Laserfiche WebLink
WELL CONCENTRATIONS <br /> Shell-branded Service Station <br /> 341 East Main Street <br /> Ripon, CA <br /> Wic #204-6522-0307 <br /> Depth <br /> MTBE MTBE to Depth GW SPH DO <br /> Well ID Date TPPH TEPH B T E X 8020 8260 TOC Water too SPH Elevation Thickness Reading <br /> u IL u /L u IL (ug/L _(u 2/L (2 21) u /L u I MSL ft- J ft. MSL ft. m <br /> Abbreviations: <br /> 1 TPPH=Total petroleum hydrocarbons as gasoline by modified EPA Method 8015 <br /> TEPH=Total petroleum hydrocarbons as diesel by modified EPA Method 8015 <br /> STEX=benzene,toluene,ethylbenzene,xylenes by EPA Method 8020 <br /> MTBE=methyl-tertiary-butyl ether <br /> 1 TOC=Top of Casing Elevation <br /> SPH=Separate-Phase Hydrocarbons <br /> GW=Groundwater <br /> DO=Dissolved Oxygen <br /> ug/L=parts per billion <br /> ppm=parts per million <br /> msl=Mean sea level <br /> ft=Feet <br /> <n=Below detection limit <br /> NA=Not applicable <br /> I <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 performed on March 25, 1999 by Virgil Chavez Land Surveying of Vallejo,CA. <br /> Wells MW-4A, MW-46, MW-5A, MW-5B, MW-6A and MW-6B surveyed on January 8,2000 by Virgil Chavez Land Surveying of Vallejo, CA <br /> ;T <br /> P e8 <br /> I <br />