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2191 Navy Drive <br /> Page 2 of 2 <br /> 3. Recoveries for laboratory control samples (LCS) , and <br /> matrix spike samples (MS) if the MS sample is site <br /> specific; <br /> 4 . Quality control limits for surrogates, LCS, MS, and <br /> relative percent differences; <br /> S . Report 1,2-dichloroethane (1,2-DCA) and 1, 2-dibromoethane. <br /> (EDB) at 0 .5 micrograms per liter (µg/L) in groundwater, <br /> if possible, during the quarterly monitoring events; and <br /> • Analyze groundwater and soil samples for total petroleum <br /> hydrocarbons as gasoline (TPH-g) and total petroleum <br /> hydrocarbons as diesel (TPH-d) by EPA SW-846 method 8015B; <br /> benzene, toluene, ethyl benzene and total xylenes (BTEX) ; di- <br /> isopropyl ether (DIPE) , ethyl tertiary-butyl ether (ETBE) , <br /> MTBE, tertiary-amyl methyl ether (TAME) , tertiary butyl <br /> alcohol (TBA) , methanol, ethanol, 1,2-DCA, and EDB by EPA SW- <br /> 846 method 8260B. <br /> COMMENTS AND CONDITIONS: <br /> • Obtain the boring permit from the Environmental Health <br /> Department (EHD) . <br /> • Notify EHD at Least 72 hours prior to the proposed scheduled <br /> work date. <br /> • submit a site-specific health and safety plan to EHD prior to <br /> commencement of the fieldwork. <br /> • Complete the fieldwork by March 18, 2005 . <br /> • nstallation report to EHD within <br /> Submit the monitoring well i <br /> eight weeks of completing the fieldwork. This report must <br /> include boring g , <br /> to s analytical results for <br /> soil and <br /> groundwater samples, and revised cross sections . <br /> REASONS FOR DISAPPROVAL OF THE WORKPLAN (HSS Section <br /> 25296 .10 (c) (3) ) : <br /> • None. <br /> DATED: January 14, 2005 BY: <br /> victoria L. McCartney, REHS <br /> (249) 468-3456 <br />( c: James L. L. Barton, CVRWQCB <br /> William Little, Advanced GeoEnvironmental, Inc. <br /> d <br /> 1 <br />