HomeMy WebLinkAboutFINAL-Barry's Tank Removal Report •ADVANCED ENVIRONMENTAL CONCEPTS INC • /
• ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND • 220 E. TRUXTUN AVENUE BAKERSFIELD, CA 93305 661/395-1646 FAX 661/395-1616
Tank Closure Report
for
Barry’s Wholesale Corral 500 South Union Avenue County of Kern • Bakersfield, California
This report has been prepared for:
Mr. Mike Stier November 2013 Stier Family Trust
Tank Closure Report Advanced Environmental Concepts, Inc. Barry’s Wholesale Corral
• ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND • 220 E. TRUXTUN AVENUE BAKERSFIELD, CA 93305 661/395-1646 FAX 661/395-1616
Table of Contents
1.0 INTRODUCTION 1
2.0 PROCEDURES 1
3.0 PHYSICAL CHARACTERISTICS 2 3.1 Site Description 2
3.2 Site Hydrogeology 2 3.3 Soil Profile 2
4.0 TANK REMOVAL PROCEDURES 3 4.1 Soil Sample Location and Collection Procedures 3
5.0 LABORATORY ANALYSIS and RESULTS 4
6.0 CONCLUSIONS 4
7.0 RECOMMENDATIONS 4
8.0 LIMITATIONS 5
9.0 CLOSING 5
Appendices
(A) Figures and Site Photographs
(B) Uniform Waste Manifest
(C) Tank Destruction Certification
(D) Dry Ice Receipt
(E) City of Bakersfield Fire Department Permit
(F) Laboratory Reports and Chain-of-Custody Documents
(G) PID Readings
(H) Certified Compaction Report
Tank Closure Report Advanced Environmental Concepts, Inc. Barry’s Wholesale Corral
• ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND • 220 E. TRUXTUN AVENUE BAKERSFIELD, CA 93305 661/395-1646 FAX 661/395-1616
1
1.0 INTRODUCTION
This report presents the results of an underground storage tank (UST) removal conducted by Advanced Environmental Concepts, Inc. (AEC) at 500 South Union Avenue, Bakersfield, California on November 21, 2013. The objective was to assess the soil for the presence of hydrocarbons beneath the two out-of-service 10,000-gallon gasoline USTs following excavation and removal (Figure 1).
Tank removal procedures were performed under the supervision of the City of Bakersfield Fire Department (Mr. Ernie Medina) and a tank removal permit (#10000550) was obtained from the City prior
to the removal. AEC supervised the UST removal, Crider Construction provided the excavation equipment, and Adams Services cleaned the tank interiors and transported the rinseate and the two
USTs for offsite disposal; Mr. Jonathan Buck, Professional Geologist of AEC collected the required soil samples. This report includes background information regarding existing site characteristics, local geology and
hydrology, tank removal procedures, sample collection procedures, analytical results, and related conclusions and recommendations. Report appendices contain Figures and Site Photographs (Appendix A), Uniform Hazardous Waste Manifest (Appendix B), Tank Destruction Certification
(Appendix C), Dry Ice Receipt (Appendix D), City of Bakersfield Fire Department Permit (Appendix E), and Laboratory Reports/Chain-of-Custody Documents (Appendix F), PID Readings (Appendix G) and
Certified Compaction Report (Appendix H).
2.0 PROCEDURES
The USTs were located beneath the asphalt-paved parking lot at 500 South Union Avenue and constructed of heavy gauge single-wall steel. The following UST removal services were conducted
during the course of this project on behalf of the Stier Family Trust:
• Perform a geo-physical survey to determine the initial location of the two 10,000-gallon USTs;
• Remove the asphalt surface over the top of the USTs;
• Excavated the soil from the top and sides of the USTs;
• Decontaminated the interior of the two USTs with a high-pressure washer and collect, transport, and dispose of the rinseate generated during the tank cleaning process;
• Inert the tanks prior to removal using solid Carbon Dioxide (dry ice);
• Measure LEL and Oxygen using a recently calibrated meter;
• Remove the tanks from the excavation using a crane and transport to a metals recycling
facility;
• Collect soil samples from beneath tank inverts;
• Backfill the excavation;
• Summarize these procedures in the form of a "Tank Closure Report".
Tank Closure Report Advanced Environmental Concepts, Inc. Barry’s Wholesale Corral
• ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND • 220 E. TRUXTUN AVENUE BAKERSFIELD, CA 93305 661/395-1646 FAX 661/395-1616
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3.0 PHYSICAL CHARACTERISTICS
3.1 Site Description
The subject property is located at 500 South Union Avenue in Bakersfield, California. The two USTs were located west of the original building beneath an asphalt-paved parking lot.
3.2 Site Hydrogeology
The subject property is located in the southeastern end of the San Joaquin Valley where the
Sierra Nevada, Great Valley, and Coastal Range physiographic provinces meet. The southern end of the Sierra Nevada province is composed of a massive block of igneous and metamorphic
rock of Mesozoic age and older. This Sierran block, 40 to 100 miles wide and 400 miles long, slopes five to seven degrees beneath the San Joaquin Valley. The Coastal Range province on
the west consists of tectonically deformed and fractured marine and non-marine sedimentary rocks of Jurassic, Cretaceous, and Tertiary age which dip eastward beneath the San Joaquin
Valley. The Great Valley province is a broad asymmetrical synclinal trough, which is known as the Sacramento Valley in the north and the San Joaquin Valley in the south. Beneath the
southern San Joaquin Valley floor, the Sierran plutonic and metamorphic rock is overlain by consolidated marine rocks of Jurassic and Cretaceous age. These rocks are overlain by
continental marine and non-marine sedimentary rocks of Tertiary age. These continental deposits are consolidated to semi-consolidated, fossilferous sandstone, siltstone, and shale
which thicken toward the south and west. The Tertiary rocks are overlain by unconsolidated continental deposits consisting of Pliocene to Holocene river and lake sediments of gravel, sand,
silt, and clay. Surface features of the floor of the San Joaquin Valley consist of dissected uplands, alluvial fans, overflow areas, and lake bottoms. Dissected uplands lie between the
mountains and the nearly flat Valley floor and are manifest in low lying hills through which perennial and intermittent streams flow. These features consist of reworked older alluvium. The
alluvial fans are the sites of active stream deposition of sand and silts derived from the Sierra Nevada and the dissected uplands. The overflow lands and lake bottoms lie in the central part of
the Valley where silt and clay accumulate in quiet lake and marsh environments. The Central Valley of California is underlain by a broad and deep hydrogeologic unit consisting of
soil and rock of varying porosity and permeability. Physical dimensions are approximately 50
miles wide at the widest point in the Valley, 400 miles long, and as much as 2,000 feet deep. Recharge to regional aquifers consists of infiltration of seasonal precipitation and percolation of
surface waters. The Valley aquifer of greatest storage, highest quality, and greatest accessibility for domestic and agricultural use consists of the alluvial and lacustrine continental deposits
extending to depths of 1,500 to 2,000 feet beneath the San Joaquin Valley floor. Lithology and hydraulic properties of these sediments are largely the product of the sediment source and the
depositional environment. These sediments range in size from clays to boulders and include all mixtures between the extremes. Those of the west side of the Valley are derived largely from the
Coastal Ranges, which tend to consist of shales and fine sandstones with limited permeability. The east side sediments are derived mainly from granitic materials of the Sierra Nevada which
are generally coarser and much more permeable. The majority of groundwater pumped from beneath the Valley floor occurs within unconsolidated
continental deposits. The groundwater flow direction (gradient) beneath the site is estimated to be toward the west. Using data published by the Kern County Water Agency, depth to first
unconfined groundwater is estimated range between 100 and 150-feet below ground surface (bgs) beneath the site area.
Tank Closure Report Advanced Environmental Concepts, Inc. Barry’s Wholesale Corral
• ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND • 220 E. TRUXTUN AVENUE BAKERSFIELD, CA 93305 661/395-1646 FAX 661/395-1616
3
3.3 Soil Profile
Native soil within the excavation consisted of well graded, moderately moist, medium to coarse-
grained sand from surface grade to a total sampled depth of 17-feet bgs.
4.0 TANK REMOVAL PROCEDURES
AEC conducted the excavation and removal of the two USTs during November 20-22, 2013. The two USTs were oriented east-west. AEC mobilized to the site on November 20, 2013 and supervised Crider
Construction which provided the backhoe and excavator. Initially, the asphalt surface was removed then the top and sides of the USTs were uncovered using a backhoe. On November 21, 2013, the tank top
plumbing was removed by AEC then the tanks were triple-rinsed by Adams Services; the rinseate generated during the cleaning was pumped into the vacuum truck for offsite removal. No visually stained
soil, hydrocarbon odor, or elevated photoionization detector (PID) readings were detected during the removal of the soil surrounding the USTs. After cleaning the tank interiors, the USTs were inerted with a
minimum of 20-pounds of dry ice per 1,000-gallons of tank capacity.
Adams Services supervised the monitoring of the oxygen concentration and lower explosive limit (LEL) within the tank interiors using an RKI Eagle LEL/Oxygen meter; upon approval of the Bakersfield Fire
Department the two USTs were acceptable for safe removal. The two USTs were removed from the excavation using a crane (T & T Truck and Crane) and loaded onto a flatbed trailer for disposal and
recycling at Golden State Metals in Bakersfield, California. The rinseate removed from the USTs was transported for disposal and recycling to DeMenno Kerdoon, Compton, California, under Uniform
Hazardous Waste Manifest #010403651JJK. Following removal of the two USTs, AEC collected soil samples beneath the ends of the tanks at 2’ and 6’ below tank invert.
On November 22, 2013, Crider Construction commenced backfilling the excavation to grade and Soils
Engineering, Inc. certified the compaction by conducting field density tests using a nuclear gauge. 4.1 Soil Sample Location and Collection Procedures
A total of 8 discrete soil samples were collected beneath each end of the two USTs (2’ and 6’ beneath tank invert). No visual indications of hydrocarbon contamination were observed during
the UST removal procedures and subsequent soil sample collection procedures.
All sample collection locations and procedures were conducted in accordance with UST removal permit requirements of the BFD. The following protocol was observed during sampling
procedures:
• An excavator was used to obtain a representative sample of native soil from beneath the ends of each UST at 2’ and 6’ beneath tank invert;
• An AEC geologist pushed a clean sampling sleeve into an undisturbed portion of the soil within the excavator bucket, leaving no head space within the container;
• The sampling containers were sealed with Teflon-lined plastic end caps, labeled, placed in a sealable plastic bag, and stored in a cooler chilled to approximately 4-degrees Centigrade;
• The soil samples were recorded on a Chain-of-Custody document to ensure sample integrity and traceability;
• Analytical tests were performed by Associated Laboratories, a California-certified Laboratory located in Orange, California.
Tank Closure Report Advanced Environmental Concepts, Inc. Barry’s Wholesale Corral
• ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND • 220 E. TRUXTUN AVENUE BAKERSFIELD, CA 93305 661/395-1646 FAX 661/395-1616
4
5.0 LABORATORY ANALYSIS and RESULTS
The analyses specified and performed on the soil samples were in accordance with accepted State of California Department of Health Services (DHS) laboratory procedures for total petroleum hydrocarbons as gasoline (TPH-g) by EPA Method 8015 and EPA Method 8021B for volatile organic compounds
(MTBE, benzene, toluene, ethyl benzene, and total xylenes). The analytical results are summarized in the following table and the laboratory reports and chain of custody documents are presented in Appendix D of this report.
Units of measurement presented in Table 1 are reported in milligrams per kilogram (mg/kg), equivalent to
parts per million (ppm) for total gasoline-range hydrocarbons (TPH-g) and micrograms per kilogram
(ug/kg), equivalent to parts per billion (ppb) for the volatile organic compounds (benzene, toluene, ethylbenzene, total xylenes, and MTBE). TABLE 1 Analytical Results of Soil Samples
November 21, 2013
Sample ID:
TPH-g
(ppm)
Benzene
(ppb)
Toluene
(ppb)
Ethyl- Benzene
(ppb)
Total Xylenes
(ppb)
MTBE
(ppb)
10KN-W-2’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
10KN-W-6’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
10KS-W-2’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
10KS-W-6’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
10KS-E-2’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
10KS-E-6’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
10KN-E-2’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
10KN-E-6’ ND<0.018 ND<0.18 ND<0.24 ND<0.21 ND<0.4 ND<0.19
Note: See Figure 2 for identification of sampling locations.
6.0 CONCLUSIONS
Non-detectable concentrations of volatile organic compounds and TPH-gasoline were indicated in the soil samples collected from beneath the two USTs. Also, the former tank emplacement was initially backfilled with the stockpiled native soil removed during the uncovering of the USTs followed by clean import fill.
The backfill material was placed in one-foot lifts and compacted using a wheel attached to the excavator. A technician with Soils Engineering conducted the compaction testing at selected depths and the results
indicated greater than 90% relative compaction.
7.0 RECOMMENDATIONS
Based on the non-detectable hydrocarbon concentrations identified beneath the former USTs, AEC
recommends that no further investigation appears warranted for this site.
Tank Closure Report Advanced Environmental Concepts, Inc. Barry’s Wholesale Corral
• ENVIRONMENTAL CONCEPTS WITH DESIGN IN MIND • 220 E. TRUXTUN AVENUE BAKERSFIELD, CA 93305 661/395-1646 FAX 661/395-1616
5
8.0 LIMITATIONS
This work has been performed in accordance with generally accepted tank removal and environmental science and engineering practices. Conclusions and recommendations are based upon information collected and compiled during the tank removal and data supplied by the Client. No other warranty,
expressed or implied, is given.
The soil samples for this project were obtained on a finite grid; hence, the laboratory results are indicative of discrete samples and are not meant to be misconstrued as representative of unsampled areas.
9.0 CLOSING
Advanced Environmental Concepts, Inc. appreciates the opportunity to be of service to Mr. Mike Stier and the Stier Family Trust on this project. If there are any questions, or if additional information should be
required regarding this report, please do not hesitate to contact our office at (661) 395-1646.
Sincerely,
Advanced Environmental Concepts, Inc.
Barry’sWholesaleCorral
Advanced Environmental Concepts, Inc.
Appendix A
FIGURES AND SITE PHOTOGRAPHS
220 East Truxtun Avenue
Bakersfield, California 93305(661) 395-1646
•ADVANCE •/DENVIRONMENTALCONCEPTSINC Barry’s Wholesale RV Corral
500 South Union Avenue
County of Kern ● Bakersfield, California
FIGURE
1
Site Location Map
SITE
N
S
EW
FIGURE
2
Site Map
Barry's Wholesale Corral
500 South Union
Bakersfield, California
0'10'20'
Scale 1" = 20ft.
Sample Location
Terrace Way
10KS-E-2', 6'
220 East Truxtun Avenue
Bakersfield, California 93305
10KN-W-2', 6'10KN-E-2', 6'
So
u
t
h
U
n
i
o
n
A
v
e
n
u
e
Newer Building
OriginalBuilding
10KS-W-2', 6'
Wrought Iron Fence
Barry’s Wholesale Corral December 2013
1. View of asphalt paving removed from surface of the two 10,000-gallon UST’s. The fill risers are in the fore-ground.
2. View of the four risers providing access to the vacuum-assist product lines.
Barry’s Wholesale Corral December 2013
3. View of the two UST’s, fill risers, vent lines, and product line risers.
4. View of Adam’s personnel cleaning the two UST’s.
Barry’s Wholesale Corral December 2013
5. Removal of the UST’s using the crane.
6. View of BFD permit number spray-painted onto tank end.
Barry’s Wholesale Corral December 2013
7. View of east sidewall depicting removal of vent lines.
8. View of west sidewall depicting removal of product lines.
Advanced Environmental Concepts, Inc.
Appendix B
UNIFORM WASTE MANIFEST
Advanced Environmental Concepts, Inc.
Appendix C
TANK DESTRUCTION CERTIFICATION
Advanced Environmental Concepts, Inc.
Appendix D
DRY ICE RECEIPT
Advanced Environmental Concepts, Inc.
Appendix E
CITY OF BAKERSFIELD FIRE DEPARTMENT PERMIT
Advanced Environmental Concepts, Inc.
Appendix F
LABORATORY REPORTS AND CHAIN-OF-CUSTODY
DOCUMENTS
Advanced Environmental Concepts, Inc.
Appendix G
PID READINGS
Advanced Environmental Concepts, Inc.
Appendix H
CERTIFIED COMPACTION REPORT