19049_Regal_Mfg_Pre-Comp_Site_Assess_20020517

([; . .. . E)( eel Civil & tlJ: y Environmental
Associates, PLLC
May 17, 2002
Amber R. Lindon
Hydrogeological Technician II
NCDENR, Mooresville Regional Office
Division of Waste Management, UST Section
919 North Main Street
Mooresville, NC 28115
Re : Pre-Comprehensive Site Assessment Report
SERVCO No. 01414
1106 2nd Street NE
Hickory, North Carolina
NCDENR Incident No. 15678
EXCEL No. 21058
Dear Ms. Lindon:
302 South Church Street, Suite B
Gastonia, NC 28054
Telephone [phone]
Facsimile 704.853.3949
On behalf of Service Distributing Company, Inc., Excel Environmental Associates
is please to submit one copy of the Pre-Comprehensive Site Assessment Report
(CSA) for the above referenced site.
If you have any questions or comments, please contact me.
Sincerely yours ,
EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC
~;;;
M.T. Stanfort~
Project Engineer
p.c. Mr. Rick Smith -SERVCO, Albemarle
PRE-COMPREHENSIVE SITE
ASSESSMENT REPORT
SERVCO-HICKORY
1106 2nd STREET NE
HICKORY NORTH CAROLINA
Prepared for:
Mr. Rick Smith
Service Distributing Company, Incorporated
Post Office Box 3 1 0
Albemarle. NC 28001
May 17,2002
;;.Ell· A ··y
Excel Civil & Environmental Associates, PLLC
Post Office Box 61 72
Gastonia. North Carolina 2R056-6000
Telephone [phone]
Facsimile 704.853.3949
Pre-Comprehensive Site Assessment
Report
SERVCO No. 01414
1106 2ND STREET NE
HICKORY, CATAWBA COUNTY, NORTH CAROLINA
NCDENR INCIDENT No. 15678
Date Submitted:
May 17, 2002
Source of Release:
Former Gasoline & Diesel USTs
35.746r Latitude and 80.334r Longitude
Prepared For:
Service Distributing Company, Incorporated
Responsible Party-UST Owner
1024 North Second Street
Albemarle, NC 28001
Phone: [phone]
Attn: Rick Smith
Prepared By:
Excel Civil & Environmental Associates, PLLC
Post Office Box 6172
Gastonia, NC 28056
Phone [phone]
Report Certification: M. T. Stanforth, P.E., DEE
Section
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8 .0
9.0
10.0
11.0
12.0
TABLE OF CONTENTS
Name
Executive Summary
Site History and Source Characterization
Receptor Information & Offsite Potential Concerns
Regional Geology
Site Geology and Hydrogeology
Soil Sampling Results
Groundwater Sampling Results
Hydrogeological Investigation
Discussion
Conclusions and Recommendations
Limitations
References
LIST OF TABLES
Table 1
Table 2
Table 3
Table 4
-Soils Summary Data Table
-Groundwater Data Table
-Adjacent Property Owners
-Monitoring Well Data Table
LIST OF FIGURES
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
-Site Vicinity Map
-Site Plan
-Cross Section A-A'
-Cross Section B-B'
-Water Table Contour Map
-Benzene in Soils Map
-Naphthalene in Soils Map
-VPH in Soils Map
-Benzene in Groundwater Map
-BTEX in Groundwater Map
-MTBE in Groundwater Map
-Naphthalene in Groundwater Map
-EDB in Groundwater Map
-IPE in Groundwater Map
- 1 ,2-Dichloroethane in GW Map
-PCE in Groundwater Map
-TCE in Groundwater Map
-Lead in Groundwater Map
LIST OF APPENDICES
Page No.
1
3
4
5
5
6
6
6
7
8
9
10
Appendix A
Appendix B
Appendix C
-Soil Boring Logs & Monitoring Well Construction Diagrams
-Laboratory Reports & Chain of Custody Forms
-Aqtesolv Input Data & Response Curves
Pre-Comprehensive Site Assessment Report
1106 2"d Street NE
Hickory, North Carolina
1.0 Executive Summary
SERVCO No. 01414
Page No.1
Excel Civil & Environmental Associates, PLLC (Excel) was contracted by Service
Distributing Company, Incorporated (SERVCO) to complete a Comprehensive Site
Assessment (CSA) for their SERVCO Station No. 01414 located at 1106 2nd Street NE,
Hickory, Catawba County, North Carolina (Figure 1 ). Two (2) regulated Underground
Storage Tanks (USTs) storing gasoline were removed from the subject property in July
1994.
In response to a UST removal project at the subject facility, SERVCO contracted Matrix
Environmental Technologies (Matrix) of Charlotte, North Carolina in July 1994 to
complete a UST Closure Assessment Report for an upgrade project at the subject
property. A total of two steel UST's were removed as part of one excavation during the
closure activities. The soil that was excavated from the UST area was returned to the
tank pit with additional gravel to complete the backfill. A total of seven (7) soil samples
were collected from around the UST area, underneath the product lines, and directly
beneath the dispenser pumps on July 25, 1994. A review of the results reportedly
indicated soil sample results with elevated TPH-GRO and TPH-DRO levels above
agency action levels.
In response to an April 24, 2001 Notice of Regulatory Requirements from the NCDENR,
Excel was contracted by SERVCO to complete a Limited Site Assessment. The LSA
activities conducted by Excel during May through October 2001, included the completion
of six (6) monitor wells, three (3) soil borings, collection of liquid level data, potable well
survey, soil and groundwater sampling with associated laboratory analysis and the
completion of a Limited Site Assessment Report. Soil samples were collected from
around the former UST area and former dispenser islands and analyzed using EPA
Method 8260 Volatile Organics and MADEP VPH. Groundwater samples were collected
from all six (6) monitoring wells and analyzed using EPA Methods 601/602 extended,
EBD by EPA Method 504.1, Lead by EPA Method 3030c and MADEP VPH. The results
of the analyses indicated soil contamination within the vicinity of the former UST area
located on the western section of the property. The constituent levels for the soil
samples collected were found to be below Residential MSCCs. Groundwater
contamination was noted in monitoring wells MW-1 through MW-5 above the applicable
15A NCAC 2L regulatory levels with levels of benzene and EDB exceeding Gross
Contamination Levels in MW-2 located on the western section of the property. A Phase
II Limited Site Assessment Report was submitted to the North Carolina Department of
Environment and Natural Resources (NCDENR), Division of Waste Management
(DWM), Mooresville Regional Office on October 30, 2001. Upon review, NCDENR
requested additional investigations, to include the preparation of a Comprehensive Site
Assessment (CSA) Report.
Excel was contracted by SERVCO to complete a receptor survey at the above
referenced facility. On May 7, 2002, Excel conducted a second receptor survey at the
above referenced site. As result of the survey, no potable wells or surface water bodies
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 Z'd Street NE
Hickory, North Carolin<J
SERVCO No. 01414
Page No.2
were found to be located within were located within the search radius of 1,500 feet
surrounding the subject property (refer to Figure 1 ). No other surface waters or
potential receptors were observed to be located within 1 ,500 feet of the subject property.
Excel was further contracted by SERVCO to complete the Comprehensive Site
Assessment (CSA) activities at the subject site. The CSA activities involved construction
of four (4) Type II monitoring wells, four (4) Temporary monitoring wells and the
installation of six (6) additional soil borings at various locations on the subject property
and on adjacent properties to the west and north (Figure 2). Soil samples were
collected from select drilling locations and analyzed using EPA Method 8260 Volatile
Organics and MADEP VPH. Groundwater samples were collected from the newly
installed monitoring wells and analyzed using EPA Methods 601/602 extended, EDB by
EPA Method 504.1, Lead by EPA Method 3030c and MADEP VPH.
The extent of soil contamination for benzene is defined (refer to Figure 6) to a small
area located on the northwestern corner of the subject property. The areal extent of
benzene is estimated at approximately 533 square feet. The extent of soil contamination
for naphthalene is defined (refer to Figure 7) to a small area located on the northwestern
corner of the subject property. The areal extent of naphthalene is estimated at
approximately 690 square feet. The extent of soils contamination for MCDEP volatile
petroleum hydrocarbons (aromatics fraction only, refer to Figure 8) is defined to the
northwestern section of the subject property, encompassing an area of approximately
1,090 square feet. The soil contamination mentioned above addresses the
contamination levels above Soil-to-Water Maximum Soil Contaminant Concentrations
(MSCCs ). No samples collected during any of the assessment phases exceeded the
land use classification levels for Industrial/Commercial MSCCs.
The extent of groundwater contamination for benzene exceeding the Gross
Contamination Levels (GCLs) (refer to Figure 9) is defined to an area encompassing the
western section of the subject property. The areal extent of benzene above GCLS is
approximately 2,300 square feet. The extent of groundwater contamination for EDB
exceeding the Gross Contamination Levels (GCLs) (refer to Figure 13) is defined to an
area encompassing the northwestern section of the subject property. The areal extent
of EDB above GCLs is approximately 5,000 square feet. The extent of groundwater
contamination for PCE (tetrachloroethene) exceeding GCLs (refer to Figure 16) is
defined to an area encompassing the northeastern section of the subject property.
Based on information collected as part of this assessment, this constituent enters the
site from an upgradient contaminant source from the northeast and extends to the
center of the subject property. The areal extent of dissolved PCE located onsite above
GCLs is approximately 5,000 square feet. The predominant shallow groundwater flow
across the site is in a southerly direction.
Due to potential offsite sources and denial of offsite access for the assessment of
downgradient properties, Excel has completed a Pre Comprehensive Site Assessment,
which addresses onsite and some limited offsite soil and groundwater constituents. The
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 2"d Street NE
Hickory, North Carolina
SERVCO No. 01414
Page No.3
full horizontal extent of groundwater contamination above NCAC 2L standards at this
time cannot be determined.
Due to the levels of benzene and EDB exceeding 1,000 times the federal drinking water
standard, the release has been classified as an "intermediate risk" site. The land use at
the subject facility has been classified as Industrial/Commercial by the NCDENR.
2.0 Site History and Source Characterization
The subject property is currently an active SERVCO convenience store. In July 1994,
two (2) regulated Underground Storage Tanks (USTs) storing gasoline were removed
from the subject property. In response to the upgrade project at the subject facility,
SERVCO contracted Matrix Environmental Technologies (Matrix) of Charlotte, North
Carolina in July 1994 to complete a UST Closure Assessment Report for an upgrade
project at the subject property. A total of two steel UST's were removed as part of one
excavation during the closure activities. The soil that was excavated from the UST area
was returned to the tank pit with additional gravel to complete the backfill. A total of
seven (7) soil samples were collected from around the UST area, underneath the
product lines, and directly beneath the dispenser pumps on July 25, 1994. A review of
the results reportedly indicated soil sample results with elevated TPH-GRO and TPH-
DRO levels above agency action levels.
In response to an April 24, 2001 Notice of Regulatory Requirements from the NCDENR,
Excel was contracted by SERVCO to complete a Limited Site Assessment. The LSA
activities conducted by Excel during May through October 2001, included the completion
of six (6) monitor wells, three (3) soil borings, collection of liquid level data, potable well
survey, soil and groundwater sampling with associated laboratory analysis and the
completion of a Limited Site Assessment Report. Soil samples were collected from
around the former UST area and former dispenser islands and analyzed using EPA
Method 8260 Volatile Organics and MADEP VPH. Groundwater samples were collected
from all six (6) monitoring wells and analyzed using EPA Methods 601/602 extended,
EBD by EPA Method 504.1, Lead by EPA Method 3030c and MADEP VPH. The results
of the analyses indicated soil contamination within the vicinity of the former UST area
located on the western section of the property. The constituent levels for the soil
samples collected were found to be below Residential MSCCs. Groundwater
contamination was noted in monitoring wells MW-1 through MW-5 above the applicable
15A NCAC 2L regulatory levels with levels of benzene and EDB exceeding Gross
Contamination Levels in MW-2 located on the western section of the property. A Phase
II Limited Site Assessment Report was submitted to the North Carolina Department of
Environment and Natural Resources (NCDENR), Division of Waste Management
(DWM), Mooresville Regional Office on October 30, 2001. Upon review, NCDENR
requested additional investigations, to include the preparation of a Comprehensive Site
Assessment (CSA) Report.
The North Carolina Department of Environment and Natural Resources, Division of
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 Z'd Street NE
Hickory, North Carolina
SERVCO No. 01414
Page No.4
Waste Management (DWM), based on the above reports, classified the release as an
"intermediate risk" and the land use classification as Industrial/Commercial. The scope
of work during preparation of the CSA included the installation of additional monitoring
wells upgradient and cross gradient of the former USTs and pump island areas to
determine the horizontal and vertical extent of contamination.
3.0 Receptor Information & Offsite Potential Concerns
On May 7, 2002, Excel conducted a receptor survey at the above referenced site. As
result of the survey, no potable wells or surface water bodies were located within the
search radius. No other surface waters or potential receptors were observed to be
located within 1,500 feet of the subject property.
No known wellhead protection areas are located within 1 ,500 feet of the source area.
The subject site is also not located within the Coastal Plain Physiographic Region.
The area within 1 ,500 feet of the site is predominately commercial and residential
development. Surrounding properties are zoned Commercial and Industrial. The facility
is located at the intersection of 2nd Street NE and 11th Avenue NE within the city limits of
Hickory, North Carolina. 2nd Street tracks in a north-south direction along the western
perimeter of the subject property. Directly west across 2nd Street are commercial
properties. Bounding the property to the north is an Exxon gasoline station and an
industrial establishment. To the east of the property is a parking lot part of the industrial
facility located to the north. 11th Avenue bounds the property to the south tracking in an
east-west direction. South across 11th Avenue is a commercial property. In addition,
residential areas are located near the site to the west. Table 3 summarizes the adjacent
property owners.
Excel called for three (3) offsite Right-of-Entry Requests anticipating access onto
properties to the north, south and west for the installation of monitoring wells. One of
the three requests were formally denied, the denied requests are as follows; Heritage
Square Shopping Center (property located to the south, hydrogeologically
downgradient).
During CSA activities Excel explored other possible related source areas located offsite.
Based on a field reconnaissance, the property located to the north and northeast are
comprised of the following:
• Viewmont Exxon Service Center, located at 1126 2nd Street NE, is situated to
the north of the subject property hydrogeologically upgradient. The property is
an active convenience store with several USTs and associated system and also
contains several ASTs used for waste oil and other chemical storage utilized by
the automobile service center. During the course of the CSA investigation one
( 1) Type II monitoring well was placed on this property under the permission of
the property owner. The analytical results from the groundwater sample collected
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 2"d Street NE
Hickory, North Carolina
SERVCO No. 01414
Page No.5
revealed several hydrocarbon constituents above the applicable 2L standards.
• Regal Manufacturing Company, located at 212 1 ih Avenue NE, is situated to
the north of the subject property hydrogeologically crossgradient. The property
is an active industrial facility that manufactures covered elastic yarns and
textured yarns for knitted of woven stretch fabrics. During the course of the CSA
investigation several wells (MW-6, TMW-1, TMW-2 and TMW-4) were placed on
the eastern section of the SERVCO parcel. Samples collected from these wells
indicated constituents PCE (tetrachloroethene) and TCE (trichloroethene) above
GCL levels, which are commonly associated with dry cleaning facilities and
textile processes.
4.0 Regional Geology
The subject site is located in the Inner Piedmont Physiographic Province. This area of
the Inner Piedmont consists of metamorphic rocks including mica schist, biotite schist
and gneiss. The 1985 USGS Geologic Map of North Carolina indicates this area as
being underlying with metamorphic granitic rock.
5.0 Site Geology and Hydrogeology
During the completion of soil borings and monitoring wells, a reddish brown and orange,
loose, silty clay was observed to a depth of approximately 25 feet below grade level
(fbgl). The type of soils observed at the drilling locations appear consistent with the
surficial sediments common for this area. Figures 3 and 4 provide cross-sectional
details of the near surface geology beneath the site.
It was noted during the installation of the monitoring wells that groundwater was
encountered at depths ranging from 38 to 40 fbgl. The well elevation survey was
performed relative to a local benchmark at the site (MW-2) with an assumed elevation of
100.00 feet. Static water levels were recorded using an electronic water indicator. Table
4 shows the well construction data, while a water table contour map is provided as
Figure 5. Based on the measured groundwater elevations, the predominant
groundwater flow direction across the subject area is towards MW-4 and MW-5, in
southerly direction.
From the results of the two slug tests conducted at the site (see Section 8), the
hydraulic conductivity was estimated to be approximately 0.392 ft/day (average of MW-3
and MW-5). The average groundwater velocity was calculated to be approximately
0.003 ft/day (1.095 ft!year). As such, the lateral migration of dissolved petroleum
contaminants does not appear to be impeded by the local geological/hydrogeological
conditions.
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 Z'd Street NE
Hickory, North Carolina
6.0 Soil Sampling Results
SERVCO No. 01414
Page No.6
As described earlier, in order to approximate the extent of soil contamination at the site,
six (6) soil borings were completed at the site during CSA activities. The borings were
extended to 13-15 fbgl. Soil samples were collected from each boring and analyzed for
EPA Method 8260 Volatile Organics and MADEP VPH. Table 1 summarizes the soil
results collected during both LSA and CSA activities. Samples were analyzed by Test
America, Incorporated of Nashville, Tennessee. Laboratory results reveal that no
samples collected were above either Residential or Industrial/Commercial Maximum Soil
Contaminant Concentrations (MSCCs). The complete laboratory results are included in
Appendix B, with the exception of test results from LSA activities.
7.0 Groundwater Sampling Results
Groundwater quality samples were collected on March 6, May 2 and 7, 2002 utilizing
dedicated bailers. The groundwater samples were submitted to Test America,
Incorporated of Nashville, Tennessee and Environmental Science Corporation of Mt.
Juliet, Tennessee and were analyzed for EPA Method 601/602 extended, MADEP VPH,
EDB by EPA Method 504.1 and Lead by EPA Method 3030c.
From the samples collected during the CSA activities only one sample (TMW-4)
revealed the presence of tetrachloroethene above Gross Contamination Levels (GCLs).
The results of the analyses indicated the presence of dissolved petroleum contaminants
above the 15A NCAC 2L regulatory limits in all monitoring wells except TMW-3. Table 2
summarizes the groundwater laboratory results. The complete laboratory results are
included in Appendix B, with the exception of results from LSA activities.
Based on above findings, the lateral extent of the groundwater contamination (at levels
exceeding GCLs) appears to be primarily surrounding the area encompassing monitor
well MW-2 and extending to the southeast towards TMW-1 (Figure 9, 13 and 16). The
vertical extent of the contamination was estimated to be approximately 65 fbgl (VW-1 ).
8.0 Hydrogeological Investigation
Two rising-head slug tests were performed at the site (MW-3 and MW-5) to estimate the
aquifer properties at the site. The tests were conducted by submersing a PVC bailer in
the water column, allowing the water level to return to equilibrium, removing the filled
bailer (known volume), and measuring the water level as it returns to the equilibrium
point. The water level changes were measured as a function of time using an electronic
water-level meter.
Subsequently, the data from the tests was analyzed using AQTESOLV (Hydrosolve,
1998) by the Bouwer and Rice Slug Test Method (1976). The average value of hydraulic
conductivity (K) estimated by this program was 0.39 ft/day (MW-3 and MW-5). The data
tables and the response curves area are included in the Appendix.
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 2"d Street NE
Hickory, North Carolina
SERVCO No. 01414
PageNo. 7
Assuming an effective porosity (n) of 0.40 (for silt), the rate of ground water movement
was computed using the following equation:
v = 15_dh
n dl
Where, V = velocity (ftlday)
K = hydraulic conductivity (0. 392 ftlday)
n =effective porosity [assumed to be 0.4, (40)%)]
dh =hydraulic gradient (approximately 0.003 ftlft)
dl
Using the above equation, the groundwater flow across the contaminated area is
estimated to be approximately 0.003 fUday or 1.095 ft/year.
9.0 Discussion
Based on the results of the site investigations performed at the Site to date (by Excel),
the extent of soil contamination (i.e. contaminant levels greater than the soil-to-
groundwater maximum concentrations) for benzene is defined (refer to Figure 6) to a
small area located on the northwestern corner of the subject property. The areal extent
of benzene is estimated at approximately 533 square feet. The extent of soil
contamination for naphthalene is defined (refer to Figure 7) to a small area located on
the northwestern corner of the subject property. The areal extent of naphthalene is
estimated at approximately 690 square feet. The extent of soils contamination for
MCDEP volatile petroleum hydrocarbons (aromatics fraction only, refer to Figure 8) is
defined to the northwestern section of the subject property, encompassing an area of
approximately 1 ,090 square feet. No samples collected during any of the assessment
phases exceeded the land use classification levels for Industrial/Commercial MSCCs.
The extent of groundwater contamination for benzene exceeding the Gross
Contamination Levels (GCLs) (refer to Figure 9) is defined to an area encompassing the
western section of the subject property. The areal extent of benzene above GCLs is
approximately 2,300 square feet. The extent of groundwater contamination for EDB
exceeding the Gross Contamination Levels (GCLs) (refer to Figure 13) is defined to an
area encompassing the northwestern section of the subject property. The areal extent
of EDB above GCLs is approximately 5,000 square feet. The extent of groundwater
contamination for PCE (tetrachloroethene) exceeding GCLs (refer to Figure 16) is
defined to an area encompassing the northeastern section of the subject property.
Based on information collected as part of this assessment, this constituent enters the
site from an upgradient contaminant source from the northeast and extends to the
center of the subject property. The areal extent of dissolved PCE located onsite above
GCLs is approximately 5,000 square feet. The predominant groundwater flow across
the site is in a southerly direction.
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 Z'd Street NE
Hickory, North Carolina
SERVCO No. 01414
Page No.8
Due to potential offsite sources and denial of offsite access for the assessment of
downgradient properties, Excel has completed a Pre Comprehensive Site Assessment,
which addresses onsite and some limited offsite soil and groundwater constituents. The
full horizontal extent of groundwater contamination above NCAC 2L standards at this
time cannot be determined.
10.0 Conclusions and Recommendations
Based on the results of the site investigations performed at the Site to date, the extent
of the soil contamination appears to be confined within the vicinity of the former USTs
and associated dispenser island area with levels not exceeding industrial/commercial
MSCC's. The soil contamination encompasses at the most an area of approximately
1 ,090 square feet and extends to an approximate depth of 15 feet bgl in this area.
The extent of groundwater contamination for benzene exceeding the Gross
Contamination Levels (GCLs) (refer to Figure 9) is defined to an area encompassing the
western section of the subject property. The areal extent of benzene above GCLS is
approximately 2,300 square feet. The extent of groundwater contamination for EDB
exceeding the Gross Contamination Levels (GCLs) (refer to Figure 13) is defined to an
area encompassing the northwestern section of the subject property. The areal extent
of EDB above GCLs is approximately 5,000 square feet. The extent of groundwater
contamination for PCE (tetrachloroethene) exceeding GCLs (refer to Figure 16) is
defined to an area encompassing the northeastern section of the subject property.
Based on information collected as part of this assessment, this constituent enters the
site from an upgradient contaminant source from the northeast and extends to the
center of the subject property. The areal extent of dissolved PCE located onsite above
GCLs is approximately 5,000 square feet. The predominant groundwater flow across
the site is in a southerly direction.
Based on the results of the receptor survey completed by Excel on May 7, 2002 no
potable wells or surface water bodies were located within the search radius. No other
surface waters or potential receptors were observed to be located within 1,500 feet of
the subject property.
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 Z'd Street NE
Hickory, North Carolina
11.0 Limitations
SERVCO No. 01414
Page No.9
This report is based on a limited number of soil and groundwater samples and chemical
analyses. The conclusions presented in this report are based only on the observation
made during this investigation and on data provided by others. The report presents a
description of the subsurface conditions observed at each boring location during this
investigation. Subsurface conditions may vary significantly with time, particularly with
respect to groundwater elevations and quality. Conclusions and recommendations set
forth herein are applicable only to the observations, facts and conditions described at
the time of this report.
In performing its professional services, Excel uses that degree of care and skill
exercised under similar circumstances by members of the environmental profession
practicing at the same or similar locality under similar conditions. The standard of care
shall be judged exclusively as of the time these services are rendered and not according
to later standards. Excel makes no express or implied warranty beyond its conformance
to this standard. Excel shall not be responsible for conditions or consequences arising
from the relevant facts that were concealed, withheld or not fully disclosed for this
report. Excel believes that all information contained in this report is factual, but no
guarantee is made or implied.
Excel Civil & Environmental Associates, PLLC
Pre-Comprehensive Site Assessment Report
1106 Z'd Street NE
Hickory, North Carolina
12.0 References
SERVCO No. 01414
Page No.10
Driscoll, Groundwater and Wells, 2nd edition, (St. Paul, Minnesota, Johnson Division), p.
219.
R. Perry and C. Chilton, Chemical Engineer's Handbook, 5th edition, (New York:
McGraw Hill, Inc. 1973), p. 5-18.
Tank Closure Assessment Report for Service Distributing Company, Facility No . 01414,
Hickory, NC, Matrix Environmental Technologies, Inc., August 29 , 1994 ..
Limited Site Assessment Report for the SERVCO No. 01414, Hickory, NC, Excel Civil &
Environmental Associates, PLLC, August 3, 2001.
Limited Site Assessment Report-Revised for the SERVCO No. 01414, Hickory, NC,
Excel Civil & Environmental Associates, PLLC, October 30, 2001.
Excel Civil & Environmental Associates, PLLC
LIST OF TABLES
Table 1 -Soils Summary Data Table
Table 2 -Groundwater Data Table
Table 3 -Adjacent Property Owners
Table 4 -Monitoring Well Data Table
:• ~ Sample Location . •· ~1:!: 8.-1./3'-!?'
DATE < . ,., ~':.i ~ ~0/17101 t.
Constituent r~r:i~1.~;~i.~~~t~~JJ.~~:~~~
VPH C5 -C8 Aliphatics < 5.34
VPH C9 -C12 Aliphatics < 5.34
VPH C9 -C10 Aromatics < 5.34
BENZENE < 0.0029
TOLUENE < 0.0029
ETHYLBENZENE < 0.0029
XYLENES < 0.0029
MTBE < 0.0029
NAPHTHALENE < 0.0073
ACETONE < 0.0728
sec-BUTYLBENZENE < 0.0029
cis-1 ,2-DICHLORETHENE < 0.0029
trans-1 ,2-DICHLORETHENE < 0.0029
ISOPROPYLBENZENE < 0.0029
4-ISOPROPYL TOLUENE < 0.0029
n-PROPYLBENZENE < 0.0029
TRICHLOROETHENE < 0.0029
1 ,2,4-TRIMETHYLBENZENE < 0.0029
1 ,3,5-TRIMETHYLBENZENE < 0.0029
VINYL CHLORIDE < 0.0029
NOTES:
VPH-Volatile Petroleum Hydrocarbons
Data in mglkg
a~1 /13'~15~
k st3oi01<' ~.
~~i~~~r;;r~~~£i~
12.4
55.6
81 .9
< 0.119
0.1964
0.4524
6.929
< 0.119
6.548
< 0.0804
0.5476
0.8274
0.0096
0.25
0.381
1.202
0.3333
22.14
6.607
1.187
MSCC-Maximum Soil Contaminant Concentrations
MTBE-Methyl Tert-Butyl Ether
Table 1 -Soil Summary Data Table
SERVCO No. 01414
11 06 2"d Street N E
Hickory, North Carolina
. 8.:..1/23'~2~~ . 8-2 (.13'(1_5' ,8~3.18'~10' 8,.31 1.8'-20'
'10/17/01 5/30/01 -. ~ t.10/17/01 ~ ,, . 10/17/01,
~~'7~~f.~ ·';·~~:.'!;i_;~_;,;·· ~~,. ·~ ;\>~-~~:<"··~~,. ,, . 1~-'i®t!·fl~ ' • ~~$--.~i'-:,.. • ~;. .~~!'J,~~}t,~ :\:k.:':RJ. • • .... •~
< 8.27 < 6.30 < 7.91 < 8.91
2.4 < 6.30 < 7.91 < 8.91
< 8.27 < 6.30 < 7.91 < 8.91
< 0.0032 < 0.0025 < 0.0023 < 0.0036
0.033 < 0.0025 < 0.0023 < 0.0036
0.0038 < 0.0025 < 0.0023 < 0.0036
0.0175 < 0.0025 < 0.0023 < 0.0036
< 0.0032 0.0032 0.0051 0.01
0.0252 < 0.0062 < 0.0058 < 0.0089
< 2.976 < 0.0617 0.1211 < 0.0891
< 0.0032 < 0.0025 < 0.0023 < 0.0036
< 0.0032 < 0.0025 < 0.0023 < 0.0036
< 0.0032 < 0.0025 < 0.0023 < 0.0036
< 0.0032 < 0.0025 < 0.0023 < 0.0036
< 0.0032 < 0.0025 < 0.0023 < 0.0036
< 0.0032 < 0.0025 < 0.0023 < 0.0036
0.0195 < 0.0025 < 0.0023 < 0.0036
0.011 < 0.0025 < 0.0023 < 0.0036
0.0038 < 0.0025 < 0.0023 < 0.0036
< 0.0032 < 0.0025 < 0.0023 < 0.0036
8~3/28'.30'
. ·5/30/01 Industrial/Commercial
MSCCs ~i~Ji'!}1·~fi;>~~}:\>o}~11
< 5.36 24,528
< 5.36 245,280
< 5.36 12,264
< 0.0023 200
< 0.0023 82,000
< 0.0023 40,000
< 0.0023 200,000
0.0093 4,088
< 0.0057 1,635
< 0.0568 40,880
< 0.0023 4,088
< 0.0023 4,000
< 0.0023 8,200
< 0.0023 40,880
< 0.0023 -
< 0.0023 4,088
< 0.0023 -
< 0.0023 20,440
< 0.0023 20,440
< 0.0023 -
Sample Location h v MW~1
DATE -:, ·,r· ~6/4/2001
Constituent ·. f~%~-·~~·r "~ ~··
VPH C5 -C8 Aliphatics 33,600
VPH C9 -C12 Aliphatics 24,200
VPH C9 -C10 Aromatics 11,400
BENZENE 2,BBO
TOLUENE 12,300
ETHYLBENZENE 1,500
XYLENES 11,100
MTBE 6,970
NAPHTHALENE 640
IPE 451
EDB 49.1
CHLOROFORM <2
ACETONE 753
1 ,2-DICHLOROETHANE 59.6
2-HEXANONE < 10
ISOPROPYLBENZENE 141
4-ISOPROPYL TOLUENE 21 .9
4-METHYL-2-PENTANONE 34.8
N-PROPYLBENZENE 350
STYRENE 5
TETRACHLORETHENE <2
TRICHLOROETHENE <2
1 ,2,4-TRIMETHYLBENZENE 3,640
1 ,3,5-TRIMETHYLBENZENE 990
LEAD 122
NOTES:
Data in ug/1
VPH-Volatile Petroleum Hydrocarbons
MTBE-Methyl Tert-Butyl Ether
IPE-Isopropyl ether
EDB -Ethylene Dibromide
Table 2 -Groundwater Data Table
SERVCO No. 01414
MW-2
11 06 2"d Street NE
Hickory, North Carolina
MW.,.J MW-4 MW-5
614/2001 7/16/2001 7/1612001 .7/16/2001
1:~~~~~~~ :¥.-.Jifi~':.,~.~& ~;:;:f,~;fl;4';' ... ·' '\! ... ·t,;~~~j~!~~~2r~~:&
75,400 16,700 2,960
24,100 9,060 1 '160
< 10,000 < 5,000 < 1,000
' .. 2,990 536
12,600 13,400 < 10
1,190 650 33
7,460 B,B60 172
15,000 9BO 1,3BO
< 500 < 500 76
5B9 150 61
:: !.1 9.9B 3.65
<2 < 1 10.2
1,490 NA NA
91.5 < 1 39
183 NA NA
69 NA NA
6.3 NA NA
50.3 NA NA
161 NA NA
<2 NA NA
<2 < 1 B
<2 4 < 1
1,360 NA NA
350 NA NA
4B4 22 44
GCLs-Gross Contamination Levels
NCAC -North Carolina Administrative Code
NA -Not Analyzed
4,790
1,820
< 1,000
BOB
82
99
640
2,960
<50
204
2.56
< 1
NA
B2.3
NA
NA
NA
NA
NA
NA
< 1
< 1
NA
NA
< 0.3
VEW-1
7/16/2001
l$1~~~.;~~~;&!,j~-:~1f;.'
178
< 100
< 100
1
2
< 1
4.4
3
<5
47.6
< 0.02
2
NA
< 1
NA
NA
NA
NA
NA
NA
< 1
< 1
NA
NA
135
Lead Samples Collected for MW-1 through VEW-1 on 11/20101
Data in blue exceeds both 2L and GCL Standards
NCAC 2L GCLs
--
--
--
1 • :.;:)!
1,000 i f> I ·.• H.:
29 2~·.uo,:
530 i:',. fJII
200 ~\JU.fiOt•
21 •!) ')l)o ,
70 ?IJ.\••)11
0.0004 :-_.;;
0.00019 'I ':.I'.•
700 ?t~O.OO~J
0.38 JfJfj
280 :'<n ;JD,l
70 .!.':"J i.'H'J')
-
-
70 ~r; t•~J'-•
0.1 !li01ll•1
0.7 i.h
2.8 . !11}~
350 ...::i.~ :)il(l
350 !5,t'·<.J!J
15 ·:"' HO(t . J -'
.· •
.·
-
Sample Location · .~'(/(ou
DATE ~~~--:'J!i;~~'i.
Constituent ··,,,
VPH C5 -C8 Aliphatics
VPH C9 -C12 Aliphatics
VPH C9 -C10 Aromatics
BENZENE
TOLUENE
ETHYLBENZENE
XYLENES
MTBE
NAPHTHALENE
IPE
EDB
1 ,2-DICHLOROETHANE
TETRACHLORETHENE
TRICHLOROETHENE
LEAD
NOTES:
Data in ug/1
.
Table 2 -Groundwater Data Table (Cont.)
SERVCO No. 01414
11 06 2nd Street N E
Hickory, North Carolina
MW-6 ' I,; M.W-7 ~ I r MW-8 : .. MW-9
3/fr/02 .l ' 3/6/02 '' 3/6/02 3/6/02
;/~-:'~(~~~! ~ ··.--~~~:1/'T.~'-* 't' I h. ~:.r··-\.J,~ l.~c~~"<~.::_:::,:~p_~: f;:'!f'i{ .~... :? ~~ ,, -t ;:.,,!f. ,, :
135 240 < 100 3,030
< 100 < 100 < 100 457
< 100 < 100 < 100 527
< 1 23.9 < 1 148
< 1 < 1 < 1 21.5
< 1 < 1 < 1 19
< 1 13.3 4.4 225
< 1 154 5.1 970
<5 <5 <5 27
2.3 54 33.6 778
< 0.02 < 0.02 < 0.02 1.06
1.7 3.7 2.9 28
504 < 1 < 1 <10
14.6 < 1 < 1 <10
21 50 92 26
VPH-Volatile Petroleum Hydrocarbons
MTBE-Methyl Tert-Butyl Ether
GCLs -Gross Contamination Levels
NCAC-North Carolina Administrative Code
NA -Not Analyzed
NCAC 2L
-
-
-
1
1,000
29
530
200
21
70
0.0004
0.38
0.7
2.8
15
IPE-Isopropyl ether Data in blue exceeds both 2L and GCL Standards
EDB -Ethylene Dibromide
GCLs
-
-
-
-Utl(,
.:51 ~01 ·
.!';; Ouo
t~7 "'>U(
L{HJ uutJ
I!: j{)lJ
J 0 :.:~nr
511
.W(I
.,\,()
L,•l J.
~_,,,,;;
--
~
Table 2-Groundwater Data Table (Cont.)
SERVCO No. 01414
Sample Location ~;.,.~ ,_ TMW-1
DATE •! ;~.:~~~ 5/2/02 ..
-Constituent , .. ; .. "~ -<~ ~~ l•:' 31'1~·: ~i ·· ~"".:;!
VPH C5 -C8 Aliphatics 1,400
VPH C9 -C12 Aliphatics 3,200
VPH C9 -C10 Aromatics 1,400
BENZENE 89
TOLUENE 650
ETHYLBENZENE 210
XYLENES 1,450
MTBE < 250
IPE < 250
EDB <50
1 ,2-DICHLOROETHANE <50
TETRACHLORETHENE 260
TRICHLOROETHENE <50
NOTES:
Data in ug/1
VPH-Volatile Petroleum Hydrocarbons
MTBE-Methyl Terl-Butyl Ether
1106 2"d Street NE
Hickory, North Carolina
:'. TMW-2 • TMW"3 TMW-4 ..
•5f7/02 Sn/02 517/92
jjj~ii~f~[ ~.. • ......... ;! :~:%~k~'-:~-r-· -,:~>: ~· .• ;'i,."s-,·.,.J:.~ ~~~~~~~
< 100 < 100 < 100
< 100 < 100 < 100
< 100 < 100 < 100
< 1 < 1 < 25
<5 <5 < 120
< 1 < 1 < 25
1.2 <2 42
<5 <5 < 120
<5 <5 < 120
< 1 < 1 < 25
< 1 < 1 < 25
160 < 1 ) ov()
4.2 < 1 57
GCLs -Gross Contamination Levels
NCAC-Norlh Carolina Administrative Code
NA -Not Analyzed
NCAC 2L
-
-
-
1
1,000
29
530
200
70
0.0004
0.38
0.7
2.8
IPE-Isopropyl ether Data in blue exceeds both 2L and GCL Standards
EDB -Ethylene Dibromide
GCLs
-
-
-
·i ()1111
1..':) 1 bCfl
!9 u!H:
~~I' ~~}{~
200 !.l!J(}
i'D OOu
::c•
-~8(.1
li.ii!
::;_8U(I
ParceiiD No Address
370311753321 1106 2nd Street NE
370311753441 1126 2nd Street NE
370312755477 I 211 1ih Avenue NE
370312755310 II 11 1h Avenue NE
370311753172 II 1022 2nd Street NE
370311750217 II 1039 2nd Street NE
NOTES:
Data collected from Catawba County Tax Department Web Site
Table 3-Adjacent Property Owners
SERVCO No. 01414
11 06 2"d Street N E
Hickory, North Carolina
Owner
Service Distributing Company
Betty Sue Coonse
Regal Manufacturing Company
Wilma D. Kiser
Miller Rentals, LLC I
Catawba Valley Bank II
Relative Location Land Use
Subject Property Gas Station I
North of Subject Gas/Service Station I
North-Northeast of Subject Textile Manufacturing I
East of Subject Parking Lot I
South of Subject Shopping Center I
West of Subject Bank I
Well
Number
MW-1
MW-2
MW-3
MW-4
MW-5
MW-6
MW-7
MW-8
MW-9
VW-1
TMW-1
TMW-2
TMW-3
TMW-4
Notes:
Table 4 -Monitor Well Data Table
SERVCO No. 01414
1106 2"d Street NE
Hickory, North Carolina
TOC Total Depth to
Elevation (ft.) Depth (ft) Water (ft.)
99.67 45 37.45
100.00 45 37.44
100.10 45 37.58
98.48 45 36.62
97.36 45 35.5
96.11 42 33.33
95.99 42 34.86
96.84 47 34.48
105.65 47 38.97
-65 -
-45 -
-40 -
-40 -
-45 -
TOC-Top Of Casing
Depth to water data from liquid levels collected on 316102
VW-1 is Type Ill well, data not used
Water Table
Elevation (ft.)
62.22
62.56
62.52
61.86
61.86
62.78
61.13
62.36
66.68
-
-
-
-
-
LIST OF FIGURES
Figure 1 -Site Vicinity Map
Figure 2-Site Plan
Figure 3 -Cross Section A-A'
Figure 4 -Cross Section B-B'
Figure 5 -Water Table Contour Map
Figure 6-Benzene in Soils Map
Figure 7-Naphthalene in Soils Map
Figure 8-VPH in Soils Data Map
Figure 9-Benzene in Groundwater Map
Figure 10 -BTEX in Groundwater Map
Figure 11 -MTBE in Groundwater Map
Figure 12-Naphthalene in Groundwater Map
Figure 13-EDB in Groundwater Map
Figure 14-IPE in Groundwater Map
Figure 15 - 1 ,2-Dichloroethane in GW Map
Figure 16-PCE in Groundwater Map
Figure 17-TCE in Groundwater Map
Figure 18-Lead in Groundwater Map
\ Lb~ {\j~~d;:;·'·,
\ ·\C.~unt·l~·. . ' \ ·-..;;
' \,
EXCEL CIVIL & ENVIRONMENTAL
ASSOCIATES, PLLC
302 S . CHURCH STREET, SUITE 8
GASTONIA, NC 28054
(704) 853-08000
FIGURE 1-
SITE VICINITY MAP
Source: U.S.G.S. 7.5 Minute Topographic Map
Hickory, NC, Quadrangle, 1993
\
.. ,._:.;F
' l
, I
I
i : I
I ' r -
' .· ..
N
---------•• n n •• n --~ I
I
B-8
~
MW-7 TMW-3
-------------------------]
COMMERCIAL
F:JOBS/21 XJ<:I.I21 058/CSA 'R_.wrnwtngs.dWOJ
LEGEND
._;c:O Existing Dispenser Pump
.....-.. ,..._
N
"'r"
~ I
() z ..._...
w z
1-w w
0:::
l-en
0 z
N
--y--
ASPHALT
+
MW-f"J
ASPHALT
B-4 TMW-2 +
+TMW-1
11TH AVENUE NE
(
,r-----------------.----------------------------------.
COMMERCIAL
NOTES
Map adapted from Aerial Photograph &
Ex~
Civil & Ellvironment.
J02 SOUTH CHURCH ST., GASTONIA, NC
PREPARED FOR: SERVICE DISTR/Bo
SERVCO NO. 01414
1106 2nd STREET f'ol
MEMORANDUM
To: Matt Heller
Groundwater Section, DWQ
From: Brad Newton &f\J
UST Section, DWM
Subject: UNKNOWN SOURCE
UST Site: Servco 01414
1106 2nd Street NE
Hickory. Catawba County
Inc. No. 15678
Contaminants Identified:
DIVISION OF WASTE MANAGEMENT
Date: 7/5/02
TCE and PCE discovered during CSA at above-referenced facilitv . Consultant believes that most
likelv source is Regal Manufacturing Company. 212 12'11 Avenue NE.
APPENDIX3
HISTORICAL AERIAL PHOTOGRAPHS
@ ~~~~~~~~~~;nts~~~~:, "'""
Charlotte, NC 28270 Fax: [phone]
88& T Project #:
EA Project#:
Eagle Real Estate, LLC
212 1ih Avenue Northeast
Hickory, North Carolina
ESA062856
06-6723.1
Eagle Real Estate, LLC
212 1ih Avenue Northeast
Hickory, North Carolina
ESA062856
06-6723.1
A endix -Aerials Year: 1968
@ ~~~!~~s::~.~;nts~~~~:, "'""
Charlotte. NC 28270 Fax: [704] 846-3271
Site Name:
BB& T Project #:
EA Project #:
... -r ··
Scale: Unknown Nl
Eagle Real Estate, LLC
212 1ih Avenue Northeast
Hickory, North Carolina
ESA062856
06-6723.1
BB& T Project #:
EA Pro'ect #:
Eagle Real Estate, LLC
212 121h Avenue Northeast
Hickory, North Carolina
ESA062856
06-6723.1
@ :~~~~~.s!:!~,~;nts!~~:, '"""
Charlotte. NC 28270 Fox: [704)846-3271
BB& T Project #:
EA P ect #:
Eagle Real Estate, LLC
212 1ih Avenue Northeast
Hickory, North Carolina
ESA062856
06-6723.1