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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 6 of 7)
<br /> Well Sampling PIPE ETRE TAME TBA 1.2-DCA EDB Elhanol Methanol
<br /> ID Date (jjg/L) (U9/L) (ug/L) (40 (I1WL) (pg/L) (41.) (Ng/L)
<br /> EX1 11/30/11 <1,000 <1,000 <1,000 <10,000 <1,000 <1,000
<br /> EX1 03/15/12 <1,000 <1,000 <1,000 <10,000 <1,000 <1,000
<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 -.- _ --_
<br /> EX2 11/30/11 <1,000 <1,000 <1,000 <10,000 <1,000 <1,000 --- ---
<br /> EX2 03/15/12 <1,000 <1,000 <1,000 <10,000 <1,000 <1,000 --- ---
<br /> Grab Groundwater Samples
<br /> W-34-SVE1 09/26/11 <100 <100 <100 <1,000 <100 <100 <10,000 ---
<br /> W-34.5-SVE2 09/26/11 <500 <500 <500 <5,000 <500 <500 <50,000 ---
<br /> W-35-AS3 09/20/11 <1,000 <1,000 <1,000 <10,000 <1,000 <1,000 <100,000 ---
<br /> W-45-AS4 08/24/11 <500 <500 <500 <5,000 <500 <500 <50,000 ---
<br /> W-35-SVE5 08/31/11 <2.5 <2.5 <2.5 34 <2.5 <2.5 <250 ---
<br /> W-35-AS6 09/26/11 <500 <500 <500 <5,000 <500 <500 <50,000 ---
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