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a <br /> ., Emcon <br /> 1433 North Market Boulevard • Sacramento California 95834-1943 • (916)926-3300 • Fax(916)928-3341 <br /> ob <br /> January 28, 1998 <br /> Project 22605-101 02 <br /> Mr Travis Bryant <br /> Interstate Brands Corporations <br /> 12 East Armour Boulevard <br /> Kansas City, Missouri 64111 <br /> Re Fourth Quarter 1997 Status Report for the Former Dolly Madison Facility, Located at <br /> 1426 South Lincoln Street, Stockton, California <br /> Dear Mr Bryant <br /> At the request of Interstate Brands Corporation, EMCON previously conducted an environmental <br /> investigation and currently performs quarterly groundwater monitoring at the subject site (see <br /> Figure 1) EMCON has prepared this status report on the work conducted dung the fourth <br /> quarter 1997 Groundwater monitoring consists of measuring depths to groundwater and collecting <br /> groundwater samples from the wells for subjective and laboratory analyses <br /> BACKGROUND <br /> The site is located approximately 200 feet south of the intersection of Charter Way and <br /> Lincoln Street 1n Stockton, California On July 29, 1988, SEMCO of Modesto, California, <br /> observed the removal of a 1,000-gallon underground storage tank (UST) Based on analytical <br /> results of soil samples collected from beneath the former UST, residual hydrocarbons were <br /> present Total petroleum hydrocarbons as gasoline (TPHG) were detected at a concentration of <br /> 95 parts per million Benzene, total petroleum hydrocarbons as diesel, kerosene, and motor oil <br /> were below laboratory detection limits The approximate former UST location relative to site <br /> structures is shown on Figure 2 <br /> In the vicinity of the subject property is a former ARCO Service Station, a Chevron Service <br /> Station, a Texaco Service Station, The Transmission Shop, and a former Colombo Bakery, which <br /> all have had previously or currently have USTs Based on data collected from subsurface <br /> investigations performed at the former ARCO Service Station, the Chevron Station, The <br /> Transmission Shop, and the Texaco Service Station (located at the corners of Charter Way and <br /> Lincoln Street), residual and dissolved hydrocarbons have been detected beneath these facilities, <br /> and a commingled plume exists beneath Charter Way and Lincoln Street The groundwater flow <br /> direction near the intersection has generally been toward the east and northeast The main <br /> hydrocarbon constituent detected in groundwater is gasoline The groundwater plume has not <br /> . been delineated, but it extends downgradient as far as Van Buren Street <br /> SAC1N IPJ212605126051010 2AB-9811baccus i <br />