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SAN JOAQUIN COUNTY' �w <br /> ENVIRONMENTAL HEAL - ')VISION! <br /> Wm. J. Hunter & Associates .304 E.WqWr Ave.W"r °` <br /> 1 Registered Geologists P.O. BOX 3$$,Stockton,CA 95201'03W Dr. <br /> Sacramento, CA 2220 Loma Vista to Dr. <br /> Petroleum & Mineral Appraisers (2 )468-3QO 25 <br /> (916) 972-7941 <br /> FAX (916) 972-1683 <br /> Xp9roved <br /> Approved wKh changes` Sea Remarks .' <br /> WORKPLAN FOR PLACINU' Freii+h$f@ftONITORING WELLS <br /> AT 1000 E. ffTH STEBET I <br /> CODE 2 0 A ': <br /> re ared b <br /> Wm. J=unte & s <br /> SSE &I(Z�t t------- <br /> e a 9 9 6 g F <br /> PURPOSE OF WORK; A ro�i I O It <br /> eSe plans extends Only to that' <br /> j5 Sl10Wi1 St1d C19SCFIn but <br /> On July 25, 1996, eight ( e <br /> property in order to def.- � d�ti i tT t ge)f�e�sref�S at §U1%J %t1Kr. <br /> contamination encountered`` � gtzon pperations conducted <br /> on September 19, 1995 . Ti e' sults of that work is covered in <br /> detail in the August 26, 1996 report prepared by WM. J.Hunter & <br /> Associates titled "INTERIM ASSESSMENT REPORT COVERING RESULTS OF <br /> SOIL & GROUNDWATER INVESTIGATION. " Correspondence from the San <br /> Joaquin County EHD, dated March 27, 1996, °;required that a minimum <br /> of 3 groundwater monitoring wells be placed on the property in <br /> addition to the soil probe work recently completed. This <br /> workplan has been prepared in response to-`that letter. <br /> r PROPERTY OWNER: California Welding Supply 'Co. , P.O. Box 567 <br /> Stockton, CA 95203 . <br /> i RESPONSIBLE PARTY: Roger Raymond, (209) 466-8604 <br /> LEGAL DESCRIPTION OF PROPERTY: The property consists of <br /> approximately .75 acres located in the NW/NE of Section 27, <br /> T. 2S . , R. 5E. , M.D.B.& M. , San Joaquin County, California. The <br /> Assessor' s parcel number is 250-160-02 . <br /> PROPERTY LOCATI N: The site is located onseleventh street, <br /> (business 205, ) about 2,000 feet east of the city limits of <br /> Tracy. Refer to prior reports for more details . <br /> REGIONAL GEOGRAPHIC SETTING: Refer to prior reports for details . <br /> ` GEOLOGIC & GEOMORPHIC PROVINCE: Refer to prior reports for <br /> I details <br /> i <br /> DEPTH TO GROUNDWATER: There are very few wells in this area <br /> utilized by the San Joaquin County Flood Control District for <br /> monitoring water levels . Based upon maps ;,published by. that <br /> entity, groundwater is estimated to be between 7 ' & 10 , bgl; <br /> shallow aquifers in the area contain high concentrations of salt <br /> & boron, , and are unsuitable for domestic use. During site <br /> excavation work performed in September 1995, groundwater was <br /> observed entering the excavation at about "111 .below grade . The <br /> 1 ,1. <br /> - �is <br />