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Wm. J. Hunter & Associates 2220 Loma Vista Dr. <br /> Al,egistered Geologists Sacramento, CA 95825 <br /> roleum& Mineral Appraisers (916) 972-7941 <br /> FAX (916) 972-1683 <br /> SI'E QQHIAMINATION WORKPLAN <br /> FOR GROUNDWATER INYESTI ATION <br /> Independent Trucking Co <br /> 11.45 W. Charter Way, Stockton, CA <br /> Prepared for <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> by <br /> Wm. J. Hunter & Associates <br /> November 7, 1994 <br /> PURPOSE OF .KM-. <br /> Work performed in 1992 & 1993 during excavation & removal of a <br /> septic tank & associated leach lines on the property revealed the <br /> presence of waste oil & related petroleum products. That work <br /> included both excavation of the site & soil borings to define the <br /> extent of the contamination. The soil borings revealed that both <br /> soil & groundwater had been impacted. However, the constituents <br /> found in water samples - primarily BTEX & TPH-G - were not con- <br /> sistent with soil sample analysis, which contained high levels of <br /> motor oil, diesel, & halogenated VOC' s, but minor amounts of <br />. BTEX. Because the constituents detected in the groundwater, high <br /> levels of BTEX & TPH-G, were not in agreement with the heavier . <br /> components measured in the soil, the prior consultants & the <br /> owners believe that an offsite source of groundwater contami- <br /> nation exists. <br /> As a result of meetings between the owners, the lessees of the <br /> property & staff members of the CRWQCB, it was agreed that a <br /> workplan would be prepared to investigate the extent of soil & <br /> groundwater contamination which is present on the site. Wm. J. <br /> Hunter & Associates has been retained by the owners of the <br /> property to address those issues. Copies of correspondence from <br /> the CRWQCB are included as EXHIBIT A. <br /> PROPERTY ADDRESS: <br /> 1145 W. Charter Way, Stockton, CA. Present occupant is <br /> Independent Trucking Co. <br /> NAMES & ADDRESSES OF OWNERS <br /> W. W. Miles, P.O. Box 1288, Los Altos, CA 94023; & Patricia <br /> Nolet, c/o Bill Nolet, P.O. Box 520, Mountain View, CA 94042. <br /> f� <br /> 1 <br />