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TABLE IA
<br />CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA
<br />Former Mobil Service Station 99CAS
<br />75 East Alpine Avenue
<br />Stockton, California
<br />(Page 8 of 13)
<br />Well
<br />ID
<br />Sampling
<br />Date
<br />TOC DTW GW Elev- NAPL TPHd TPHg O&G MTBE B T E Y PCBs SVOCs
<br />(feet) (feet) (feet) (feet) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (Ng/L) (ug/L) (Ng/L) (Ng/L) (Ng/L)
<br />MW8
<br />08/01/14 m
<br />15.45 - - -- - - -
<br />MW8
<br />10/28/14 m
<br />15.45 - - --- - ---
<br />MW8
<br />02/05/15
<br />15.45 35.93 -20.48 No <50a <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 --- ---
<br />DWI
<br />02/23/09
<br />16.99
<br />39.48
<br />-22.49
<br />No
<br />--
<br />59,000
<br /><50
<br />5,600k
<br />12,OOOk
<br />1,800k
<br />9,800k ...
<br />DWI
<br />04/29/09
<br />16.99
<br />39.35
<br />-22.36
<br />No
<br /><50
<br />37,000
<br /><250
<br />2,800
<br />6,500
<br />870
<br />4,600
<br />DWI
<br />07/14/09
<br />16.76
<br />41.17
<br />-24.41
<br />No
<br /><50
<br />14,000
<br />--- <50
<br />1,200
<br />2,500
<br />470
<br />2,400
<br />DWI
<br />10/27/09
<br />16.76
<br />41.44
<br />-24.68
<br />No
<br />57d
<br />8,000
<br />- <25
<br />990
<br />1,100
<br />360
<br />1,500 - -
<br />DWI
<br />01/25/10
<br />16.76
<br />39.59
<br />-22.83
<br />No
<br />73d
<br />6,400
<br /><12
<br />640
<br />590
<br />260
<br />1,000 -
<br />DWI
<br />04/07/10
<br />16.76
<br />37.65
<br />-20.89
<br />No
<br /><50
<br />5,700
<br />--- 4.1j
<br />550
<br />500
<br />240
<br />900 --- ---
<br />DWI
<br />08/09/10
<br />16.76
<br />37.59
<br />-20.83
<br />No
<br />-
<br />---
<br />--- ---
<br />--
<br />-•-
<br />DWI
<br />08/10/10
<br />16.76
<br />---
<br />---
<br />---
<br /><50
<br />4,400
<br />--- <10
<br />440
<br />320
<br />180
<br />620 - -
<br />DWI
<br />10/05/10
<br />16.76
<br />38.34
<br />-21.58
<br />No
<br />73d
<br />5,900
<br />--- 4.5j
<br />510
<br />300
<br />180
<br />590 -
<br />DWI
<br />02/09/11
<br />16.76
<br />36.94
<br />-20.18
<br />No
<br /><50a
<br />4,200
<br />--- <10
<br />350
<br />730
<br />100
<br />480 - -
<br />DWI
<br />05/18/11
<br />16.76
<br />34.04
<br />-17.28
<br />No
<br />-
<br />--
<br />-
<br />-
<br />DWI
<br />05/19/11
<br />16.76
<br />--
<br />-
<br />94d
<br />7,600
<br />- <10
<br />1,400
<br />2,400
<br />130
<br />710 - --
<br />DWI
<br />09/22/11 1
<br />16.76
<br />34.11
<br />-17.35
<br />No
<br />--
<br />---
<br />---
<br />--•
<br />---
<br />-•-
<br />DWI
<br />11/30/11
<br />16.76
<br />33.05
<br />-16.29
<br />No
<br />190a,d
<br />2,400
<br />5.6
<br />240
<br />320
<br />23
<br />120
<br />DWI
<br />03/14/12
<br />16.76
<br />31.98
<br />-15.22
<br />No
<br />---
<br />--- ---
<br />---
<br />---
<br />--- --- ---
<br />DWI
<br />03/15/12
<br />16.76
<br />---
<br />-••
<br />-
<br />400a,d
<br />3,600
<br />--- <25
<br />540
<br />330
<br />57
<br />190
<br />DWI
<br />05/03/12
<br />16.76
<br />31.84
<br />-15.08
<br />No
<br />320a,d
<br />13,OOOd
<br />--- <50
<br />650
<br />230
<br /><50
<br />150 ---
<br />DWI
<br />08/24/12
<br />16.76
<br />33.53
<br />-16.77
<br />No
<br />470a,d
<br />4,300d
<br />--- <100
<br />660
<br />200
<br /><100
<br /><100 ---
<br />DWI
<br />10/24/12
<br />16.76
<br />33.81
<br />-17.05
<br />No
<br />230a,d
<br />11,000d
<br />- 5.2
<br />270
<br />51
<br />16
<br />41 - --
<br />DWI
<br />01/31/13
<br />16.76
<br />32.15
<br />-15.39
<br />No
<br />-
<br />•-•
<br />•••
<br />---
<br />DWI
<br />02/01/13
<br />16.76
<br />--
<br />---
<br />--
<br />6,800a,d
<br />120,000
<br />--- <100
<br />3,200
<br />42,000
<br />4,300
<br />21,000
<br />DWI
<br />05/03/13
<br />16.76
<br />32.01
<br />-15.25
<br />No
<br />160a,d
<br />3,100d
<br /><50
<br />690
<br />260
<br />71
<br />69 --- ---
<br />DWI
<br />08/21/13
<br />16.76
<br />32.35
<br />-15.59
<br />No
<br />---
<br />---
<br />•-•
<br />-
<br />---
<br />---
<br />DWI
<br />08/22/13
<br />16.76
<br />---
<br />---
<br />570a,d
<br />3,300
<br /><12
<br />920
<br />33
<br />130
<br />130 -
<br />DWI
<br />12/18/13
<br />16.76
<br />32.51
<br />-15.75
<br />No
<br /><50a
<br /><50
<br />--- <0.50
<br />0.81
<br />1.9
<br />0.87
<br />5.1 -
<br />DWI
<br />03/19/14
<br />16.76
<br />32.42
<br />-15.66
<br />No
<br />-
<br />---
<br />-- --
<br />-•-
<br />-•-
<br />---
<br />DWI
<br />03/20/14
<br />16.76
<br />---
<br />••.
<br />-
<br /><48a
<br /><50
<br />- <0.50
<br />0.52
<br />0.98
<br /><0.50
<br />0.83
<br />DWI
<br />06/12/14 m
<br />16.76
<br />32.02
<br />-15.26
<br />No
<br />-
<br />- ---
<br />---
<br />-
<br />---
<br />DWI
<br />08/01/14 m
<br />16.76
<br />-
<br />-
<br />-
<br />-
<br />---
<br />--- -
<br />DWI
<br />10/28/14 m
<br />16.76
<br />-
<br />-
<br />-
<br />-
<br />---
<br />---
<br />--- ---
<br />DW1
<br />02/05/15 p
<br />16.76
<br />---
<br />---
<br />---
<br />---
<br />--- ---
<br />---
<br />---
<br />---
<br />--
<br />DW1
<br />02/25/15
<br />16.76
<br />36.63
<br />-19.87
<br />No
<br /><48a
<br /><50
<br /><0.50
<br />4-2
<br />7.7
<br />0.96
<br />5.5 ---
<br />DW2
<br />02/23/09
<br />16.76
<br />37.47
<br />-20.71
<br />No
<br />---
<br />970
<br />- <2.0
<br />45k
<br />55k
<br />14k
<br />70k --- --
<br />DW2
<br />04/29/09
<br />16.76
<br />38.67
<br />-21.91
<br />No
<br /><50
<br />51
<br />- <0.50
<br />1.9
<br />1.3
<br />0.24j
<br />2.7 ---
<br />DW2
<br />07/14/09
<br />16.01
<br />40.51
<br />-24.50
<br />No
<br /><50
<br />60
<br />.-- <0.50
<br />0.86
<br />0.69
<br />0.089]
<br />1.0 -
<br />DW2
<br />10/27/09
<br />16.01
<br />40.75
<br />-24.74
<br />No
<br />---
<br />---
<br />--- --
<br />---
<br />-••
<br />-••
<br />-- --
<br />DW2
<br />10/28/09
<br />16.01
<br />--
<br />---
<br />-
<br /><50
<br />50
<br />--- <0.50
<br />1.6
<br />24
<br />0.64
<br />1.8
<br />DW2
<br />01/25/10
<br />16.01
<br />38.79
<br />-22.78
<br />No
<br /><50
<br /><50
<br />--- <0.50
<br /><0.50
<br /><0.50
<br />0.090]
<br />0.42j --- -
<br />
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