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corporate Offices 41674 Christy Street, Fremont, CA 94538-3114 (415) 659-04u4 Fax: (415) 651-4677 Contr. Lic. No. 464324 <br />April 26, 1989 <br />San Joaquin Local Health District <br />Environmental Health Division <br />1601 East Hazelton Avenue <br />P. O. Box 2009 <br />Stockton, CA 95201 <br />Attention: Ms. Diane Hinson <br />Subject: Roberts Oil Facility <br />930 Victor Road, Lodi, California <br />Project Number 1628G <br />Dear Ms. Hinson: <br />♦♦ ensco <br />♦♦♦♦ environmental <br />♦ services, inc. <br />r.A sxjlyt�j <br />APR 21-1989 <br />ENVIRONMENTAL HEALTH <br />PERMIT/ SERVICES <br />At the request of Roberts Petroleum Services, Ensco Environmental <br />Services, Inc. (EES) is submitting permit applications in order to <br />conduct an additional investigation and initial remedial work at the <br />subject site in Lodi, California. <br />Exploratory borings drilled on the site in 1985 by J. H. Kleinfelder <br />and Associates revealed the presence of petroleum hydrocarbon <br />contamination in the soil adjacent to the storage tank complex <br />transfer block. However, of the 38 soil samples collected, only 11 <br />were analyzed by a laboratory. As a result, a complete <br />contamination profile was not obtained. <br />EES proposes to drill additional exploratory borings in order to <br />further define the limits of the contamination. The proposed boring <br />locations are shown on Figure 1. During the drill operations soil <br />samples will be collected at 5 -foot depth intervals. All soil samples <br />collected will be qualitatively screened for the presence of petroleum <br />hydrocarbons using a portable photo ionization detector (PID). <br />Samples which display evidence of contamination will be submitted <br />