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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 />AMW-6 04/27/09
<br />8.92
<br />18.54
<br />0.00
<br />-9.62
<br />35,000
<br />4,000
<br />310
<br />1,400
<br />2,100
<br /><100
<br /><2,000
<br /><100
<br /><100
<br /><100
<br /><60,000
<br /><100
<br />0.2
<br />07/22/09
<br />19.16
<br />0.00
<br />-10.24
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />11.9
<br />07/23/09
<br />-
<br />-
<br />-
<br />29,000
<br />4,500
<br />300
<br />1,400
<br />2,400
<br /><100
<br /><2,000
<br /><100
<br /><100
<br /><100
<br /><60,000
<br /><100
<br />-
<br />02/18/10
<br />18.79
<br />0.00
<br />-9.87
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.4
<br />02/19/10
<br />-
<br />-
<br />-
<br />31,000 N
<br />4,400
<br />320
<br />1,600
<br />2,100
<br /><100
<br /><2,000
<br /><100
<br /><100
<br /><100
<br /><60,000
<br /><100
<br />-
<br />05/24/10
<br />17.52
<br />0.00
<br />-8.60
<br />79,000
<br />3,500
<br />230
<br />1,200
<br />2,100
<br /><50
<br /><1,000
<br /><50
<br /><50
<br /><50
<br /><30,000
<br /><50
<br /><50 0.8
<br />Hydrocarbon odor
<br />10/04/10
<br />10.70
<br />18.47
<br />0.00
<br />-7.77
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />- -
<br />10/15/10
<br />-
<br />-
<br />-
<br />27,000
<br />3,300
<br />240
<br />1,400
<br />2,200
<br /><5.0
<br /><25
<br /><5.0
<br /><5.0
<br /><5.0
<br /><50
<br /><5.0
<br />-
<br />04/04/11
<br />16.01
<br />0.00
<br />-5.31
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.57
<br />B Zone
<br />04/05/11
<br />-
<br />-
<br />-
<br />20,000
<br />4,000
<br />250
<br />1,000
<br />1,000
<br /><0.50
<br />20
<br />-
<br />B Zone
<br />10/03/11
<br />11.29
<br />0.00
<br />-0.59
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.29
<br />10/04/11
<br />-
<br />-
<br />-
<br />16,000
<br />2,500
<br />190
<br />560
<br />1,300
<br /><5.0
<br /><25
<br />-
<br />04/09/12
<br />16.25
<br />0.00
<br />-5.55
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/10/12
<br />-
<br />-
<br />-
<br />9,700
<br />1,800
<br />130
<br />350
<br />520
<br /><3.0
<br />20
<br />0.67
<br />10/16/12
<br />15.41
<br />0.00
<br />-4.71
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />9.56
<br />10/17/12
<br />-
<br />-
<br />-
<br />2,900
<br />420
<br />32
<br />82
<br />100
<br /><0.90
<br />29
<br />-
<br />04/22/13
<br />15.64
<br />0.00
<br />-4.94
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />1.54
<br />04/23/13
<br />-
<br />-
<br />-
<br />11,000
<br />1,600
<br />91
<br />330
<br />280
<br /><0.90
<br />12
<br />-
<br />10/14/13
<br />17.34
<br />0.00
<br />-6.64
<br />13,000
<br />2,700
<br />140
<br />480
<br />330
<br /><2.5
<br /><25
<br />0.63
<br />04/22/14
<br />16.67
<br />0.00
<br />-5.97
<br />8,500
<br />740
<br />48
<br />240
<br />150
<br /><1.5
<br />23
<br />0.32
<br />10/20/14
<br />18.43
<br />0.00
<br />-7.73
<br />-
<br />Unable to remove lid for
<br />10/22/14 INA
<br />-
<br />-
<br />-
<br />sampling
<br />04/27/15
<br />17.98
<br />0.00
<br />-7.28
<br />0.67
<br />04/28/15
<br />-
<br />-
<br />-
<br />9,000
<br />1,800
<br />65
<br />210
<br />96
<br /><4.2
<br /><41.6
<br />-
<br />10/19/15
<br />20.00
<br />0.00
<br />-9.30
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.24
<br />10/21/15
<br />-
<br />-
<br />-
<br />6,100
<br />910
<br />41
<br />160
<br />69
<br /><0.84
<br />16
<br />-
<br />04/11/16
<br />16.55
<br />0.00
<br />-5.85
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.15
<br />04/13/16
<br />-
<br />-
<br />-
<br />18,000
<br />4,200
<br />250
<br />620
<br />310
<br /><3.1
<br /><31.2
<br />-
<br />12/12/16
<br />18.11
<br />0.00
<br />-7.41
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.76
<br />12/13/16
<br />-
<br />-
<br />-
<br />6,700
<br />1,100
<br />52
<br />130
<br />63
<br /><1.7
<br /><16.6
<br />-
<br />04/10/17
<br />10.62
<br />12.34
<br />0.00
<br />-1.73
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />04/11/17
<br />-
<br />-
<br />-
<br />14,000
<br />4,000
<br />160
<br />410
<br />180
<br /><2.5
<br />26
<br />0.14
<br />10/26/17
<br />16.39
<br />0.00
<br />-5.78
<br />8,600
<br />960
<br />44
<br />230
<br />77
<br /><1.7
<br /><33.3
<br />0.32
<br />05/09/18
<br />12.45
<br />0.00
<br />-1.84
<br />9,000
<br />1,400
<br />57
<br />190
<br />72
<br /><2.50
<br /><50.0
<br />0.31
<br />05/28/19 INA
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />Well lid stuck
<br />11/25/19
<br />13.96
<br />0.00
<br />-3.35
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />-
<br />0.25
<br />11/26/19
<br />-
<br />-
<br />-
<br />8,400
<br />820
<br />34
<br />120
<br />28
<br /><2.50
<br /><50.0
<br />-
<br />04/01/20
<br />14.01
<br />0.00
<br />-3.40
<br />11,000
<br />1,000
<br />38
<br />120
<br />34
<br /><5
<br /><50
<br />0.33
<br />Odor
<br />11/09/20
<br />15.64
<br />0.00
<br />-5.03
<br />8,000
<br />1,000
<br />36
<br />150
<br />29
<br /><5
<br />50
<br />0.73
<br />05/05/21
<br />14.77
<br />0.00
<br />-4.16
<br />7,600
<br />870
<br />31
<br />86
<br />24
<br /><5
<br /><50
<br />2.09
<br />11/23/21
<br />15.24
<br />0.00
<br />-4.63
<br />8,200
<br />1,100
<br />37
<br />140
<br />31
<br /><5
<br /><50
<br />0.21
<br />05/05/22
<br />14.31
<br />0.00
<br />-3.70
<br />9,500
<br />1,100
<br />36
<br />140
<br />33
<br /><5.00
<br /><5.000
<br />1.03
<br />11/30/22
<br />16.50
<br />0.00
<br />-5.89
<br />12,000
<br />1,200
<br />41
<br />170
<br />38
<br /><5.00
<br /><5.000
<br />0.85
<br />AMW-7 10/28/93
<br />8.88
<br />38.11
<br />0.00
<br />-29.23
<br />42,000
<br />3,100
<br />9,300
<br />970
<br />6,000
<br />-
<br />-
<br />-
<br />03/23/94
<br />36.63
<br />0.00
<br />-27.75
<br />44,000
<br />3,000
<br />8,600
<br />870
<br />5,600
<br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 17 of 116 Stantec
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