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C A M B R I A <br />Mr. Steven Shih <br />June 20, 2005 <br />The sample collected between the western dispenser and the USTs (P-6-10) did not contain <br />detectable TPHg, BTEX, or MTBE, indicating that over -excavation was effective in removing the <br />MTBE in that area. <br />CONCLUSIONS <br />All of Shell's fuel storage and dispensing equipment has been removed from the site. The site is <br />an active environmental case with SJCEHD and currently has four groundwater monitoring wells <br />on site. SJCEHD has approved the installation of additional groundwater monitoring wells on <br />site. The most significant remaining area of petroleum hydrocarbon impact is in the vicinity of <br />the eastern dispenser area. Cambria recommends advancing soil borings to assess the extent of <br />petroleum hydrocarbons and fuel oxygenates in the vicinity of the dispensers. Cambria will <br />submit a detailed work plan under separate cover. <br />R <br />