HomeMy WebLinkAboutWS-7425_30814_CA_IAR_20131224Initial Abatement Action Report
A. Site Information
1. Site Identification
;Date of Report: _12/24/2013
;Facility I.D.: Not Registered___ UST Incident Number (if known): _Not Known
;Site Name: _Meat Camp Volunteer Fire Department_________________________
;Site Street Address: _118 Meat Camp Road _______________________________________________
;City/Town: __Boone_________________Zip Code: _28607__County: _Watauga__________________
;Description of Geographical Data Point (e.g., diesel fill port): Gasoline UST
;Location Method (GPS, topographical map, other):_GPS
;Latitude (decimal degrees): 36° 16” 11.85” N___ Longitude (decimal degrees): _81° 39’ 23.68”W__
2. Information about Contacts Associated with the Leaking UST System (Addresses must include street, city,
state, zip code and mailing address, if different)
;UST Owner/Operator: __ Meat Camp Volunteer Fire Department
Address: c/o Mr. Larry Carrol, 200 Del Coffey Road, Boone, NC 28607_____Tel.: __(828) 264-6206
_______
;Property Owner: John & Doretha Greene Life Estate_______________________________
Address: 4501 Hwy. 194 N, Boone, NC 28607 Tel.: 828-264-6402
;Consultant/Contractor: _Geonetics Corporation___________________________________________
Address: _____157 Del Coffey Road, Boone, NC 28607_____Tel: ____(828) 773-3969_______
;Analytical Laboratory: _Prism Labs, Inc._____________________State Certification No._275____
Address: ____449 Springbrook Road Charlotte, NC 28217_____________Tel: _(704) 529-6364 ______
3. Information about Release
;Date Discovered: November 20, 2013_____________
;Estimated Quantity of Release: _Unknown__________________________________________________
;Cause of Release: _Leaking UST ________________________________________________________
;Source of Release (Dispenser/Piping/UST): __1,000 gallon Steel Gasoline UST__________
;Sizes and contents of UST system(s) from which the release occurred): __1,000 gallon Gasoline__
4. Certification
I, _____________________________, a Licensed Geologist for Geonetics Corp., do certify that the information contained
in this report is correct and accurate to the best of my knowledge.
Geonetics Corp.__ is licensed to practice geology in North Carolina. The certification number of the company or
corporation is _C154_________________.
B. Site History and Characterization
1.
SITE HISTORY
Table B- 2 UST Owner/Operator Information
UST ID Number Name of Owner or
Operator
Dates of Ownership / Operation
[(m/dd/yy) to (m/dd/yy)]
Owner or
Operator?
1 Meat Camp VFD Mid 1970s to November 20, 2013 both
Address Telephone Number
118 Meat Camp Road
Boone, NC 28607 (828) 264-6206
Table B-2 above shows UST Owner/Operator Information.
2. Site History – UST/AST System and Other Release Information
Table B-1 Date: 12/23/13 Incident Number and Name: Meat Camp VFD
US
T
ID
Current/
Last
Contents
*
Previous
Content
s *
Capacity
(in
gallons)
Construct
ion
Details **
Tank
Dimensio
ns
Description
of
Associated
Piping and
Pumps
Date
Tank
Installed
Status of
UST ***
Was
release
associate
d with
the UST
System?
1 Gasoline unknown 1000 steel 4’ x 10.5’
Steel product
line to
dispenser
mid
1970s
Closed/
Removed Yes
Table B-1 lists information about the closed UST system.
The location of this UST is shown relative to the former VFD building on Figure 2.
3. There are no known spills or releases at the Meat Camp VFD prior to the release discovered 11/20/13. The
former Meat Camp Fire Department was located on a property that contained multiple buildings. One of
these buildings was operated as a gas. There was a release documented from the USTs at this gas station.
This earlier release is incident #30814, Meat Camp Service Station, at 116 Meat Camp Road. It is our
understanding that the earlier release is being managed under the State Lead Federal Trust Fund, excepted
on 8/7/2007.
4. Provide a comprehensive description of the release, including date discovered, cause and source (including
tank identification number and contents), and the relationship of historical UST releases, non-UST
releases, and off-site releases (indicate incident number) to contamination from current release.
This 1,000 gallon gasoline UST was not used for many years. The UST was permanently closed by
removal on November 20, 2013. Petroleum odors were noted in the UST excavation after removal of the
UST. Holes were observed in the UST when it was removed from the excavation. One soil sample was
collected from the soil (S-6) excavated around the former UST and petroleum constituents were detected in
this soil sample by the TPH GRO method at a concentration of 85 ppm. There are no known spills or
releases at this site prior to the release discovered 11/20/13.
The Meat Camp VFD gasoline UST is located about 150 feet northwest of the USTs used at the Meat
Camp Service Station. The location of the former service station USTs would probably be cross-gradient
from a hydrogeology perspective.
5. Provide a brief description of site characteristics (including status of facility (active or inactive), land use
of site and surrounding area, water supply, topography, vegetation, surface water, wells, buildings, surface
cover, soil type, depth to and nature of bedrock, depth to groundwater, direction of groundwater flow, etc.)
The Former Meat Camp VFD was located in a building next to a convenience store that previously sold
gasoline. The property is used for commercial and residential purposes. There is a water supply well
onsite. The well is located about 20 feet south of the former gasoline UST. The property is in the valley of
Meat Camp Creek on a relatively level alluvial terrace. Meat Camp Creek is located 450 feet north of the
source area (Figure 1).
The soil consists of a fine to medium sandy silt at the surface. Alluvial sand and gravel was encountered in
the UST excavation down to a depth of about 10 to 12 feet where saprolite was encountered. Bedrock was
not encountered and depth to bedrock is unknown. Depth to groundwater is uncertain. There was water in
one area of the excavation. It is not know if this is perched water around the UST or the actual water table.
Groundwater from the shallow water table should flow north toward Meat Camp Creek.
6. Summarize initial abatement actions, assessment activities, and corrective actions performed to date and
list all reports previously submitted.
The UST was permanently closed by removal on November 20, 2013. Petroleum odors were noted in the
UST excavation after removal of the UST. Holes were observed in the UST when it was removed from the
excavation.
Contaminated soil was excavated from the base and from four sidewalls of the excavation. Soil samples
were collected from the base and sidewalls of the excavation in accordance to NCDENR confirmation soil
sampling procedures outlined in the 2008 Guidelines for Site Checks, Tank Closure, and Initial Response
and Abatement for UST Releases. The only previous report submitted to NCDENR was the 24-Hour
Report.
C. Site Check Report
A Site Check was not performed at this site.
D. UST Closure Report
A UST-2 form is included in Appendix 1.
1. Describe preparations for closure including steps taken to notify authorities, permits obtained, and steps
taken to clean and purge the tanks.
The WSRO of the NC DENR was notified prior to UST closure. Vapors in the UST were checked for
explosive vapors with an Explosimeter. The Lower Explosive Limit (LEL) reading for the UST was 20%.
28 pounds of dry ice were placed in the tank on 11/19/13 to displace any oxygen in the UST. The LEL was
checked on 11/20/13 and it measured less than 5% LEL. A UST closure permit was obtained from
Watauga County Emergency Management. A Health and Safety Plan was prepared for the closure work.
A tailgate safety meeting was conducted prior to commencing work and all parties signed the Health and
Safety Plan.
Geonetics Corporation met with Ms. Karen Hall of the WSRO at the site on 11/20/13 during the closure
event. The residual fuel remaining in the tank was pumped into a 55-gallon drum using a hand pump. This
drum was to be disposed of by the Meat Camp VFD.
2. Describe the closure procedure referencing site and sampling location maps and cross-sections presented
in Section J of this report. Clearly state how the selection of sample types and locations was influenced by
the nature of the stored substance, the type of initial alarm or cause for suspicion, the type of backfill, the
depth to groundwater, and other factors appropriate for identifying the presence and source of a release. If
presence of groundwater or bedrock require the installation and sampling of monitoring well(s), describe
the process.
The UST was permanently closed by removal on November 20, 2013. Petroleum odors were noted in the
UST excavation after removal of the UST. Holes were observed in the UST when it was removed from the
excavation.
A total of 14.95 tons of contaminated soil was excavated from the tank pit. This soil was loaded into a
truck and transported by Darren Moretz Backhoe Service to Environmental Soils in Lattimore NC. One
composite soil sample (S-6) was collected from soil piled in the dump truck. This soil sample was
analyzed by the TPH GRO method and detected petroleum constituents at a concentration of 85 ppm.
Contaminated soil was excavated from the base and from four sidewalls of the excavation. Soil samples
were collected from the base and sidewalls of the excavation in accordance to NCDENR confirmation soil
sampling procedures outlined in the 2008 Guidelines for Site Checks, Tank Closure, and Initial Response
and Abatement for UST Releases.
Soil sample S-1 was collected from the base of the excavation using the track hoe bucket from a depth of
12.0 feet. Soil samples S-2 (9.0’), S-3 (7.0’), S-4 (7.8’), and S-5 (8.1’) were collected from the sidewalls of
the excavation using decontaminated stainless steel
and encore samplers. The extent of the excavation and locations of soil samples are shown on Figure 3.
All soil samples were collected while wearing a new pair of disposable latex gloves. The soil samples were
collected in laboratory sealed containers and placed on ice. A chain of custody was initiated and the
samples were transported to Prism Labs Inc. in Charlotte, NC for analysis. Soil samples were analyzed
using EPA Method 8260 and the MADEP VPH method.
Darren Moretz Backhoe Service transported the empty 1,000 gallon tank to Zebra Environmental &
Industrial services, Inc. in High Point, NC. A Tank Disposal Manifest is included in Appendix B.
The selection of sample types and locations was not influenced by the nature of the stored substance.
Rather the samples were spaced evenly across the excavation to provide a representative determination of
soil quality after the over excavation work was completed.
Depth to groundwater is uncertain. There was water in one area of the excavation. It is not know if this is
perched water around the UST or the actual water table. The UST excavation was backfilled with a load of
clean fill material brought in from offsite.
3. Note the amount of residual material pumped from the tank and describe the storage, sampling and
disposal of the residual material and the disposal of the tank, pumps and piping.
The volume of residuals pumped from the UST was not measured. The residual fuel remaining in the tank
was pumped into a 55-gallon drum using a hand pump. This drum was to be disposed of by the Meat Camp
VFD.
4. If a release is determined, document initial response actions.
Petroleum odors were noted in the UST excavation after removal of the UST. Holes were observed in the
UST when it was removed from the excavation. Contaminated soil was excavated from the base and from
four sidewalls of the excavation. Soil samples were collected from the base and sidewalls of the excavation
in accordance to NCDENR confirmation soil sampling procedures outlined in the 2008 Guidelines for Site
Checks, Tank Closure, and Initial Response and Abatement for UST Releases.
A 24-hour report was submitted to NC DENR on 11/25/13.
5. Document any soil excavation activities.
A total of 14.95 tons of contaminated soil was excavated from the tank pit. This soil was loaded into a
truck and transported by Darren Moretz Backhoe Service to Environmental Soils in Lattimore NC. One
composite soil sample (S-6) was collected from soil piled in the dump truck. This soil sample was
analyzed by the TPH GRO method and detected petroleum constituents at a concentration of 85 ppm.
6. Document site investigation.
Soil samples ranged from a sandy silt to sand.
Each soil sample was screened in the field for petroleum vapors with a Photocheck 100 photoionization
detector. The photoionization detector is calibrated with a 100-ppm isobutylene calibration gas mixture.
Soil samples were placed in sealable plastic bags. The bagged samples were placed in a warm vehicle to
allow petroleum vapors to volatize. The headspace in each sample bag was screened with the
photoionization detector.
The upper one to two feet of soil consisted of a sandy silt. Below this were sand beds with gravel lenses.
Saprolite was encountered at a depth of about 10 to 12 feet.
Soil sample S-1 was collected from the base of the excavation using the track hoe bucket from a depth of
12.0 feet. Soil samples S-2 (9.0’), S-3 (7.0’), S-4 (7.8’), and S-5 (8.1’) were collected from the sidewalls of
the excavation using decontaminated stainless steel spoons and encore samplers. Soil sample S-7 was
collected from directly below the former dispenser at a depth of one foot. Soil sample S-8 was collected
below the product line at a depth of 1 foot, 5 inches. Both samples S-7 and S-8 were collected with
decontaminated hand auger buckets. The extent of the excavation and locations of soil samples are shown
on Figure 3. All soil samples were collected while wearing a new pair of disposable latex gloves. The soil
samples were collected in laboratory sealed containers and placed on ice. A chain of custody was initiated
and the samples were transported to Prism Labs Inc. in Charlotte, NC for analysis. Soil samples were
analyzed using EPA Method 8260 and the MADEP VPH method.
Location of the soil samples is shown on Figure 3. All soil samples were collected on November 20, 2013.
The sample time is listed on the Chain of Custody.
Depth to groundwater is uncertain. There was water in one area of the excavation. It is not know if this is
perched water around the UST or the actual water table.
The stainless steal sampling and auger buckets were decontaminated with non-phosphate detergent,
distilled water and isopropyl alcohol. A new pair of disposable latex gloves was worn while collecting
each sample. Horizontal and vertical location of the soil samples were identified by measuring with a
fiberglass tape, estimating right angles and referencing site features.
Soil samples were stored on ice and shipped to Prism Labs in Charlotte, NC on November 21, 2013 via
Federal Express. Soil samples were not collected for quality control.
TPH GRO constituents were not detected in soil samples S-7 and S-8 at concentrations above the method
detection limits. Table B-3 lists the petroleum constituents detected in soil samples S-1 through S-5. These
samples did not contain petroleum constituent concentrations above the MSCCs (Table B-3). Soil sample
S-6 was a composite sample collected from the dump truck. This sample contained TPH GRO at a
concentration of 85 ppm.
7. Present conclusions and recommendations, referencing maps
The source of soil contamination was the leaking 1,000 gallon gasoline UST. Excavation limits are shown
on Figure 3. Over excavation confirmation soil sampling indicates that petroleum constituents remaining in
the soil do not exceed the soil-to-groundwater or the residential Maximum Soil Contaminant
Concentrations established by NC DENR (Table B-3). Free product has not been encountered at the site.
The former Meat Camp Fire Department is located on a property that included a former gas station where a
previous release has been documented. It is our understanding that the earlier release is being managed
under the State Lead Federal Trust Fund. The previous release incident is known as the Meat Camp
Service Station, Groundwater Incident #30814.
. E. Free Product Investigation and Recovery Report
Not Applicable
F. Groundwater and Surface Water Investigation
Not Applicable
G. Initial Response and Abatement Action
Petroleum odors were noted in the UST excavation after removal of the UST. Holes were observed in the
UST when it was removed from the excavation. Contaminated soil was excavated from the base
and from four sidewalls of the excavation. Soil samples were collected from the base and
sidewalls of the excavation in accordance to NCDENR confirmation soil sampling
procedures. A total of 14.95 tons of contaminated soil was excavated from the tank pit. This soil was
loaded into a truck and transported by Darren Moretz Backhoe Service to Environmental Soils in Lattimore
NC. One composite soil sample (S-6) was collected from soil piled in the dump truck. This soil sample
was analyzed by the TPH GRO method and detected petroleum constituents at a concentration of 85 ppm.
A 24-hour report was submitted to NC DENR on 11/25/13.
H. Excavation of Contaminated Soil
Soil samples ranged from a sandy silt to sand.
Each soil sample was screened in the field for petroleum vapors with a Photocheck 100 photoionization
detector. The photoionization detector is calibrated with a 100-ppm isobutylene calibration gas mixture.
Soil samples were placed in sealable plastic bags. The bagged samples were placed in a warm vehicle to
allow petroleum vapors to volatize. The headspace in each sample bag was screened with the
photoionization detector.
The upper one to two feet of soil consisted of a sandy silt. Below this were sand beds with gravel lenses.
Saprolite was encountered at a depth of about 10 to 12 feet.
Soil sample S-1 was collected from the base of the excavation using the track hoe bucket from a depth of
12.0 feet. Soil samples S-2 (9.0’), S-3 (7.0’), S-4 (7.8’), and S-5 (8.1’) were collected from the sidewalls of
the excavation using decontaminated stainless steel spoons and encore samplers. Soil sample S-7 was
collected from directly below the former dispenser at a depth of one foot. Soil sample S-8 was collected
below the product line at a depth of 1 foot 5 inches. Both samples S-7 and S-8 were collected with
decontaminated hand auger buckets. The extent of the excavation and locations of soil samples are shown
on Figure 3. All soil samples were collected while wearing a new pair of disposable latex gloves. The soil
samples were collected in laboratory sealed containers and placed on ice. A chain of custody was initiated
and the samples were transported to Prism Labs Inc. in Charlotte, NC for analysis. Soil samples were
analyzed using EPA Method 8260 and the MADEP VPH method.
Location of the soil samples is shown on Figure 3. All soil samples were collected on November 20, 2013.
The sample time is listed on the Chain of Custody.
Depth to groundwater is uncertain. There was water in one area of the excavation. It is not know if this is
perched water around the UST or the actual water table.
The stainless steal sampling spoons and auger buckets were decontaminated with non-phosphate detergent,
distilled water and isopropyl alcohol. A new pair of disposable latex gloves was worn while collecting
each sample. Horizontal and vertical location of the soil samples were identified by measuring with a
fiberglass tape, estimating right angles and referencing site features.
Soil samples were stored on ice and shipped to Prism Labs in Charlotte, NC on November 21, 2013 via
Federal Express. Soil samples were not collected for quality control.
TPH GRO constituents were not detected in soil samples S-7 and S-8 at concentrations above the method
detection limits. Table B-3 lists the petroleum constituents detected in soil samples S-1 through S-5. These
samples did not contain petroleum constituent concentrations above the MSCCs (Table B-3). Soil sample
S-6 was a composite sample collected from the dump truck. This sample contained TPH GRO at a
concentration of 85 ppm.
I. Conclusions
The source of soil contamination was the leaking 1,000 gallon gasoline UST. Excavation limits are shown
on Figure 3. Over excavation confirmation soil sampling indicates that petroleum constituents remaining in
the soil do not exceed and soil-to-groundwater or the residential Maximum Soil Contaminant
Concentrations established by NC DENR. Free product has not been encountered at the site.
The former Meat Camp Fire Department is located on a property that has multiple buildings. One of these
buildings was operated as a former gas station. An earlier release has been documented at the service
station as incident #30814, Meat Camp Service Station, at 116 Meat Camp Road. It is our understanding
that the earlier release is being managed under the State Lead Federal Trust Fund, excepted on 8/7/2007.
The Meat Camp VFD gasoline UST is located about 150 feet northwest of the USTs used at the Meat
Camp Service Station. The location of the former service station USTs would probably be cross-gradient
from a hydrogeology perspective.
E. Table B-3 and Figures
Table B- 3 Summary of Soil Sampling Results
Date: 12/17/13 Incident Name: Meat Camp VFD Incident #: Not Registered
•
• Analytical results reported in ppm
• NA = Not analyzed
• -- = Petroleum constituent not detected at or above minimum quantification limits
Analytical Method 8015
TPH
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B EPA
8260B
EPA
8260B
EPA
8260B
EPA
8260B Sample ID Contaminant of
Concern
TPH GRO Butylbenzene n- Butylbenzene sec- Acetone Ethyl Benzene Isopropylbenzene Naphthalene Propylbenzene-n Toluene Trimethylbenzene 1,2,4- Trimethylbenzene 1,3,5- Xylenes 4-Iosopropyltoluene Methyl Ethyl Ketone C5-C8 Aliphatics C9-C18 Aliphatics C9-C22 Aromatics Date Collected (m/dd/yy) Depth (ft BGS) S-1 11/20/13 12.0 NA -- -- 0.0063 0.0081 -- 0.0057 0.0048 -- 0.026 0.0091 0.0068 -- 0.0068 -- 2.9
1.6
S-2 11/20/13 9.0 NA -- -- 0.051 -- -- 0.0015 0.093 -- -- -- -- 0.0031 -- -- --
--
S-3 11/20/13 7.0 NA 0.031 0.016 0.017 0.012 0.022 0.064 -- 0.016 0.10 0.15 -- 0.012 -- 0.56 4.5
0.65
S-4 11/20/13 7.8 NA -- -- 0.016 -- -- 0.0022 -- -- 0.0029 -- -- 0.0029 -- -- --
\--
S-5 11/20/13 8.1 NA 0.0097 0.0048 0.075 0.020 0.0062 0.024 0.024 0.0084 0.15 0.046 0.0024 0.0096 0.0024 1.8
1.1
S-6 11/20/13 Truck 85 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
S-7 11/20/13 1.0 85 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
S-8 11/20/13 1.45 85 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Soil to groundwater
MSCC (ppm) 4.3 3.3 24 4.9 1.7 0.16 1.7 4.3 8.5 8.3 4.6
0.12 16 68 540
31
Residential MSCC
(ppm) 626 626 14000 1560 1564 313 626 1200 782 782 3129
100 9385 939 1500
469
Industrial/Commercial
MSCC (ppm) 16350 16350 360000 40000 40880 8176 16350 32000 20440 20440 81760
4000 245280 24528 40000
12264
NC DENR Action
Level (ppm) 10
10000
Feet
Meat Camp VFD
(Former)
Geonetics Corporation
135 Del Coffey Road
Boone, NC
Source: Map provided by the
U.S. Geological Survey
National Map Site Location Map
N
Figure 1
Appendix A
Laboratory Reports and Chain of Custody
Appendix B
Soil Disposal Manifest
Tank Disposal Manifest
Appendix C
Standard Operating Procedures
The WSRO of the NC DENR was notified prior to UST closure. Vapors in the UST were checked for explosive
vapors with an Explosimeter. The Lower Explosive Limit (LEL) reading for the UST was 20%. 28 pounds of dry
ice were placed in the tank on 11/19/13 to displace any oxygen in the UST. The LEL was checked on 11/20/13 and
it measured less than 5% LEL. A UST closure permit was obtained from Watauga County Emergency
Management. A Health and Safety Plan was prepared for the closure work. A tailgate safety meeting was
conducted prior to commencing work and all parties signed the Health and Safety Plan.
Soil sample S-7 and S-8 was collected using decontaminated auger buckets. Soil sample S-1 was collected from the
Backhoe bucket. Soil samples S-2 through S-5 were collected from the excavation using decontaminated stainless
steel spoons and encore samplers. The spoons and auger bucket were decontaminated with non-phosphate
detergent, distilled water and isopropyl alcohol. Soil samples collected for laboratory analysis were placed in
sample jars with Teflon-lined lids, chilled and Chain-of-Custody record was initiated. Soil samples were transported
to Prism Labs Inc. in Charlotte, North Carolina for analyses. A new pair of disposable latex gloves was worn while
collecting each sample. Horizontal and vertical locations of the soil samples were identified by measuring with a
fiberglass tape, estimating right angles and referencing site features.