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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY r. <br /> JOGI KHANNA M.D..M.P.H. <br /> Health Officer P <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) • Stockton, California 95201 <br /> c4�i is oR`'• <br /> (209) 468-3400 <br /> PETER D 'AMICO � <br /> AY <br /> BP OIL/THRIFTY OIL C-11 ```���•��� <br /> 10000 LAKEWOOD BLVD APR 2 4 1992 <br /> DOWNEY CA 90240 <br /> RE: BP Station #172 'SITE CODE: 1227 <br /> 7647 Pacific Ave. <br /> Stockton, CA 95207 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD) has received the "Workplan for Additional Site <br /> Assessment" dated April 14 , 1992 submitted by Thrifty Oil Company <br /> and has the following comments; <br /> On October 18 , 1991 PHS/EHD directed you to submit quarterly <br /> monitoring reports on a regular basis with the first report due <br /> January 10 , 1992 . No report has been received for the fourth <br /> quarter ending December 31, 1991 . <br /> A quarterly report for the first quarter of 1992 for the period <br /> ending March 31, 1992 is now due and must be received prior to <br /> any approval of additional workplans . <br /> The placement and construction of additional groundwater <br /> monitoring wells is based on data received from previous <br /> investigation(s) and groundwater depths and gradients included in <br /> quarterly reports. Without such data, proposals for pending <br /> investigations cannot reflect adaptations that may be needed to <br /> adapt to changing subsurface conditions. <br /> PHS/EHD utilizes "Regional Board Staff Recommendations for <br /> Initial Evaluation and Investigation of Underground Tanks" and <br /> again recommends you utilize that format for submittals and <br /> reports . <br /> Please include in your report any manifest or documentation for <br /> soils and monitoring well water removed from the site already and <br /> continue to include this information as reports and workplans are <br /> submitted. <br /> A survey of wells within 2000 feet of the site shall be initiated <br /> and sampling results of the closest wells shall be submitted in <br /> your next report. <br /> A Division of fan Joaquin Counry Health Gare 5ernces �� <br />