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h4 KLEINFELDER <br /> 1 EXECUTIVE SUMMARY <br /> • <br /> This is a report of Kleinfelder's Pre-Abandonment Underground Storage Tank Assessment <br /> conducted at the General Mills Facility located at 2000 West Turner Road located in Lodi, <br /> California Mr Wade Broughton retained Kleinfelder to conduct the assessment based upon <br /> Kleinfelder's proposal titled "Revised Proposal, Pre-Abandonment Underground Storage Tank <br /> Soil Assessment, General Mills Facility, 2000 West Turner Road, Lodi, California", dated <br /> January 19, 1999 <br /> The proposal called for two (2) angle soil borings to be advanced at the General Mills facility <br /> (See Plate 1) in the vicinity of one non-operating underground storage tank (UST) The existing <br /> 10,000 gallon UST previously contained at one time #1 Diesel, #2 Diesel, Kerosene, and JP-4 Jet <br /> Fuel Each of the 2 soil borings was advanced vertically to a depth of approximately 25 feet <br /> below ground surface One (1) soil boring was advanced at each end of the tank location in an <br /> attempt to collect soil samples at depths greater than the UST Petroleum-like odors were noted <br /> from both soil samples collected from the 2 soil borings During advancement of the soil borings <br /> groundwater was not encountered <br /> Soil samples were collected at 5-foot intervals beginning at 5 feet from ground surface A total <br /> of 9 soil samples were collected from borings BI and B2 The soil samples submitted for <br /> analyses were collected at a depth below the bottom of the UST (between 20 to 25 feet below <br /> ground surface) A total of 4 soil samples were submitted to Sequoia Analytical Laboratory of <br /> Sacramento, California for the following analyses <br /> • TPH-G by EPA Method 8015M <br /> • Benzene, Toluene Ethylbenzene, Total Xylenes [BTEX] by EPA Method 8020 <br /> • Fuel Fingerprint by EPA Method 8015M <br /> Diesel was detected in soil samples from both borings Diesel (CIO to C24 hydrocarbon range) <br /> was present in concentrations of 4,920 mg/kg to 5,400 mg/kg Also, purgeable hydrocarbons <br /> were detected in both soil borings and ranged from 961 mg/kg to 5,560 mg/kg For a summary <br />' of the results obtained, please refer to Table 5-1 in Chapter 5 of this report <br /> The vertical or horizontal extent of contamination is unknown and beyond the scope of <br /> Kleinfeldei's approved investigation <br /> A copy of this report should be submitted to San Joaquin County Public Health Services <br /> Department, Environmental Health Division (PHSIEHD) and the State of California, Central <br /> Valley Regional Water Quality Control Board (CVRWQCB) for their review and comment <br /> 20-1417-16 EO 1/2019R338 Page 1 of 12 <br /> © 1999 Klemfelder Inc May 12, 1999 <br />