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Wm. J. Hunter & Associates 2220 Loma Vista Dr <br /> Registered Geologists Sacramento, CA 95825 <br /> IVetroleum& Mineral Appraisers (916) 972-7941 <br /> FAX (916) 972-1683 <br /> INTERIM REPORT AND RESULTS OF <br /> GROUNDWATER INVESTIGATION <br /> 2315 NO. EL DORADO ST. , STOCKTON CA <br /> SITE CODE 2080 <br /> Prepared by <br /> Wm. J Hunter & Associates <br /> August, 1995 <br /> PURPOSE OF WORK <br /> In September, 1994, one (1) soil boring was placed in the <br /> approximate center of a previously removed waste oil tank on the <br /> property to evaluate minor soil contamination encountered during <br /> prior investigative work conducted in 1993 . The soil boring was <br /> programmed to go to 40 ' to determine the vertical extent of heavy <br /> hydrocarbons detected by that earlier work. Soil contamination <br /> was encountered at 26 ' bgl , and was still present at 401 , the <br /> original programmed depth Since this was below recorded <br /> groundwater depths during the past 10 years, it was decided to <br /> continue drilling and convert the soil boring to a monitoring <br /> well The well was completed on September 30 , water samples <br /> taken on October 3, 1994 revealed significant levels of BTEX & <br /> TPH G. The results of the laboratory analysis of those soil & <br /> water samples are summarized on TABLES VIII & IX. Details of <br /> that work is covered in the WJH report titled "Interim Report & <br /> Results of Groundwater Investigation, " dated October 31, 1994 . <br /> The County EHD wrote to Mr Valentine on February 27, 1995 , <br /> requiring that two (2) additional groundwater monitoring wells be <br /> placed on the property in order to obtain gradient data & <br /> evaluate the extent of the contamination encountered during the <br /> above work. A copy of that letter is included as EXHIBIT A The <br /> two wells were placed on June 1, 1995 ; the results of that work <br /> are detailed in this report <br /> PROPERTY LOCATION: <br /> 2315 No. El Dorado Avenue, Stockton, CA <br /> PROPERTY OWNER. <br /> Stephen Valentine, 6232 Hemet Ave. , Stockton, CA 95207 <br /> CONTACT PERSON <br /> Steve Valentine, (209) 477-3471 <br /> 1 <br /> 1 <br />