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• GEORGE DEUKMEJIAN,Governor <br /> STATE OF CALIFORNIA <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> 3201 S STREET <br /> SACRAMENTO,CALIFORNIA 95816-7090 <br /> PHONE: (916)445-0270 <br /> 7 April 1986 <br /> Mr. Jim Hall <br /> Caltrans <br /> Post Office Box 2048 <br /> Stockton, CA 95201 <br /> REUSE OF SOIL FROM RENOWN ENTERPRISES SITE, TRACY, ON THE STOCKTON CROSS-TOWN <br /> FREEWAY, SAN JOAQUIN COUNTY <br /> Since our letter of 12 March 1986, we have gathered the following additional <br /> information on the subject sites: <br /> 1. The soil which Caltrans will use to build the freeway embankments is <br /> specified to have very little <br /> clay <br /> soi 1 s content. <br /> The initial desirable popoal was that <br /> situations to use very permeable <br /> clay-type soils would cover the contaminated soils. <br /> he <br /> 2. Caltrans will tractor. Thistrolmeanosvth t er etheeof sidetslopestonitheematerial <br /> bottomten <br /> by their con <br /> feet of contaminated fill on the freeway embankment will probably be <br /> exposed to rain and irrigation water. <br /> 3. Contrary to prior information provided to us, there will be a 44-foot strip <br /> of bare soil between the paved riding surfaces on the freeway embankment. <br /> This will provide a direct pathway for runoff and rain water to percolate <br /> downward toward the waste material . <br /> Based on the above, along with the lack of a detailed proposal, and lack of <br /> quality control <br /> sampling <br /> haptprogram <br /> forfor <br /> thethe <br /> subjectmaterial <br /> materiabeatethisdtime,cannot <br /> grant an exemption to Subchapter <br /> If you have any estions, please call Dan Ward at (916) 324-8891. <br /> 10 � <br /> osz <br /> ANTONIA K.J. VORSTER APR IYdb <br /> Senior Engineer <br /> EIVVIRUMENTAL HEALTH <br /> DTW:jec FERMIT/SERVICES <br /> cc: Mr. Dale Steel , California Department of Transportation, Stockton <br /> Mr. Tony Landis, Toxic Substances Control Div. , Dept. of Health Services <br /> / San Joaquin Local Health District, Stockton Rancho Cordova <br /> Mr. Jim Schuck, American Environmental Management Corp. , <br />