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l <br /> Cecchint, Cecchuu, and Govannoni, Fueling Island <br /> 5.0 Loan& usnoBns and Reeom menndatt ons <br /> I <br /> Based on the review of the data collected during this and previous investigations conducted at the <br /> site, ESE has the following conclusions and recommendations <br /> 5.1 ConcRusiollns <br /> E o The average depth to ground water was approximately 65 5 feet bgs on December 20, <br /> 1995 The ground water level noted this quarter has risen approximately 3 4 feet since last <br /> quarter No free product was observed in any of the wells, <br /> l a Ground water flow beneath the site is toward the north to northeast over the site at a <br /> gradient of approximately 0 003 foot per foot (15 5 feet per mile), <br /> 0 UST-1 and UST-2 were reported to contain only TPH-D at a concentration of 460 µg/1 and <br /> 540 14g11, respectively TPH-D was reported as non-detect in ground water samples <br /> collected from monitoring wells UST-3 and UST-4, <br /> v O TPH-G and BTEX were reported as non-detect in ground water samples collected from <br /> v monitoring wells UST-1 through UST-4 <br /> 5.2 ReeommeIIndafloIIns <br /> ESE recommends continued quarterly monitoring of all monitoring wells at the site The <br /> recommended monitoring program is as follows <br /> o Measure water levels in all monitoring wells, including the small and large water supply <br /> wells, <br /> o g <br /> Sample round water with analysis for TPH as gasoline and diesel and BTEX in wells <br /> P <br /> i UST-1 through UST-4, <br /> f 0 Report all site activities related to the underground tank area <br /> L <br /> Evaluate site conditions with respect to new corrective action criteria or closure screening <br /> r methods used by the Local Oversight Agency under LUFT Chapter 16 Article 11 or SB <br /> 1764 <br /> t <br /> f 169254001gtrly rpt14qu95 rpt 7 Environmental Science&Engineering,Inc <br />