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s <br /> �x <br /> 4 <br /> !uT <br /> 4' <br /> k <br /> � 2.4 Table sum;na;-iain <br /> g preliminary soil sampling data, <br /> Concentration (ppm) <br />` Sample B T <br /> �Q Tank-1~(oil) ---- - ---X--- --TPH/G_--- .PCB_____-_pb-- <br /> TanK 2 (trans- <1,0 <1 <br /> ,�. missionTank 3 <br /> ' i Tank 4 (gas} ND ND .058 <4.0 <1 - <br /> (gas) .27 12.9 .120 4090 _ 8.0 <br /> Tank 5 (gas) 183 45.5 693 28200 7.4 <br /> 10.2 <br /> Note: <br /> B = Benzene <br /> T = Toluene <br /> X - Xylene <br /> t, T = Total <br /> PCB <br /> Petroleum hydrocarbons as <br /> ` = polychlorobiphenyls gasoline <br /> r- Pb <br /> Lead <br /> - Not tested <br /> ND = Non-detected <br /> a <br /> See Appendix I for reports. <br /> 2.5 Estimates of liquid quantity and composition leaked. <br /> ,sa estimate of liquid <br /> an be inade <br /> information. The constituenist detected in thew soil existing <br /> r�.. Y <br /> �i YpIcall derived from gasoline.are <br /> are t <br /> 2.6 Topography,P Y, geology, surface water, depth P to groundwater: <br /> f The site is situated on level terrain <br /> F � Ouaternary-Resent alluvial sedimenters.rai Depth Comprised <br /> rised of <br /> i aPProxir.lately 20-25 feet below grade based on the water <br /> Sis <br /> an <br /> I -i Joaquin Flood Control end grater Conservation District data. <br /> J Regional :Shallow groundwater (unconfined) <br /> Parallel to the nearby Stocktoflows to the west <br /> n Deep Water Channel. <br /> 2.7 <br /> Proximity of private, municipal and irrigation wells: <br /> D' = .on wells within cne half mile of <br /> a j <br /> provided by the. DE artment of dater Resources he site ; <br /> p10tt6d on Figure 4.p (DWR) are <br /> 2.8 Proposed sampling locations and methodology: <br /> To assess the contribution of the former underground tanks <br /> � to soil and possible <br /> WaterWork proposes o odrill andosamm le tone at the site, <br /> # contamination <br /> p <br /> 3 u monitoring well in both-gorr,ter--tank--p:its__anc2--two soil <br /> g borings in-tank- groundwater - - - <br /> -- - -- Pit-A (Figures 2 and 3). <br /> - --- <br /> j - <br /> 4 Underground utilities will be located. b <br /> Alert- prior to drilling. ' y UndFrground Service <br />