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TABLE 1B
<br /> ADDITIONAL CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA
<br /> Former Mobil Service Station 99CAS
<br /> 75 E.Alpine Avenue
<br /> Stockton,California
<br /> (Page 5 of 7)
<br /> Well Sampling DIPS LTBF TAME TBA 1,2-DCA EDB Ethanol Methanol
<br /> ID Date (poo-) (pull..) (pg1L) (PW1.) (pg(L) (pglL) (pglL) (pg/L)
<br /> DW2 01/25/10 <0.50 <0.50 <0.50 <10 0.09j <0.50 <50 <100
<br /> DW2 04/07/10 <0.50 <0.50 <0-50 <10 --- <50 <100
<br /> DW2 08/10/10 <0.50 <0.50 <0.50 <10 ... --- <50 <100
<br /> DW2 10/06/10 <0.50 <0.50 <0.50 <10 --- -- <50 <100
<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 /> DW2 09/22/11 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- ---
<br /> DW2 12/01/11 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 ---
<br /> DW2 03/14112 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- ---
<br /> DW3 02/23/09 <25 <25 <25 <500 <25 <25 <2,500 ---
<br /> DW3 04/29/09 <5.0 <5.0 <5.0 <100 <5.0 <5.0 <500 <100
<br /> DW3 07/14/09 <5.0 <5.0 <5.0 <100 <5.0 <5.0 <500 180
<br /> DW3 10/28/09 <5.0 <5.0 <5.0 <100 <5.0 <5.0 <500 <100
<br /> DW3 01/25/10 <10 <10 <10 <200 <10 <10 <1,000 <100
<br /> DW3 04/07/10 <10 <10 <10 <200 --- --- <1,000 <100
<br /> DW3 08/10/10 <10 <10 <10 <200 -» -- <1,000 <100
<br /> DW3 10/06/10 <10 <10 <10 <200 --- - <1,000 <100
<br /> DW3 02/09/11 <10 <10 <10 <200 <10 <10 <1,000 <100
<br /> DW3 05/19/11 <0 50 <0.50 <0.50 <5.0 1.4 <0.50 --- ---
<br /> DW3 09/22/11 1 - -
<br /> DW3 12/01/11 <0.50 <0.50 <0.50 <5.0 1.0 0.82 ---
<br /> DW3 03/15/12 <50 <50 <50 <500 <50 <50 --- ---
<br /> DW4 07/14/09 <0.50 <0.50 <0.50 <10 1.1 <0.50 <50 260
<br /> DW4 10/27/09 <0.50 <0.50 <0.50 <10 0.81 <0.50 <50 <100
<br /> DW4 01/25/10 <0.50 <0.50 <0.50 <10 0.37 <0.50 <50 <100
<br /> DW4 04/07/10 <0.50 <0.50 <0.50 <10 -- --- <50 <100
<br /> DW4 08/09/10 <0.50 <0.50 <0.50 <10 <50 <100
<br /> DW4 10/05/10 <0.50 <0.50 <0.50 <10 --- --- <50 <100
<br /> DW4 02/09/11 <0.50 <0.50 <0.50 <10 <0.50 <0.50 <50 <100
<br /> DW4 05/18/11 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 ---
<br /> DW4 09/22/11 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50
<br /> DW4 11/30/11 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- ---
<br /> DW4 03/14/12 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 --- ---
<br /> EX1 07/14/09 <1,200 <1,200 <1,200 <25,000 <1,200 <1,200 <120,000 86j
<br /> EX1 10/27/09 <1,200 <1,200 <1,200 <25,000 <1,200 <1,200 <120,000 <100
<br /> EXII 01/25/10 <1,200 <1,200 <1,200 <25,000 <1,200 <1,200 <120,000 <100
<br /> EX1 04/07/10 <1,000 <1,000 <1,000 <20,000 -•- --- <100,000 <100
<br /> EX1 08/10/10 <1,000 <1,000 <1,000 <20.000 -- <100,000 73j
<br /> EX1 10/06/10 <1,000 <1,000 <1,000 <20,000 --- --- <100,000 <100
<br /> EX1 02/09/11 <1,000 <1,000 <1,000 <20,000 <1,000 <1,000 <100,000 <100
<br /> EX1 05/19/11 0,000 <1,000 <1,000 <10,000 <1,000 <1,000 ---
<br /> EX1 09/22/11 1 --- ___
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