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PUBLIC hEALTH SERN4CES 4th 7 <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Forst,M.I .,M.P.H., Health Nicer <br /> 304 Fast Weller Avenue,Third Floor•Stockton, CA 95202 <br /> 209/468-3420 FILE COP <br /> JAMES GIOTTONINI <br /> CITY OF STOCKTON DEC 14 <br /> 425 NORTH EL DORADO S' <br /> STOCKTON CA 95202 <br /> RE: Fire Station#3 SITE CODE: 1100 <br /> 1116 E. First Strut <br /> Stockton CA 95206 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) <br /> has reviewed the Quarterly Report—Julys 1998 that was submitted by Advanced <br /> G66Environmental for the.above referenced site, and has the following comments fdc: <br /> your consideration. <br /> The report documents the installation of one ground water monitoring well,on July 20; <br /> 1098, and the ground water sampling which took place on July 27, 1998. Analysis of <br /> selected soil samples from the well boring evidenced hydrocarbon contamination to 50 <br /> feet below surface grade(bsg). Analysis of the ground water sample showed <br /> hydrocarbon contamination impact to the water also, including 43 parts per billion (ppb) <br /> methyl ternary butyl ether; and 200-ppb benzene. <br /> The report recommends the continuation of quarterly ground water monitoring,with the <br /> next event scheduled for October 1998, and the installation of additionalmonitoring wells <br /> to make lateral delineation_of the dissolved hydrocarbon contamination. <br /> PHS/EHD requests that a schedule be initiated for the recommended quarterly ground <br /> water monitoring events. PHS/EHD i9quests that a work plan be.submitted by January <br /> 22 1999 for the installation of additional ground water monitoring;wells to make lateral <br /> and.vertical.:definition of hydrocarbon contamination a#this site. <br /> If you have arty questions please<call Lori Duncan at(209)468=0337. <br /> Donna Hen;:RENS, Director <br /> Environmental Health Division. <br /> � eet <br /> Loci Duncan;REHS Margare L:agorio; REHS` <br /> Site Mitigiatiorl:Unit IV Supervisor;shit IV <br /> cc: Mark Usti.CVRWQCB <br /> Bill Uttle,Advanced GeoEnvironmental <br /> A Division.d s it Joaquin County Health Cam Services <br />