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1 <br /> City of Stockton A68104 02B <br /> August 28, 1996 Page 3 <br /> +' r. ' r l 4 } • ` r ryry r l ` ` , l +, r 4 Y + Y`Nr nn <br /> iL*EH M1} <br /> uvommy"of' off Sample A aMbft+csl R�.r <br /> kmpingv Date: ul X94, <br /> Results to Afiffigrams per Kilogram(m&ft <br /> Sample Sa-pte <br />' ldendGimtton Depth,FBSG Benzene Toluene Ethylbenzene Xylenes TPH-G <br /> W13 13 ND ND ND ND ND <br /> E12 12 ND ND ND ND ND <br /> N12 12 ND 0 021 0 016 011 2.3 <br />' S10S 10.5 0049 13 031 20 16 <br /> B195 19.5 ND<004 10 10 8.5 39 <br /> DL 0 005 0 005 0 005 0005-T 10 <br />' FBSG = feet below site grade(inferred) <br /> Tl'H-G = total petroleum hydrocarbons-gasoline range constituents <br />' ND = not detected at or above detection limit <br /> DL = detection limits <br /> Source of Data McCampbell Analytical,Inc, 1994 <br /> The approximate extent of the excavation and the location of the boundary soil samples are <br /> shown on Drawing 3 <br />' In a letter dated July 27, 1994 the San Joaquin County Public Health Services (SJCPHS) <br /> required a groundwater and soil investigation On August 30, 1994, the City of Stockton <br /> authorized Twining to perform a groundwater and soil investigation A work plan (Twining, <br /> 1994) was prepared by Twining and approved by the SJCPHS on October 19, 1994. Due <br /> to the relatively wet winter and spring of 1994-1995, the lawn area around the former UST <br /> location was very susceptible to damage by the drilling equipment Therefore field work on <br /> this project was postponed until June, 1995 <br />' On June 22, 1995, Twining drilled four soil borings (B-1 through B-3, and MW-1) at the <br /> locations shown on Drawing 4 to assess the presence of PPCs in subsurface soil beneath the <br /> former locations of a fuel dispenser and UST The analytical results of soil samples <br />' collected from the soil borings are summarized in Table 2. <br /> 1 I <br /> I <br /> 1 <br /> i <br /> 1 <br />