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PUBLIC rIEALTH SERA fCES uep '� <br /> SAN JOAQUIN COUNTYENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P H.. Acting Health Officer 445 N San loaqum Street 0 P O Box 388 a Stockton, CA 95201-0388 <br /> (2091468-3420 <br /> TREVOR SANTOCHI <br /> CRC ENVIRONMENTAL <br /> 17875 VON KARMAN SUITE 200 r J 2 (, 1994 <br /> IRVINE CA 92714 <br /> RE Bridges Specialty Center SITE CODE 505361 <br /> 2233 Grand Canal Boulevard <br /> Irvine CA <br /> j San Joaquin County Environmental Health Division(PHSIEHD) has reviewed the Workplan For <br /> Groundwater Investigation submitted with the addendum to the May 11, 1994 workplan dated <br /> September 22, 1994 by CRC Environmental Risk Management, Inc for the above referenced <br /> site <br /> The workplan states that the annular space above the bentorute seal will be filled with cement <br /> grout PHSIEHD requires the grout used to fill the annular space in a monitoring well above the <br /> bentonite seal to be equivalent to a 9 sack cement slurry placed from the bottom up by the tremie <br /> method <br /> The section of the workplan discussing analytical methods for groundwater analysis states that <br /> the water samples will be analyzed for Total Petroleum Hydrocarbons as Gasoline The history <br /> of this site suggests that the hydrocarbon present in the elevator piston area is hydraulic fluid <br /> PHSIEHD recommends analysis of water samples from the monitoring wells by EPA method <br /> 5520 for total oil and grease to detect the presence of any hydraulic fluid in the groundwater <br /> beneath the site <br /> i <br /> i <br /> PHSIEHD issued permit #4347 on October 4, 1994 to Clearhart Construction and Drilling for <br /> the installation of three monitoring wells at the above referenced site <br /> For further information please contact Steven Sasson at (209) 468-3459 <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Ss{ven Sa o e r RE Diane M Hinson, REHS <br /> . Site Mitigation Unit Supervisor <br /> ni .um 44 r,,n 14ia4um( mino, HtAh (.,rE 1tr%Kt% <br />