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0 i joslyz <br /> D <br /> DEL-TECH Geotechnical Support Services NOV 1 71993 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> Mike Infurna, REHS November 16, 1993 <br /> San Joaquin County Public Health Dept. <br /> 1601 East Hazelton Ave. / P.O. Box 2009 <br /> Stockton, CA. 95201 <br /> RE: SADDLE CITY SITE 6421 PADDOCK PLACE LODI, CA. <br /> Mr. Infurna, <br /> Enclosed is the monitoring well summary report of the October 7 , 1993 event at the above <br /> referenced site. Upon your review you will note that Monitoring Well #3 has a concentration of <br /> benzene at 1.9 Parts Per Billion (PPB) in the first sample (3A) and a 1.0 PPB concentration in <br /> the duplicate sample (313), which exceeds the San Joaquin Public Health threshold of .5 PPB. <br /> Our goal now is to recommend a course of action that will satisfy the criteria of the San Joaquin <br /> County Public Health Department (SJCPH) as is deemed necessary to authorize the site's closure <br /> or possibly a conditional closure. <br /> In discussing the options to remedy the issue of the low level of benzene in the water at MW-3 <br /> we have decided to approach the situation in either of two ways, listed below. <br /> The attached letter by Geological Technics provides an outline of the two proposed alternatives. <br /> 1.) Site Risk Assessment Study <br /> 2.) Aquifer Testing / Groundwater Pumping & Monitoring Routine (48 Hour Minimum) <br /> At the request of my client Mr. Cecil Dillon, we would like to schedule a meeting between <br /> ourselves and SJCPH to discuss these options. My associate Ray Kablanow of Geological <br /> Technics will be present along with Mr. Dillon. We are requesting that you and either Diane <br /> Henson or Ron Valinoni be present at this meeting. <br /> Please contact me upon receiving the attached report so as to schedule our meeting at the earliest <br /> time available. <br /> Sincerely, <br /> , <br /> Donald E. Light <br /> 10624 Olive Avenue, Oakdale, CA 95361 (209) 847-8757 • Fax (209) 847-7744 <br />