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TABLE OXYGENATED COMPOUNDS IN GROUNDWATER Knowles-Raek Stockton,California Page I of 11 (in parts per billion) ' s of P N 5.0 <5.0 vWl Feb-98 -<100 <5.0 <5.0 < -- --- 670 <50 <50 <50 <50 <50,000 <25,000 <5,000 <500 <500 <500 <500- <500 <500 <25,000 <12,500 <2,500 <250 <250 <250 <250 <250 490** Nov-00 <40,000 <20,000 <4,000 <400 <400 <400 <400 <400 1,200 -Mar-01 <100,000 <50,000 <4,000 <400 <400 <400 <400 <400 590 May-01 -- <2,000 <200 <200 <200 <200 390 1,200 Aug-01 <2,000 <200 <200 <200 <200 630 800 Dec-01 Not Sampled Feb-02 - - - -- May-02 <10'000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 Aug-02 Not Sampled <1,000 <1,000 <1,000 <1,000 Nov-02 Feb-03 <2,000 <200 1 <200 <200 <200 <200 930 May-03 Not Sampled - Aug-03 <200 <FOO <200 360 1 720 F0 Feb-00 M May_00 ay-00 <50'000 Aug () ug-00 <2 00 Nov-03 Not Sampled 240 Feb-04 I -- 1 <2000 <200 1 <200 <200 <200 510 May-04 Not Sampled Aug-04 <209 1 4.00 <200 <200 1,700 <200 Nov-04 Not Sampled - .100 , . VW2 Aug-00 <10,000 <5,000 <1,000 <100 <100 <100 <ioo <100 < Nov-00 <4,000 <2,000 <400 <40 <40 <40 <40 <40 <40 Mar-0 I <10,000 <5,000 <400 <40 <40 <40 <40 <40 <40 May-OI -- -- <200 <20 <20 <20 <20 <20 <20 Aug-01 Not Sampled. �4V <40 <40 <40 Dec-01 <400 49 1 -- Feb-02 <400 <40 <40 <40 <40 1 <40 <40 May-02 <400 <40 <40 <40 <40 J-<40 <40 Aug-02- Not Sampled Feb-04 <2 0 <2.0 May-04 J <20 F <2-0 I Aug-04- Not Sampled 4u < 40 ug-'14- L Noy-04 VW3 Nov-97 ==(Ici 0 Nov-97 Feb-98 1 <10 0 <5.0 Feb-(00 May-00 <500 <250 1 <50 1 Aug-0 <500 72--50 <50 <5.0 -<5.0 <5.0 <5.0 <5.0 <5.0 --7500 - Nov-00 <250 75-0 <5.0 5.0 <5.0 <5.0 <5.0 <5.0 - �--2,500 <1'25 <100 <10 <10 <10 <10 <10 <10 Mar-01 May-0 I <20 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 - Aug-01 <40 1 <4.0 , <4.0 <4.0 <4.0 <4.0 <4.0- Dec-01 Not Sampled <2.0 < .0 <2.0 ]�,-b--02 <20_ May-02- Not Sampled Au -02 I