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TABLE 1A
<br />CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA
<br />Former Mobil Service Station 99CAS
<br />75 E. Alpine Avenue
<br />Stockton, California
<br />(Page 6 of 7)
<br />Well
<br />Sampling
<br />TOC
<br />DTW
<br />GW Elev.
<br />NAPL
<br />TPHd
<br />TPH9
<br />0&G MTBE
<br />B
<br />T
<br />E
<br />X PCBS SvOCs
<br />117
<br />Date
<br />(feel)
<br />(feet)
<br />(feet)
<br />(feet)
<br />(Ng1L)
<br />(pg/L)
<br />(pg/L) (pg/L)
<br />(pg/L)
<br />(lag/L)
<br />(pg/L)
<br />(pg1L) (pglL) (ug/L)
<br />EX1
<br />10/05/10
<br />16.51
<br />38.12
<br />-21.61
<br />No
<br />---
<br />---
<br />---
<br />---
<br />-.-
<br />-.- --- ---
<br />EX1
<br />10/06/10
<br />16.51
<br />---
<br />---
<br />1,400d
<br />240,000
<br /><1,000
<br />26,000
<br />66,000
<br />3,600
<br />20,000
<br />EX1
<br />02/09/11
<br />16.51
<br />36.70
<br />-20.19
<br />No
<br />910d,m
<br />130,000d
<br />--- <1,000
<br />19,000
<br />56,000
<br />3,000
<br />17,000
<br />EX1
<br />05/18/11
<br />16.51
<br />33.87
<br />-17.36
<br />No
<br />---
<br />---
<br />---
<br />.-.
<br />...
<br />---
<br />... ... ---
<br />EX1
<br />05/19/11
<br />16.51
<br />---
<br />---
<br />---
<br />1,200d
<br />160,000
<br /><1,000
<br />20,000
<br />68,000
<br />4,100
<br />24,000 ... ---
<br />EX2
<br />07/14/09
<br />16.83
<br />41.20
<br />-24.37
<br />No
<br />740
<br />170,000
<br />--- <1,200
<br />47,000
<br />69,000
<br />3,400
<br />19,000 ---
<br />EX2
<br />10/27/09
<br />16.83
<br />41.53
<br />-24.70
<br />No
<br />2,700d
<br />70,000
<br />•-- <1,200
<br />22,000
<br />29,000
<br />1,300
<br />7,500 ---
<br />EX2
<br />01/25/10
<br />16.83
<br />39.69
<br />-22.86
<br />No
<br />710d
<br />120,000d
<br />--- <1,000
<br />35,000
<br />44,000
<br />1,400
<br />9,500 --- ---
<br />EX2
<br />04/07/10
<br />16.83
<br />37.81
<br />-20.98
<br />No
<br />820
<br />170,000
<br /><500
<br />50,000
<br />73,000
<br />3,800
<br />24,000
<br />EX2
<br />08/09/10
<br />16.83
<br />37.70
<br />-20.87
<br />No
<br />---
<br />-
<br />---
<br />---
<br />---
<br />---
<br />--- --- ---
<br />EX2
<br />08/10/10
<br />16.83
<br />---
<br />---
<br />-
<br />890d
<br />150,000d
<br /><1,000
<br />45,000
<br />71,000
<br />2,900
<br />20,000 --- ---
<br />EX2
<br />10/05/10
<br />16.83
<br />38.45
<br />-21.62
<br />No
<br />---
<br />---
<br />--- ---
<br />---
<br />---
<br />---
<br />_- --- ---
<br />EX2
<br />10/06/10
<br />16.83
<br />---
<br />---
<br />---
<br />1,500d
<br />280,000
<br />.-- <1,000
<br />46,000
<br />67,000
<br />3,300
<br />20,000 --- ---
<br />EX2
<br />02/09/11
<br />16.83
<br />37.08
<br />-20.25
<br />No
<br />670d,m
<br />150,000d
<br />--- <1,000
<br />43,000
<br />73,000
<br />3,600
<br />21,000 --- ---
<br />EX2
<br />05/18/11
<br />16.83
<br />34.13
<br />-17.30
<br />No
<br />---
<br />---
<br />---
<br />---
<br />...
<br />---
<br />... ... ...
<br />EX2
<br />05/19/11
<br />16.83
<br />---
<br />---
<br />---
<br />950d
<br />160,000
<br /><1,000
<br />35,000
<br />64,000
<br />2,700
<br />23,000 --- --.
<br />
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