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Wells Fargo Bank, Stockton Branch
<br /> September 6, 1996
<br /> Page 4
<br /> Agency Contact
<br /> Mr. Chris Zouboulakis of Building Analytics visited the offices of the SJCEHD on August
<br /> 26, 1996. The purpose of this agency contact was to interview Ms. Tuskatte of the
<br /> agency, and to review environmental reports regarding the subject property and the nearby
<br /> LUST sites. Building Analytics was informed that no records indicating the installation,
<br /> abandonment or removal of USTs at the subject property are on file with this agency. In
<br /> addition, the latest available records were reviewed for the following sites in the vicinity of
<br /> the subject property which were identified as potential sources of contamination during the
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<br /> research:
<br /> • Knowles/Roek Property, 102 South Wilson Way
<br /> • Top Filling Station, 101 South Wilson Way
<br /> • City of Stockton Right of Way, 102 South Wilson Way
<br /> Roek Site
<br /> The Roek site is located at 102 South Wilson Way, immediately southeast of the subject
<br /> property. According to the latest groundwater monitoring results, elevated levels of
<br /> petroleum hydrocarbons were detected in groundwater samples collected from all wells,
<br /> except MW-7. Wells MW-11 and MW-12, located east of the former underground storage
<br /> tanks, had total petroleum hydrocarbons as gasoline (TPH-g) concentrations of 76 and 190
<br /> parts per billion respectively, and BTEX were non-detectable. The highest concentrations
<br /> of TPH-g and BTEX were detected in samples collected from wells MW-2 and MW-13,
<br /> located southeast and east of the former tanks. Attached please find a copy of the latest
<br /> groundwater monitoring report.'
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<br /> Top Filling Station
<br /> The Top Filling Station site is located at 101 South Wilson Way, immediately south of the
<br /> subject property. According to the latest groundwater monitoring results, TPH-g were
<br /> ,r detected in groundwater samples collected from wells MW-2, MW-3, and MW-5 at
<br /> concentrations of 860 parts per billion, 150 parts per billion and 13,000 parts per billion,
<br /> respectively. In addition,benzene was detected in groundwater samples from wells MW-2
<br /> through MW-5 at concentrations of 83 parts per billion, 2.7 parts per billion and 2,000
<br /> parts per billion, respectively. According to the same report, MW-5, which is a well
<br /> located at an off-site location along Market Street and immediately adjacent to the subject
<br /> site, had levels of TPH-g and Benzene of 13,000 parts per billion and 2,000 parts per
<br /> billion, respectively. Attached please find a copy of the latest groundwater monitoring
<br /> report.2
<br /> ` Ground Zero Analysis,Inc.,Second Groundwater Monitoring and Sampling Report,
<br /> —' Knowles/Roek Property, 102 South Wilson Way, Stockton, California,May 21, 1996.
<br /> 2 Advanced GeoEnvironmental;Inc., Quarterly Report-April 1996, Top Filling Station, 101 South
<br /> Wilson Way, Stockton, California,June 12, 1996.
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