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06/05/2000 12 43 2094683433 FIFTH FLOOR PAGE 03 <br /> RAMAGE <br /> ENVIRONMENTAL Sacramento Office <br /> Post Office Box 869 <br /> Rancho Aftrieta. CA 95683 <br /> Tel (916) 354.3Z50 <br /> Fax(916) 354-1786 <br /> Apnl 2A, 20a0 <br /> ENVIRONMENTAL HEALTH DIVISION <br /> 304 E Weber Ave Third Floor <br /> P O Box 388, Stockton CA 95201-0386 <br /> Approved <br /> - <br /> Denred r <br /> Mr Harlin Knoll, Sr.R E H S CrOnditions �/ �UM,d <br /> San Joaquin County PHS/FHD J, <br /> 304):cast Weber Avenue, 3rd Floor Date <tJID6 by <br /> ' Stockton, CA 95201-0388 <br /> Re Fetter Work plan,CPT Confirmation Soil and Groundwater Sampling <br /> ' San Joaqum Catholic Cemetery, Stockton, California <br /> USTCF Claim#1092 <br /> ' Dear Mr Knoll <br /> On behalf of the San Joaquin Catholic Cemetery,Ramage Environmental is pleased to <br /> provide the Sari Joaquin County Public Health Services Environmental Health Division <br /> (PHS/EHD) with this letter work plan outlining the proposed soil and groundwater sampling <br /> and analysis tasks for the above-referenced project This work plan was requested by <br /> PHS/EHD in their directive, dated January 27,2000 <br /> ' <br /> Project Ob ectives <br /> The objectives of the proposed sampling and analysis are to confirm the cleanup of vadose <br /> zone soil currently being remednated by soil vapor extraction and to evaluate the vertical <br /> ' extent of impacted groundwater-bearing zones beneath the former underground storage tanks <br /> (UST) To achieve these objectives, a cone penetrometer test(CPT) ng will be used to <br /> collect multiple soil and groundwater samples from one location in the vicinity of the former <br /> USTs The location of the proposed sampling location is shown on the attached Figure 1 <br /> Relevant Previous Work <br /> - gasoline UST <br /> On November 17, 19 $ <br /> ' 89 one 500-gallon gasoline UST and one 1,000 gallon <br /> were removed from the site in response to a failed tank tightness test According to the <br /> inspector's report,a hole approximately 5-inches in diameter and numerous pin-sized holes <br /> II p <br /> were observed in the tank bottom Three soil samples collected from beneath the former <br /> USTs contained up to 4,200 milligrams per kilogram (mg/kg)of Total Petroleum <br /> Hydrocarbons(TPH)-as-Gasoline and 21 mg/kg of benzene. These analytical results are <br /> summarized in the attached Table l <br />