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PUBLIC HEALTH SERVI <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DMSION <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue, Third Floor - Stockton, CA 95202 <br /> 2091468-3420 ❑ <br /> PAUL SUPPLE <br /> ARCO STATION #4.493 NOV 6 �B <br /> P O BOX 6549 <br /> MORAGA CA 94570 <br /> RE: ARCO STATION #4493 SITE CODE: 1042 <br /> 205 N CENTER ST <br /> STOCKTON CA 95202 <br /> On September 14, 1998 San Joaquin County Public Health Services, <br /> Environmental Health Division (PHS/EHD) received the Work Plan for Soil <br /> Sampling During Removal of UST's, Product Lines, and Dispensers, which was <br /> submitted by SECOR International Incorporated on behalf of the above <br /> referenced site. <br /> The work plan proposes to do a limited over-excavation of soils, up to 100 cubic <br /> yards, if contaminated soils are encountered during the removal of two 12,000- <br /> gallon gasoline storage tank systems. The proposed possible over-excavation is <br /> limited to soils above current groundwater levels. If contaminated soils are <br /> encountered below groundwater, it is the recommendation of PHS/EHD that up <br /> to 250 cubic yards be excavated_ Excavated soils will be stockpiled on site <br /> pending sample analysis. If it is the intention of ARCO to re-use the stockpiled <br /> soil as fill, PHS/EHD will require one discrete soil sample per 50 cubic yards of <br /> stockpile. Following receipt of the sample analyses a decision will be made as to <br /> whether the stockpile can be placed back in the excavation. <br /> PHSIEHD approves the work plan with the above noted modification to the <br /> sampling procedure. <br /> If you have any questions or comments call Lori Duncan at (209) 468-0337. <br /> Donna Heran, REHS <br /> Director, Environmental Health Division <br /> LzrtA C{C� a L "� <br /> Lori Duncan, REHS Margaret Lagorio, REHS <br /> Site Mitigation Unit IV Supervisor, Unit IV <br /> Cc: Mark List, CVRWQCB Rusty Benkowsky, SECOR <br /> A Division of San Joaquin County Health Care Services <br />