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Wm. J. Hunter & Associates , 2220 Loma Vista Dr <br /> Registered Geologists P -I �-f�.i�I-r)I Sacramento, CA 95825 <br /> • Petroleum & Mineral Appraisers Y � I�`'� <br /> (916) 972-7941 <br /> FAX (9 16) 972-1683 <br /> 10 5 3 <br /> 1 <br /> WORKPLAN ADDENDUM TO WORKPLAN DATED NOVEMBER 13 , 1995 , <br /> ADDITIONAL SOIL/GROUNDWATER INVESTIGATATION <br /> 2315 NO. ELDORADO STREET, STOCKTON <br /> SITE CODE 2080 <br /> Prepared by <br /> Wm J Hunter & Associates <br /> February 14, 1996 <br /> PURPOSE OF WORK <br /> Results of laboratory analyses of groundwater samples obtained <br /> from three (3) monitoring wells placed on the property in 1994 & <br /> 1995 indicate the possibility of an additional source of contami- <br /> nation caused by leakage from the dispensing pumps or product <br /> lines <br /> Prior investigative work had indicated that the removed gasoline <br /> UST' s may have caused some of the soil and water contamination, <br /> although soil samples taken beneath the UST' s did not reveal any <br /> gasoline compounds Soil contamination was encountered at a <br /> shallower depth in MW-3 than in any of the four soil borings or <br /> the two monitoring wells, it is the closest to the pump island <br /> Groundwater contamination is present in all three monitoring <br /> wells, but is significantly higher in MW-3 , although it is not in <br /> a downgradient position. These two factors, <br /> ow soil <br /> contamination & high levels of BTEX in the water, ) lsuggest that <br /> the pump island may be the major source <br /> This workplan is for the purpose of investigating whether or not <br /> the dispensing pumps and/or product lines have contributed to the <br /> gasoline compounds found beneath the site, and attempt to deter- <br /> mine the limits of soil & groundwater contamination at the north- <br /> west~, southwest, and southeast corners of the <br /> PROPERTY LOCATION: p S-ROU&INCOUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> 304 E. Floor <br /> 2315 No. E1 Dorado Avenue, Stockton, CA PO Box 3N, Sin,CAe. S 95201-03M <br /> PROPERTY OWNER & CONTACT PERSON Phone. (209)468-3420 <br /> Stephen Valentine, 6232 Hemet AveSt Approved <br /> 477-3471 ed !8 9s' marks ; <br /> El Disapproved See Rartla;�S <br /> LEGAL DESCRIPTIQN• RemarkslZW�_� ll.fxl _ <br /> The property consists of approximately l <br /> the southwest corner of No El Dorado <br /> • The Assessor' s parcel number is 125-10paW <br /> Icy <br /> Approval of these plans extends only to that <br /> wh+ch is shown and described hereon fait <br /> does not authorize or approve any om,ss.ion <br /> or deviation of requirements of State taws or <br /> Local Ordinances. <br />