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STATE OF CALIFORNIA—HEALTH AND WELFARE AGENCY GEORGE DEUKMEJIAN, Gov�nwr <br /> DEPARTMENT OF HEALTH SERVICES <br /> TOXIC SUBSTANCES CONTROL DIVISION <br /> REGION 1 <br /> 4250 POWER INN ROAD <br /> SACRAMENTO,CA 95826 <br /> (916)739.3145 August 10 , 1989 <br /> Mr. G.L. Murdoch <br /> Southern Pacific Transportation Company <br /> Southern Pacific Building <br /> One Market Plaza <br /> San Francisco, CA 94105 / �S etll- 15th <br /> Dear Mr. Murdoch: ( ' <br /> COMMENTS ON FRENCH CAMP REMEDIAL INVESTIGATION REPORT <br /> The Department of Health Services ("Department") has reviewed <br /> the French Camp Remedial Investigation Report, dated April 5, <br /> 1989 , prepared for Southern Pacific Transportation Company by <br /> Canonie Environmental Services Corporation. <br /> The Department does not agree with the conclusion that the <br /> Southern Pacific - French Camp site no longer presents a <br /> public health or an environmental risk. More remedial <br /> investigation is needed to determine whether the quality of <br /> groundwater down-gradient from the site has been affected by <br /> contamination from the site. Installation of the three <br /> monitoring wells was for the dual purpose of discovering the <br /> direction of groundwater flow and testing the groundwater <br /> quality. Now that the primary direction of the groundwater <br /> flow has been determined, another monitoring well must be <br /> installed in a truly down-gradient position to test the <br /> down-gradient groundwater quality. <br /> Resampling of all monitoring wells is necessary to confirm the <br /> results of the first groundwater analyses. Monthly monitoring <br /> of the groundwater elevations in the wells is also necessary <br /> to track any shifting in the direction of groundwater flow. <br /> If you have any questions, please call me at (94-6 -92.4 16. <br /> Sincerely, <br /> Lorna G. Kirby <br /> Waste Management Enginee4,U G 151989 <br /> cc: See next page r-WIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br />