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TABLE IB
<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 6)
<br /> Wn'I Samplin; DIPr ETB= TAME TBA 1,2-DCA EDS Ethanol me_t•ancl
<br /> ID Date (Ng/L) (Ng/L) (Ng/L) (Ng/L) (Ng/L) (ug/L) (Ng/L) (Ng/L)
<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 /> 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 /> 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 /> EX1 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
<br /> -- - <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 <1,000 <1,000 <1,000 <10,000 <1,000 <1,000
<br /> EXI 09/22/11 1 ---
<br /> EX2 07/14/09 <1,200 <1,200 <1,200 <25,000 <1,200 <1,200 <120,000 180
<br /> EX2 10/27/09 <1,200 <1,200 <1,200 <25,000 <1,200 <1,200 <120,000 <100
<br /> EX2 01/25/10 <1,000 <1,000 <1,000 <20,000 <1,000 <1,000 <100,000 <100
<br /> EX2 04/07/10 <500 <500 <500 <10,000 --- - <50,000 <100
<br /> EX2 08/10/10 <1,000 <1,000 <1,000 <20,000 - - <100,000 <100
<br /> EX2 02/09/11 <1,000 <1,000 <1,000 <20,000 <1,000 <1,000 <100,000 <100
<br /> EX2 05/19/11 <1,000 <1,000 <1,000 <10,000 <1,000 <1,000
<br /> EX2 09/22/11 1 --
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