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L k% KLEINFELDER <br />May 1, 1990 <br />File No.: 24-320066-A00 <br />Mr. Kurt Neuharth <br />Brea Agriwltural Service, Inc. <br />Post Office Box 201059 <br />Stockton, California 95201 <br />Subject: <br />Soil Sampling Beneath <br />1755 Broadway, <br />Stockton, California <br />Dear Mr. Neuharth: <br />RECEIVED <br />MAY 4 1990 <br />ENVIRONMENTAL HEALTH <br />PERMIT/SERVICES <br />Former Underground Fuel Tank <br />In February, 1990, Kleinfelder was retained to collect soil samples beneath the former <br />location of an underground fuel storage tank at 1755 Broadway in Stockton, California. <br />This letter presents the sampling procedures, the soil types encountered, and the analytical <br />results. <br />Briefly stated, two soil samples were collected and analyzed for total hydrocarbons, <br />benzene, toluene, ethyl benzene, and xylenes (BTEX), ethylene dibromide (EDB), and <br />total lead. Toluene, and lead were reported near the method detection limits, and the <br />other results were none detected. In our opinion, the lead concentrations are <br />representative of background level concentrations commonly encountered in Central <br />Valley soils. <br />Based on the analytical results and field observations, Kleinfelder does not recommend any <br />future assessment at the site. <br />FIELD PROCEDURES <br />On April 5, 1990, Kleinfelder collected two soil samples beneath the former location of an <br />underground fuel storage tank at 1755 Broadway, Stockton, California (see Plate 1). Ms. <br />Kasey Foley of San Joaquin County Public Health Services was present for the sampling <br />and specified the sample locations (see Plate 2) and the required analyses. The samples <br />were collected from soil retrieved from the sampling depth by backhoe. The soil was silty <br />sand with no evidence of hydrocarbons. Ground water was not encountered during <br />excavation. <br />The samples were analyzed by Agriculture and Priority Pollutants Laboratories, Inc. <br />(ADPL), of Fresno, California. APPL is certified by the California Department of Health <br />Services to perform the required analyses. The sample locations, analytical methods and <br />results are shown on Table 1. The laboratory results are attached. <br />MscLct-003-90-078 <br />KLEINFELDER 1975 E Street, Fresno, CA 93706 k209) 486-0750 <br />