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Advanced <br /> GeoEnvlronmental , Inc . , -e <br /> 05 July 2001 <br /> AGE-NC Project No. 97-0327 <br /> Mr. Sam Savig <br /> San Joaquin County Public Health Services - Environmental Health Division <br /> 304 East Weber Avenue, Third floor <br /> Stockton, California 95202 .- <br /> Subject: Disposal Options for Stockpiled Hydrocarbon-Impacted Soil <br /> Grewal's Market <br /> 4100 East Fremont Street, Stockton, California <br /> Dear Mr. Savig: <br /> At the request of Mr. Rick Grewal of Grewal's Market,Advanced GeoEnvironmental, Inc. (AGE) <br /> has prepared the following hydrocarbon-impacted stockpiled soil feasibility analysis for San Joaquin <br /> County Public Health Services - Environmental Health Division (PHS-EHD) approval at 4100 East <br /> Fremont Street in Stockton, California (site). The site setting is illustrated on Figure 1. <br /> Two 6,000-gallon gasoline underground storage tanks (USTs), one 10,000-gallon diesel UST, file] <br /> dispensers and associated product lines were removed from the site in July 1998. Under the <br /> supervision of the PHS-EHD, soil samples were collected beneath the former UST locations at <br /> depths between 18 and 20 feet bsg and from stockpiled soil. The approximate locations of the former <br /> USTs, product piping and dispensers are shown on Figure 2; analytical results of USI' removal soil <br /> samples are summarized in Table 1. <br /> As a result of UST removal activities, approximately 570 cubic yards of hydrocarbon-impacted <br /> stockpiled soil remained at the site. Stockpiled soil sample analysis indicated that the soil was <br /> significantly impacted with hydrocarbons; because of the potential impact to ground water, the soil <br /> could not utilized for backfill purposes. According to San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) and California Regional Water Quality Control Board <br /> (RWQCB) - Central Valley Region policies, the hydrocarbon-impacted soil could not be used as <br /> backfill material off-site nor transported to another property owned by the generator for treatment. <br /> Therefore, the soil either had to be treated on-site or transported off-site for treatment of disposal at <br /> a regulated facility. <br /> Thereforc, AGE examined the following methods of treatment and/or disposal of the hydrocarbon- <br /> impacted stockpiled soil: <br /> 837 Shaw Road, Srockton, Caliiuriiia `�S'1 <br /> "[cicphone 1209, 'i6I-lO()( FAX (2w)i =i(,� i ] l <br />