.8 BDL BDL BDL BDL BDL 28 BDL BDL BDL BDL BDL BDL BDL 0 2804/22/0346.0 8.6BDL 3.6 BDL BDL BDL BDL BDL 58 BDL BDL BDL BDL BDL BDL BDL 0 5806/30/0431.0 7.624.0 2.7 BDL 1.0 BDL BDL BDL 66 BDL BDL BDL BDL BDL BDL BDL 0 6608/15/0530.0 4.4BDL 1.8 BDL BDL BDL BDL BDL 36 BDL BDL BDL BDL BDL 17 BDL 17 5308/25/0636.0 7.431.0 2.9 BDL BDL BDL BDL BDL 77 BDL BDL BDL BDL BDL BDL BDL 0 7706/15/104.1BDL 3.7 BDL BDL BDL BDL BDL BDL 8 BDL 1.8 BDL BDL BDL BDL BDL 2 1012/09/1016.72.1 8.2 1.31.7BDL BDL BDL BDL 30 BDL BDL BDL BDL BDL BDL BDL 0 3003/24/118.91.4 6.3 BDL5.5BDL BDL BDL BDL 22 BDL BDL BDL BDL BDL BDL BDL 0 2206/14/1122.1 3.110.7 1.82.8BDL BDL BDL BDL 41 BDL BDL BDL BDL BDL BDL BDL 0 4109/22/1135.5 5.022.7 3.02.4BDL BDL BDL BDL 69 BDL BDL BDL BDL BDL BDL BDL 0 6912/15/114.9BDL 3.2 BDL6.4BDL BDL BDL BDL 15 BDL BDL BDL BDL BDL BDL BDL 0 1503/27/1213.52.0 6.0 0.963.2BDL BDL BDL BDL 25 BDL 0.89 BDL BDL BDL BDL BDL 1 2606/21/129.61.6 4.6 0.824.7BDL BDL BDL BDL 21 BDL 2.4 BDL BDL BDL BDL BDL 2 2409/21/1229.8 4.311.1 1.92.2BDL BDL BDL BDL 49 BDL 1.7 BDL BDL BDL BDL BDL 2 5103/27/137.81.2 3.5 0.582.2BDL BDL BDL BDL 15 BDL 0.96 BDL BDL BDL BDL BDL 1 1606/27/135.60.83 2.7 0.645.7BDL BDL BDL BDL 15 BDL 0.44 J BDL BDL BDL BDL BDL 0 1609/10/1310.31.6 5.1 0.923.10.26 J BDL BDL BDL 21 BDL BDL BDL BDL BDL BDL BDL 0 2106/05/147.01.1 3.6 0.772.0BDL BDL BDL BDL 15 BDL 1.1 BDL BDL BDL BDL BDL 1 1603/04/1510.31.8 6.4 1.13.3BDL BDL BDL BDL 23 BDL BDL BDL BDL BDL BDL BDL 0 2312/10/1512.92.0 7.2 1.31.7BDL BDL BDL BDL 25 BDL BDL BDL BDL BDL BDL BDL 0 2509/14/175.91.1 2.8 0.65 BDL BDL BDL BDL BDL 11 BDL BDL BDL BDL BDL BDL BDL 0 1103/14/1810.51.7 5.8 1.2 BDL BDL BDL BDL BDL 19 BDL BDL BDL BDL BDL BDL BDL 0 1909/06/185.60.9 2.8 0.6 BDL BDL BDL BDL BDL 10 BDL BDL BDL BDL BDL BDL BDL 0 1003/12/192.1BDL 1.3 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/11/192.1BDL 0.8 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 303/31/200.96BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 103/11/211.0BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 103/01/221.1BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 1MW-2409/27/90630 28.0BDL 60.0 BDL BDL BDL BDL BDL 7181,50080.0 BDL 80.0 BDL BDL BDL 1,660 2,37801/14/923,800 110BDL 200 BDL BDL56.0BDL 80.0 4,2461,800260 BDL 340 BDL BDL BDL 2,400 6,64605/15/921,400 25.0BDL 4.9 BDL BDL BDL BDL BDL 1,4301,800180 BDL BDL BDL BDL BDL 1,980 3,410Continued on next page11.990009.00© 2022 EnviroTrac Page 6 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-24 (Continued)09/09/922,700BDL BDL BDL BDL BDL BDL BDL 100 2,8002,500150 BDL 150 BDL BDL BDL 2,800 5,60003/11/981,230BDL BDL BDL BDL BDL BDL BDL BDL 1,2301,920BDL BDL BDL BDL BDL BDL 1,920 3,15005/25/99637BDL BDL BDL BDL BDL BDL BDL BDL 6371,510BDL BDL BDL BDL BDL BDL 1,510 2,14710/10/022,000 68.0BDL 31.0 BDL 11.02.5BDL 4.9 2,1171,70016.0 1.4 27.0180 530BDL 2,454 4,57204/22/03640 24.0BDL 17.0 BDL 6.4 BDL BDL 1.8 6895006.4 BDL 6.381.0 180BDL 774 1,46306/30/04870BDL370BDL BDL BDL BDL BDL BDL 1,240280BDL BDL BDL74.0 200BDL 554 1,79408/16/051,300 62.0 570BDL BDL BDL BDL BDL BDL 1,932420BDL BDL BDL69.0 170BDL 659 2,59108/24/062,200 84.0 77015.0 BDL6.4 1.21.2 5.5 3,0836604.8 BDL 10.478.0 1605.6 919 4,00206/05/081,840BDL545BDL BDL BDL BDL BDL BDL 2,385210BDL BDL BDL55.1 140BDL 405 2,79009/04/081,430 51.7 349BDL BDL BDL BDL BDL BDL 1,831253BDL BDL BDL BDL 60.3 BDL 313 2,14401/05/091,610 78.4 517BDL BDL BDL BDL BDL BDL 2,205280BDL BDL BDL70.9 116BDL 467 2,67203/05/091,250BDL466BDL BDL BDL BDL BDL BDL 1,716117BDL BDL BDL BDL BDL BDL 117 1,83306/24/09484BDL119BDL BDL BDL BDL BDL BDL 603 BDL BDL BDL BDL BDL BDL BDL 0 60309/02/09946 127 7609.7121 6.2BDL BDL BDL 1,970537BDL BDL 13.777.5 165 15.5841 2,81112/08/091,650 89.2 5336.324.7BDL BDL BDL BDL 2,303207BDL BDL 5.841.067.3 BDL 352 2,65503/30/10163 10.147.2 BDL36.21.0 BDL BDL BDL 25817.2BDL BDL BDL12.420.1 BDL 50 30706/15/101,000 42.6 267BDL77.5BDL BDL BDL BDL 1,387168BDL BDL BDL29.268.3 BDL 280 1,66709/22/101,080 71.4 362BDL48.0BDL BDL BDL BDL 1,561110BDL BDL BDL24.042.827.4218 1,77912/09/101,140 53.0 379BDL64.5BDL BDL BDL BDL 1,637126BDL BDL BDL33.052.438.1264 1,90103/24/11947 68.0 358BDL108BDL BDL BDL BDL 1,481130BDL BDL BDL29.539.0 BDL 199 1,68006/14/111,130 57.9 368BDL15.2BDL BDL BDL BDL 1,57180.8BDL BDL BDL24.647.611.0164 1,73509/22/11834 41.4 337BDL15.5BDL BDL BDL BDL 1,22887.4BDL BDL BDL27.037.5 BDL 163 1,39112/15/11807 70.6 368BDL62.3BDL BDL BDL BDL 1,30889.0BDL BDL BDL24.631.2 BDL 156 1,46403/27/12537 27.2 134BDL67.2BDL BDL BDL BDL 76534.92.5 BDL BDL 19.8 29.112.0111 87606/21/12896 52.9 249BDL60.82.5 BDL BDL BDL 1,26167.5BDL BDL BDL22.746.2 BDL 157 1,41809/21/12797 50.8 228BDL35.2BDL BDL BDL BDL 1,11156.52.6 BDL BDL 16.2 27.5 BDL 109 1,22006/05/14415 16.8 95.91.384.41.2 J BDL BDL BDL 61521.42.4 BDL 3.3 J 15.6 27.3 BDL 75 69012/29/1467162.3 280BDL99.9BDL BDL BDL BDL 1,113109BDL BDL 2.8 18.9 36.7 BDL 173 1,28606/10/1566127.4 183BDL133BDL BDL BDL BDL 1,00421.8BDL BDL BDL 14.1 29.6 BDL 72 1,07709/16/1582246.1 240BDL221BDL BDL BDL BDL 1,32960.9BDL BDL BDL 17.8 36.0 BDL 124 1,45412/10/15568 38.1 237BDL463BDL BDL BDL BDL 1,30646.0BDL BDL BDL 18.2 43.3 BDL 117 1,42306/07/1695.1 7.957.7 BDL1481.3BDL BDL BDL 31021.00.64 BDL 0.87 11.0 21.9 BDL58 36809/06/16141 13.757.2 BDL1370.75BDL BDL BDL 35051.11.1 BDL 1.7 7.3 15.3 BDL79 42912/07/16267 40.0 2241.3182BDL BDL BDL BDL 7141141.3 BDL 3.2 11.2 25.1 BDL 161 87603/09/17399 34.4 197BDL133BDL BDL BDL BDL 76339.2BDL BDL 2.3 11.4 21.6 BDL 81 84506/08/17322 28.1 2611.185.0BDL BDL BDLBDL 69721.1BDL BDL 1.9 9.4 17.1 BDL56 75312/04/17370 46.8 3051.490.3BDL BDL BDLBDL 81445.0BDL BDL 2.1 10.9 23.9 BDL97 91003/14/18287 35 2661.268.0BDL BDL BDLBDL 65716.01.1 BDL 1.5 8.5 17.7 BDL58 71509/06/18335 31.7 2041.230.5BDL BDL BDLBDL 60233.2BDL BDL 1.7 5.4 13.4 BDL58 66003/12/1959.6 6.636.5 0.5118.90.56 BDL BDLBDL 12310.3BDL BDL BDL 4.4 8.6 BDL24 14709/11/19181 18.1 91.1BDL8.0BDL BDL BDLBDL 29825.1BDL BDL 1.1 BDL 5.3 BDL33 33103/31/20150 12.8 105BDL11.1BDL BDL BDLBDL 2799.4BDL BDL BDL BDL 5.7 BDL16 29503/11/2136.9 3.319.3BDLBDLBDLBDLBDLBDL 606.3BDL BDL BDL 2.7 5.5 BDL15 7403/01/22372 49.3 574BDL50.5BDL BDL BDLBDL 1,04622.0BDL BDL BDL 3.3 7.6 BDL42 1,088MW-2503/11/988.9 3.5BDL BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1205/26/9910.0 3.6BDL BDL BDL BDL BDL BDL BDL 14 BDL BDL BDL BDL BDL BDL BDL 0 1406/30/048.1 3.59.9 BDL BDL BDL BDL BDL BDL 22 BDL BDL BDL BDL BDL 4.4 BDL 4 2608/16/0517.0 3.931.0 BDL BDL BDL BDL BDL BDL 52 BDL BDL BDL BDL 3.6 BDL BDL 4 5608/25/0620.0 4.851.0 BDL BDL BDL BDL BDL BDL 76 BDL BDL BDL BDL 1.8 4.3 BDL 6 8206/05/0811.7 3.223.5 BDL BDL BDL BDL BDL BDL 38 BDL BDL 1.3 BDL 2.2 4.2 BDL 8 4609/04/0818.7 5.233.2 BDL BDL BDL BDL BDL BDL 57 BDL BDL BDL BDL 3.0 4.8 BDL 8 6501/05/0922.9 6.546.6 1.1 BDL 1.1 BDL BDL BDL 78 BDL BDL BDL BDL 4.8 6.2 BDL 11 8903/05/0924.9 8.351.0 1.1 BDL BDL BDL BDL BDL 85 BDL BDL BDL BDL 4.8 BDL BDL 5 9006/24/0930.8 7.454.7 2.4 BDL BDL BDL BDL BDL 95 BDL BDL BDL BDL 5.9 6.9 BDL 13 10809/02/0924.8 7.960.1 1.6 BDL 1.1 BDL BDL BDL 96 BDL BDL BDL BDL 8.9 9.1 BDL 18 11412/08/0926.5 8.854 1.8 BDL 1.0 BDL BDL BDL 921.3BDL BDL BDL 15.0 13.1 BDL 29 122Continued on next page11.990009.00© 2022 EnviroTrac Page 7 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-25 (Continued)03/30/1019.4 6.844.1 1.3 BDL BDL BDL BDL BDL 721.3BDL BDL BDL 12.3 12.2 BDL 26 9706/15/1017.7 6.136.9 1.4 BDL BDL BDL BDL BDL 621.4BDL BDL BDL 15.9 14.7 BDL 32 9409/22/1017.5 5.741.2 1.3 BDL BDL BDL BDL BDL 661.6BDL BDL BDL27.418.3 BDL 47 11312/09/1022.6 7.049.0 1.5 BDL 1.1 BDL BDL BDL 811.8BDL BDL BDL28.620.4 BDL 51 13203/24/1126.6 8.462.9 1.9 BDL 1.3 BDL BDL BDL 1011.7BDL BDL BDL24.017.6 BDL 43 14406/14/1135.5 11.4 74.02.8 BDL 1.6 BDL BDL BDL 1251.7BDL BDL BDL25.418.5 BDL 46 17109/22/1135.1 9.7 87.03.1 BDL 1.7 BDL BDL BDL 1371.5BDL BDL BDL27.318.9 BDL 48 18412/15/111.4BDL 5.5 BDL BDL BDL BDL BDL BDL 7 BDL BDL BDL BDL 4.8 1.3 BDL 6 1312/05/132.40.57 4.6 BDL2.8BDL BDL BDL BDL 10 BDL BDL BDL BDL 3.4 1.5 BDL 5 1509/04/145.20.28 J 2.4 BDL9.4BDL BDL BDL BDL 17 0.27 J BDL BDL BDL 4.8 2.5 BDL 8 2506/10/1511.40.72 6.3 BDL20.10.84 BDL BDL BDL 39 0.68 BDL BDL BDL 14.4 8.9 BDL 24 6309/16/1523.91.4 11.4 BDL40.71.5 BDL BDL BDL 791.4BDL BDL BDL20.512.1 BDL 35 11312/10/1517.30.70 5.7 BDL42.71.2 BDL BDL BDL 681.0BDL BDL BDL 16.7 11.7 BDL 29 9706/13/18 BDL BDL 2.9 BDL 1.1 BDL BDL BDL BDL 4 BDL BDL BDL BDL 3.1 1.0 BDL 4 803/12/19 BDL BDL 3.0 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL 7.1 3.3 BDL 10 1309/11/19 BDL5.06.9 BDL33.41.2 BDL BDL BDL 47 0.99 BDL BDL BDL 18.9 11.9 BDL 32 7803/31/20 BDL5.28.7 BDL40.11.3 BDL BDL BDL 551.2BDL BDL BDL20.713.2 BDL 35 9003/11/21 BDL3.67.6 BDL24.50.81 BDL BDL BDL 371.1BDL BDL BDL20.211.1 BDL 32 6903/01/22 BDL 2.8 7.1 BDL20.60.75 BDL BDL BDL 311.6BDL BDL BDL29.116.5 BDL 47 79MW-2710/10/02BDL BDL BDL BDL BDL BDL BDL BDL BDL 02.32.0 47.0 18.0 2.3 BDL BDL 72 7207/01/04BDL BDL BDL BDL BDL BDL BDL BDL BDL 05.42.7 34.0 7.9 11.0 BDL17.078 7808/16/05BDL BDL BDL BDL BDL BDL BDL BDL BDL 012.04.1 180 34.0 3.5 BDL30.0264 26411/01/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 06.22.4 38.0 3.1 BDL BDL1666 6603/22/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/04/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 011.11.6 0.51 BDL 13.1 1.7 BDL 54 5406/13/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 06.61.1 0.59 BDL 16.7 2.1 BDL 51 5112/19/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 030.02.8 7.4 3.038.04.0 3.1 143 14312/05/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 036.84.2 7.4 3.473.5BDL 2.6 222 22209/09/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 037.95.9 16.5 5.567.6BDL 4.8 269 26909/09/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 031.55.2 10.7 4.466.045.9 2.9 223 22309/14/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 026.34.7 8.5 4.252.7BDL BDL 213 213MW-2810/10/02BDL BDL BDL BDL BDL BDL BDL BDL BDL 010.02.2 45 22.5 BDL 2.3 BDL 82 8207/01/04BDL BDL BDL BDL BDL BDL BDL BDL BDL 095.051.01,500 1,065BDL BDL4803,191 3,19108/15/05BDL BDL BDL BDL BDL BDL BDL BDL BDL 021078.02,300 750BDL BDL7404,078 4,07808/25/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 017056.02,500 1,200BDL BDL8004,726 4,72612/14/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 0100BDL2,500 530BDL BDL9404,070 4,07003/22/16BDL BDL BDL BDL 5.3 BDL BDL BDL BDL 57120 253 251.4 BDL BDL6712,320 2,32505/04/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 025.48.1 70.9 79.7 BDL BDL5371,189 1,18903/14/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 0.7 BDL BDL BDL BDL 1 109/06/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 4.3 2.9 BDL BDL BDL 16 1603/12/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 1.9 1.2 BDL BDL BDL 6 609/11/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 01.8BDL 4.4 2.8 0.82 BDL 2.9 26 2603/31/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 01.2BDL 26.0 26.2 BDL BDL17.3188 18803/11/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 3.5 2.6 BDL BDL 2.3 17 1703/01/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 1.3 BDL BDL BDL 2.5 8 8MW-3007/01/04BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL2,200BDL BDL 2,200 2,20008/16/05BDL BDL20043.077.0BDL BDL BDL BDL 32074.0BDL 58.0 BDL510BDL BDL 642 96208/25/06BDL BDL 23.0 2.516.0BDL BDL BDL BDL 4223.0BDL 2.6 2.01,50013.0 BDL 1,541 1,58212/21/12BDL 0.72 19.8 1.248.82.5 BDL BDL BDL 7335.55.8 23.8 3.21,260BDL 3.8 1,385 1,45903/20/140.34 J5.27.5 0.33 J6.1BDL BDL0.45 JBDL 204.80.27 J 0.74 BDL11,10014.8 BDL 11,127 11,14706/10/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL19,800BDL BDL 19,800 19,80009/16/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL20,000BDL BDL 20,000 20,000Continued on next page11.990009.00© 2022 EnviroTrac Page 8 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-30 (Continued)03/22/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL18,500BDL BDL 18,500 18,50009/14/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL21,400BDL BDL 21,400 21,40003/14/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 032BDL BDL BDL3,960BDL BDL 4,009 4,00909/06/18BDL BDL BDL BDL30.9BDL BDL BDL BDL 3124.6BDL BDL BDL2,970BDL BDL 3,013 3,04303/12/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL11,600BDL BDL 11,600 11,60009/11/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL4,110BDL BDL 4,110 4,11003/31/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 017.0BDL BDL BDL2,150BDL BDL 2,167 2,16703/11/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 08.8BDL BDL BDL873BDL BDL 897 89703/01/22BDL BDL BDL BDL10.8BDL BDL BDL BDL 118.1BDL BDL BDL725BDL BDL 750 761MW-3110/10/02BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL 3202,600 7,900BDL BDL BDL 10,820 10,82004/22/03BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL 3101,800 4,600BDL BDL BDL 6,710 6,71007/01/04BDLBDL53.0BDLBDLBDLBDLBDLBDL 5318.084.0 5901,360BDL BDL4002,452 2,50508/15/05BDL BDL 48.0 BDL BDL BDL BDL BDL BDL 48 BDL 67.01,100 1,490BDL BDL7503,407 3,45511/01/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL1,700390 BDL BDL7202,810 2,81003/22/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/14/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/13/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 1 112/19/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/12/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 2.1 5.6 BDL BDL 8.1 79 7912/05/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 1 109/09/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/09/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0MW-3207/01/04BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL290BDL BDL 290 29008/15/05BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL180BDL BDL 180 18008/25/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 01,400280 190600 15,00032.016017,662 17,66211/01/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 01,400320 340900 20,000BDL BDL 22,960 22,96012/14/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 01,500 3,700 1,700 8,000 16,000BDL1,10032,000 32,00009/16/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 025.7BDL 366 179962BDL3545,354 5,35406/07/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 0BDL BDL BDL 19.51,650BDL BDL2,428 2,42809/06/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 0BDL BDL 7.8 13.61,410BDL38.42,536 2,53612/07/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 10.6 17.31,670BDL74.93,604 3,60403/09/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL753BDL21.31,828 1,82806/08/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL 2.9 BDL22.01,129 1,12906/13/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL 7.0 BDL BDL497 49712/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL 3.1 BDL BDL3312/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL 1.1 BDL BDL64 6409/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL 0.64 BDL 1.67709/09/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL 0.911 11MW-3310/10/02BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/30/04BDL BDL 1.6 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 208/15/05BDL BDL 5.6 BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL 0 608/25/06BDL BDL 5.7 BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL 0 612/21/12BDL BDL 2.2 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL 0.57 BDL BDL 1 303/27/13BDL BDL 1.9 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL 0.27 J BDL BDL 0 206/27/13BDL BDL 3.2 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/10/13BDL BDL 2.4 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 212/05/13BDL BDL 2.3 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL 0.62 BDL BDL 1 303/20/14BDL BDL 1.6 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL 0.57 BDL BDL 1 206/05/14BDL BDL 3.4 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/04/14BDL BDL 2.7 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 312/29/14BDL BDL 1.6 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL 1.0 BDL BDL 1 303/04/15BDL BDL 0.93 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL 1.1 BDL BDL 1 2Continued on next page11.990009.00© 2022 EnviroTrac Page 9 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-33 (Continued)06/10/15BDL BDL 3.0 BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/16/15BDL BDL 2.3 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 212/10/15 BDL BDL 0.95 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 103/22/16 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/07/16 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/06/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 0BDL BDL BDL BDL BDL BDL BDL0012/07/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/09/17BDL BDL 0.71 BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 106/08/17BDL BDL 1.3 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0109/14/17BDL BDL 1.4 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0112/04/17BDL BDL 0.77 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0103/14/18BDL BDL 0.82 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0106/13/18BDL BDL 1.5 BDL BDL BDL BDL BDLBDL 2BDL BDL BDL BDL BDL BDL BDL0209/06/18BDL BDL 0.82 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0112/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/12/19BDL BDL 0.68 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0106/12/19BDL BDL 1.1 BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/11/19BDL BDL 0.56 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0112/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/31/20BDL BDL 1.1 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL1209/09/20BDL BDL 0.73 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0103/11/21BDL BDL 0.51 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0109/09/21BDL BDL 0.87 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0103/01/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL 10.5 BDL BDL11 1109/14/22BDL BDL 0.6 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL 0.77 BDL BDL11MW-3404/22/03BDL100BDL 15.0 BDL7.2BDL BDL BDL 122 BDL BDL BDL BDL BDL BDL BDL 0 12207/01/04BDL13063.0 6.3 BDL7.4BDL BDL BDL 207 BDL BDL BDL BDL BDL BDL BDL 0 20708/16/05BDL90.037.0 BDL BDL BDL BDL BDL BDL 127 BDL BDL BDL BDL BDL BDL BDL 0 12708/25/06BDL59.024.0 4.8 BDL 2.3 BDL BDL BDL 90 BDL BDL BDL BDL BDL BDL BDL 0 9012/18/12BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/27/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/10/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/20/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL 0.74 BDL BDL BDL BDL BDL 0 106/05/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/04/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL 0.59 BDL BDL BDL BDL BDL 1 112/29/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/04/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/10/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/10/15 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/22/16 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/07/16 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/06/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 0BDL BDL BDL BDL BDL BDL BDL0012/07/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/09/17DRY DRY DRY DRY DRY DRY DRY DRY DRY 0 DRY DRY DRY DRY DRY DRY DRY 0 006/08/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/14/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/04/17DRY DRY DRY DRY DRY DRY DRY DRY DRY 0 DRY DRY DRY DRY DRY DRY DRY 0 003/14/18BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 006/13/18BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 009/06/18BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 012/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 003/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 006/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 009/11/19BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 012/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 003/31/20BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 0Continued on next page11.990009.00© 2022 EnviroTrac Page 10 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-34 (Continued)09/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 003/11/21BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 003/01/22BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0 0MW-4011/01/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 0250230 280552BDL BDL1301,442 1,44203/30/10BDL BDL 5.1 BDL BDL BDL BDL BDL BDL 5191350 385649BDL 0.87145985 99012/18/12BDL BDL 0.98 BDL BDL BDL BDL BDL BDL 1160185 235 421.2 BDL 1.11101,395 1,39603/27/130.61 J BDL 3.0 BDL BDL BDL BDL BDL BDL 4305460 4961,058BDL BDL1933,033 3,03606/27/13BDL BDL BDL BDL BDL BDL BDL 0.38 J BDL 033.2106 1611,655BDL BDL67.63,064 3,06409/10/13BDL BDL BDL BDL BDL BDL BDL 3.6 J BDL 4100285 303919BDL BDL1372,464 2,46812/05/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0257505 4721,3921.3 J BDL2033,746 3,74603/20/141.2 JBDL 2.4 J BDL BDL BDL BDL BDL BDL 4159420 304909BDL BDL1472,663 2,66706/05/14BDL BDL 1.8 J BDL BDL BDL BDL BDL BDL 2366 1,380 679 2,143BDL BDL2816,097 6,09909/04/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 040.0 81.368.9 214 0.45 J BDL26.9548 54812/29/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0101293 300931BDL BDL1872,956 2,95603/04/15BDL BDL 2.3 BDL BDL BDL BDL BDL BDL 25.143.9 44.6 153.2 BDL BDL26.8586 58806/10/15BDL BDL 2.2 BDL BDL BDL BDL BDL BDL 229.198 142 410 BDL BDL66.01,179 1,18109/16/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 015.827.2 57.4 211.9 BDL BDL24.6493 49312/10/15 BDL BDL 4.6 BDL BDL BDL BDL BDL BDL 51.42.2 5.9 9.5 BDL BDL 3.3 131 13603/22/16 BDL BDL 0.76 BDL BDL BDL BDL BDL BDL 1 0.64 2.0 14.3 40.0 BDL BDL7.7141 14206/07/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 07.713.9 13.5 39.0 BDL BDL 4.8116 11609/06/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 00.51 BDL BDL BDL BDL BDL BDL3312/07/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 01.0BDL 0.86 BDL BDL BDL BDL 23 2303/09/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/08/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 01.7BDL BDL BDL BDL BDL BDL2209/14/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/04/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/14/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0006/13/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL 2.2 5.3 BDL BDL BDL13 1309/06/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL 0.59 6.0 10.4 BDL BDL 2.538 3812/19/18BDL BDL 1.2 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0103/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0006/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/11/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/31/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/11/21BDL BDL BDL BDL BDL BDL BDL BDLBDL0 BDL BDL BDL BDL BDL BDL BDL 0009/09/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/01/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/14/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL00MW-4104/22/03BDL BDL BDL BDL BDL BDL BDL BDL BDL 07,200 6,600 2,400 10,800BDL BDL BDL 27,000 27,00007/08/04BDL BDL BDL BDL BDL BDL BDL BDL BDL 07,000 6,600 2,600 13,300BDL520 77030,790 30,79008/16/05BDL BDL BDL BDL BDL BDL BDL BDL BDL 05,400 4,900 2,500 9,700BDL230 78023,510 23,51008/24/06BDL BDL BDL BDL BDL BDL BDL BDL BDL 03,100 3,000 1,000 2,900BDL 6.416.010,022 10,02203/30/10BDL BDL BDL BDL BDL BDL BDL BDL BDL 03,110 3,790 2,750 10,560BDL 23.374720,980 20,98003/22/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 036.442.7 105936BDL BDL 80.0 1,898 1,89806/07/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 048.8104 2631,847BDL BDL2083,705 3,70509/06/16BDL BDL BDL BDL BDL BDLBDL BDL BDL 0268385619 3,383BDL BDL3516,511 6,51112/07/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0117151 2521,789BDL 8.72653,555 3,55503/09/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 041.782.9 1241,608BDL BDL1713,027 3,02706/08/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 011.528.3 61.6960BDL BDL96.11,620 1,62012/04/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0193160 2781,640BDL BDL1723,155 3,15506/13/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 047.799.8 2121,258BDL BDL1762,892 2,89212/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 012.059.8 154902BDL BDL89.52,015 2,015Continued on next page11.990009.00© 2022 EnviroTrac Page 11 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-41 (Continued)06/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 04.420.1 67.2942BDL BDL70.42,004 2,00412/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 05.210.4 9.8 43 BDL BDL 3.1108 10809/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 014.635.2 41.2 200 BDL BDL26.5557 55709/09/21BDL 1.1 3.6 BDL BDL 2.4 BDL BDLBDL 71.312.1 33.1 168.7 BDL 3.223442 44909/14/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0136.079.5 65.1 272 BDL BDL162997 997MW-4201/10/0636.0BDL 7.5 6.1 BDL 1.6 BDL BDL BDL 51 BDL BDL BDL BDL BDL BDL 3.2 3 5408/25/0627.0BDL 4.7 3.5 BDL 1.5 BDL BDL BDL 37 BDL BDL BDL BDL BDL BDL BDL 0 3706/05/085.3BDL BDL BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 509/04/085.7BDL BDL BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL 0 601/05/095.3BDL BDL BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 503/05/092.7BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 306/24/093.1BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/02/093.4BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 312/08/094.5BDL BDL BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 503/30/103.1BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 306/15/102.5BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/22/102.9BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 312/09/104.4BDL BDL BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL BDL BDL BDL 0 403/24/114.0BDL BDL BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL BDL BDL BDL 0 406/14/113.0BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 309/22/112.8BDL BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 312/15/115.3BDL BDL BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 512/05/130.4 J 0.25 J 1.4 BDL1.1BDL BDL BDL BDL 3 BDL 0.35 J BDL BDL BDL BDL BDL 0 409/04/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/07/160.85BDL BDL BDL BDL BDLBDL BDL BDL 1BDL BDL BDL BDL BDL BDL BDL0109/06/161.1BDL BDL BDL BDL BDLBDL BDL BDL 1BDL BDL BDL BDL BDL BDL BDL0112/07/161.20.83 BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 203/09/173.01.1 BDL BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL BDL BDL BDL 0 406/08/173.10.63 BDL BDL BDL BDL BDL BDLBDL 4BDL BDL BDL BDL BDL BDL BDL0406/13/180.71BDL BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0112/19/18BDL 0.72 BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0106/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/05/19BDL 0.67 BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0109/09/20BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/09/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/14/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL00MW-43D01/10/06390 12.0 11042.0 BDL6.8BDL BDL BDL 5614.8BDL BDL BDL3668.0 BDL 109 67003/27/09BDL BDL BDL 9.3 BDL BDL1.6BDL 1.2 129.0BDL 7.5 BDL 3.6 BDL 4.4 25 3706/24/09381 11.8 114BDL BDL BDL BDL BDL BDL 507 BDL BDL BDL BDL13.6BDL BDL 14 52009/02/09337 11.4 99.413.9 BDL 3.9 BDL BDL BDL 4663.0BDL BDL BDL16.729.9 BDL 57 52312/08/09327 16.5 11721.1 BDL 4.2 BDL BDL BDL 4863.9BDL BDL BDL24.142.4 BDL 76 56203/30/10322 12.2 91.17.7 BDL BDL BDL BDL BDL 4333.1BDL BDL BDL 11.0 26.8 BDL 41 47406/15/10488 17.0 13218.1 BDL 5.3 BDL BDL BDL 660 BDL BDL BDL BDL23.540.4 BDL 78 73809/22/10265 8.0 75.614.0 BDL 4.4 BDL BDL BDL 3671.5BDL BDL BDL 13.8 24.1 BDL 47 41412/09/10259 8.9 82.422.41.85.5 BDL BDL BDL 3801.7BDL BDL BDL 17.4 33.7 BDL 53 43303/24/11315 9.1 79.815.9 BDL 4.4 BDL BDL BDL 424 BDL BDL BDL BDL 16.3 30.0 BDL 46 47106/14/11336 9.4 78.613.1 BDL 4.1 BDL BDL BDL 441 BDL BDL BDL BDL 15.0 26.9 BDL 45 48609/22/11290 7.1 71.821.02.3 6.3BDL BDL BDL 399 BDL BDL BDL BDL 13.9 24.5 BDL 41 43912/15/11326 10.5 83.115.92.2 4.6BDL BDL BDL 4422.1BDL BDL BDL 17.2 27.2 BDL 50 49203/27/12420 14.1 96.19.6 BDL 2.9 BDL BDL BDL 5433.4BDL BDL BDL 18.9 27.9 BDL 50 59306/21/12356 11.4 83.79.5 BDL 3.2 BDL BDL BDL 4642.6BDL BDL BDL 12.2 20.5 BDL 35 49909/21/12279 8.558.5 11.3 BDL 3.4 BDL BDL BDL 3611.3BDL BDL BDL 10.3 16.3 BDL 28 38906/05/14209 6.953.3 5.61.9 J2.4 BDL BDL BDL 2791.50.77 J BDL BDL 7.1 10.6 BDL 22 30112/29/141323.324.5 15.61.34.5 BDL BDL BDL 181 BDL BDL BDL BDL 4.3 6.4 BDL 11 192Continued on next page11.990009.00© 2022 EnviroTrac Page 12 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-43D (Continued)06/10/151824.736.3 11.6 BDL 3.3 BDL BDL BDL 238 BDL BDL BDL BDL 5.3 8.6 BDL 14 25209/16/151202.7 21.9 12.8 BDL 3.6 BDL BDL BDL 161 BDL BDL BDL BDL 3.1 3.9 BDL 7 16812/10/15140 3.931.5 12.2 BDL 3.3 BDL BDL BDL 191 BDL BDL BDL BDL 5.3 9.2 BDL 15 20506/07/16191 6.145.84.3BDL1.6BDL BDL BDL 249BDL BDL BDL BDL 5.6 8.5 BDL19 26709/06/16171 4.933.26.3BDL2.2BDL BDL BDL 218BDL BDL BDL BDL 3.6 5.1 BDL9 22612/07/1689.72.0 16.0 9.4 BDL 2.7 BDL BDL BDL 120 BDL BDL BDL BDL 1.9 2.5 BDL 4 12403/09/1798.02.5 17.2 8.9 BDL 2.4 BDL BDL BDL 129 BDL BDL BDL BDL 2.9 4.2 BDL 7 13606/08/17169 5.437.08.0BDL2.2BDLBDLBDL 222BDL BDL BDL BDL 5.6 8.5 BDL14 23609/14/17153 4.833.97.0BDL1.9BDLBDLBDL 201BDL BDL BDL BDL 3.6 5.8 BDL9 21012/04/1777.12.1 15.1 6.7 BDL 2.1 BDL BDLBDL 103BDL BDL BDL BDL 1.9 2.5 BDL4 10803/14/1898.8 3.324.6 9.3 BDL 2 BDL BDLBDL 138BDL BDL BDL BDL 4.1 6.4 BDL11 14909/06/18102 3.831.64.8BDL1.5BDLBDLBDL 144BDL BDL BDL BDL 3.1 5.2 BDL8 15203/12/19145 5.336.9 2.1 BDL 0.92 BDL BDLBDL 190BDL BDL BDL BDL 3.4 5.3 BDL9 19909/11/1970.71.6 16.0 2.4 BDL 0.92 BDL BDLBDL 92BDL BDL BDL BDL 1.2 1.9 BDL39503/31/20129 4.534.9 2.6 BDL 0.89 BDL BDLBDL 172BDL BDL BDL BDL 2.6 4.5 BDL7 17903/11/2198.7 3.323.3 1.2 BDL BDL BDL BDLBDL 127BDL BDL BDL BDL 1.6 2.2 BDL4 13003/01/2261.61.7 13.4 1.5 BDL 0.53 BDL BDLBDL 79BDL BDL BDL BDL 1.2 2.2 BDL382MW-4404/11/07BDL 2.1 BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 206/07/1647.0 125 4937.515.41.7BDL BDL BDL 690BDL BDL BDL BDL 4.6 4.1 BDL15 70509/06/16BDL3.3BDL BDL BDL BDLBDL BDL BDL3 BDL BDL BDL BDL BDL BDL BDL 0 312/07/16BDL 1.8 BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 203/09/17BDL 1.4 BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 106/08/17BDL 1.5 BDL BDL BDL BDL BDL BDLBDL 3BDL BDL BDL BDL BDL BDL BDL0306/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/05/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 2BDL BDL BDL BDL BDL BDL BDL0209/09/20BDL 1.7 BDL BDL BDL BDL BDL BDLBDL 4BDL BDL BDL BDL BDL BDL BDL0409/09/21BDL7.1BDL BDL BDL BDL BDL BDLBDL 8BDL BDL BDL BDL BDL BDL BDL0809/14/22BDL5.8BDL BDL BDL BDL BDL BDLBDL 7BDL BDL BDL BDL BDL BDL BDL07MW-4509/13/07BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/05/081.2BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 109/04/08BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 001/05/091.41.2 BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 303/05/091.3BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 106/24/091.8BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 209/02/092.41.1 BDL BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL BDL BDL BDL 0 412/08/093.01.9 1.2 BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL 0 603/30/101.2BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 106/15/101.5BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 109/22/102.91.9 BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 212/09/103.52.8 1.3 BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 503/24/115.4 4.12.5 BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1206/14/115.7 3.62.2 BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1210/24/116.3 4.93.6 BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1212/15/114.9 4.03.3 BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1203/27/126.2 4.83.3 BDL BDL BDL BDL BDL BDL 14 BDL BDL BDL BDL BDL BDL BDL 0 1406/21/127.1 5.43.4 BDL BDL BDL BDL BDL BDL 16 BDL BDL BDL BDL BDL BDL BDL 0 1609/21/129.1 6.84.0 0.6 BDL BDL BDL BDL BDL 21 BDL BDL BDL BDL BDL BDL BDL 0 2112/18/126.6 27.99.9 0.67 BDL BDL BDL BDL BDL 45 BDL BDL BDL BDL 0.53 0.77 BDL 1 4603/27/1311.7 10.66.9 0.77 BDL BDL BDL BDL BDL 30 BDL BDL BDL BDL BDL BDL BDL 0 3006/27/137.3 6.44.1 0.39 J BDL BDL BDL BDL BDL 18 BDL BDL BDL BDL BDL BDL BDL 0 1809/10/1313.3 11.89.3 1.1 BDL BDL BDL 0.25 J BDL 36 BDL BDL BDL BDL BDL BDL BDL 0 3612/30/1417.916.313.6 1.4 BDL BDL BDL BDL BDL 49 BDL BDL BDL BDL BDL BDL BDL 0 4903/04/156.9 9.211.6 0.79 BDL BDL BDL BDL BDL 29 BDL BDL BDL BDL BDL BDL BDL 0 2906/07/1610.3 8.27.5 0.70 BDL BDLBDL BDL BDL 27BDL BDL BDL BDL BDL BDL BDL027Continued on next page11.990009.00© 2022 EnviroTrac Page 13 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-45 (Continued)09/06/1616.3 13.712.4 1.2 BDL BDLBDL BDL BDL44 BDL BDL BDL BDL BDL BDL BDL 0 4412/07/1619.0 16.716.9 1.8 BDL BDL BDL BDL BDL 54 BDL BDL BDL BDL BDL BDL BDL 0 5403/09/1717.0 14.914.5 1.3 BDL BDL BDL BDL BDL 48 BDL BDL BDL BDL BDL BDL BDL 0 4806/08/1723.2 20.019.4 2.0 BDL BDL BDL BDLBDL 65BDL BDL BDL BDL BDL BDL BDL06512/04/170.990.89 16.4 BDL BDL BDL BDL BDLBDL 18BDL BDL BDL BDL BDL BDL BDL01809/06/1821.70 1.3 BDL 21.2 BDL BDL BDLBDL 26BDL BDL BDL BDL BDL BDL BDL02603/12/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/11/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/31/200.63 0.54 0.58 BDL BDL BDL BDL BDLBDL 2BDL BDL BDL BDL BDL BDL BDL0203/11/21BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL 1.1 BDL BDL BDL BDL BDL1103/01/22BDL 0.74 0.66 BDL BDL BDL BDL BDLBDL 2BDL BDL BDL BDL BDL BDL BDL02MW-4609/22/11149 371 38314 BDL 2.8 BDL 1.3 BDL 921 BDL BDL BDL BDL 3.3 2.4 BDL 6 92710/24/11190 470 48015.1 BDL 3.2 BDL 1.1 BDL 1,159 BDL BDL BDL BDL 4.0 4.1 BDL 11 1,17112/15/11215 541 48714.8 BDL 2.9 BDL BDL BDL 1,261 BDL BDL BDL BDL 2.5 BDL BDL 6 1,26703/27/12184 441 40010.9 BDL 2.6 BDL BDL BDL 1,039 BDL BDL BDL BDL 4.2 BDL BDL 4 1,04306/21/12131 357 3609.1 BDL 2.1 BDL BDL BDL 859 BDL BDL BDL BDL 1.3 BDL BDL 6 86509/21/12178 418 38511.4 BDL 2.3 BDL BDL BDL 995 BDL BDL BDL BDL 1.9 BDL BDL 2 99712/18/1282.6 214 70913.3 BDL 2.8 BDL 1.3 BDL 1,0231.2 J5.5 0.64 J 2.76 J 6.4 5.0 BDL 26 1,03003/27/13111 278 79814.7 BDL 3.2 BDL 1.7 J BDL 1,2052.1 JBDL BDL BDL 7.4 7.6 BDL 15 1,22006/27/1329.7 74.7 1031.6 BDL 0.47 J BDL BDL BDL 209 BDL BDL BDL BDL 0.6 1.0 BDL 2 21109/10/13187 366 45014.40.66 J2.7 0.30 J 1.2 BDL 1,026 BDL BDL BDL BDL 3.0 3.0 BDL 7 1,03212/05/1397.4 277 3778.7 BDL 1.6 J BDL BDL BDL 762761.7BDL BDL BDL 2.9 2.5 BDL 11 77303/20/14117 311 4498.91.8 J2.0 BDL 0.68 J BDL 890 BDL BDL BDL BDL 6.6 5.8 BDL 12 90506/05/1475.5 207 2946.41.1 J1.4 J BDL BDL BDL 585 BDL BDL BDL BDL 2.3 1.2 J BDL 4 58909/04/1439.9 105 1643.71.90.8 BDL 0.33 J BDL 316 BDL 0.44 J 0.29 J 1.21 J 1.5 0.93 BDL 5 32112/30/14102 272 53710.115.6BDL BDL BDL BDL 937 BDL BDL BDL BDL 6.0 5.6 BDL 23 95903/04/1573.0 209 56110.720.1BDL BDL BDL BDL 874 BDL 6.9 BDL BDL 6.7 BDL BDL 20 89406/10/1571.0 200 4758.711.0BDL BDL BDL BDL 766 BDL BDL BDL BDL 4.5 4.1 BDL 9 77412/10/1535.2 88.0 5077.325.5BDL BDL BDL BDL 663 BDL BDL BDL BDL 7.4 7.3 BDL 25 68806/07/16BDL4.4BDL BDL BDL BDLBDL BDL BDL 4BDL BDL BDL BDL BDL BDL BDL0409/06/1645.6 119 3906.222.41.5BDL BDL BDL585 BDL BDL BDL BDL 3.9 3.2 BDL 7 59212/07/1619.4 50.2 2663.828.21.1 BDL BDL BDL 369 BDL BDL BDL BDL 6.7 5.4 BDL 12 38103/09/1711.2 24.8 97.51.818.70.63 BDL BDL BDL 155 BDL BDL BDL BDL 4.6 3.5 BDL 8 16306/08/1714.6 35.7 1121.821.40.83 BDL BDLBDL 187BDL BDL BDL BDL 5.7 3.9 BDL10 19712/04/1726.7 60.9 2893.572.82.2 BDL BDLBDL 455BDL BDL BDL BDL 12.0 10.6 BDL23 47809/06/1825.8 64.2 3483.659.51.8 BDL BDLBDL 503BDL BDL BDL BDL 7.4 6.9 BDL14 51703/12/1958.5 134 3313.533.51.7 BDL BDLBDL 562BDL BDL BDL BDL 5.0 3.8 BDL9 57109/11/1945.7 117 2934.137.91.5 BDL BDLBDL 499BDL BDL BDL BDL 3.5 2.7 BDL6 50503/31/2076.4 192 2833.723.21.4 BDL BDLBDL 580BDL BDL BDL BDL 1.6 BDL BDL2 58103/11/2160.4 142 1752.913.90.94 BDL BDLBDL 395BDL BDL BDL BDL 1.5 0.97 BDL2 39803/01/2272.1 169 2523.514BDL BDL BDLBDL 511BDL BDL BDL BDL 4.2 2.7 BDL7 518MW-4712/05/11181 395 28813.5 BDL 2.4 BDL BDL BDL 880 BDL BDL BDL BDL 9.7 7.1 BDL 20 90012/15/11139 378 2799.9 BDL 2.0 BDL BDL BDL 808 BDL BDL BDL BDL 7.5 4.7 BDL 12 82003/27/1239.8 122 96.7BDL BDL 0.54 BDL BDL BDL 262 BDL BDL BDL BDL 2.4 0.68 BDL 3 26506/21/1230.8 108 1551.91.00.73 BDL BDL BDL 297 BDL BDL BDL BDL 4.4 1.3 BDL 6 30309/21/1214.2 41.3 3843.07.21.1 BDL 0.51 BDL 452 BDL BDL BDL BDL 7.8 4.3 BDL 12 46412/18/1211.4 31.9 3.253.341.61.2 BDL BDL BDL 414 BDL BDL BDL BDL 10.6 5.7 BDL 17 43203/27/1334.1 96.3 2243.9 BDL 1.4 BDL BDL BDL 3601.8BDL BDL BDL 2.4 0.79 J BDL 4 36406/27/1350.1 144 1683.68.60.88 BDL BDL BDL 375 BDL BDL BDL BDL 0.76 0.49 J BDL 2 37709/10/1363.4 171 2816.37.01.1 J BDL BDL BDL 530 BDL BDL BDL BDL 2.6 1.1 J BDL 10 54012/05/1391.9 271 48010.212.51.8 BDL 0.79 J BDL 8702.60.84 J 0.98 J 1.8 J 4.7 3.1 BDL 19 88803/20/14102 288 56010.446.32.2 J BDL BDL BDL 1,009 BDL BDL BDL BDL 9.3 6.7 BDL 16 1,02506/05/1485.7 247 3818.416.21.7 J BDL BDL BDL 740 BDL BDL BDL BDL 3.1 BDL BDL 3 74309/04/1438.6 107 1312.61.30.5 BDL 1.8 BDL 283 BDL 0.27 J BDL BDL 2.0 1.0 BDL 4 287Continued on next page11.990009.00© 2022 EnviroTrac Page 14 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-47 (Continued)12/30/14199 548 61014.26.52.8 BDL BDL BDL 1,381 BDL BDL BDL BDL 13.2 9.5 BDL 35 1,41603/04/15141 430 48412.2 BDL BDL BDL 3.2 BDL 1,070 BDL 7.7 BDL BDL 8.6 6.0 BDL 29 1,09906/10/15161 434 50411.1 BDL 2.1 BDL BDL BDL 1,112 BDL BDL BDL BDL 12.1 9.0 BDL 21 1,13312/10/1542.4 115 1994.11441.5 BDL BDL BDL 506 BDL BDL BDL BDL 12.4 9.6 BDL 22 52809/14/1794.1 246 3466.539.22.5 BDL BDL BDL 747 BDL BDL BDL BDL 15.0 9.9 BDL 25 77203/14/1860.8 168 2454.1 BDL 1.7 BDL BDL BDL 480 BDL BDL BDL BDL 12.6 8.2 BDL 21 50009/06/1853.0 151 2414.3 15.9 1.6 BDL BDL BDL 467 BDL BDL BDL BDL 13.1 8.4 BDL 22 48803/13/1957.5 156 2002.635.51.6 BDL BDL BDL 453 BDL BDL BDL BDL 7.4 3.9 BDL 11 46509/11/1975.1 208 2533.913.71.6 BDL BDL BDL 555 BDL BDL BDL BDL 6.7 2.4 BDL 9 56403/31/2062.9 178 2572.829.31.8 BDL BDL BDL 532 BDL BDL BDL BDL BDL 9.9 4.4 14 54603/11/2129.4 83.7 1131.319.41.0 BDL BDL BDL 248 BDL BDL BDL BDL 3.5 1.2 BDL 5 25303/01/2264.8 165.0 2953.232.61.6 BDL BDL BDL 562 BDL BDL BDL BDL 5.1 1.9 BDL 7 569MW-4812/05/11BDL3.9BDL BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL BDL BDL BDL 0 412/15/11BDL3.1BDL BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 312/18/12BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/27/130.43 J 1.7 0.48 J BDL BDL BDL BDL BDL BDL 3 BDL BDL BDL BDL BDL BDL BDL 0 306/27/131.4 5.21.7 BDL BDL BDL BDL BDL BDL 8 BDL BDL BDL BDL BDL BDL BDL 0 809/10/130.64 2.3 0.88 BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL BDL BDL BDL 0 412/05/138.7 44.413.6 1.1 BDL BDL BDL BDL BDL 68 BDL BDL BDL BDL 0.53 0.9 BDL 1 6903/20/142.6 9.01.8 BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL 0 1306/05/145.1 19.77.1 0.40 J BDL BDL BDL BDL BDL 32 BDL BDL BDL BDL BDL 0.27 J BDL 0 3309/04/14BDL9.53.3 BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL 0 1312/30/141.6 11.53.4 BDL BDL BDL BDL BDL BDL 17 BDL BDL BDL BDL BDL BDL BDL 0 1703/04/151.4 14.34.0 BDL BDL BDL BDL BDL BDL 20 BDL BDL BDL BDL BDL BDL BDL 0 2006/10/15BDL 1.4 BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 109/16/15BDL 1.3 BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 112/10/15 0.655.11.1 BDL BDL BDL BDL BDL BDL 7 BDL BDL BDL BDL BDL BDL BDL 0 703/22/162.9 8.22.6 BDL BDL BDL BDL BDL BDL 14 BDL BDL BDL BDL BDL BDL BDL 0 1406/07/163.5 9.93.8 BDL BDL BDLBDL BDL BDL 17BDL BDL BDL BDL BDL BDL BDL01709/06/16BDL 1.4 BDL BDL BDL BDLBDL BDL BDL1 BDL BDL BDL BDL BDL BDL BDL 0 112/07/162.0 102.8 BDL BDL BDL BDL BDL BDL 15 BDL BDL BDL BDL BDL BDL BDL 0 1503/09/17BDL 1.1 BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 106/08/17BDL 0.73 BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0109/14/17BDL 0.86 BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0112/04/17BDL 0.53 BDL BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0103/14/18BDL 0.63 0.84 BDL BDL BDL BDL BDLBDL 1BDL BDL BDL BDL BDL BDL BDL0106/13/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/06/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/19/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/13/19BDL3.73.8 BDL BDL BDL BDL BDLBDL 8BDL BDL BDL BDL BDL BDL BDL0806/12/19BDL9.010.5BDLBDLBDLBDLBDLBDL 20BDL BDL BDL BDL BDL BDL BDL02009/11/19BDL 2.5 4.2 BDL BDL BDL BDL BDLBDL 7BDL BDL BDL BDL BDL BDL BDL0712/05/19BDL3.88.1 BDL BDL BDL BDL BDLBDL 12BDL BDL BDL BDL BDL BDL BDL01203/31/20BDL4.16.3 BDL1.6BDL BDL BDLBDL 12BDL BDL BDL BDL BDL BDL BDL01209/09/20BDL 1.0 1.2 BDL2.5BDL BDL BDLBDL 5BDL BDL BDL BDL BDL BDL BDL0503/11/21BDL 1.9 4.5 BDL10.4BDL BDL BDLBDL 17BDL BDL BDL BDL BDL BDL BDL01709/09/21BDL 0.69 1.1 BDL4.0BDL BDL BDLBDL 6BDL BDL BDL BDL BDL BDL BDL0603/01/22BDL 1.80 2.8 BDL2.8BDL BDL BDLBDL 7BDL BDL BDL BDL BDL BDL BDL0709/14/22BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL00MW-4912/05/11196 502 43216.8 BDL 3.1 BDL BDL 1.5 1,151 BDL BDL BDL BDL 13.7 12.8 BDL 30 1,18212/15/11233 565 57015.6 BDL BDL BDL BDL BDL 1,384 BDL BDL BDL BDL 16.1 13.6 BDL 30 1,41303/27/12127 309 2946.9 BDL BDL BDL BDL BDL 739 BDL BDL BDL BDL 3.3 1.8 BDL 5 74406/21/12118 288 3727.3 BDL 1.9 BDL BDL BDL 787 BDL BDL BDL BDL 2.8 1.7 BDL 8 79509/21/12227 427 50112.7 BDL 3.0 BDL 1.2 BDL 1,173 BDL BDL BDL BDL 4.2 2.6 BDL 10 1,183Continued on next page11.990009.00© 2022 EnviroTrac Page 15 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-49 (Continued)12/18/12BDL1.6 J 5012.5 J6.9BDL BDL BDL BDL 512 BDL BDL BDL BDL 10.0 7.1 BDL 17 52903/27/134.7 8.8 5776.0 BDL 1.6 J BDL 1.0 J BDL 5994.82.1 BDL 4.2 J 7.8 5.0 BDL 20 61906/27/135.3 14.3 1901.9 260 0.8 BDL 0.62 BDL 473 BDL BDL BDL BDL 1.8 1.5 BDL 3 47609/10/1315.2 36.8 2332.81471.6 BDL 1.5 BDL 438 BDL BDL BDL BDL 1.7 1.5 BDL 12 45012/05/1315.7 40.4 4414.61372.1 BDL 1.1 BDL 642 0.88 J BDL BDL BDL 3.7 2.4 BDL 10 65103/20/145.9 13.6 1101.41341.2 BDL 0.64 BDL 267 BDL BDL BDL BDL 2.2 1.6 BDL 4 27106/05/1420.7 48.2 155.02.31621.9 BDL 0.9 BDL 391 BDL BDL BDL BDL 2.8 BDL BDL 7 39809/04/1460.1 147 3036.162.52.0 BDL 0.87 BDL 582 BDL BDL BDL BDL 2.7 2.1 BDL 8 58912/30/1457.4148 3364.764.92.3 BDL BDL BDL 613 BDL BDL BDL BDL 12.3 10.8 BDL 27 64003/04/152.2 5.7 4124.91812.5 BDL 1.5 BDL 610 BDL 2.9 BDL BDL 13.4 12.7 BDL 29 63906/10/1550.4 123 3684.655.8BDL BDL BDL BDL 602 BDL BDL BDL BDL 6.5 3.7 BDL 10 61212/10/1529.6 67.2 2202.223.31.0 BDL BDL BDL 343 BDL BDL BDL BDL 8.3 6.2 BDL 19 36209/14/1762.9 141 2062.820.31.1 BDL BDL BDL 434 BDL BDL BDL BDL 3.3 1.4 BDL 5 43903/14/1822.8 60.0 1351.410.00.58 BDL BDL BDL 230 BDL BDL BDL BDL 8.6 4.5 BDL 13 24309/06/1825.3 60.2 1781.729.4BDL BDL BDL BDL 295 BDL BDL BDL BDL 2.6 BDL BDL 3 29703/13/193.9 11.112.9 BDL3.4BDL BDL BDL BDL 31 BDL 1.1 BDL BDL 1.4 0.86 BDL 3 3509/11/1924.7 59.8140.0 1.221.60.75 BDL BDL BDL 248 BDL BDL BDL BDL 0.6 BDL BDL 1 24903/31/2014.4 36.139.5 BDL5.5BDL BDL BDL BDL 98 BDL BDL BDL BDL 1.8 1.3 BDL 3 10203/11/210.76 3.14.8 BDL1.9BDL BDL BDL BDL 14 BDL 0.85 BDL BDL 1.2 0.92 BDL 3 1703/01/2235.9 73.0110 BDL57.31.1 BDL 0.5 BDL 278 BDL BDL BDL BDL 3.1 1.3 BDL 4 282MW-5001/27/12BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/04/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/06/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/13/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/11/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/31/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/11/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/01/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0MW-5101/27/12BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/21/12BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/18/129.1 7.04.8 0.7 BDL BDL BDL BDL BDL 22 BDL BDL BDL BDL BDL BDL BDL 0 2203/27/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/27/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/10/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/05/13BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/20/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/05/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/04/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/30/14BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/04/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/10/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/16/15BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 012/10/15 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/22/16 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/07/16 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/06/16BDL BDL BDL BDL BDL BDLBDL BDL BDL0 BDL BDL BDL BDL BDL BDL BDL 0 012/07/16BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/09/17BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/08/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/14/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/04/17BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0003/14/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0006/13/18BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0009/06/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0Continued on next page11.990009.00© 2022 EnviroTrac Page 16 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-51 (Continued)12/19/18BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/13/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 006/12/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/11/19BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/31/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/09/20BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 003/11/21BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/09/214.6 22.511.9 BDL BDL BDL BDL BDL BDL 39 BDL BDL BDL BDL BDL BDL BDL 0 3903/01/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 009/14/22BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0MW-5201/27/122.5 13.82.6 BDL BDL BDL BDL BDL BDL 19 BDL BDL BDL BDL BDL BDL BDL 0 1912/18/125.9 31.16.1 0.44 J BDL BDL BDL BDL BDL 44 BDL BDL 0.36 J 0.52 J BDL BDL 2.2 4 4703/27/132.5 6.80.9 BDL BDL BDL BDL BDL BDL 10 BDL BDL BDL BDL BDL BDL BDL 0 1006/27/136.3 26.75.0 0.39 J BDL BDL BDL BDL BDL 38 BDL BDL BDL BDL BDL BDL BDL 0 3809/10/136.2 28.84.9 0.34 J BDL BDL BDL 0.25 J BDL 40 BDL BDL BDL BDL BDL BDL BDL 0 4012/05/137.6 39.89.5 0.71 BDL BDL BDL BDL BDL 58 BDL BDL BDL BDL 0.3 J BDL BDL 0 5803/20/142.7 7.81.4 BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 1206/05/148.7 36.97.7 0.6 BDL BDL BDL BDL BDL 54 BDL BDL BDL BDL BDL BDL BDL 0 5412/30/1411.4 58.212.2 BDL BDL BDL BDL BDL BDL 82 BDL BDL BDL BDL BDL BDL BDL 0 8203/04/152.7 13.13.6 BDL BDL BDL BDL BDL BDL 19 BDL BDL BDL BDL BDL BDL BDL 0 1906/10/154.9 26.39.9 BDL BDL BDL BDL BDL BDL 41 BDL BDL BDL BDL BDL BDL BDL 0 4112/10/151.1 3.40.63 BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 503/22/163.1 13.75.00 BDL BDL BDL BDL BDL BDL 22 BDL BDL BDL BDL BDL BDL BDL 0 2206/07/163.0 14.15.4 BDL BDL BDLBDL BDL BDL 23BDL BDL BDL BDL BDL BDL BDL02312/07/167.2 43.513.4 0.77 BDL BDL BDL BDL BDL 65 BDL BDL BDL BDL BDL 0.54 BDL 1 6503/09/171.8 10.33.8 BDL1.1BDL BDL BDL BDL 17 BDL BDL BDL BDL BDL BDL BDL 0 1706/08/174.3 19.76.2 BDL BDL BDL BDL BDLBDL 30BDL BDL BDL BDL BDL BDL BDL03012/04/174.0 16.44.4 BDL BDL BDL BDL BDLBDL 28BDL BDL BDL BDL BDL BDL BDL02803/14/181.0 6.12.4 BDL BDL BDL BDL BDLBDL 10BDL BDL BDL BDL BDL BDL BDL01006/13/182.0 13.46.9 BDL BDL BDL BDL BDLBDL 22BDL BDL BDL BDL BDL BDL BDL02209/06/181.8 16.512.0BDLBDLBDLBDLBDLBDL 30BDL BDL BDL BDL BDL BDL BDL03012/19/181.7 4.81.2 BDL BDL BDL BDL BDLBDL 8BDL BDL BDL BDL BDL BDL BDL0803/13/191.1 7.03.9 BDL BDL BDL BDL BDLBDL 12BDL BDL BDL BDL BDL BDL BDL01206/12/192.4 17.519.4BDLBDLBDLBDLBDLBDL 39BDL BDL BDL BDL BDL BDL BDL03909/11/19BDL BDL BDL BDL BDL BDL BDL BDLBDL 0BDL BDL BDL BDL BDL BDL BDL0012/05/194.3 25.88.1 BDL BDL BDL BDL BDLBDL 38BDL BDL BDL BDL BDL BDL BDL03803/31/202.7 9.32.8 BDL BDL BDL BDL BDLBDL 15BDL BDL BDL BDL BDL BDL BDL01509/09/207.1 36.111.6BDLBDLBDLBDLBDLBDL 55BDL BDL BDL BDL BDL BDL BDL05503/11/212.1 10.64.3 BDL BDL BDL BDL BDLBDL 17BDL BDL BDL BDL BDL BDL BDL01703/01/221.8 8.82.6 BDL BDL BDL BDL BDLBDL 13BDL BDL BDL BDL BDL BDL BDL01309/14/223.7 17.110.8BDLBDLBDLBDLBDLBDL 32BDL BDL BDL BDL BDL BDL BDL032MW-53D01/27/12112 283 2877.9 BDL 1.5 BDL BDL BDL 691 BDL BDL BDL BDL 12.6 12.0 BDL 15 70603/27/12119 190 46310.12.22.8 BDL 0.73 BDL 788 0.8 BDL BDL BDL24.118.8 BDL 44 83206/21/1241.9 32.7 5888.2 BDL 2.6 BDL BDL BDL 673 BDL BDL BDL BDL20.317.7 BDL 38 71109/21/124.3 6.9 6436.7 BDL 2.7 BDL BDL BDL 664 BDL BDL BDL BDL 18.8 16.5 BDL 35 69912/05/1353.4 167 5927.748.02.2 J BDL BDL BDL 8705.31.5 J 1.6 J BDL 16.2 15.2 BDL 47 91703/20/1474.5 233 6309.748.92.3 J BDL BDL BDL 988 BDL BDL BDL BDL 19.0 15.5 BDL 35 1,02306/05/1475.4 225 5578.856.52.1 J BDL BDL BDL 925 BDL BDL BDL BDL 19.6 15.1 BDL 35 96009/04/1413.4 41 83.71.26.50.31 J BDL BDL BDL 146 BDL 0.30 J BDL BDL 3.0 2.3 BDL 6 15212/30/14BDL 0.855186.61042.2 BDL 1.3 BDL 633 0.5 BDL BDL BDL 15.3 12.5 BDL 28 66103/04/15109 348 51410.138.42.5 BDL BDL BDL 1,022 BDL 6.5 BDL BDL 18.0 15.8 BDL 40 1,06306/10/15101 302 5119.133.1BDL BDL BDL BDL 956 BDL BDL BDL BDL 19.7 14.7 BDL 34 99112/10/1532.1 96.7 1812.612.1BDL BDL BDL BDL 325 BDL BDL BDL BDL 12.5 7.4 BDL 20 34406/07/1673.0 171 1554.07.10.99BDL BDL BDL 411BDL BDL BDL BDL 10.5 6.6 BDL17 428Continued on next page11.990009.00© 2022 EnviroTrac Page 17 of 18October 2022
TABLE 5: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTSSample IDCollection DateTetrachloro-etheneTrichloro-ethenecis-1,2-Dichloroethene1,1-DichloroetheneVinyl Chloride 1,1-Dichloroethane1,2-Dichloroethanetrans-1,2- Dichloroethene1,1,1-TrichloroethaneBenzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl etherNaphthalene2L Standard0.7 3 70 350 0.03 6 0.4 100 2001 600600 500 20 70 6CHLORINATED HYDROCARBONS (μg/L)PETROLEUM (μg/L)TOTAL VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMW-53D (Continued)09/06/1635.6 96.9 1282.111.00.80BDL BDL BDL274 BDL BDL BDL BDL 9.5 5.0 BDL 15 28912/07/1654.0 131 1392.410.50.94 BDL BDL BDL 338 BDL BDL BDL BDL 10.3 7.0 BDL 17 35503/09/1745.3 112 98.72.75.50.75 BDL BDL BDL 265 BDL BDL BDL BDL 11.3 6.0 BDL 17 28206/08/1790.7 214 2143.720.31.4 BDL BDLBDL 544BDL BDL BDL BDL 14.0 8.6 BDL23 56709/14/1781.8 208 3405.029.31.8 BDL BDLBDL 666BDL BDL BDL BDL 18.6 11.0 BDL30 69612/04/1761.1 141 1832.822.21.4 BDL 0.71BDL 412BDL BDL BDL BDL 17.9 11.7 BDL30 44203/14/1888.8 248 2815.117.91.6 BDL BDLBDL 624BDL BDL BDL BDL 17.4 10.5 BDL28 67009/06/1869.5 186 2134.030.51.6 BDL BDLBDL 505BDL BDL BDL BDL 15.3 9.4 BDL25 52903/13/1961.5 151 1812.618.31.1 BDL BDLBDL 416BDL BDL BDL BDL 10.6 5.8 BDL16 43209/11/1917.5 39.7 82.40.869.8BDL BDL BDLBDL 150BDL BDL BDL BDL 6.0 2.3 BDL8 15903/31/2056.3 146 1881.918.91.3 BDL BDLBDL 412BDL BDL BDL BDL 11.2 6.2 BDL17 43003/11/2119.6 47.265.8 0.8110.80.56 BDL BDLBDL 145BDL BDL BDL BDL 5.2 2.5 BDL8 15203/01/2225.0 56.360.7 0.7810.5BDL BDL BDLBDL 153BDL BDL BDL BDL 3.5 1.7 BDL5 158MW-54D09/21/12BDL4.22.1 BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL 0 606/10/15BDL4.73.0 BDL BDL BDL BDL BDL BDL 8 BDL BDL BDL BDL BDL BDL BDL 0 806/07/160.657.95.0 BDL BDL BDLBDL BDL BDL 14BDL BDL BDL BDL BDL BDL BDL01409/06/16BDL4.02.9 BDL BDL BDLBDL BDL BDL7 BDL BDL BDL BDL BDL BDL BDL 0 712/07/16BDL 2.1 1.8 BDL BDL BDL BDL BDL BDL 4 BDL BDL BDL BDL BDL BDL BDL 0 403/09/17BDL 2.6 1.9 BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 506/08/17BDL4.83.0 BDL BDL BDL BDL BDLBDL 8BDL BDL BDL BDL BDL BDL BDL0809/14/17BDL3.02.1 BDL BDL BDL BDL BDLBDL 5BDL BDL BDL BDL BDL BDL BDL0512/04/17BDL 1.8 1.5 BDL BDL BDL BDL BDLBDL 3BDL BDL BDL BDL BDL BDL BDL0303/14/18BDL 2.1 1.7 BDL BDL BDL BDL BDLBDL 4BDL BDL BDL BDL BDL BDL BDL0409/06/18BDL 1.4 2.2 BDL BDL BDL BDL BDLBDL 4BDL BDL BDL BDL BDL BDL BDL0403/13/19BDL5.75.5 BDL BDL BDL BDL BDLBDL 11BDL BDL BDL BDL BDL BDL BDL01109/11/192.4BDL 2.2 BDL BDL BDL BDL BDLBDL 5BDL BDL BDL BDL BDL BDL BDL0503/31/200.576.15.4 BDL BDL BDL BDL BDLBDL 12BDL BDL BDL BDL BDL BDL BDL01203/11/210.627.76.4 BDL2.0BDL BDL BDLBDL 17BDL BDL BDL BDL BDL BDL BDL01703/01/22BDL2.51.7 BDL BDL BDL BDL BDLBDL 4BDL BDL BDL BDL BDL BDL BDL04NOTES:μg/L = All units measured in micrograms per literTotal Petroleum Hydrocarbons include chloromethane, dichlorodifluoromethane, n-propyl benzene, isopropylbenzene, trichlorofluoromethane, 1, 2, 4-trimethylbenzene and/or 1, 3, 5-trimethylbenzene values when detected (see Table 4).2L Standard = North Carolina Groundwater Standard (15A NCAC 2L .0202), effective April 1, 2013.BDL = Below Detection LimitsBOLD = Concentration exceeds the 2L Standard MTBE = Methyl tert-butyl ether11.990009.00© 2022 EnviroTrac Page 18 of 18October 2022

FIGURES

APPENDIX A
LABORATORY REPORT

APPENDIX B
VOLATILE ORGANIC COMPOUNDS VERSUS TIME GRAPHS

02,5005,0007,50010,00012,50015,00017,50020,00022,50025,000CONCENTRATIONS (μg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐7(contains Oxygen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008Installed Hydrogen June 2018Removed Hydrogen, Installed Oxygen
05001,0001,5002,0002,5003,0003,5004,0004,500CONCENTRATIONS (μg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐10Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008 Installed HydrogenMay 2009 Removed Hydrogen
05101520253035404550CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐11Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons
012345CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐12Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons
012345678910CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐12DTotal VOCsTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons
050100150200250300350400450500CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐13D(contains Oxygen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2017Installed Oxygen
05001,0001,5002,0002,500CONCENTRATIONS (μg/L)DATECHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDSVERSUS TIME IN MW‐14(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsFebruary 2013Installed HydrogenAugust 2015Removed HydrogenJune 2017 Reinstalled Hydrogen
050100150200250300350400450500CONCENTRATIONS (μg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐14D(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008 Installed HydrogenAugust 2015Removed HydrogenJune 2017 Reinstalled Hydrogen
050100150200250300350400450500CONCENTRATIONS (μg/L)DATECHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDSVERSUS TIME IN MW‐15(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008Installed HydrogenAugust 2015 Removed HydrogenJune 2017 Reinstalled Hydrogen
0102030405060708090100CONCENTRATIONS (μg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐16(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008Installed Hydrogen 
01,0002,0003,0004,0005,0006,0007,0008,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐24 (contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008Installed Hydrogen 
01002003004005006007008009001,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐25(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsMay 2009 Installed Hydrogen
01002003004005006007008009001,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐27Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons
01,0002,0003,0004,0005,0006,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐28(CONTAINS OXYGEN DIFFUSER)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2017Installed Oxygen
02,5005,0007,50010,00012,50015,00017,50020,00022,50025,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐30(contains Oxygen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008Installed Hydrogen August 2015 Removed Hydrogen, Installed Oxygen
02,5005,0007,50010,00012,50015,00017,50020,00022,50025,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐31(contains Oxygen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsAugust 2015 Installed Oxygen
05,00010,00015,00020,00025,00030,00035,00040,00045,00050,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐32(contains Oxygen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsAugust 2015 Installed Oxygen
024681012CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐33Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons
050100150200250300350400450500CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐34Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008Installed Hydrogen December2011 Removed Hydrogen
05001,0001,5002,0002,5003,0003,5004,0004,5005,0005,5006,0006,5007,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐40(contains Oxygen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsAugust 2015 Installed Oxygen
05,00010,00015,00020,00025,00030,00035,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐41(contains Oxygen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsAugust 2015 Installed Oxygen
0102030405060708090100CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐42Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsFebruary 2013 Installed Hydrogen August 2015 Removed Hydrogen
01002003004005006007008009001,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐43D(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2008Installed Hydrogen 
01002003004005006007008009001,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐44Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum Hydrocarbons
0102030405060708090100CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐45(CONTAINS HYDROGEN DIFFUSER)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsJune 2017InstalledHydrogen
02004006008001,0001,2001,4001,6001,8002,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐46(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsAugust 2015 Installed HydrogenSeptember 2012 3DMe Injection
02004006008001,0001,2001,4001,6001,8002,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐47(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsDecember 2011 Installed Hydrogen September 2012 3DMe InjectionAugust2015 Reinstalled Hydrogen February 2013RemovedHydrogen 
0102030405060708090100CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐48(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsSeptember 2012 3DMe InjectionJune 2017 Installed Hydrogen
02004006008001,0001,2001,4001,6001,8002,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐49(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsDecember 2011 Installed Hydrogen September 2012 3DMe InjectionAugust2015 Reinstalled Hydrogen February 2013RemovedHydrogen 
05101520253035404550CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐50Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsSeptember 2012 3DMe Injection
05101520253035404550CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐51Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsSeptember 2012 3DMe Injection
0102030405060708090100CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐52(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsAugust 2015 Installed HydrogenSeptember 2012 3DMe Injection
02004006008001,0001,2001,4001,6001,8002,000CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐53D(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsAugust 2015 Installed HydrogenSeptember 2012 3DMe Injection
0102030405060708090100CONCENTRATIONS (µg/L)TIMEVOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW‐54D(contains Hydrogen Diffuser)Total VOCsTotal Chlorinated HydrocarbonsTotal Petroleum HydrocarbonsSeptember 2012 3DMe InjectionJune 2017 Installed Hydrogen