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. STATE OF CALIFORNIA-Environmental Prot�,i Agency PETE WILSON,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> 3443 Routier Road,Suite A <br /> Sacramento,CA 95827-3098 <br /> PHONE: (916)255-3000 <br /> FAX- (916)255-3015 - <br /> t <br /> APR 0 5 1^^? <br /> 2 April 1993 ENVIRON-!,DNTAL H'ALTH <br /> PUM / 1�1 <br /> Mr. David Atwater <br /> California Fuels <br /> Post Office Box 1270 <br /> Stockton, CA 95201 <br /> CALIFORNIA FUELS - 838 MOKELUMNE STREET, WOODBRIDGE, SAN JOAQUIN COUNTY - <br /> CLOSURE <br /> Staff has reviewed your Additional Site Investigation Results Report submitted <br /> on 24 February 1993. Horizontal and vertical definition of the spilled diesel <br /> is complete. Additional investigation shows diesel fuel is present in native <br /> soils between 29 - 34 feet below the ground surface at this site. In August <br /> 1990 approximately 2,850 cubic yards of diesel contaminated soils above this <br /> zone were bioremediated to below detection limits and replaced into the former <br /> excavation. A year and one-quarter's results of monitoring during the period <br /> of May 1989 and April 1990 indicated no detectable impact to ground water by <br /> petroleum hydrocarbons. Considering this information, the age of the spillage <br /> at the property, the semi-confined conditions of ground water underlying this <br /> site, and that future land use at the site will provide an asphalt cap and/or <br /> buildings it is our position that no further cleanup action is required at <br /> this time. <br /> This certification does not relieve responsible parties of any obligations or <br /> responsibilities mandated under the California Health and Safety Code or the <br /> California Water Code if existing, additional , or previously unidentified <br /> contamination at the site caused or threatens to cause pollution or nuisance, <br /> or is found to pose a threat to public health. Nothing in this certification <br /> shall constitute a satisfaction or release from liability for any conditions <br /> or claims arising as a result of past, present, or future operations at the <br /> site. Nothing in this certification is intended to limit the rights of any <br /> parties with respect to claims arising out of or relating to deposit, <br /> discharge, or disposal at any other location of substances removed from this <br /> site. <br /> If you have any questions regarding this matter, please contact Cori Condon at <br /> (916) 255-3047. <br /> WILLIAM H. CROOKS <br /> Executive Officer <br /> cc: Mary Meays, San Joaquin County Health, Stockton <br /> Doug Sheeks, Aegis Environmental Inc. , Roseville <br />