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i <br /> OBLE 2 <br /> HISTORICAL ANALYTICAL RESULTS -GROUNDWATER GRAB SAMPLES <br /> Nelson Ready-Mix Site <br /> 1040 Moffat Boulevard, Ripon, California <br /> SAMPLE DATE SAMPLE TPH- TPH- TPH- TPH- ETHYL- <br /> LOCATION SAMPLED SAMPLE ID DEPTH(FT) DIESEL KEROSENE MOTOR OIL GASOLINE BENZENE TOLUENE BENZENE XYLENES MTBE VOCs <br /> SBA 519197 SB-1-GW 18 220,000 NA NA NA 36 ND<0 5 18 60 ND<5 NA <br /> SB-2 519197 SB-2-GW 18 590,000 NA NA NA 29 ND<0 5 ND<0 5 ND<0 5 ND<5 NA <br /> SB-3 519197 SB-3-GW 18 530 NA NA ND<50 ND<O 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND <br /> SB-4 519197 SS-4-GW 18 NA NA NA NA I NA NA FNA NA NA ND <br /> S13-5 5128/98 SB-5-GW 125 7,600 NA NA 190 09 ND<0 5 ND<0 5 ND<2 ND<5 NA <br /> SB-6 5128198 SB-6-GW 13 170 NA NA ND<50 ND<0 5 ND<0 5 ND<0 5 ND<2 ND<5 NA <br /> SB-7 5128198 SB-7-GW 14 13,000 NA NA 2,800 22 ND<0 5 16 ND<2 ND<5 NA <br /> NOTES Groundwater grab sample results are presented in micrograms per liter(ug/L) <br /> Sample depths are in feet(FT)below ground surface <br /> Total Petroleum Hydrocarbons(TPH)-Diesel,TPH-Kerosene and TPH-Motor Oil analyzed by Modified EPA Method 8015 <br /> TPH-Gasoline, Benzene,Toluene, Ethylbenzene,Xylenes,Methyl tertiary butyl ether(MTBE)analyzed by Modified EPA Method 8020 <br /> Volatile Organic Compounds(VOCs)analyzed by EPA Method 8240 <br /> ND<50=Not Detected at reporting limit of 50 micrograms per liter <br /> NA=Not Analyzed <br />