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TABLE
<br /> OXYGENATED COMPOUNDS IN GROUNDWATER
<br /> Knowles-Rock
<br /> Stockton,California
<br /> Page I of 12
<br /> (in parts per billion)
<br /> b TACE 1,2 DCA EX)B
<br /> vWl Feb-98 <100 <5.0 <5.0 <5.0 <5.0
<br /> Feb-00 670 <50 <50 <50 <50
<br /> May-00 <50,000 <23,000 <5,000 <500 <500 <500 <500 <500 <500
<br /> Aug-00 <25,000 <12,500 <2,500 1 450 <250 <250 <250 <250 490**
<br /> Nov-00 <40,000 <20,000 <4,000 <400 <400 <400 <400 <400 1,200
<br /> Mar-01 <100,000 <50,000 <4,000 <400 <400 1 <400 1 <400 1 <400 590
<br /> May-01 - <2,000 <200 <200 400 <200 390 1,200
<br /> Aug-01 <2,000 <200 <200 <200 <200 630 800
<br /> Dec-01
<br /> Feb-02 Not Sampled
<br /> May-02 <10,000 <1,000 <1,000 <1,000 <1,000 <1,000 o<I,
<br /> '0 0
<br /> Aug-02 <10,000 <1,000 <1,000 I <1,000 I <1,000 I <1'000 <1,000
<br /> Nov-02 Not Sampled
<br /> Feb-03 <2,000 <200 1 400 <200 400 _I <200 930
<br /> May-03 Not Sampled
<br /> Aug-03 L4,000 1 <200 1 <200 <200 <200-F-360 720
<br /> Nov-03 Not Sampled
<br /> Feb-04 _Lq,000 1 400 1 <200 1 <200 1 <200 1 510 240
<br /> May-04 Not Sampled
<br /> Aug-04 <2,000 400 <200 <200 <200 1,700 <200
<br /> Nov-04 Not Sampled
<br /> Feb-05 <2,000 <200 <200 <200 <200 1,100 <200
<br /> L May-05 Not Sampled
<br /> VW2 Aug-00 <10,000 <5,000 <1,000 <100 <100 <100 -Z100 <100 <100
<br /> Nov-00 <4,000 4,000 <400 <40 <40 <40 <40 <40 <40
<br /> Mar-01 <t0,000 <5,000 <400 <40 <40 <40 <40 <40 <40
<br /> May-01 -- -- <200 <20 <20 <20 <20 40 <20
<br /> Aug-01 Not Sampled
<br /> Dec-01 <40-0 490 <40 <40 <40 <40 <40
<br /> Feb-02 <400 <40 <40 <40 <40 <40 <40
<br /> May-02 <400 <40 <40 :2t <40 <40 <40
<br /> Aug-02-
<br /> Feb-04 Not Sampled
<br /> May-04 <20 <2.0 <2.0 <2.0 <2,0 <2.0 L <2.01
<br /> Aug-04-May-05 Not Sampled -
<br /> VW3 Nov-97 <100 <20 <20 <20 <20 -- --
<br /> Feb-99 <100 <5.0 <5.0 <5.0 <5.0
<br /> Feb-00 <50 <5.0 <5.0 <5.() <5.0 -- --
<br /> May-00 <500 <250 <50 <5.0 <5.0 <5.0 <5,0 <5.0 <5.0
<br /> Aug-00 <500 <250 <50 <5.0 <5,0 <5.0 <5.0 <5.0 <5.()
<br /> Nov-00 <500 <250 <50 <5.0 <5.0 <5.0 <5.0 1 <5.0 <5.0
<br /> Mar-01 <2,500 <11250 <100 <10 <10 <10 <10 <10 <10
<br /> May-01 -- -- <20 <2.0 <2.0 <2.0 4.0
<br /> <.O <10
<br /> Aug-91 <40 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0
<br /> Dec-01 Not Sampled
<br /> Feb-02 1 <20_1_ <2,0_1 <2.0 <2,0 12.0 <2.0----F-,20
<br /> May-02- Not Sampled
<br /> Aug-02
<br />
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