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Purgeable TPH, BTEX, and EDB were not reported in the samples. Lead was reported in <br />both of the stockpile samples, but neither of the excavation samples. Samples #70984W <br />and #70985E were reported to contain 6 mg/kg and 14 mg/kg of lead respectively. <br />Based on SJCEHD requirements, an original set of analytical results were sent directly to <br />SJCEHD by the laboratory. A copy of the analytical results is attached for your review and <br />records. <br />CONCLUSIONS AND RECOMMENDATIONS <br />On April 28, 1992, Scrivner removed the underground storage tank (T1) north of the <br />engineering offices at the San Joaquin County General Hospital. The tank was removed <br />under permit by SJCEHD and the fire department. <br />After removal, the tank was visually inspected. No holes, dents, tears, or scrapes were <br />observed. The tank was subsetly transported under manifest by Erickson to their <br />facility in Richmond, California, Zrfodestruction. <br />Two samples were collected from the soil stockpile and two soil samples were collected <br />from the excavation. The samples were analyzed for purgeable TPH, BTEX, EDB, and <br />total lead. With the exception of lead in the stockpile samples, the laboratory did not <br />detect the requested analytes in the submitted samples. The reported concentrations of <br />lead are below State action levels; and, based on Kleinfelder's experience, represent <br />naturally occurring lead concentrations in Central Valley soil. <br />Based on the analytical results, the excavation was backfilled with pea gravel and paved to <br />match the existing road surface, and the stockpiled soil was removed as clean fill by J.T. <br />Paving for use on their yard in Stockton, California. <br />Based on the apparent condition of the tank and the analytical results, Kleinfelder does not <br />recommend additional assessment or remediation of the Tank Tl site. A copy, of this letter <br />report be sent to SJCEHD to obtain closure of the site. <br />Sincerely, <br />KLEINFELDER, INC. <br />2- _ <br />G � <br />Dana W. Booth <br />Projec�eologist <br />Pric. Findlay, R.G. <br />Senior Geologist <br />DWB:ESF:mb <br />Attachments <br />cc: Mr. William Snavely <br />FR3-92-34 Page 3 of 3 <br />Copyright 1992 Meinfelder, Inc. <br />KLEINFELDER 3077 Fite Circle, Sacramento, CA 95827 (916) 366-1701 <br />