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Soil and Groundwater Assessment Report
Kee Auto Assemblage
Charlotte, Mecklenburg County, North Carolina
Prepared for
Dimensional Fund Advisors
May 3, 2016
ECS Carolinas, LLP
1200 Woodruff Road Suite H-12
Greenville, South Carolina 29607
(864) 987-1610
May 3, 2016
Mr. Kenneth Manell
Dimensional Fund Advisors
1299 Ocean Avenue
Santa Monica, California 90401
Reference: Soil and Groundwater Assessment Report
Kee Auto Assemblage
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
Dear Mr. Manell:
ECS Carolinas, LLP (ECS) is pleased to provide Dimensional Fund Advisors our Soil and Groundwater
Assessment Report for the above referenced property. ECS’ services were conducted in accordance
with the services outlined in ECS Proposal 49:431P dated February 17, 2016 and authorized on February
24, 2016 and ECS Proposal 49:924P dated April 5, 2016 and authorized on April 7, 2016. ECS
appreciates the opportunity to provide our services to you. If there are questions regarding this report,
or a need for further information, please contact us at (864) 987-1610.
Respectfully submitted,
ECS CAROLINAS, LLP
Britney C. Barnes John M. Stewart, PG, CPG
Senior Environmental Project Manager Principal Geologist
BCBarnes@ecslimited.com JStewart1@ecslimited.com
864-987-1610 336-856-7150
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
TABLE OF CONTENTS
1.0 PROJECT INFORMATION ......................................................................................................................... 1
2.0 SCOPE OF SERVICES ................................................................................................................................ 1
3.0 RESULTS .................................................................................................................................................. 5
4.0 FINDINGS AND CONCLUSIONS ................................................................................................................ 5
5.0 RECOMMENDATIONS ............................................................................................................................. 8
6.0 QUALIFICATIONS OF REPORT .................................................................................................................. 8
FIGURES
Figure 1 Site Topographic Map
Figure 2 Sample Location Map
Figure 3 Groundwater Elevation Map
Figure 4 Distribution of Tetrachloroethylene in the Groundwater
Figure 5 Distribution of Trichloroethylene in the Groundwater
APPENDICIES
Appendix A: Photographic Log
Appendix B: Laboratory Analytical Data Sheets and Chain of Custody Record
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
1
1.0 PROJECT INFORMATION
The subject site is located at 1538 South Tryon Street in Charlotte, Mecklenburg County, North Carolina
(Figure 1). The subject site is comprised of six parcels that make up an approximate 3.18-acre property
that is currently operated as Kee Auto Assemblage. ECS completed at Phase I Environmental Site
Assessment (ESA) for the site on March 24, 2016 (ECS Project Number 49:1558).
Based on the research conducted as a part of the Phase I ESA, the subject site was identified as an historic
automotive servicing station. However, based on the owner interview, the site was formerly operated as
an automotive trim shop that conducted manufacturing of the interior car covers and transitioned to the
manufacturing of vinyl and convertible automobile tops. Although automobile servicing was not
conducted on the property, there remains the potential for undocumented use of chlorinated solvents in
association with the historical operations.
In addition to the on-site historic operations, the research conducted as a part of the Phase I ESA also
identified historic operations on the southern adjacent property that included a chemical laboratory,
chemical warehouse, automotive servicing, and Laundromat/dry cleaning. In addition to the historic use
of the southern adjacent property, a US Brownfields site was also identified in association with an
automobile radiator and glass repair shop. East of the subject site, historical operation of steel
manufacturing, automobile servicing, and a photo finishing laboratory were identified. The historic
operations conducted on the southern adjacent property as well as to the east of the subject site are
considered to represent Recognized Environmental Conditions (RECs).
Based on the initial findings of the Phase I ESA, ECS was contracted to conduct a soil and groundwater
assessment of the subject site in tandem with the Phase I ESA. Subsequent to the completion of the initial
soil and groundwater assessment, a supplemental groundwater assessment was conducted. The scope of
the initial soil and groundwater assessment as well as the supplemental groundwater was determined
based communications between Mr. Kenneth Manell with Dimensional Funds Advisors and Mr. Brian
Olin and Ms. Britney Barnes with ECS. The initial groundwater and soil sampling activities were
conducted on March 9, 2016 and the supplemental groundwater sampling activities were conducted on
April 14, 2016.
A photographic log is included as Appendix A.
2.0 SCOPE OF SERVICES
The initial groundwater and soil assessment consisted of the advancement of six soil borings for the
collection of soil samples for laboratory analysis and the installation of four temporary monitoring wells
for the collection of groundwater samples. The supplemental groundwater assessment included the
installation of four temporary monitoring wells, collection of groundwater samples for laboratory
analysis, and surveying of the supplemental temporary monitoring wells to an arbitrary site datum. The
subcontractor used for the soil sampling and temporary well installation activities was 3D
Environmental Investigations. The information below provides a summary of the scope of services that
were implemented for the soil and groundwater assessment.
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
2
2.1 Public Utility Clearance
Prior to commencing with field activities, ECS contacted the state’s public utility services, North Carolina
public utility location service, to locate and mark public utilities at the site. Required separation
distances between subsurface activities and marked utilities (typically 30-inches) were maintained
during the field activities.
2.2 Physical Setting and Hydrogeology
As determined from the USGS Topographical North Charlotte East, North Carolina dated 2015, the
subject site is situated between approximately 720 and 770 feet above mean sea level with topography
sloping to the southwest (Figure 1). No water bodies are depicted on the site. Based on a review of the
topographic map and observations of general area and site topography, surface run-off would be
expected to flow to the southwest towards Irwin Creek with properties to the east-northeast
considered to be topographically upgradient.
The subject site is situated in the Piedmont Physiographic Province. The soils encountered in this area
are the residual product of in-place chemical weathering of rock presently underlying the site and/or
historic depositional events. In general, shallow unconfined groundwater movement within the
overlying soils is controlled largely by topographic gradients. However, as the groundwater percolates
downward, it becomes controlled by the subsurface geologic conditions. Thus, the direction of
groundwater movement in the deeper aquifers may not be consistent with the reflecting topography.
Recharge occurs primarily by infiltration along higher elevations and typically discharges into streams or
other surface water bodies. The elevation of the shallow water table is transient and can vary with
seasonal fluctuations in precipitation. Movement of shallow groundwater is generally from higher to
lower elevations.
2.3 Geoprobe® Drilling Services
The soil and groundwater sampling was performed using Geoprobe® (direct push) drilling in
combination with the installation of 1-inch temporary monitoring wells. The Geoprobe® consists of
hydraulic jack-mounted equipment on an all-terrain vehicle (ATV). The Geoprobe® is capable of driving
various forms of groundwater, soil, and soil-gas sampling probes into the ground to depths equivalent
of auger refusal.
2.4 Initial Temporary Monitoring Well Installation, Soil, and Groundwater Sampling
On March 9, 2016, six soil borings were advanced for the collection of soil samples, SB-01 through
SB-06, and four temporary monitoring wells were installed for the collection of groundwater samples,
TW-01 through TW-04. Soil samples SB-01 through SB-04 were collocated in conjunction with
temporary monitoring wells TW-01 through TW-04, respectively. On April 14, temporary monitoring
wells TW-05 through TW-08 were installed. The approximate location of the soil borings and temporary
monitoring wells is shown on Figure 2.
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
3
Soil boring and temporary well SB/TW-01 was advanced on the eastern portion of the site immediately
outside the eastern side of the existing building. Soil boring SB/TW-02 was advanced on the
southeastern property boundary adjacent to South Tryon Street. These locations are on the upgradient
portion of the site. Soil boring and temporary well SB/TW-3 was advanced on the downgradient
southwestern property boundary and soil boring and temporary well SB/TW-04 was advanced on the
northwestern portion of the site outside the northwestern side of the existing building. Soil boring
SB-05 was advanced on the northern portion of the building outside a roll-up door and soil boring SB-06
was advanced on the eastern side of the building outside another roll-up door.
The soil samples were collected by hydraulically driving a five-foot long, 1.5-inch soil sampling probe
into the soil. The soil sampling probe is lined with a disposable clear plastic tube, which is replaced with
each five-foot interval. After the probe was driven, the clear plastic tube filled with soil was removed
from the probe. The clear plastic tube was then cut open for visual classification and screening for
relative levels of volatile organic vapors using a field screening instrument, a photo ionization detector
(PID). Volatile organic vapors were not detected with the PID and visual evidence of staining of the soil
was not observed in the soil at the six soil boring locations. One soil sample was collected from each of
the original six soil borings. The sample depths varied at each location; however, soil samples collected
in close proximity to the building were focused with the top five to seven feet below the ground surface
in an effort to assess for surficial releases. The sample depth is summarized on Table 1 provided in
Section 3.1 (Soil Sample Results).
Prior to advancing each boring, the down hole equipment and Geoprobe® drill rig and tooling were
decontaminated utilizing a high pressure steam cleaner that utilized municipal water. The down hole
equipment and drill rig were decontaminated to prevent cross-contamination between the soil boring
and temporary well locations.
The temporary monitoring wells were constructed with 1-inch schedule 40 PVC casing with a 10 foot
section of 0.01-inch machine slotted screen. The screened interval was installed to a depth of five to
seven feet into the top of the water table, as determined during drilling. The screened interval of each
of the temporary wells is summarized in Table 2 provided in Section 3.2 (Groundwater Sample Results).
The borehole annulus around the well screen was backfilled with clean silica filter sand to
approximately 2 feet above the top of the well screen. The water levels within the temporary
monitoring wells were allowed to equilibrate for several hours prior to collection of the groundwater
samples.
The groundwater samples were collected from the temporary monitoring wells by pumping the
groundwater to the surface with a peristaltic pump through Teflon, dedicated sampling tubing at each
sampling location. Prior to the collection of the groundwater samples, approximately five gallons of
groundwater was purged from each temporary monitoring well.
The sampler collected each soil and groundwater sample while wearing a new pair of disposable nitrile
gloves and placed the samples into laboratory prepared containers. The sample containers were labeled
with ECS project number, sample identification, sample date and time, and requested analytical
analysis. The containers were placed into protective packaging material and placed into a cooler with
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
4
ice to maintain the samples at approximately 4° Celsius (C°). The samples were submitted to a North
Carolina certified laboratory, Prism Laboratories, Inc., for chemical analysis for volatile organic
compounds (VOCs) using EPA Method 8260 and semi-volatile organic compounds (SVOCs) using EPA
Method 8270.
ECS maintained proper chain-of-custody (COC) procedures throughout the sample collection and
transportation process for the groundwater samples. Copies of the COCs are included with the
laboratory analytical data provided in Appendix B.
Following the completion of the sampling activities, the temporary monitoring wells were removed and
the boreholes were backfilled with bentonite to just below the ground surface.
2.5 Supplemental Temporary Monitoring Well Installation and Groundwater Sampling
On April 14, 2016, temporary monitoring wells TW-05 through TW-08 were installed and sampled.
Temporary monitoring wells TW-05 through TW-08 were installed at locations surrounding the initial
temporary well TW-03 and at other positions south of the existing building. These wells were installed
in an effort to further delineate the constituents detected during the initial assessment, to understand
the direction of groundwater flow, and attempt to identify the source of the constituents detected in
the groundwater during the initial assessment. The approximate location of these temporary
monitoring wells is shown on Figure 2.
In general, the temporary monitoring wells were installed and sampled consistent with the initial
assessment, as described above. Groundwater samples collected from the temporary monitoring wells
were submitted to Prism Laboratories, Inc. for analysis of VOCs using EPA Method 8260. Approximately
24-hours following the installation and sampling of the temporary monitoring wells, the depth to
groundwater was gauged. The ground surface and top of well casing were surveyed to an arbitrary site
datum to facilitate the ability to calculate groundwater elevations and assess groundwater flow
direction.
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
5
3.0 SAMPLE RESULTS
The following provides a summary of the laboratory analytical results for both the soil and groundwater
samples collected. The laboratory analytical data is provided in Appendix B.
3.1 Soil Sample Results
Laboratory analysis of the soil samples SB-01, SB-05, and SB-06 detected one VOC, acetone, at
concentrations above the laboratory reporting limit. Acetone is a common laboratory artifact is not
believed to represent site conditions. Laboratory analysis did not detected VOCs in the remaining soil
samples, SB-02, SB-03, or SB-04. Laboratory analysis did not detected SVOCs in the soil samples.
The table below provides a summary of the sample depths and concentrations of acetone detected by
the laboratory.
Table 1
Soil Sample Results
Parameter SB-01 SB-02 SB-03 SB-04 SB-05 SB-06 NC IHSB
PRSG Sample
Depth
4-5
ft bgs
10-11
ft bgs
6-7
ft bgs
8-9
ft bgs
3-4
ft bgs
3.5-4.5
ft bgs
Acetone 0.037 J BRL BRL BRL 0.13 0.032 J 12,000
Remaining VOCS BRL BRL BRL BRL BRL BRL --
SVOCS BRL BRL BRL BRL BRL BRL --
Concentrations reported in mg/kg
Comparison Criteria = North Carolina Division of Waste Management IHSB Preliminary Soil Remediation Goal (PSRG)
IHSB = Inactive Hazardous Sites Branch
Ft bgs = feet below the ground surface
BRL= Below Reporting Limit
J = Estimated concentration above the laboratory detection limit but below the laboratory reporting limit.
3.2 Groundwater Sample Results & Groundwater Flow
Laboratory analysis of the groundwater samples detected acetone in one sample, TW-03, and 1,1-
dichlorotehylene (1,1-DCE) and tetrachloroethylene (PCE) in five samples, TW-01, TW-03, TW-05,
TW-06, and TW-07 at concentrations above the laboratory reporting limits. The detected
concentrations of acetone and 1,1-DCE were below their respective North Carolina Department of
Environmental Quality 2L Groundwater Quality Standards (NC2LGWQS). The detected concentration of
PCE was below the NC2LGWQS in groundwater samples collected from TW-01, TW-06, and TW-07;
however, the detected concentrations of this constituent exceed the NC2LGWQS in groundwater
samples TW-03 and TW-05. Additionally, trichloroethylene (TCE) was detected in samples collected
from TW-05, TW-06, and TW-07 at concentrations above the laboratory reporting limits and was above
the NC2LGWQS in the sample collected from TW-05.
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
6
In addition to the comparison to the NC2LGWQS, the analytical data for the groundwater samples were
also compared to the North Carolina Division of Waste Management (NC DWM) Vapor Screening Levels
(VSL) for a residential and non-residential scenario. Neither 1,1-DCE nor PCE were detected at
concentrations above either the residential or non-residential VSLs. TCE was detected a concentration
above the residential VSL in the samples collected from temporary well TW-05, TW-06, and TW-07,
however, with the exception of TW-05, the concentrations were below the non-residential VSL for this
constituent.
The tables below provide a summary of the temporary well screened intervals, depth to groundwater,
groundwater elevation (where applicable) and constituent concentrations detected by the laboratory
for each of the sampling events – the initial groundwater sample results are provided on Table 2
(below) and the supplemental groundwater sample results are provided on Table 3 (below).
As previously discuss, the depth to groundwater was measured in the four supplemental monitoring
wells approximately 24-hours following their installation. The ground surface and the top of the well
casing was also surveyed to a site datum and elevations of the well casing were used to calculate the
groundwater elevations in the supplemental monitoring well set. Based on the depth to water and
surveyed top of casing elevation, the lowest groundwater elevation was calculated to be at TW-06 and
the highest groundwater elevation was calculated to be at TW-05. Based on the calculated
groundwater elevations in each of the four wells, TW-05 through TW-08, it appears that groundwater
may be flowing to the north toward TW-06, as shown on Figure 3.
Table 2
Groundwater Sample Results – March 19, 2016
Parameter TW-01 TW-02 TW-03 TW-04
NC2L
GWQS
NC DMW
VSL
Residential/
Non-Residential
Screened Interval (ft bgs) 15-25 8-18 13-23 15-25
Depth to Groundwater 7.0 5.75 14.2 15.1
Acetone BRL BRL 4.3 J BRL 600 4,520,000/19,000,000
1,1-Dichloroethylene 0.6 BRL 2.4 BRL 350 39.1/164
Tetrachloroethylene 0.69 BRL 1.3 BRL 0.7 11.5/48.4
Remaining VOCs BRL BRL BRL BRL -- --
SVOCs BRL BRL BRL BRL -- --
Concentrations reported in ug/L
North Carolina Department of Environmental Quality 2L Groundwater Quality Standard
North Carolina Division of Waste Management Vapor Screening Level
Depth to water is measured in feet below the top of the ground surface
Ft bgs – feet below the ground surface
BRL- Below Reporting Limit
J – Estimated concentration above the laboratory detection limit but below the
laboratory reporting limit
Bold – concentration is above the 2LGWQS
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
7
Table 3
Groundwater Sample Results – April 14, 2016
Parameter TW-05 TW-06 TW-07 TW-08
NC2L
GWQS
NC DMW
VSL
Residential/
Non-Residential
Screened Interval (ft bgs) 13-23 13-23 13-23 13-23
Depth to Groundwater 9.95 16.15 9.36 17.01
Top of Screen Elevation 91.64 94.12 96.05 101.22
Groundwater Elevation 81.69 77.97 86.69 84.21
1,1-Dichloroethylene 4.0 1.0 0.89 BRL 350 39.1/164
Tetrachloroethylene 1.9 0.68 0.62 BRL 0.7 11.5/48.4
Trichloroethylene 11 2.6 2.8 BRL 3 1.04/4.35
Remaining VOCs BRL BRL BRL BRL -- --
Concentrations reported in ug/L
North Carolina Department of Environmental Quality 2L Groundwater Quality Standard
North Carolina Division of Waste Management Vapor Screening Level
Depth to water is measured in feet below the top of the ground surface
Ft bgs – feet below the ground surface
BRL- Below Reporting Limit
Bold – concentration is above the 2LGWQS
Italic – Concentration is above the Vapor Screening Level
4.0 FINDINGS AND CONCLUSIONS
Based on the results of this assessment, ECS concludes the following:
• Visual evidence of impacts was not observed in the soil samples collected and no constituents of
concern were detected at concentrations above the laboratory detection limits, with the exception
of acetone. It does not appear that soil has been adversely impacted by the operation of the Kee
Auto facility in the areas where samples were collected.
• Three chlorinated VOCs were detected in one or more of the groundwater samples collected, PCE,
TCE, and 1,1-DCE. PCE is a common dry cleaning chemical and is also used as a degreasing solvent.
Both TCE and 1,1-DCE are common degradation, or daughter products, of PCE.
• The highest chlorinated VOC concentrations were detected in temporary monitoring wells TW-03
and TW-05, which are located on the southwestern corner of the property. PCE was detected at a
concentration above the NC2LGWQS at both of these locations and TCE was detected at a
concentration above the NC2LGWQS at TW-05.
• Although TCE was detected at a concentration above the NC2LGWQS in the samples collected from
only one temporary well, the concentration of this constituent detected in wells TW-05, TW-06, and
TW-07 exceed the residential vapor screening level. In addition, the concentration of TCE detected
Soil and Groundwater Assessment Report
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project No. 49-1558A & A1
May 3, 2016
8
in TW-05 also exceeded the non-residential vapor screening level while the concentrations detected
in TW-06 and TW-07 were below this screening level.
• Although chlorinated VOCs were detected in the groundwater at other locations, the
concentrations were below their respective NC2LGWQS. In addition, constituent concentrations
detected in the temporary wells located in close proximity to the existing building were lower than
those detected at the southwestern corner of the property.
• Based on the spatial distribution of the chlorinated VOCs in the groundwater (Figure 4 and Figure 5)
and the direction of groundwater flow, it does not appear that the impacts are a result of historic or
current operations conducted at the site.
• The source of the chlorinated VOCs detected in the groundwater appears to be from an off-site
source located to the southwest of the site.
5.0 RECOMMENDATIONS
Based on the results of this assessment, ECS recommends the following:
• ECS does not recommend additional assessment at this time; however, depending on the end use of
the site (residential versus non-residential), consideration of a soil gas assessment to determine if a
vapor barrier may be needed prior to future construction activities may be warranted.
• ECS recommends that at copy of this report be provided to the current property owner.
6.0 QUALIFICATIONS OF REPORT
The activities and evaluative approaches used in this assessment are consistent with those normally
employed in environmental assessment projects of this type. Our evaluation of site conditions has been
based on our understanding of the site project information and the data obtained during our field
activities. This report was prepared for the express use of Dimensional Fund Advisors. Use of this report
by other individuals or companies implies their acceptance of the General Conditions of Service of the
original contract.
SOURCE:
USGS TOPOGRAPHIC MAP
NORTH CHARLOTTE EAST NORTH CAROLINA
QUADRANGLE
DATED 2013
SCALE:
1-inch = 1500-feet
FIGURE 1
SITE TOPOGRAPHIC MAP
KEE AUTO ASSEMBLAGE
1538 SOUTH TRYON STREET
CHARLOTTE, MECKLENBURG COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49:1558 A & A1
SITE
1’1,500’750’
SOURCE:
GOOGLE EARTH, DATED 2014
SCALE:
1-inch = ~ 100 feet
FIGURE 2
SAMPLE LOCATION MAP
KEE AUTO ASSEMBLAGE
1538 SOUTH TRYON STREET
CHARLOTTE, MECKLENBURG COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49:1558 A & A1
TW-01
APPROXIMATE LOCATION OF TEMPORARY WELL,
GROUNDWATER AND SOIL SAMPLE
APPROXIMATE SITE BOUNDARY
LEGEND
TW-03/SB-03
TW-01/SB-01
SITE
US BROWNFIELDS SITE
1’90’45’
TW-04/SB-04
SB-05
SB-06
TW-02/SB-02
TW-05
TW-06
TW-07
TW-08
SB-06
APPROXIMATE LOCATION OF NEW TEMP WELL
TW-05
APPROXIMATE LOCATION OF SOIL SAMPLE ONLY
FIGURE 3
GROUNDWATER ELEVATION MAP
KEE AUTO ASSEMBLAGE
1538 SOUTH TRYON STREET
CHARLOTTE, MECKLENBURG COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49:1558 A & A1
SOURCE:
GOOGLE EARTH, DATED 2014
SCALE:
1-inch = ~ 100 feet
TW-01
APPROXIMATE LOCATION OF TEMPORARY WELL,
GROUNDWATER AND SOIL SAMPLE
APPROXIMATE SITE BOUNDARY
LEGEND
TW-03/SB-03
TW-01/SB-01
SITE
US BROWNFIELDS SITE
1’90’45’
TW-04/SB-04
SB-05
SB-06
TW-02/SB-02
TW-05
(91.64)
TW-06
(77.97)
TW-07
(86.69)
TW-08
(84.21)
SB-06
APPROXIMATE LOCATION OF NEW TEMP WELL
TW-05
APPROXIMATE LOCATION OF SOIL SAMPLE ONLY
GROUNDWATER ELEVATION
FEET BELOW TOP OF WELL CASING
(91.64)
90.0
85.0
80.0
75.0
80.075.0
85.0
90.0
GROUNDWATER CONTOUR90.0
FIGURE 4
DISTRIBUTION OF TETRACHLOROETHYLENE
IN GROUNDWATER
KEE AUTO ASSEMBLAGE
1538 SOUTH TRYON STREET
CHARLOTTE, MECKLENBURG COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49:1558 A & A1
SOURCE:
GOOGLE EARTH, DATED 2014
SCALE:
1-inch = ~ 100 feet
TW-01
APPROXIMATE LOCATION OF TEMPORARY WELL,
GROUNDWATER AND SOIL SAMPLE
APPROXIMATE SITE BOUNDARY
LEGEND
TW-03/SB-03
(1.3)
TW-01/SB-01
(0.63)
SITE
US BROWNFIELDS SITE
1’90’45’
TW-04/SB-04
(ND)
SB-05
SB-06
TW-02/SB-02
(ND)
SB-06
APPROXIMATE LOCATION OF SOIL SAMPLE ONLY
APPROXIMATE LOCATION OF NEW TEMP WELL
TW-05
TW-05
(1.9)
TW-06
(0.68)
TW-07
(0.62)
TW-08
(ND)
CONCENTRATION OF TETRACHLOROETHYLENE
IN UG/L (NC2L STANDARD 0.7 UG./L)
ND – NOT DETECTED
(1.9)
FIGURE 5
DISTRIBUTION OF TRICHLOROETHYLENE
IN GROUNDWATER
KEE AUTO ASSEMBLAGE
1538 SOUTH TRYON STREET
CHARLOTTE, MECKLENBURG COUNTY,
NORTH CAROLINA
ECS PROJECT NO. 49:1558 A & A1
SOURCE:
GOOGLE EARTH, DATED 2014
SCALE:
1-inch = ~ 100 feet
TW-01
APPROXIMATE LOCATION OF TEMPORARY WELL,
GROUNDWATER AND SOIL SAMPLE
APPROXIMATE SITE BOUNDARY
LEGEND
TW-03/SB-03
(ND)
TW-01/SB-01
(ND)
SITE
US BROWNFIELDS SITE
1’90’45’
TW-04/SB-04
(ND)
SB-05
SB-06
TW-02/SB-02
(ND)
TW-05
(11)
TW-06
(2.6)
TW-07
(2.8)
TW-08
(ND)
SB-06
APPROXIMATE LOCATION OF SOIL SAMPLE ONLY
APPROXIMATE LOCATION OF NEW TEMP WELL
TW-05
CONCENTRATION OF TRICHLOROETHYLENE
IN UG/L (NC2L STANDARD 3 UG/L)
ND – NOT DETECTED
(11)
PHOTOGRAPH LOG
Kee Auto Assemblage
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project Number 49:1558A & A1
Photograph 1: View of the site looking southwest from South Tryon Street
Photograph 2: View of the soil boring and temporary well location SB/TW‐01
Photograph 3: View of soil boring and temporary well location SB/TW‐02 (upgradient southeast corner of property)
Photograph 4:View of soil boring and temporary well location SB/TW‐03 (downgradient souwest corner of property)
PHOTOGRAPH LOG
Kee Auto Assemblage
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project Number 49:1558A & A1
Photograph 5: View of soil boring and temporary well location SB/TW‐04 (northwest portion of the building)
PHOTOGRAPH LOG
Kee Auto Assemblage
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project Number 49:1558A & A1
Photograph 6: View of area where soil boring SB‐05 was located (northern portion of building)
Photograph 7: View of location where soil boring SB‐06 was located
PHOTOGRAPH LOG
Kee Auto Assemblage
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project Number 49:1558A & A1
Photograph 8: View of southern adjoining property across South Tryon Street; facing southeast
Soil boring SB‐06
Photograph 9: View of temporary well location TW‐05
PHOTOGRAPH LOG
Kee Auto Assemblage
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project Number 49:1558A & A1
Photograph 10: View of temporary well location TW‐07
Photograph 11: View of temporary well location TW‐07
PHOTOGRAPH LOG
Kee Auto Assemblage
1538 South Tryon Street
Charlotte, Mecklenburg County, North Carolina
ECS Project Number 49:1558A & A1
Photograph 12: View of temporary well location TW‐08
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