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' TABLE 3
<br /> OXYGENATED COMPOUNDS IN GROUNDWATER
<br /> Knowles-Rock
<br /> Stockton,California
<br /> Page 1 of 12
<br /> (in parts per hiIlrun)
<br /> Well Date Methanol Ethanol: TBA MTBE D1PE E7BE TAME 1,2'DCA . EDB
<br /> t VWl Feb-98 == <100 <5.0 <5.0 <5.0 <5.0 -- --
<br /> Feb-00 670 <50 <M <50 <50
<br /> May-00 <50,000 <25,000 <5,000 <500 <500 <500 <500 <500 <500
<br /> Aug-00 <25,000 <12,500 <2,500 <250 <250 4.50 <250 <250 490**
<br /> Nov-00 <40,000 <20,000 <4,000 <400 <400 <400 <400 <400 I,200
<br /> Mar-01 <100,000 <50,000 <41000 1 <400 1 <400 <400 I <400 <400 590
<br /> May -- <2,000 <200 <200 <200 <200 1 390 1,200
<br /> Aug-01 <2,000j <200 1 <200 <200 <200 j 630 1 800
<br /> Dec-01
<br /> Feb-Q2 Not Sampled
<br /> Feb
<br /> May-02110,000 <1,000 <1,000 <1,000 <1,000-1 <1,000 I <1,000
<br /> Aug-02 <10,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000
<br /> Nov-02 Not Sampled
<br /> Feb-03 <2,000 400 1 <200 <200 <200 <200 930
<br /> May-03 Not Sampled
<br /> Aug-03 == <2,000 <200 1 <200 <200 1200 360 720
<br /> Nov-03 Not Sampled
<br /> Feb-04 4,000 400 1 <200 <200 <200 510 240
<br /> May-04 Not Sampled
<br /> Aug-04 -- -- <2,000 <200 1 <200 <200 <200 1,700 17<200
<br /> Nov-04 Not Sampled
<br /> Feb-05 <2,000 <200 1 <200 400 <200 1,100 1200
<br /> May-05 Not Sampled
<br /> '
<br /> Aug-05 - <4,000 <400 1 <400 <400 <400 830 <400
<br /> VW2 Aug-00 <10,000 <5,000 <1,000 <100 <100 <100 <100 <100 <100
<br /> Nov-00 <4,000 <2,000 <400 <40 <40 <40 <40 <40 <40
<br /> Mar-01 <10,000 <5,000 <400 <40 <40 <40 <40 <40 <40
<br /> ' May-01 -- -- <200 <20 <20 40 40 120 <20
<br /> Aug-01 Not Sampled
<br /> Dec-01 - <400 490 1 <40 <40 <40 140 140
<br /> Feb-02 <400 <40 j-<4 0 <40 <40 <40 140
<br /> May-02 -- <400 L <40 1 <40 <40 <40 <40 <40
<br /> Aug-02-
<br /> Feb-04 Not Sampled
<br /> May-04 <20 1 <2.0 1 <2.0 <2.0 <2.0 <2.0 <2.0
<br /> ' Aug-04- Not Sampled
<br /> Aug-05
<br /> VW3 Nov-97 <100 <20 <20 <20 <20 -- --
<br /> Feb-98 - <100 <5.0 <5.0 <5.0 <5.0
<br /> ' Feb-00 <50 <5.0 <5.0 <5.0 <5.0
<br /> May-00 <500 <250 <50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
<br /> Aug-00 <500 450 <50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
<br /> Nov-00 <500 1 <250 <50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
<br /> Mar-01 4-500 <1,250 <100 <10 <10 <10 <1 110 110
<br /> May-01 <20 <2.0 <2,0 4.0 <2.0 12.0 12.0
<br /> Aug-01 <40 <4.0 <4.0 <4.0 <4.0 <4.0 <Z6-
<br /> Dec-0 I
<br /> 4.0Dec-01 Not Sampled
<br /> LlFeb-02 120 Q.Q 4.0 <2.0 <2.0 <2.0 12.0
<br /> May-02-
<br /> Aug-02 Not Sampled
<br /> i�
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