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Table 1 - Water Sample Analytical Results <br /> Tosco 76 Branded Facility No. 11195 <br /> ti <br /> 16500 South Interstate 5 <br /> Lathrop,California <br /> Sample Date TPHg Benzene Toluene Ethyl- Xylenes MtBE MtBE Ethanol TBA DIPE EtBE TAME Lead <br /> Location Collected Benzene by 8020 by 8260 <br /> and ID (ppb) (ppb) (ppb) (ppb) (ppb) (Ppb) (ppb) (ppb) <br /> (ppb) (ppb) (ppb) (ppb) (ppb) <br /> Former Gasoline UST Complex Excavation <br /> CW 12/30/98 60,000 1,500 14,000 1,700 12,000 .83,000 130,000 ND ND ND ND 870. ND <br /> SW 12/30/98 8,400 310 1,500 160 1,600 83,000 100,000 ND ND ND ND 460 ND- <br /> Water Disposal <br /> W-STI 2/1/99 600' 8.0 5.7 6.3 37 12,000 -- -- -- -" "- <br /> CC-13 4/9/99 ND 5.3 ND ND ND 6,300 -- -- -- -- -- "- -- <br /> ANALYTICAL LABORATORY: ANALYTICAL METHODS: <br /> Sequoia Analytical(FLAP#1271 & 1210) TPHg = Total Petroleum Hydrocarbons as gasoline according to EPA Method 8015 Modified <br /> MtBE=Methyl tertiary butyl ether according to EPA Methods 8020 and/or 8240 and/or 8260 <br /> TBA=Tertiary butyl alcohol according to EPA Method 8260 <br /> DIPE=Diisopropyl ether according to EPA Method 8260 <br /> EXPLANATION: EtBE=Ethyl t-butyl ether according to EPA Method 8260 <br /> TAME=Tert-amyl methyl ether according to EPA Method 8260 <br /> ppb=parts per billion <br /> ND=Not Detected <br /> --=analysis not requested <br /> '=Laboratory report indicated gasoline and unidentified hydrocarbons C6-C12 <br /> 2= 10 ppb detection limit. <br /> 3=Sample also reported as 7.4 for pH. <br /> 140193.07 1 6/17/99 <br />