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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 4 of 11)
<br />Well
<br />Sampling
<br />DIPS
<br />ETRE
<br />TAME
<br />TBA
<br />1,2 -DCA
<br />EDB Ethanol Methanol
<br />ID
<br />Date
<br />(N9/L)
<br />(ug/L)
<br />(N9/L)
<br />(u9/L)
<br />(Ng/L)
<br />(u9/L) (u9/L) (u9/L)
<br />MW4
<br />02/01/13
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000 - -
<br />MW4
<br />05/03/13
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000 ---- --
<br />MW4
<br />08/22/13
<br /><1,000
<br /><1,000
<br /><1,000
<br /><10,000
<br /><1,000
<br /><1,000 --- -
<br />MW4
<br />12/18/13
<br /><400
<br /><400
<br /><400
<br /><4,000
<br />460
<br /><400 --- --
<br />MW4
<br />03/20/14
<br /><400
<br /><400
<br /><400
<br /><4,000
<br /><400
<br /><400 -- --
<br />MW4
<br />06/12/14
<br /><100
<br /><100
<br /><100
<br /><1,000
<br />240
<br /><100 -- --
<br />MW4
<br />08/01/14
<br /><100
<br /><100
<br /><100
<br /><1,000
<br /><100
<br /><100 --- ---
<br />MW4
<br />10/28/14
<br /><100
<br /><100
<br /><100
<br /><1,000
<br />150
<br /><100 --- ---
<br />MW4
<br />02/06/15
<br /><100
<br /><100
<br /><100
<br /><1,000
<br />100
<br /><100
<br />MW5
<br />03/26/07
<br /><10,000
<br /><10,000
<br /><10,000
<br /><10,000
<br /><10,000
<br /><10,000
<br /><50,000
<br /><1,000
<br />MW5
<br />06/28/07
<br /><2,000
<br /><2,000
<br /><2,000
<br /><2,000
<br /><2,000
<br /><2,000
<br /><10,000
<br /><1,000
<br />MW5
<br />09/12/07
<br /><1,000
<br /><1,000
<br /><1,000
<br /><1,000
<br /><1,000
<br /><1,000
<br /><5,000
<br /><1,000
<br />MW5
<br />11/26/07
<br /><1,000
<br /><1,000
<br /><1,000
<br /><1,000
<br /><1,000
<br /><1,000
<br /><5,000
<br /><1,000
<br />MW5
<br />02/28/08
<br /><0.500
<br /><0.500
<br /><0.500
<br /><10.0
<br /><0.500
<br /><0.500
<br /><100
<br /><5,000
<br />MW5
<br />05/29/08
<br /><0.500
<br /><0.500
<br /><0.500
<br /><10.0
<br /><0.500
<br /><0.500
<br /><100
<br /><5,000
<br />MW5
<br />08/27/08
<br /><1.0
<br /><1.0
<br /><1.0
<br /><40
<br />1.4
<br /><1.0
<br /><200
<br /><100
<br />MW5
<br />11/13/08
<br /><0.50
<br /><0.50
<br /><0.50
<br /><20
<br />1.2
<br /><0.50
<br /><100
<br /><500
<br />MW5
<br />01/28/09
<br /><5.0
<br /><5.0
<br /><5.0
<br /><100
<br /><5.0
<br /><5.0
<br /><500
<br /><100
<br />MW5
<br />04/29/09
<br /><25
<br /><25
<br /><25
<br /><500
<br /><25
<br /><25
<br /><2,500
<br /><100
<br />MW5
<br />07/14/09
<br /><10
<br /><10
<br /><10
<br /><200
<br /><10
<br /><10
<br /><1,000
<br />150
<br />MW5
<br />10/28/09
<br /><10
<br /><10
<br /><10
<br /><200
<br /><10
<br /><10
<br /><1,000
<br /><100
<br />MW5
<br />01/25/10
<br /><50
<br /><50
<br /><50
<br /><1,000
<br /><50
<br /><50
<br /><5,000
<br /><100
<br />MW5
<br />04/07/10
<br /><25
<br /><25
<br /><25
<br /><500
<br />---
<br />•-•
<br /><2,500
<br /><100
<br />MW5
<br />08/09/10
<br /><25
<br /><25
<br /><25
<br /><500
<br />-••
<br /><2,500
<br /><100
<br />MW5
<br />10/06/10
<br /><25
<br /><25
<br /><25
<br /><500
<br />-••
<br />-
<br /><2,500
<br /><100
<br />MW5
<br />02/09/11
<br /><10
<br /><10
<br /><10
<br /><200
<br /><10
<br /><10
<br /><1,000
<br /><100
<br />MW5
<br />05/19/11
<br /><4.0
<br /><4.0
<br /><4.0
<br />55
<br /><4.0
<br /><4.0
<br />MW5
<br />09/22/11
<br /><2.0
<br /><2.0
<br /><2.0
<br /><20
<br /><2.0
<br /><2.0
<br />MW5
<br />12/01/11
<br /><2.0
<br /><2.0
<br /><2.0
<br /><20
<br /><2.0
<br /><2.0
<br />MW5
<br />03/15/12
<br /><2.5
<br /><2.5
<br /><2.5
<br /><25
<br /><2.5
<br /><2.5
<br />MW5
<br />05/03/12
<br /><2.0
<br /><2.0
<br /><2.0
<br /><20
<br /><2.0
<br /><2.0
<br />-
<br />--
<br />MW5
<br />08/24/12
<br /><2.0
<br /><2.0
<br /><2.0
<br /><20
<br /><2.0
<br /><2.0
<br />-
<br />MW5
<br />10/24/12
<br /><2.0
<br /><2.0
<br /><2.0
<br /><20
<br /><2.0
<br /><2.0
<br />-
<br />MW5
<br />01/31/13
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br />2.0
<br />--
<br />MW5
<br />05/03/13
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />MW5
<br />08/21/13
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br />2.8
<br /><0.50
<br />MW5
<br />12/18/13
<br /><0.50
<br /><0.50
<br /><0.50
<br />11
<br />2.3
<br /><0.50
<br />MW5
<br />03/20/14
<br /><0.50
<br /><0.50
<br /><0.50
<br />9.3
<br />1.8
<br /><0.50
<br />MW5
<br />06/12/14 m
<br />---
<br />---
<br />--
<br />---
<br />MW5
<br />08/01/14 m
<br />-
<br />-
<br />-
<br />-
<br />MW5
<br />10/28/14 m
<br />•-•
<br />---
<br />••-
<br />--
<br />--
<br />MW5
<br />02/06/15
<br /><0.50
<br /><0.50
<br /><0.50
<br /><5.0
<br /><0.50
<br /><0.50
<br />---
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