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k4 KLEINEELDER <br /> 3. BACKGROUND <br /> ' General Mills operates a food production facility located at 2000 West Turner Road in Lodi, <br /> California The facility includes food production preparation facilities, an office, fuel storage <br /> ' areas, silos, parking areas, etc , for food production purposes <br /> Kleinfelder previously reviewed pertinent documents and information related to the USTs on the <br /> ' site provided by General Mills Based on Kleinfelder's review of this information, Kleinfelder <br /> understands the UST area discussed in this report is located south of the office and approximately <br /> 10 feet north of Building No 86 (See Plate 1) The two USTs were oriented north to south and <br /> situated side by side on an approximate 30 foot by 30-foot reinforced concrete pad At one time, <br /> the two 10,000-gallon USTs reportedly contained diesel, kerosene and/or JP-4 Jet fuel <br /> An unauthorized release report was prepared by county employee Mr William R Snavely, dated <br /> January 14, 1988 This report indicated that a leak was discovered due to inventory <br /> discrepancies and that approximately 123 gallons of JP1 Fuel was estimated to have been <br /> released Comments in this release report stated the following "Manager discovered a <br /> discrepancy in inventory and called ITT Tank Service to check system, leak in filler pipe <br />' observed, Stockton Service Station advised that the tank be removed, tank is being pumped out <br /> and to be empty 1112188 " <br /> According to a previous EHD inspection report, a single 10,000-gallon fiberglass UST was <br /> removed from the site on January 29, 1988 Apparently, the tank was removed due to an <br /> unauthorized release The tank removed was described in the inspection report as being the <br />' easternmost tank of two USTs located side by side and north of a"new"building The bottom of <br /> the tank was at a depth of approximately 12 feet bgs and located on a large concrete pad Two <br /> bottom soil samples were collected at each end of the tank and at the ends of the concrete pad, at <br /> approximate depths of 14 feet bgs <br /> Kleinfelder reviewed analytical data reports dated January 29, 1988 prepared by California Water <br /> Labs, Inc associated with these two samples The two soil samples were analyzed for total <br /> petroleum hydrocarbons as referenced to gasoline (TPH-G), diesel (TPH-D), kerosene (TPH-K), <br /> motor oil (TPH-MO), and benzene, toluene and xylenes (BTX) The northernmost soil sample <br /> was reported by the laboratory as "none detected" for the requested analyses at or above <br /> laboratory reporting limits TPH-K was the only analyte detected at 19 0 mg/kg from the soil <br /> sample collected from the southern end of the tank <br /> The General Mills facility utilized this UST and the previously removed UST for fuels used to run <br /> the turbines in their food production process Kleinfelder understands that currently there is only <br /> one UST in place(western side of cement pad) and that the UST has been emptied of all contents, a <br /> condition required before drilling could commence <br /> Kleinfelder conducted a soils assessment in the vicinity of the existing UST based upon our <br /> proposal titled "Revised Proposal, Pre-Abandonment Underground Storage Tank Assessment, <br /> General Mills Facility, 2000 West Turner Road, Lodi, California," dated January 19, 1999 Two <br /> 28209 T03/ST04R1402/DH Iv Page 3 of I I <br /> ©2004,Kleinfelder,Inc October 20,2004 <br /> 1 <br />