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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 9 of 11)
<br />Well
<br />Sampling
<br /><1,200
<br />DIPE
<br />ETBE
<br />TAME
<br />TBA
<br />1,2 -DCA
<br />EDB
<br />Ethanol
<br />Methanol
<br />ID
<br />Date
<br /><1,200
<br />(N9/L)
<br />(Ng/L)
<br />(ug/L)
<br />(wg/L)
<br />(ug/L)
<br />(ug/L)
<br />(ug/L)
<br />(ug/L)
<br />DW4
<br />10/05/10
<br /><1,200
<br /><0.50
<br /><0.50
<br /><0.50
<br /><10
<br />---
<br />-
<br /><50
<br /><100
<br />DW4
<br />02/09/11
<br /><20,000
<br /><0.50
<br /><0.50
<br /><0.50
<br /><10
<br /><0.50
<br /><0.50
<br /><50
<br /><100
<br />DW4
<br />05/18/11
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />--
<br />---
<br />DW4
<br />09/22/11
<br />--
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />--
<br /><20,000
<br />DW4
<br />11/30/11
<br /><100,000
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />--
<br /><1,000
<br />DW4
<br />03/14/12
<br />---
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />--
<br />-
<br />DW4
<br />05/03/12
<br />EX1
<br />Well inaccessible.
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />DW4
<br />08/24/12
<br />m
<br />---
<br />--
<br />--•
<br />---
<br />---
<br />---
<br />DW4
<br />10/24/12
<br />m
<br />---
<br /><1,000
<br />---
<br />---
<br />---
<br />---
<br />EX1
<br />DW4
<br />01/31/13
<br /><1,000
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />EX1
<br />10/24/12
<br />DW4
<br />05/03/13
<br />m
<br />--
<br /><1,000
<br />--
<br />--
<br />---
<br />---
<br />-
<br />-
<br />DW4
<br />08/21/13
<br />m
<br /><400
<br />-
<br />•-•
<br />---
<br />EX1
<br />05/03/13
<br /><400
<br /><400
<br />DW4
<br />12/18/13
<br />m
<br />---
<br />---
<br />---
<br />---
<br />---
<br />---
<br />-
<br />-
<br />DW4
<br />03/19/14
<br /><500
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />-
<br />-
<br />DW4
<br />06/12/14
<br />m
<br />-
<br />---
<br />---
<br />---
<br />---
<br />---
<br />-
<br /><500
<br />DW4
<br />08/01/14
<br />m
<br />EX1
<br />06/12/14
<br /><40
<br /><40
<br />-
<br />-
<br />49
<br /><40
<br />DW4
<br />10/28/14
<br />m
<br />---
<br />•--
<br />---
<br />---
<br />---
<br />---
<br />DW4
<br />02/05/15
<br />08/20/14
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />-
<br />EX1
<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 />86j
<br />EX1
<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 />EX1
<br />01/25/10
<br /><1,200
<br /><1,200
<br /><1,200
<br /><25,000
<br /><1,200
<br /><1,200
<br /><120,000
<br /><100
<br />EX1
<br />04/07/10
<br /><1,000
<br /><1,000
<br /><1,000
<br /><20,000
<br />---
<br />--
<br /><100,000
<br /><100
<br />EX1
<br />08/10/10
<br /><1,000
<br /><1,000
<br /><1,000
<br /><20,000
<br /><100,000
<br />73j
<br />EX1
<br />10/06/10
<br /><1,000
<br /><1,000
<br /><1,000
<br /><20,000
<br />---
<br />--
<br /><100,000
<br /><100
<br />EX1
<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 />EX1
<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 />EX1
<br />09/22/11 1
<br />---
<br />--
<br />.-•
<br />--
<br />--
<br />-
<br />---
<br />---
<br />EX1
<br />11/30/11
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />EX1
<br />03/15/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />EX1
<br />05/04/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />EX1
<br />08/24/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />---
<br />---
<br />EX1
<br />10/24/12
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000
<br />EX1
<br />02/01/13
<br /><400
<br /><400
<br /><400
<br /><4,000
<br /><400
<br /><400
<br />...
<br />EX1
<br />05/03/13
<br /><400
<br /><400
<br /><400
<br /><4,000
<br /><400
<br /><400
<br />EX1
<br />08/22/13
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br />-
<br />EX1
<br />12/18/13
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br />EX1
<br />03/20/14
<br /><500
<br /><500
<br /><500
<br /><5,000
<br /><500
<br /><500
<br />EX1
<br />06/12/14
<br /><40
<br /><40
<br /><40
<br /><400
<br />49
<br /><40
<br />•••
<br />...
<br />EX1
<br />08/01/14 o
<br />---
<br />---
<br />---
<br />--
<br />EX1
<br />08/20/14
<br /><100
<br /><100
<br /><100
<br /><1,000
<br /><100
<br /><100
<br />EX1
<br />10/28/14
<br /><40
<br /><40
<br /><40
<br /><400
<br /><40
<br /><40
<br />EX1
<br />02/06/15
<br /><40
<br /><40
<br /><40
<br /><400
<br /><40
<br /><40
<br />-•-
<br />
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