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TABLE 1B
<br />ADDITIONAL CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA
<br />Former Mobil Service Station 99CAS
<br />75 East Alpine Avenue
<br />Stockton, California
<br />(Page 10 of 11)
<br />Well Sampling DIPE ETBE TAME TBA 1,2 -DCA EDB Ethanol Methanol
<br />ID Date (Ng/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (Ng/L) (Ng/L)
<br />EX2
<br />07/14/09
<br /><1,200
<br /><1,200
<br /><1,200
<br /><25,000
<br /><1,200
<br /><1,200
<br /><120,000
<br />180
<br />EX2
<br />10/27/09
<br /><1,200
<br /><1,200
<br /><1,200
<br /><25,000
<br /><1,200
<br /><1,200
<br /><120,000
<br /><100
<br />EX2
<br />01/25/10
<br /><1,000
<br /><1,000
<br /><1,000
<br /><20,000
<br /><1,000
<br /><1,000
<br /><100,000
<br /><100
<br />EX2
<br />04/07/10
<br /><500
<br /><500
<br /><500
<br /><10,000
<br />-•-
<br />--
<br /><50,000
<br /><100
<br />EX2
<br />08/10/10
<br /><1,000
<br /><1,000
<br /><1,000
<br /><20,000
<br />---
<br /><100,000
<br /><100
<br />EX2
<br />02/09/11
<br /><1,000
<br /><1,000
<br /><1,000
<br /><20,000
<br /><1,000
<br /><1,000
<br /><100,000
<br /><100
<br />EX2
<br />05/19/11
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />---
<br />---
<br />EX2
<br />09/22/11 1
<br />---
<br />---
<br />---
<br />---
<br />___
<br />EX2
<br />11/30/11
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />EX2
<br />03/15/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />---
<br />---
<br />EX2
<br />05/04/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />---
<br />EX2
<br />08/24/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />EX2
<br />10/24/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />---
<br />EX2
<br />02/01/13
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br />EX2
<br />05/03/13
<br /><400
<br /><400
<br /><400
<br /><4,000
<br /><400
<br /><400
<br />...
<br />EX2
<br />08/22/13
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br />-
<br />EX2
<br />12/18/13
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br />---
<br />---
<br />EX2
<br />03/20/14
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br />--
<br />EX2
<br />06/12/14
<br /><100
<br /><100
<br /><100
<br /><1,000
<br />130
<br /><100
<br />EX2
<br />08/01/14 o
<br />---
<br />--
<br />--
<br />•--
<br />---
<br />-
<br />-
<br />EX2
<br />08/20/14
<br /><100
<br /><100
<br /><100
<br /><1,000
<br /><100
<br /><100
<br />-
<br />-
<br />EX2
<br />10/28/14
<br /><50
<br /><50
<br /><50
<br /><500
<br /><50
<br /><50
<br />EX2
<br />02/06/15
<br /><50
<br /><50
<br /><50
<br /><500
<br /><50
<br /><50
<br />---
<br />Grab Groundwater Samples
<br />W-34-SVE1
<br />09/26/11
<br /><100
<br /><100
<br /><100
<br /><1,000
<br /><100
<br /><100
<br /><10,000
<br />W-34.5-SVE2
<br />09/26/11
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br /><50,000
<br />W-35-AS3
<br />09/20/11
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br /><100,000
<br />W-45-AS4
<br />08/24/11
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br /><50,000
<br />W-35-SVE5
<br />08/31/11
<br /><2.5
<br /><2.5
<br /><2.5
<br />34
<br /><2.5
<br /><2.5
<br /><250
<br />---
<br />W-35-AS6
<br />09/26/11
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br /><50,000
<br />---
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