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TABLE 3 <br /> OXYGENATED COMPOUNDS IN GROUNDWATER <br /> Knowles-Rock <br /> Stockton,Califoriva <br /> . Page 4 of I I <br /> (in parts per billion) <br /> �"�' {`F� � <br /> aWell Date Methanol Ethanol- TBA_ MTBE RPE' ET76E TAME1 2 UCA< EDT3"° <br /> MW2 Nov-97160 160 <20 --<20 <20 <20 -- _ <br /> .Feb-98 <100 <5 0 <5 0 <5 0 <5 0 -- -- <br /> Nov-99 -- -- <50 <5 0 <5 0 <5 0 <5 0 - <br /> reb-00 -- -- <50 <5 0 <5 0 <5 0 <5 0 -- <br /> May-00 <2 500 <1,250 <250 <25 <25 <25 <25 260 <25 <br /> Aug-00 <500 <250 <50 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <br /> Nov-00 <500 <250 <50 <5 0 <5 0 <5 0 <5 0 15 0 <br /> Mar-01 <1 000 <500 <40 <4 0 <4 0 <4 0 <4 0 56 14 <br /> May-01 -- -- <20 <20 <2 0 <2 0 <2 0 41 12 <br /> Plug-01 -- -- <20 1 <2 0 <2 0 <2 0 <2 0 65 <2 0 <br /> Dec-01 rs <br /> __ __ Not Sample <br /> Feb-02 <20 <2 0 <2 0 <2 U <2 0 35 <2 0 <br /> May-02 - Not Sampled <br /> # Aug-02 <20 <20 1 <20 T <20 <2 0 29 <2 0 <br /> Nov-02 __ -- Not Sampled i <br /> Feb-03 66 <2 0 1 <22 <2 0 <2 0 IS <2 0 I <br /> Mar-03I{ -- -- Not Samplea Aug-03 <20 <2 0 f <2 0 <2 0 <20 26 <2 0 <br /> Nov-03 -- __ Not Sampled <br /> Feo-04 <20 <2 U 1 <2 0 4 0 4 0 17 <2 0 <br /> May-04 — Not Samoled <br /> Aug-04 -- 400 <2a <20 1 <20 <20 33 <20 <br /> \Tov-04 Not Sampled <br /> MW3 Nov-97 _= <35 <5 0 <10 <1 0 <' <br /> Feb-98 1 <100 <5 0 <50 <5 0 <5 0 <br /> May-98 == YY 21 19 11 <10 <10 -- - <br /> Aug-98 -- -_ 26 27 �() <br /> <10 <1Nov-981 <50 220 <1a <l0 { <br /> Feb-99 <330 1,600 <65 <65 <65 -- -- <br /> May-99 - <250 1,400 <25 0 <25 0 <25 0 -- I — <br /> Aug-99 <200 1,400 <20 <20 <20 <br /> Nov-99 -- -- <250 1,500 <25 <25 <25 -- -- <br /> Feb-00 -- — <250 4,000 <25 <25 <25 -- -- <br /> May-00 <5,000 <2 500 <500 3,800 <50 <50 <50 <50 <50 <br /> Aug-00 <5,000 <2,500 <500 1,200 <50 <50 <50 <50 <50 <br /> Nov-00 <2,500 <1,250 <250 2,600 <25 <25 <25 <25 <25 <br /> Mar-01 <25y000 <12,500 <1,000 1,200 <100 <100 <100 <100 <100 <br /> May-01 <200 3,800 <20 <20 <20 <20 <20 <br /> Aug-01 -- -- <250 2,000 <25 <25 <25 <25 <25 <br /> Dec-01 _= <500 17,000 <50 <50 <50 <50 <50 <br /> Feb-02 <1,000 15,000 <100 <100 <100 <100 <100 <br /> May-02 — -- <2,000 34,000 <200 <200 <200 <200 <200 <br /> Aug-02 -- -- <1,000 24,000 <100 <100 <100 <100 <100 <br /> Nov-02 -- -- <4 000 5,300 <400 <400 <400 <400 <400 <br />