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Table 2 ' Groundwater Sample Analytical Results for Fuel Oxygenates and Additives Former E-Z Serve Location No 100878 1012 West Yosemite Avenue,Manteca,California Well Sampling DIPE ETBE MTBE TAME TBA ETH METH 1,2-DCA EDB No Date_ 01g/L) 01g L) (µ ) (µg/L) (µg/L) (FTI-) (n/L)- - Ol$/L) (µFS) MW-1 215/01 < < 1 < 15 - - - - 5/24101 <0 50 <0 50 <0 50 <0 50 14 -- -- -- -- 11/8/01 <2 0 <2 0 <1 0 <2 0 <25 <1,000 <1,000 <2 0 <2 0 ' MW-2 2/1/01 < < < < < 5/24/01 <0 50 <0 50 060 <0 50 6 1 -- -- -- -- 11/8/01 <2 0 <2 0 1 1 <2 0 <25 <1,000 <1,000 <2 0 <2 0 MW-3 2/5101 < < < < < 5/24101 <0 50 <0 50 <0 50 <0 50 6 1 7,300 -- -- -- 11/8/01 <2 0 <2 0 <1 0 <2 0 <25 <1,000 <1,000 <2 0 <2 0 ' MW-4 2/5/01 < < < < < 5/24101 -- -- -- -- 11/8/01 <2 0 <2 0 <1 0 <2 0 <25 <1,000 <1,000 <2 0 <2 0 ' MW-5 215/01 < < < < < -- -- -- -- 5/24/01 < < < < < -- -- -- -- 11/8/01 <4 0 <4 0 <2 0 <4 0 <50 <1,000 <1,000 <4 0 <4 0 MW-6 215101 < < < < < -- -- -- -- 5/24101 <0 50 <0 50 20 <0 50 65 -- -- -- -- 1118/01 <2 0 <2 0 2 1 <2 0 <25 <1,000 <1,000 <2 0 <2 0 MW-7 215/01 < < < < < -- -- -- -- IS5/24/01 -- -- -_ -- -- -- -- -- — 1 I18/01 <2 0 <2 0 <1 0 <2 0 <25 <1,000 <1,000 <2 0 <2 0 MW-8 2/5101 < < < < < _ -- -- -- 5/24/01 -- -- -- -- -- — -- -- -- 11/8/01 <2 0 <2 0 <1 0 <2 0 <25 <1,000 <1,000 <2 0 <2 0 ' Notes DIPE =Di-isopropyl Ether(EPA Method 826013) ETBE =Ethyl tert-Butyl Ether(EPA Method 8260B) MTBE =Methyl-tert-Butyl Ether(EPA Method 8260,before July 2001 by EPA Method 802 1) ' TAME =tert-Amyl Methyl Ether(EPA Method 826013) TBA =tert-Butanol(EPA Method 826013) ETH,=Ethanol(EPA Method 8015b by Direct Injection[GC/FID]) ' METH_Methanol (EPA Method 8015b by Direct Injection[GC/FID]) 1,2-DCA= 1,2-Dmchloroethane(EPA Method 82608) EDB — 1,2-Dibromoethane(EPA Method 8260B) gg/L =micrograms per liter(—ppb) ' --=Not sampled or analyzed <=Sample reported as not detected in previous tables,reporting lmut not known ` I 1 I I I II Page 3 of 1 I i y I ,E