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<br /> TABLE 3
<br /> OXYGENATED COMPOUNDS IN GROUNDWATER
<br /> Knowles- Rock
<br /> Stockton, California
<br /> Page 10 of 11
<br /> 10 (in parts per billion)
<br /> ' �4e*-aaa of Ethanol TBA
<br /> MW13 Nov-97 <50 <5 0 <5 0 <5 0 <5 0 --
<br /> Feb-98 -- <500 <30 <30 <30 <30
<br /> May-98 -- <600 <60 <60 <60 <60 -- --
<br /> ' Aug-98 -- <250 <50 <50 <50 <50
<br /> Nov-98 -- <500 <100 <100 <100 <100
<br /> Feb-99 -- -- <5,000 <100 <100 <100 <100 -- --
<br /> ' May-99 -- -- <50 <500 <50 <50 <50
<br /> Aug-99 -- -- <500 <50 <50 <50 <50
<br /> Aug-00 <103000 <5,000 <1,000 <100 <100 <100 <100 <100 <100
<br /> ' Nov-00 <20,000 <10,000 <2,000 <200 <200 <200 <200 <200 <200
<br /> Mar-01 <50,000 <25,000 <2,000 <200 <200 <200 <200 <200 <200
<br /> ' May-01 -- -- <2,000 <200 <200 <200 <200 <200 <200
<br /> Aug-01- Not Sampled
<br /> Nov-02
<br /> Jan-03 -- -_ Well Destroyed
<br /> MW13B Jan-03
<br /> <1,000 <100 <100 <100 <100 <100 <100
<br /> Feb-03 -- -- <2000 <200 <200 <200 <200 <200 <200
<br /> May-03 <2,000 <200 <200 <200 <200 940 <200
<br /> ' Aug-03 -- -- <2,000 <200 <200 <200 <200 230 <200
<br /> Nov-03 -- -- <2,000 <200 <200 <200 <200 <200 <200
<br /> MW14 Mar-01 <50,000 <25,000 <2,000 24,000 <200 <200 <200 <200 <200
<br /> May-01 -- -- <5,000 15,000 <500 <500 <500 <500 <500
<br /> ' Aug-01 =� ==
<br /> <400 3,100 <40 <40 <40 <40--
<br /> <40
<br /> Dec-01 <500 34,000 <50 <50 <50 370 550
<br /> Feb-02 -- --
<br /> <1,000 70,000 <100 <100 <100 <100 <100
<br /> May-02 -- -- <10,000 81,000 <1,000 <1,000 <1,000 <1,000 <1,000
<br /> tAug-02 -- -- <10,000 140,000 <1,000 <1,000 <1,000 <1,000 <1,000
<br /> Nov-02 __ <10,000 210,000 <1,000 <1,000 <1,000 <1,000 <1,000
<br /> ' Feb-03 =_ =_ <2000 110,000 <200 <200 <200 <200 <200
<br /> May-03 <10,000 100,000 <1,000 <1,000 <1,000 <1,000 <1,000
<br /> Aug-03 -- -- <2,000 63,000 <200 <200 <200 <200 <200
<br /> Nov-03 == -- <4,000 82,000 <400 <400 <400 <400 F<400
<br /> MW15A Jan-03 <20 34 <2 0 <2 0 <2 0 <2 0 <2 0
<br /> Feb-03 -- -- <20 59 <2 0 <2 0 <2 0 45 <2 0
<br /> May-03 -- <20 33 <2 0 <2 0 <2 0 4.7 <2 0
<br /> Aug-03 <20 86 <2 0 <2 0 <2 0 26 <2 0
<br /> Nov-03 -- <20 6 9 <2 0 <2 0 <2 0 43 <2 0
<br /> MW 15B Jan-03 -- <20 76 <2 0 <2 0 <2 0 55 <2 0
<br /> Feb-03 == <20 86 <2 0 <2 0 <2 0 84 <2 0
<br /> May-03 <20 190 <2 0 <2 0 <2 0 90 <2 0
<br /> Aug-03 -- -- <20 320 <2 0 <2 0 <2 0 6.8 <2 0
<br /> M Nov-03
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<br /> � I
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