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at <br /> Working To Restore Nature <br /> ci t <br /> pill', <br /> 1 36 <br /> 1710 Main Street <br /> Escalon, CA 95320 <br /> Phone (209) 838-3507 <br /> FAX (209) 838-3509 <br /> March 4, 1994 <br /> Ms Mary Meays <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P O Box 2009 <br /> Stockton, CA 95201 <br /> Subject Soil Excavation Report <br /> McAllister Trust <br /> 601 S Ventura St , Stockton, CA <br /> Dear Ms Meays <br /> This letter report is submitted to summarize excavation activities conducted at the above <br /> referenced site (Figure 1) The excavation was performed to remove hydrocarbon impacted soil <br /> associated with underground fuel storage tanks formerly located on the subject site <br /> SITE BACKGROUND <br /> On March 9, 1989, two underground fuel storage tanks were removed from the site <br /> Hydrocarbon contamination was noted in soil samples collected from the east side of the tank <br /> pit excavation, however, a water sample collected from the southwest corner of the pit did not <br /> record any fuel constituents above method detection limits Laboratory results are summarized <br /> in Table 1 (soil results) and Table 2 (groundwater results) Due to the elevated concentrations <br /> of petroleum hydrocarbons in the soils, further investigation was required <br /> On October 25, 1989, the floor of the former tank pit was deepened from 10 to 18 feet below <br /> grade using a tracked excavator Soil samples collected from the floor and sidewalls of the pit <br /> contained very low to non-detectable levels of petroleum hydrocarbons Laboratory results are <br /> summarized in Table 1 <br /> 1500591SXR-0194 FNG <br />