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' Table 1 <br /> Groundwater Elevations and Sample Analytical Results <br /> Former E-Z Serve Location No 100878 <br /> 1012 West Yosemite Avenue,Manteca,California <br /> Well Sampling TOC DTW GWE' PSH TPHg B T E X MTBE <br /> ' No Date (feet) (feet) feet (feet) ( )- ) ( ) ( (nlLl— <br /> MW-8 9115195 3125 1911 12 14 000 <100 <1 <1 <1 <3 <br /> (14 5'-29 5') 12/12/95 3125 1708 14 17 000 <100 <1 <1 <1 <3 <br /> (Cont) 2/22/96 3125 1459 1666 000 <50 <0 5 <0 5 <0 5 <1 5 -- <br /> ' 9/17196 3125 1739 1386 000 <50 <0 5 <0 5 <0 5 <0 5 1 <br /> 12/10/96 3125 1457 1668 000 100 23 84 14 11 06 <br /> 4/15/97 3125 1281 1844 000 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 6/20/97 3125 1374 1751 000 <50 <0 5 <0 5 <0 5 <0 5 < <br /> ' 11/21/97 3125 1498 1627 000 -- -- -- -- -- -- <br /> 12/10/98 3125 1181 1944 000 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 2/5/012 3125 1345 1780 000 <50 <0 5 <0 5 <0 5 <0 5 <0 5 <br /> t 5124101 3125 14 15 1710 000 -- -- -- -- -- <br /> 11/8/01 3125 1636 1489 000 <50 <0 30 <0 30 <0 30 <0 60 <1 0* <br /> 1/31/023 3125 1381 1744 000 <500 <0 5 <0 5 <0 5 <0 5 <1 <br /> 512/02 3125 1420 1705 000 <500 <0 50 <0 50 <0 50 <1 5 <1 0 <br /> 8123102 3125 1816 1309 000 <50 <0 50 <0 50 <0 50 <1 5 <1 0 <br /> 11/22/02 3125 1712 14 13 000 <50 <0 5 <0 5 <0 5 <0 5 <0 5 <br /> 2/28/034 3125 15 10 16 15 000 <50 <0 5 <0 5 <0 5 <1 0 <2 0 <br /> ' Notes Latest analytical results above their respective Practical Quantitation Limits are in boldface font No Known <br /> groundwater monitoring or sampling was conducted between December 10, 1998 and February 5,2001 <br /> TOC =Top of casing referenced to USGS Benchmark HSo208[elevation=38 20 feet above mean sea level) <br /> ' DTW =Depth to water measured from the top of casing <br /> GWE =Groundwater elevation as referenced to benchmark in feet above mean sea level <br /> PSH =Phase Separate Hydrocarbons thickness <br /> TPHg =Total Petroleum Hydrocarbons as gasoline(EPA Method 80 15) <br /> B =Benzene(EPA Method 8020 or 8021) <br /> T =Toluene(EPA Method 8020 or 8021) <br /> E =Ethylbenzene(EPA Method 8020 or 802 1) <br /> X =Total Xylenes(EPA Method 8020 or 802 1) <br /> MTBE =Methyl tert Butyl Ether(EPA Method 8020,8021,or 8260) <br /> ' µg/L =Micrograms per liter(--parts per billion) <br /> (10'-24') =Well screen interval(in feet) <br /> < =Sample reported as not detected in previous tables,reporting limit not known <br /> NP—No-purge sample collected <br /> =1f PSH present,corrected GWE=TOC-Measured BTW+Corrected PSI/ <br /> Thickness(PSH Thickness x gas density[0 751) <br /> 2 =All analysis by EPA Method 8260 <br /> s <br /> =All analysis by EPA Method 8260 on January 31,2002 and thereafter <br /> =TPHg and BTEX analyzed by EPA Methods 8015/8020,MTBE analyzed by EPA Method 8260B <br /> =MTBE analysis by EPA Method 8260B <br /> =Not measured,sampled or analyzed <br /> I <br /> I <br /> i I <br /> I I I <br /> I ' I <br /> I ' I <br /> I I I I I I <br /> , I I <br /> I I I I I <br /> I <br /> Page 5 of S <br /> S 5E IZServe111008781Repert9%EZ878(2903 Q1 GW Table)xls <br /> I II <br />