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. Mondon"s Data TOTAL PETROLEUM AROMATIC VOLATILE ORGANICAND OXYGENATES Well Coded HYDROCARBONS ' 'GASOLINE DIESEL BENZENE TOLUENE ETHYL )nYENE TAME 4443uUW MTBE 1 2 DCA BENZENE Ethanol and EDB Methanol 9/20100 ND ND ND ND ND ND ND ND 11MTSE ND Methanol 470 12/27/00 ND ND ND ND ND ND ND ND 0,71MT8E ND 1 MW-5 2/12/00 ND FN D ND ND ND ND ND ND ND ND 4/28/00 ND ND ND ND ND ND ND ND ND ND 9120/00 ND ND ND ND ND ND ND NO ND ND 12/27/00 ND ND ND ND ND ND ND ND ND ND ' MW-6 2112100 ND ND ND ND ND ND ND ND ND ND 4/28/00 ND ND ND ND ND ND ND ND ND ND 9/20/00 ND ND ND ND ND ND ND ND ND ND 12/27/00 1 ND ND ND ND ND ND ND ND NO ND I) Note N D - Not Detected at Method Detection Limits N A - Not Analyzed Detection Limits EPA Method 8020 varies most are - S 0 ppb EPA Method 8015 - 0 5 mg/kg or 500 ppb TABLE II 1 HISTORICAL GROUNDWATER INFORMATION (Bold designates most recent measurements) Monitoring Well Elevation of PVC Depth to Groundwater Elevation of Gradient Direction Groundwater 1 MW-1 2/12/00 14 16 feet 6 80 feet +736 East MW-1 4128/00 14 16 feet 700 feet +7 16 East/Northeast MW-1 9/20/00 14 16 feet 8 45 feet +5 71 Northeast MW-1 9120/00 14 16 feet 8 45 feet +5 71 Northeast MW-i 12127100 14 16 feet 9 24 feet +492 North MW-2 2/12/00 13 68 feet 6 24 feet +744 East MW-2 4/28/00 13 68 feet 6 58 feet +710 East/Northeast MW-2 9/20/00 13 68 feet 8 00 feet +568 Northeast MW-2 12/27/00 13 68 feet 8 77 feet +491 North MW-3 2112/00 13 55 feet 6 34 feet +721 East MW-3 4128/00 13 55 feet 6 44 feet +7 11 East/Northeast MW-3 9120/00 13 55 feet 7 93 feet +562 Northeast I MW-3 12/27/00 1 13 55 feet 8 63 feet _F1492 J North ft Avalon Environmental Consultants Project#9627-001-5 Joes Truck Plaza 15600 South Harlan Road January 29, 2001 3 Lathrop, California I