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PUBLIC HEALTH SERVICES <br /> o. ..� <br /> SAN JOAQUIN COUNTY p a <br /> JOGI KHANNA M.D..,M.P.H. <br /> Healch Officer <br /> P.O. Box 2009 . (1601 East Hazelton Avenue) . Stockton, California 95201 <br /> (209) 468-3400 <br /> July 3, 1989 <br /> Mr. Hal Miller <br /> Southland Corporation, <br /> 5820 Stoneridge Mall Road, Suite '31O <br /> Pleasanton, CA 94566 <br /> RE: 7-11 Store 9110 Thornton Road, Stockton <br /> In summation of our meeting of June 13, 1989 at the Central <br /> Valley Regional Water Quality Control Board office, the following <br /> activities shall take place immediately: <br /> i° <br /> L. Monthly/Quarterly Reports on ,the existing soil venting <br /> system shall be submitted to �the San Joaquin County <br /> Environmental Health and Regional Water Quality Control <br /> Board. Copies of all prior reports shall also be submitted. <br /> 2. A proposal to expand the soil venting system with existing i <br /> site monitoring wells shall be submitted to San Joaquin <br /> County Environmental Health and Regional Water. Quality <br /> Control Board for review and .'comment. <br /> i <br /> 3. The additional monitoring well construction plan shall be <br /> amended to include continuous? core drilling on at least one <br /> of each of the clustered well',s proposed. A detailed <br /> description of the sampling procedure to be used during <br /> continuous core logging should be included in the amendment. <br /> i <br /> i <br /> 4 Within two weeks of the above drilling activity, Groundwater <br /> Technology shall prepare cross—sectional diagrams to <br /> illustrate the stratigraphy of the site. These cross— i <br /> sectional diagrams should support the theory of incongruous <br /> lithology. <br /> A Division of San Joaquin County Health Care Services <br />