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• The nearest identified sensitive receptors to the site include a well located 600 feet to the
<br /> • south and a municipal well located approximately 650 feet to the north Based on overall
<br /> distance, gradient direction, and well construction, the risk to these potential receptors is
<br /> considered minimal
<br /> • The site does not appear to pose a significant threat to human health or the environment
<br /> • Numerous properties in the vicinity of the site have historically contained USTs, with six
<br /> LUST properties located within 500 feet of the site in the downgradient or crossgradient
<br /> directions
<br /> • There is a strong possibility that impacted groundwater encountered at the site originated
<br /> from off-site sources
<br /> 5.0 References
<br /> Advanced GeoEnvironmental, Inc (2001 a), Interim Soil Excavation and Quarterly Report—
<br /> Fourth Quarter 2000, Former Tracy Diner, 95 West 11th Street, Tracy, California, January 29,
<br /> 2001
<br /> Advanced GeoEnvironmental, Inc (2001 b), Quarterly Report—Second Quarter 2001, Former
<br /> Tracy Diner, 95 West 11th Street, Tracy, California, August 7, 2001
<br />�• Cambria(1996), Site Summary and Closure Path Recommendations, Former Chevron Station 9-
<br /> 0959, 103 West 11th Street, Tracy, California, November 1, 1996
<br /> Del-Tech (1996), Groundwater Field Monitoring Summary Report, Stan Morri Ford, 104 West
<br /> 11th Street, Tracy, California, October 1996
<br /> Gettler-Ryan Inc (1997), Fourth Quarter Groundwater Monitoring& Sampling Report, Former
<br /> Chevron Service Station 9-0959, 103 West IIth Street, Tracy, California, January 21, 1997
<br /> Gettler-Ryan Inc (2001x), Monitoring Well Installation Report, Former Unocal Service Station
<br /> No 0123, 1034 Central Avenue, Tracy, California, January 17, 2001
<br /> Gettler-Ryan Inc (2001b), Request for Closure, Former Unocal Service Station No
<br /> 0123, 1034
<br /> Central Avenue, Tracy, California, April 19, 2001
<br /> HK2, Inc ,Soil Profiling, Excavation, and Sampling Activities at Thiels Goodyear, 1131 Holly
<br /> Drive, Tracy, California, July 17, 1997
<br /> IT Corporation (IT, 2002a), Underground Storage Tank Removal Report, Pacific Bell Facility,
<br /> 10 East 12th Street, Tracy, California, April 2002
<br /> • CNCD104 28-031SHAFE\UST103-0027 doc 15
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