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4 � <br /> rL <br /> Mr Ronald Rowe <br /> • June 24, 1999 <br /> Page 2 <br /> • The submittal of the samples to a State-certified laboratory for analysis, and <br /> • The preparation and submittal of quarterly monitoring reports to the San Joaquin <br /> County Public Health Services Environmental Health Department's (PHS/EHD) <br /> Water samples will be analyzed for benzene,toluene, ethylbenzene, total xylenes (BTEC <br /> total petroleum hydrocarbons as gasoline (TPHg), and MTBE and other oxygenates by EPA <br /> Method 8260B This sampling is as required by the PHS/EHD <br /> Thepurge water from these sampling events will be disposed of into an on-site evaporation <br /> pond <br /> Standard operating procedures for sampling groundwater monitoring wells and sample <br /> handling are included as Exhibit A <br /> Project Schedule The proposed sampling will occur in the months of January, April,July, <br /> and October The first sampling event was conducted on April 27, 1999 <br /> A quarterly monitorinP report in letter form will be completed within six weeks after each <br /> sampling event is complete The report will include a description of field methods, <br /> estimate of the groundwater flow direction and radient, results of laboratory analysis of <br /> . groundwater samples, and conclusions The finl report will be provided to the <br /> PHS/EHD <br /> If you have questions or comments, please call me at (916) 4440123 <br /> Sincerely, <br /> BROWN AND CALDWELL <br /> Tina M Bauer <br /> Project Manager <br /> TMB jw <br /> cc Mr Terry Tarditi, T&T Trucking <br /> • Use or disclosure of data continued on this sheet is subject to the restriction specified at the beginning of this document <br /> BCSAC011P1160001162711WRKPLN2 doc <br />