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ARCHIVED REPORTS_XR0004384
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PR0539293
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ARCHIVED REPORTS_XR0004384
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Last modified
11/20/2019 3:29:04 PM
Creation date
11/20/2019 3:21:01 PM
Metadata
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Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0004384
RECORD_ID
PR0539293
PE
2957
FACILITY_ID
FA0022465
FACILITY_NAME
VALLEY MOTORS
STREET_NUMBER
800
Direction
E
STREET_NAME
MAIN
City
STOCKTON
Zip
95202
CURRENT_STATUS
01
SITE_LOCATION
800 E MAIN
P_LOCATION
01
P_DISTRICT
001
QC Status
Approved
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EHD - Public
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1 I <br /> • 1.0 INTRODUCTION <br /> Valley Motors operates a wholesale used car dealership at 800 East Main Street in Stockton, <br /> California and is owned by Mr Andrew Hyduke Investigation of the extent of hydrocarbon <br /> contamination beneath the Valley Motors property has been directed by San Joaquin County Public <br /> Health,Services, Environmental Health Division(PHS/EHD) ' <br /> 2.0 BACKGROUND <br /> 21 Site Location and Description <br /> The site is located several blocks east of downtown Stockton and several blocks north of Mormon <br /> Slough (Figure 1) It occupies an L-shaped parcel of land at the corner of Main and Grant Streets <br /> The area is zoned commercial and light industrial Small businesses and a vacant lot are located to <br /> the north, across Main Street, and a paint company is located to the west, across Grant Street The <br /> topography in the area is flat <br /> 2.2 Previous Work <br /> It is our understanding that two UST's were removed from the site by Siebold Corporation in 1990 <br /> The tanks were located beneath the sidewalk along Grant Street (Figure 2) They were reportedly <br /> . used to store gasoline, although no fuel dispensers were present when the tanks were removed <br /> However,the tanks had not been in use since about 1987,when Mr Hyduke acquired the property <br /> William Hunter & Associates conducted a soil investigation in 1994 and drilled 5 borings (Figure <br /> 2) Forty soil samples were collected for analysis, but only 4 of these contained hydrocarbons at <br /> concentrations above detectable limits The hydrocarbons were reported by FGL Laboratory to be <br /> within the compositional range of Stoddard Solvent, although specific carbon ranges were not <br /> reported The maximum depth at which hydrocarbons were detected was approximately 25 feet <br /> Upgradient Environmental installed groundwater monitoring well VM-1 in September 1995 <br /> Contaminated soil was detected at a depth of 25 feet, and groundwater samples collected in <br /> September and October were also contaminated Gasoline, diesel, BTEX, and several chlorinated <br /> hydrocarbons were detected in the groundwater <br /> In July 1996, three soil borings were drilled and two were converted to monitoring wells <br /> Contaminated soil was encountered in two of`these, and one or more hydrocarbon contaminants <br /> were detected in water samples from all three, as well as in the previously drilled well (VM-1) The <br /> resulting data helped to partially define the limits of soil contamination, but the limits of <br /> groundwater contamination were not reached <br /> A soil vapor survey was conducted in March 1995, in order to better define the extent of near- <br /> surface soil contamination This survey was followed by the drilling of two new soil borings to <br /> 2 <br />
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