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I <br /> WELL COANTRATIONS - <br /> Shell-branded Service Station <br /> 341 East Main Street <br /> Ripon, CA <br /> MTBE MTBE Depth to Depth GW SPH DO <br /> Well ID Datc TPPH TEPH B T E X 8020 8260 TOC Water to SPH Elevation Thickness Reading <br /> ___(2L/LL (ug/L (ug/L (u/L u /L u IL u IL IL u MSL ft. ft. MSL ft. m <br /> Notes: <br /> a=D.O. readings not taken for this event at wells MW-2, MW-3 and EW-2 <br /> b=MTBE by EPA 8020 not taken for this event. <br /> c= No port,unable to sample. <br /> *MTBE by EPA Method 8260 omitted due to lab error. <br /> "Sample was analyzed past EPA recommended holding time. <br /> *"MTBE by 8260 for well MW-1 inadvertently not run for July 9, 1999 event, <br /> Survey of wells perforned on March 25, 1999, by Virgil Chavez Land Surveying of Vallejo, CA. <br /> Wells MW4A,MW4E, MW-5A, MW-513,MW-6A and MW-613 surveyed on January 8,2000 by Virgil Chavez Land Surveying of Vallejo, CA <br /> Revised survey data for wells EW-1 and EW-2 provided by Cambria Environmental Technology, Inc. in January,2001. <br /> Site surveyed May 7,2002, by Virgil Chavez Land Surveying of Vallejo,California. <br /> I <br /> I <br /> Page 11 <br />