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1 <br /> 1fr"rj'" 1.0 INTRODUCTION/PREVIOUS WORK <br /> This report is being submitted in response to a request by <br /> the Stockton Department of Public Works to conduct a site <br /> Investigation on the grounds of the Smith's Canal Pumping ; <br /> Station, Fontana Avenue in Stockton. <br /> Ile understand an estimated .1100 .gallons. of .diesel fuel: was <br /> leaked .from .this 4000 gallon fibezg;lass.:tank.as a result of <br /> an inadvertent puncture. Investigations conducted in May i <br /> Ec 1988 by. Ensco Environmental Services Inc. recorded 130 ppm <br /> concentration of total petroleum hydrocarbons as diesel in a a <br /> '? soil sample collected at a depth of 17 feet below grade. ' <br /> !: Due to the proximity of Smith's Canal, the grater table is <br /> expected to be relatively shallow, less than 20 feet below <br /> grade. <br /> 2.0 DATA REQUIRED BY THE REGIONAL WATER QUALITY CONTROL BOARD <br /> }` 2.1 Name and address of contact person: <br /> i <br /> Contact PergQn: Jim Escobar <br /> City of Stockton <br /> Department of Public Works <br /> City Hall <br /> Stockton, CA 95320 <br /> (209) 944-8282 ' <br /> s <br /> rt� 2.2 Map showing site location, relative to nearby landmarks: <br /> The site location is shown on Figure 1. mle <br /> F4 2.3 Sketch of site. <br /> A site sketch Is presented on Figure 2. <br /> 2.4 Layout of all tanks and piping systems properly labeled for <br /> content: <br /> + Existing tank and pump locations are shown on Figure 2. . <br /> 2.5 Tables summarizing preliminary soil data: <br /> Concentration (ppb) <br /> jrt sample S T X TPH(g) TPH(d) <br /> IAN ---------------------------------------------------------- <br /> Soil---------------------------------------------------------Soil Boring: <br /> i. <br /> -._ _..... .._..... _ - -..� .. ....... :B <br /> . <br /> t B-1 at 17.5 ft......_NA....... NA. ... ... . . ._NA NA - . _. . .. .. <br /> NA = not analyzed f <br /> y <br /> 7 <br /> r <br />