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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-4C 10/18/12
<br />10.89
<br />-
<br />-
<br />-
<br />120
<br /><0.50
<br /><0.50
<br /><0.50
<br /><0.50
<br />2.2
<br />910
<br />-
<br />04/22/13
<br />16.00
<br />0.00
<br />-5.11
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.40
<br />04/24/13
<br />-
<br />-
<br />-
<br />120
<br /><0.50
<br /><0.50
<br /><0.50
<br /><0.50
<br />0.97
<br />1,500
<br />-
<br />10/14/13
<br />NSP
<br />17.52
<br />0.00
<br />-6.63
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/22/14
<br />16.90
<br />0.00
<br />-6.01
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />1.89
<br />04/23/14
<br />-
<br />-
<br />-
<br />120
<br /><0.50
<br /><0.50
<br /><0.50
<br /><0.50
<br />0.92
<br />1,500
<br />-
<br />10/20/14
<br />NSP
<br />18.61
<br />0.00
<br />-7.72
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/27/15
<br />17.18
<br />0.00
<br />-6.29
<br /><50.0
<br /><0.50
<br /><0.50
<br /><0.50
<br /><1.0
<br />0.73
<br />97
<br />0.12
<br />10/19/15
<br />NSP
<br />19.20
<br />0.00
<br />-8.31
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/11/16
<br />16.87
<br />0.00
<br />-5.98
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />1.22
<br />04/13/16
<br />-
<br />-
<br />-
<br /><50.0
<br /><0.50
<br /><0.50
<br /><0.50
<br /><1.5
<br />0.61
<br />630
<br />-
<br />12/12/16
<br />NSP
<br />18.60
<br />0.00
<br />-7.71
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/10/17
<br />10.80
<br />13.53
<br />0.00
<br />-2.73
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/11/17
<br />-
<br />-
<br />-
<br />51
<br /><0.50
<br /><0.50
<br /><0.50
<br /><1.5
<br /><0.50
<br />790
<br />0.19
<br />10/24/17
<br />NSP
<br />15.11
<br />0.00
<br />-4.31
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />05/07/18
<br />14.30
<br />0.00
<br />-3.50
<br />117 BL
<br /><0.500
<br /><0.500
<br /><0.500
<br /><1.50
<br /><0.500
<br />860
<br />0.40
<br />05/28/19
<br />12.51
<br />0.00
<br />-1.71
<br /><100
<br /><1.00
<br /><1.00
<br /><1.00
<br /><3.00
<br /><1.00
<br />480
<br />0.68
<br />11/25/19
<br />NSP
<br />14.87
<br />0.00
<br />-4.07
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/01/20
<br />14.02
<br />0.00
<br />-3.22
<br /><100
<br /><0.5
<br /><0.5
<br /><0.5
<br /><1.5
<br /><0.5
<br />350
<br />0.37
<br />11/09/20
<br />NSP
<br />15.93
<br />0.00
<br />-5.13
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />05/04/21
<br />14.82
<br />0.00
<br />-4.02
<br /><100
<br /><0.5
<br /><0.5
<br /><0.5
<br /><1.5
<br /><0.5
<br />130
<br />0.72
<br />11/22/21
<br />NS
<br />15.40
<br />0.00
<br />-4.60
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />05/05/22
<br />14.59
<br />0.00
<br />-3.79
<br /><100
<br /><0.500
<br /><0.500
<br /><0.500
<br /><1.50
<br /><0.500
<br />120
<br />0.49
<br />11/23/22
<br />NS
<br />10.80
<br />16.76
<br />0.00
<br />-5.96
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />CMW-5A 02/04/08
<br />10.85
<br />18.20
<br />0.00
<br />-7.35
<br />52,000
<br />29,000
<br />5,500
<br />520
<br />1,100
<br />5,100
<br /><1
<br />24
<br /><1
<br /><1
<br />05/05/08
<br />18.01
<br />0.00
<br />-7.16
<br />28,000
<br />16,000
<br />4,500
<br />750
<br />1,100
<br />5,400
<br /><3
<br />16
<br />11
<br />-
<br />08/04/08
<br />18.82
<br />0.00
<br />-7.97
<br />4,300
<br />16,000
<br />5,500
<br />700
<br />1,200
<br />5,200
<br /><3
<br />43
<br /><3
<br /><3
<br />10/28/08
<br />19.78
<br />0.00
<br />-8.93
<br />46,000
<br />20,000
<br />5,900
<br />810
<br />1,300
<br />5,700
<br /><10
<br /><40
<br /><10
<br /><10
<br />01/27/09
<br />19.87
<br />0.00
<br />-9.02
<br />43,000
<br />21,000
<br />5,900
<br />500
<br />1,100
<br />4,800
<br /><5
<br />29
<br /><5
<br /><5
<br />04/27/09
<br />18.62
<br />0.00
<br />-7.77
<br />42,000
<br />18,000
<br />4,500
<br />430
<br />890
<br />5,100
<br /><5
<br />37
<br />9.0
<br />5.0
<br />10/14/09
<br />19.84
<br />0.00
<br />-8.99
<br />43,000
<br />28,000
<br />5,800
<br />580
<br />1,000
<br />4,000
<br />-
<br />-
<br />-
<br />-
<br />05/24/10
<br />17.48
<br />0.00
<br />-6.63
<br />48,000
<br />18,000
<br />5,900
<br />1,200
<br />1,300
<br />5,300
<br /><5
<br />46
<br /><5 <5
<br />6.0
<br /><5
<br />10/04/10
<br />10.95
<br />18.39
<br />0.00
<br />-7.44
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />- -
<br />-
<br />-
<br />10/14/10
<br />-
<br />-
<br />-
<br />33,000
<br /><4,000
<br /><100
<br />4,700
<br />550
<br />1,100
<br />4,700
<br /><5.0
<br />32
<br /><5.0 <5.0 <5.0 <50 <500
<br /><5.0
<br />04/04/11
<br />16.00
<br />0.00
<br />-5.05
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />- - - - -
<br />-
<br />0.83
<br />A Zone
<br />04/06/11
<br />-
<br />-
<br />-
<br />31,000
<br />2,600
<br />3,200
<br />1,200
<br />6,300
<br /><10
<br /><50
<br />-
<br />A Zone
<br />10/03/11
<br />16.45
<br />0.00
<br />-5.50
<br />32,000
<br />4,200
<br />1,800
<br />1,300
<br />6,000
<br /><10
<br /><50
<br />0.54
<br />04/09/12
<br />16.55
<br />0.00
<br />-5.60
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/10/12
<br />-
<br />-
<br />-
<br />30,000
<br />4,100
<br />160
<br />940
<br />2,900
<br /><10
<br /><50
<br />0.70
<br />10/16/12
<br />17.15
<br />0.00
<br />-6.20
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.39
<br />10/18/12
<br />-
<br />-
<br />-
<br />34,000
<br />4,400
<br />270
<br />1,200
<br />4,200
<br /><10
<br /><50
<br />-
<br />04/22/13
<br />15.78
<br />0.00
<br />-4.83
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.54
<br />04/24/13
<br />-
<br />-
<br />-
<br />30,000
<br />2,700
<br />540
<br />830
<br />3,900
<br /><5.0
<br /><25
<br />-
<br />10/14/13
<br />17.18
<br />0.00
<br />-6.23
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.57
<br />10/15/13
<br />-
<br />-
<br />-
<br />18,000
<br />1,400
<br />110
<br />410
<br />2,700
<br /><5.0
<br />37
<br />-
<br />04/22/14
<br />1
<br />16.70
<br />0.00
<br />-5.75
<br />1 -
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />1.61
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