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Groundwater Monitoring Data and Analytical Results <br /> Chevron Service Station##9-1452 <br /> 334 East Main Street <br /> Ripon,California <br /> EXPLANATIONS: <br /> Groundwater monitoring data and laboratory analytical results prior to November 29,2001,were compiled from reports prepared by Blaine Tech Services,Inc. <br /> TOC—Top of Casing TPN-G=Total Petroleum Hydrocarbons as Gasoline (ppb)—Parts per billion <br /> (ft.)=Peet B=Benzene --=Not Measured/Not Analyzed <br /> DTW=Depth to Water T=Toluene ND=Not Detected <br /> (ms])=Mean Sea Level E=Ethylbenzene QA=Quality Assurance/Trip Blank <br /> GWE=Groundwater Elevation X=Xylenes <br /> TPH-D=Total Petroleum Hydrocarbons as Diesel MTBE=Methyl tertiary butyl ether <br /> * TOC elevations are reference to ms]. TOC elevations were resurveyed by Morrow Surveying on April 14,2003. Elevations are based on USGS benchmark H-1413, <br /> (Benchmark Elevation=71.71 feet,NAVD 88). <br /> ' BTEX and MTBE by EPA Method 8260. <br /> 2 Well development performed. <br /> 9-1452.x10611 '92 8 <br /> As of :04 <br />