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TABLE 1 B <br /> ADDITIONAL CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA <br /> Former Mobil Service Station 99CAS <br /> 75 East Alpine Avenue <br /> Stockton,California <br /> (Page 6 of 9) <br /> Well Sampling DIPS ETBE TAME TBA 1.2-DCA EDB Ethanol Methanol <br /> ID Date (u9/L) (pg/L) (ug/L) (ug/L) (ug/L) (ug/L) (Ng/L) (ug/L) <br /> DW1 02/23/09 <50 <50 <50 <1,000 <50 <50 <5,000 -- <br /> DW1 04/29/09 <250 <250 <250 <5,000 <250 <250 <25,000 <100 <br /> DW1 07/14/09 <50 <50 <50 <1,000 <50 <50 <5,000 510 <br /> DW1 10/27/09 <25 <25 <25 <500 48 <25 <2,500 <100 <br /> DW1 01/25/10 <12 <12 <12 <250 <12 <12 <1,200 <100 <br /> <10 <10 <10 <200 <1,000 <100 <br /> DW 1 04/07110 --- --- <br /> <10 <10 <10 <200 <1,000 <100 <br /> DW 1 08/10/10 --- --- <br /> <10 <10 <10 <200 <1,000 <100 <br /> DW 1 10105/10 --- ' <br /> DW1 02/09/11 <10 <10 <10 <200 21 <10 <1,000 <100 <br /> DW1 05/19/11 <10 <10 <10 <100 22 <10 --- --- <br /> DW1 09/22/11 1 --- --- --- --- -- <br /> DW1 12/01/11 <5.0 <5.0 <5.0 <50 15 <5.0 <br /> DW1 03/15/12 <25 <25 <25 <250 <25 <25 --- <br /> DW1 05/03/12 <50 <50 <50 <500 <50 <50 <br /> DW1 08/24/12 <100 <100 <100 <1,000 <100 <100 <br /> DW1 10/24/12 <5.0 <5.0 <5.0 <50 <5.0 <5.0 <br /> DW1 02/01/13 <100 <100 <100 <1,000 <100 <100 <br /> DW1 05/03/13 <50 <50 <50 <500 <50 <50 <br /> DW1 08/22/13 <12 <12 <12 <120 16 <12 - <br /> DW1 12/18/13 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- <br /> <2.0 <2.0 <2.0 <40 <2.0 <2.0 <200 <br /> DW2 02123/09 --- <br /> DW2 04/29/09 <br /> <0.50 <0.50 <0.50 <10 0.11 <0.50 <50 <100 <br /> DW2 07/14/09 <br /> <0.50 <0.50 <0.50 <10 <0.50 <0.50 <50 680 <br /> DW2 10/28/09 <0.50 <0.50 <0.50 <10 0.092j <0.50 <50 <100 <br /> DW2 01/25/10 <0.50 <0.50 <0.50 <10 0.09j <0.50 <50 <100 <br /> < <100 <br /> DW2 04/07/10 <0.50 <0.50 <0.50 <10 --• ••• 5 <br /> DW2 08/10/10 <0.50 <0.50 <0.50 <10 - <50 <100 <br /> <0.50 <0.50 <0.50 <10 <50 <100 <br /> DW2 10/06/10 --- --- <br /> DW2 02/09/11 <0.50 <0.50 <0.50 <10 <0.50 <0.50 <50 <100 <br /> DW2 05/19/11 <0.50 <0.50 <0.50 30 0.76 <0.50 ... --- <br /> <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <br /> DW2 09/22/11 --- --" <br /> DW2 12/01/11 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- <br /> DW2 03/14/12 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 - <br /> DW2 05/03/12 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 - <br /> DW2 08/24/12 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <br /> DW2 10/24/12 n - --- --- --- <br /> DW2 01/31/13 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- ••. <br /> DW2 05/03/13 n - --- •-• -- -- <br /> DW2 08/21/13 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- <br /> DW2 12/18/13 n - --- --- --- --- --- " <br />