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ARCHIVED REPORTS XR0010915
EnvironmentalHealth
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EMBARCADERO
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3500 - Local Oversight Program
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PR0544727
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ARCHIVED REPORTS XR0010915
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Last modified
8/1/2019 4:56:58 PM
Creation date
8/1/2019 4:22:45 PM
Metadata
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Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0010915
RECORD_ID
PR0544727
PE
3528
FACILITY_ID
FA0003830
FACILITY_NAME
VILLAGE WEST MARINA
STREET_NUMBER
6649
STREET_NAME
EMBARCADERO
STREET_TYPE
DR
City
STOCKTON
Zip
95219
APN
09815006
CURRENT_STATUS
02
SITE_LOCATION
6649 EMBARCADERO DR
P_LOCATION
01
P_DISTRICT
002
QC Status
Approved
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EHD - Public
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J <br /> 2.0 SITE OVERVIEW <br /> 2.1 History of Site Work <br /> On April 21, 1993, two, 10,000-gallon capacity, leaded gasoline, underground storage tanks <br /> and one, 5,000-gallon capacity, diesel underground storage tank (USTs)were removed from <br /> the subject site. Evax Technologies, Inc. inspected the tanks and collected soil samples from <br /> beneath the ends of each leaded gasoline UST, and one sample from beneath the fill end <br /> of the diesel UST immediately subsequent to removal. All samples were retrieved from the <br /> floor of the excavation at 13.5 feet bsg. Additionally, two soil samples were collected from <br /> the soil stockpile flanking the excavation. The stockpile was moved to the south end of the <br /> 1 property prior to backfill'of the excavation in May, 1994. <br /> Analytical results of the soil samples revealed that elevated levels of Total Purgeable <br /> Hydrocarbons as gasoline (TPH-g) and total extractable petroleum hydrocarbons as diesel <br /> (TEPH-d), volatile aromatics benzene, toluene, ethylbenzene, xylenes (BTEX), and lead <br /> were present in the samples collected from the excavation and from the stockpile. <br /> The overexcavation of the former tank pit was initiated on July lb, 1993 by equipment <br /> operator Mark Burns and a W.W. Irwin, Inc. staff geologist as requested and contracted by <br /> the Pegasus Group. The work was periodically supervised by Mr. Michael Collins, SJCPHS- <br /> EHD Registered Environmental Health Specialist. As the excavation proceeded, soil <br /> _., samples were collected for lithologic analysis and organic vapor analysis (OVA) meter <br /> _1=> readings were taken in order to direct the excavation by determining the level of <br /> contamination and the direction of migration. The excavation was expanded slightly in all <br /> directions from the original tank pit to an area approximately 35 feet square and to a depth <br /> of approximately 18 to 20 feet below surface grade. The excavation was halted when the <br /> excavator reached the limits of its extension and when the northern wall became <br /> inaccessible. Ground water was not encountered. An estimated 260 cubic yards of newly- <br /> excavated soil was removed from the tank pit and stored at a location on the south side of <br /> the property, and separately from soil stockpiled during the tank removal operation. <br /> Upon completion of the excavation activities, two bottom- and four side-wall samples were <br /> gathered in the excavator bucket as directed by Mr. Collins. The soil samples were then <br /> retrieved from the bucket of the excavator by driving a clean hand-sampler containing a <br /> sterile, two-inch diameter, six-inch-long, stainless steel tube into the gathered soil. The <br /> --' sample tube was immediately sealed with TeflonTM tape, capped, taped, labeled, and placed <br /> on ice in a cooler for transport to a California Department of Health Services-certified <br /> . laboratory for analysis. Appropriate chain-of-custody procedures were followed during <br /> sample handling. <br /> Each of the samples was analyzed for TPH-g by EPA Method 8015, BTEX analytes by EPA <br /> Method 8020, and organic lead per the California Leaking Underground Fuel Tank manual <br /> (State Water Resources Board, 1989). <br /> W.W.Irvin,Inc. <br /> Project No.33016.03 <br /> July 1994 2 <br /> i <br />
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