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C A M B R I A <br /> A total of approximately 79 gallons of groundwater were removed from the site on <br /> November 24, 2003 Based on the results of the groundwater samples collected by Blaine on <br /> November 3, 2003, this volume corresponds to the removal of approximately 0 006 and <br /> 0 010 pounds of total petroleum hydrocarbon as gasoline (TPHg) and MTBE, respectively <br /> Benzene mass removed is negligible, because benzene concentrations were low or non-detect for <br /> the target wells Volume removal totals and mass removal calculations are presented in Table 2 <br /> Because of the low groundwater yield,no further periodic GWE events are planned <br /> ANTICIPATED FIRST QUARTER 2004 ACTIVITIES <br /> Groundwater Monitoring Blayne will gauge and sample the site wells according to the existing <br /> sampling schedule and tabulate the data Cambria will prepare a groundwater monitoring report <br /> Groundwater Remediation. No further groundwater remediation activities are currently <br /> scheduled <br /> HISTORICAL REMEDIATION SUMMARY <br /> • A soil vapor extraction (5VE) system operated at this site from September 1992 to <br /> November 1996 During this time, the SVE system removed approximately 17,628 pounds of <br /> vapor phase TPHg from the subsurface <br /> CLOSING <br /> If you have any questions regarding the contents of this document, please call Aubrey Cool at <br /> (510)420-3336 <br /> Sincerely, <br /> Cambria Environmental Technology, Inc <br /> Cynthia Vasko <br /> Senior Staff Engineer GAO` <br /> W �Foc`a <br /> Joe W Neely,RG <br /> Senior Project Geologist ' No 6927 <br /> RG 6927 <br /> SOF CALI <br /> 0778 2 <br />