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Page 2, 242 Sutter Street .... `' <br /> The QMR documents the fourth quarterly groundwater monitoring and sampling event that <br /> has been conducted since the site investigation was taken over by Chevron. All wells, <br /> except MW-3, recently had reportable concentrations of total petroleum hydrocarbons as <br /> diesel (TPHd). Wells MW-1 and MW-6 also had TPH as gasoline (TPHg), benzene, <br /> ethylbenzene and xylenes; toluene was also present in MW-1. <br /> Please proceed with submittal of a work plan to complete the definition of the vertical and <br /> lateral extent of the contamination, in both soil and groundwater, at this site. The work plan <br /> is due for submittal no later than November 29, 2007. <br /> If you have any questions please call Lori Duncan at (209) 468-0337. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> Lori Duncan, Senior REHS Nuel C. Henderson, Jr., PG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> cc: James Barton, PG, CVRWQCB <br /> David Evans, Arcadis/BBL <br />