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TABLE 2
<br />Historical Groundwater Monitoring & Analytical Data
<br />Stockton Charter Way Commingled Plume
<br />440, 441, and 508 West Charter Way, 1426, and 1444 South Lincoln Street, Stockton, CA
<br />Well No.
<br />Date
<br />Notes
<br />TOC
<br />Elevation
<br />(ft -MSL)
<br />Depth
<br />to
<br />Water
<br />(feet)
<br />Measured
<br />SPH
<br />Thickness
<br />(feet)
<br />Calc.
<br />GW
<br />Elev.
<br />(ft -MSL)
<br />TPHg
<br />(p9/L)
<br />TPHd
<br />(p9/L)
<br />Motor
<br />Oil
<br />(N9/L)
<br />B
<br />(p9/L)
<br />T
<br />(p9/L)
<br />E
<br />(p9/L)
<br />X
<br />(p9/L)
<br />MTBE
<br />(p9/L)
<br />TBA
<br />(p9/L)
<br />DIPE
<br />(p9/L)
<br />ETBE
<br />(p9/L)
<br />TAME
<br />(p9/L)
<br />Ethanol
<br />(p9/L)
<br />McOH
<br />(p9/L)
<br />1'2
<br />DCA
<br />(p9/L)
<br />EDB
<br />(p9/L)
<br />D.O.
<br />(m9/L)
<br />Comments
<br />CMW-7B 04/07/11
<br />12.00
<br />-
<br />-
<br />-
<br />81,000
<br />21,000
<br />16,000
<br />1,000
<br />4,800
<br />2,700
<br />1,000
<br />-
<br />A Zone
<br />10/03/11
<br />17.14
<br />0.00
<br />-5.14
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.20
<br />10/04/11
<br />-
<br />-
<br />-
<br />65,000
<br />16,000
<br />10,000
<br />1,300
<br />6,100
<br />2,200
<br />1,200
<br />-
<br />04/09/12
<br />18.20
<br />0.00
<br />-6.20
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/10/12
<br />-
<br />-
<br />-
<br />100,000
<br />19,000
<br />13,000
<br />1,900
<br />9,300
<br />1,700
<br />1,600
<br />0.60
<br />Odor
<br />10/16/12
<br />17.50
<br />0.00
<br />-5.50
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.30
<br />10/18/12
<br />-
<br />-
<br />-
<br />86,000
<br />12,000
<br />6,800
<br />1,500
<br />7,400
<br />1,200
<br />1,600
<br />-
<br />04/22/13
<br />16.80
<br />0.00
<br />-4.80
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />1.27
<br />04/25/13
<br />-
<br />-
<br />-
<br />100,000
<br />22,000
<br />12,000
<br />2,600
<br />11,000
<br />610
<br />2,700
<br />-
<br />10/14/13
<br />18.83
<br />0.00
<br />-6.83
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.54
<br />10/15/13
<br />-
<br />-
<br />-
<br />30,000
<br />180
<br />1,400
<br />180
<br />5,700
<br />31
<br />2,700
<br />-
<br />04/22/14
<br />17.71
<br />0.00
<br />-5.71
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />3.11
<br />04/23/14
<br />-
<br />-
<br />-
<br />3,200
<br />3.7
<br />19
<br />2.7
<br />370
<br />2.6
<br />200
<br />-
<br />08/20/14
<br />18.90
<br />0.00
<br />-6.90
<br />2,600
<br />36
<br />16
<br />43
<br />160
<br />2.9
<br />66
<br /><0.50
<br />-
<br />10/20/14
<br />19.40
<br />0.00
<br />-7.40
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.21
<br />10/21/14
<br />-
<br />-
<br />-
<br />1,500
<br />34
<br />15
<br />12
<br />62
<br />3.6
<br />74
<br />-
<br />04/27/15
<br />18.02
<br />0.00
<br />-6.02
<br />1,400
<br />26
<br />15
<br />10
<br />23
<br /><0.50
<br /><5.0
<br />0.10
<br />10/19/15
<br />20.18
<br />0.00
<br />-8.18
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.32
<br />10/22/15
<br />-
<br />-
<br />-
<br />8,300
<br />130
<br />42
<br />300
<br />360
<br />10
<br />140
<br />-
<br />04/11/16
<br />17.96
<br />0.00
<br />-5.96
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.09
<br />04/13/16
<br />-
<br />-
<br />-
<br />4,100
<br />34
<br />11
<br />110
<br />150
<br />3.2
<br />25
<br />-
<br />12/12/16
<br />18.95
<br />0.00
<br />-6.95
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.24
<br />12/13/16
<br />-
<br />-
<br />-
<br />3,900
<br />24
<br />6.6
<br />110
<br />43
<br />2.1
<br />32
<br />-
<br />04/10/17
<br />12.07
<br />14.51
<br />0.00
<br />-2.44
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/11/17
<br />-
<br />-
<br />-
<br />1,600
<br />9.6
<br />3.1
<br />31
<br />13
<br /><0.50
<br /><5.0
<br />0.38
<br />10/24/17
<br />16.30
<br />0.00
<br />-4.23
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.47
<br />10/25/17
<br />-
<br />-
<br />-
<br />1,200
<br />27
<br />4.0
<br />20
<br />8.1
<br /><0.50
<br />120
<br />-
<br />05/07/18
<br />15.22
<br />0.00
<br />-3.15
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.19
<br />05/08/18
<br />-
<br />-
<br />-
<br />1,500
<br />17
<br />2.8
<br />53
<br />6.4
<br />4.5
<br />120
<br />-
<br />05/28/19
<br />13.36
<br />0.00
<br />-1.29
<br />960
<br />5.9
<br /><1.00
<br />12
<br /><3.00
<br />2.7
<br />92
<br />0.49
<br />11/25/19
<br />15.89
<br />0.00
<br />-3.82
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.35
<br />12/03/19
<br />-
<br />-
<br />-
<br /><500
<br />3.8
<br /><2.50
<br />3.6
<br /><7.50
<br /><2.50
<br /><50.0
<br />-
<br />04/01 /20
<br />14.91
<br />0.00
<br />-2.84
<br />1,100
<br />4.9
<br />1.2
<br />11
<br />2.7
<br />2.2
<br />84
<br />0.19
<br />11/12/20
<br />16.86
<br />0.00
<br />-4.79
<br />690
<br />4.1
<br />0.58
<br />2.2
<br />2.2
<br />1.9
<br />27
<br />0.35
<br />odor
<br />05/04/21
<br />15.91
<br />0.00
<br />-3.84
<br />960
<br />11
<br />2.8
<br />1.4
<br />2.1
<br /><0.5
<br />52
<br />0.47
<br />11/24/21
<br />16.28
<br />0.00
<br />-4.21
<br />770
<br />1.2
<br />0.83
<br />1.4
<br /><1.5
<br />2.6
<br />39
<br />0.29
<br />05/06/22
<br />15.61
<br />0.00
<br />-3.54
<br />2,000
<br />3.9
<br />2.8
<br />8.2
<br />4.2
<br />4.3
<br />29
<br />0.97
<br />11/30/22
<br />17.67
<br />0.00
<br />-5.60
<br />210
<br />16
<br />4.5
<br />1.1
<br />3.0
<br />4.4
<br />16
<br />1.36
<br />CMW-7C 02/04/08
<br />12.01
<br />18.55
<br />0.00
<br />-6.54
<br />250
<br />2,400
<br />3.0
<br />11
<br />3.0
<br />16
<br />3.0
<br />85
<br /><0.5
<br /><0.5
<br />-
<br />05/05/08
<br />19.70
<br />0.00
<br />-7.69
<br />130
<br />350
<br />6.0
<br />9.0
<br />2.0
<br />6.0
<br />6.0
<br />110
<br /><0.5
<br />-
<br />08/04/08
<br />20.58
<br />0.00
<br />-8.57
<br /><50
<br />570
<br /><0.5
<br /><0.5
<br /><0.5
<br /><0.5
<br />3.0
<br />140
<br /><0.5
<br /><0.5
<br />10/28/08
<br />21.62
<br />0.00
<br />-9.61
<br />170
<br />330
<br /><0.5
<br /><0.5
<br /><0.5
<br /><0.5
<br />3.0
<br />77
<br /><0.5
<br /><0.5
<br />01/27/09
<br />21.55
<br />0.00
<br />-9.54
<br />160
<br />450
<br /><0.5
<br /><0.5
<br /><0.5
<br /><0.5
<br />3.0
<br />91
<br /><0.5
<br /><0.5
<br />04/27/09
<br />20.12
<br />0.00
<br />-8.11
<br />120
<br />220
<br />1.0
<br />3.0
<br /><0.5
<br />3.0
<br />3.0
<br />94
<br /><0.5
<br /><0.5
<br />10/14/09
<br />21.58
<br />0.00
<br />-9.57
<br /><50
<br />640
<br /><0.5
<br /><0.5
<br /><0.5
<br /><0.5
<br />-
<br />-
<br />-
<br />-
<br />05/24/10
<br />1
<br />19.08
<br />0.00
<br />-7.07
<br />1 130
<br />140
<br /><0.5
<br /><0.5
<br /><0.5
<br /><0.5
<br />2.0
<br />150
<br /><0.5 <0.5 <0.5
<br /><0.5
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