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:. . PUBLiC HEALTH SEICES <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA M.D.,M.P.H. <br /> Health Officer <br /> P.O. Box 2009 (1601 Past Hazelton Avenue) • Stockton, California 95201 <br /> C4�•fpoP�;p <br /> (209) 468-3400 <br /> July 3, 1989 V ❑ <br /> Union Ice Company v <br /> 1320 W. Weber Ave <br /> Stockton CA 95203 <br /> RE: Review of workplan 1320 W. Weber Ave, Stockton <br /> Don' s Distributing Company Site Code: 1283 <br /> Please be advised that this office has reviewed the above referenced workplan. <br /> Our review has been some what hindered due to preliminary information omitted <br /> from the workplan. Please refer to the attached check list and also to <br /> appendix A of the Tri—Regional Staff Recommendations for guidance in proper <br /> format. <br /> In addition to the lack of preliminary information, we have the following <br /> comments regarding the purposed workplan: <br /> 1. URS Consultants should evaluate the possibility of water level <br /> fluctuation to ensure that water levels will not fall below or rise <br /> above the screen intervals suggested in the workplan. We further <br /> suggest that URS Consultants review the MacCormick & Baxter reports to <br /> determine proposed depths of deep and shallow monitoring wells. <br /> 2. The proposed workplan does not include a sampling plan. Selected soil <br /> samples shall be submitted to the laboratory for benzene, toluene, <br /> xylene, & ethyl benzene and total petroleum hydrocarbons detected as <br /> gasoline and diesel. Attached is the Minimum Verification Lab Analysis <br /> fora suggesting those recommended lab analysis. URS Consultants should <br /> specify field screening techniques for selecting soil samples for <br /> submittal to the laboratory. <br /> 3. Residual contaminates remaining at the conclusion of the investigation <br /> attempt shall be addressed in a soils remediation plan. The soil <br /> remediation plan shall include a feasibility study for each option <br /> proposed. <br /> 4. Prior to performing the 24 hour pump test, in order to eliminate the <br /> possibility of drawing free product lowering to the aquifer, it is <br /> recommended that free product be removed during the investigative phase <br /> of the work being conducted. <br /> A Division of San Joaquin County Health Care Services <br />