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TABLE 3 <br /> OXYGENATED COMPOUNDS IN GROUNDWATER <br /> Knowles- Rock <br /> ' Stockton, California <br /> Page I 1 of 1 I <br /> (in parts per billion) <br /> w <br /> w dd <br /> �m .> ..4, «.� ♦Y?..� 'P.�., ::AY. ^T..«., .... <br /> MW15B Jan-03 -- <20 76 <2.0 <2.0 <2.0 5.5 <2.0 <br /> Feb-03 -- -- <20 86 <2.0 <2.0 <2.0 8.4 <2.0 <br /> May-03 -- -- <20 190 <2.0 <2.0 <2.0 9.0 <2.0 <br /> ' Aug-03 -- -- <20 320 <2.0 <2.0 <2.0 6.8 <2.0 <br /> Nov-03 -- <20 440 1 <2.0 <2.0 <2.0 6.4 <2.0 <br /> Feb-04 -- <20 400 <2.0 <2.0 <2.0 4.8 <2.0 <br /> ' May-04 -- -- <20 300 <2.0 <2.0 <2.0 6.0 <2.0 <br /> Aug-04 <40 450 <4.0 <4.0 <4.0 8,8 <4.0 <br /> MW15C Jan-03 -- <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> Feb-03 <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> May-03 <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> Aug-03 -- ^- <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> ' Nov-0-3 ^- <20 <2.0 1 <2.0 <2.0 1 <2.0 <2.0 <2.0 <br /> Feb-04 <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <br /> May-04 -- -- <20 <2.0 <2.0 <2.0 <2.0 2.4 <2.0 <br /> Au -04 '= <20 <2.0 <2.0 <2.0 <2.0 2.9 <2.0 <br /> MW16A Jan-03 <1000 2,500 <100 <100 <100 <100 <100 <br /> Feb-03 -- -- <400 2,900 <40 <40 <40 <40 <40 <br /> ' May-03 <400 1,300 <40 <40 <40 <40 <40 <br /> Aug-03 <400 1,400 <40 <40 <40 <40 <40 <br /> Nov-03 -- -- <400 3,300 <40 <40 <40 <40 <40 <br /> ' Feb-04 -- -- <400 1,500 <40 <40 <40 <40 <40 <br /> May-04 <400 760 <40 <40 <40 <40 <40 <br /> Aug-04 -- <1,000 580 <100 <100 <100 <100 <100 <br /> ' MW16B Jan-03 « =� <200 170 <20 <20 <20 <20 <20 <br /> Feb-03 <400 260 <40 <40 <40 <40 <40- <br /> May- -- -- <400 87 <40 <40 <40 <40 <40 <br /> ' Aug-03 == _= <400 120 <40 <40 <40 <40 <40 <br /> Nov-03 <400 140 <40 <40 <40 <40 <40 <br /> Feb-04 -- -- <400 <40 <40 <40 <40 <40 <40 <br /> ' May-04 -- <200 <20 <20 <20 <20 <20 <20 <br /> Au -04 <1,000 <100 <100 <100 <100 <100 <100 <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 /> ETRE Ethyl Cert-butyl ether a <br /> MTBE Methyl Cert-butyl ether i <br /> TAME = tert-amyl methyl ether <br /> I ' TBA tert-butanol(tertiary butyl alcohol) <br /> 1,2 DCA 1,2 Dichloroethane <br /> EDB' - Ethylenedibromide< Less than the indicated detection limit y <br /> * Resampled 12/16/97 <br /> ** = Amended result (Argon Laboratory corresp, 1217/00) <br /> j <br />