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TABLE 3 <br /> ' OXYGENATED COMPOUNDS IN GROUNDWATER <br /> Knowles-Roek <br /> Stockton,California <br /> ' Page 31 of 1 i <br /> • (in parts per billion) <br /> � 1 i1 '� �ihlkf {p k 1 ' @ <br /> Tai <br /> W 1 5 B Tan-03 <20 76 <2.0 <2.0 <br /> M3 �- -- <2.0 <br /> __ =� <20 86 <2.0 <br /> Feb-03 <br /> May-03 -- <20 190 < <br /> c20 320 <2.0 <2.0 <2.0 6.8 2.0 <br /> Aug-03 -- "" <2.0 <2.0 <2.0 6.4 <2.0 <br /> Nov-D3 =� <20 440 <2.0 <br /> <20 400 <2.0 <2.0 <2.0 4.8 <br /> Feb-04 <2.0 <2.0 <2.0 6.0 <2.0 <br /> May-44 -- -- <20 300 <br /> Aug-04 < <br /> <40 450 <4.0 <4.0 <4.0 8.8 4•Q <br /> -� -- <br /> Nov-04 <SO 940 <5.0 <S.D <S.D 6.8 <S <br /> .0 <br /> <20 <2.0 <2.0 <2.0 <2.0 <br /> MW 15C Ian-03 -- -- c2.0 <2.0 <br /> Feb-03 -- -- <20 c2.0 <2.0 <2,0 <2.0 <br /> ' __ <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> May-03 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> Aug-03 -- <20 <2.0 <br /> Nov-03 - -- <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> ' <br /> Feb-04 - "" <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> May-04 <20 <2.0 <2.0 <z.0 <2.0 2 <2.0 <br /> < <br /> Aug-04 -- -- <20 <2.0 <2.0 <2.0 <2.0 2.9 2.0 <br /> <2.0 <2.0 <2.0 <2.0 2.3 <2.0 <br /> ' __ - <1000 2,500 <100 <1D4 <100 <100 <100 <br /> MW16A Jan-03 <br /> <400 2,900 <40 <40 <40 <40 <40 <br /> Feb-03 -- <40 <40 <br /> May-03 <br /> -- <400 1,300 <40 <40 <40 <br /> ' __ -- <400 1,400 <40 <40 <40 <40 <40 <br /> Aug-03 <4D <40 <40 <br /> Nov-03 <400 3,300 <40 <40 <br /> <400 1,500 <40 <4D <40 <40 <40 <br /> Feb-d4 -- -- <4D <40 <40 <40 <40 <br /> ' May-04 -- <400 760 <100 <br /> <1,000 58Q <]00 <104 <100 <100 <br /> Aug 04 <1D <10 <10 <1Q <1D ill <br /> Nov-04 -- - <100 964 <br /> ' <br /> <200 170 <20 <20 <20 <20 <20 MW16a Jan-03 -_ <br /> Feb-03 <br /> <400 260 <4d <4D <br /> <40 <40 <40 <40 <40 <br /> May-03 -- - <400 87 <40 <4D <br /> Aug-03 <br /> <400 120 <4D <40 <44 <br /> ' -- <br /> Nov-03 <400 140 <40<4D <40 <4D <40 <br /> Feb-04 - - <400 <40 <40 <40 <40 <40 <40 <br /> May-d4 <br /> <200 <20 <20 <20 <20 <20 <20 <br /> -- '"' <1 OD <!OD Aug-04 -- " <1,000 <100 <100 -100 <100 <10 <br /> Nov-04 <br /> c100 1 14 <10 L <10 <lD <10 <br /> ' <br /> NOTES <br /> Analyzed using modified EPA method 8260. <br /> Bold values indicate value at or above method detection limit. <br /> ' DIPE Di-isopropyl ether <br /> ETBE Ethyl Cert-butyl ether <br /> M-TBE = Methyl tert-butyl ether <br /> TAME tert-amyl methyl ether <br /> TDA = tert-butanol(tertiary butyl alcohol) <br /> 1,2 DCA - 1,2 Dichlaroethane <br /> EDB Ethylenedibromide <br /> < Gess than the indicated detection limit <br /> r Resampled 12/16/97 <br /> �+ = Amended result (Argon Laboratory cottesp,12/7100) <br /> ! <br />