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<br />Table 4
<br />i
<br />Historical Groundwater Sample TPH-G and BTEX Analytical Results
<br />The Earthgrains Company
<br />Stockton, California
<br />Well Date
<br />Concentration (ug/I)
<br />i TPH-G Benzene Toluene Ethylbenzene Total Xylenes
<br />CPT -2@44'
<br />05/18/1999
<br />ND (50)
<br />ND (0.5)
<br />ND (0.5)
<br />ND (0.5)
<br />ND (0.5)i�
<br />CPT -2@79'
<br />05/18/1999
<br />100
<br />0.66
<br />ND(0.5)
<br />0.51
<br />1.3
<br />f.
<br />CPT -3@44'
<br />05/18/1999
<br />ND (50)
<br />ND (0.5)
<br />ND (0.5)
<br />ND (0.5)
<br />ND (0.5)
<br />CPT -3@76'
<br />05/18/1999
<br />'100
<br />ND (0.5)
<br />ND (0.5)
<br />ND (0.5)
<br />2.3
<br />SP -1
<br />08/18/1999
<br />20,000
<br />3,300
<br />430
<br />890
<br />4,200
<br />11/08/1999
<br />18,000
<br />2,800
<br />360
<br />780
<br />4,100
<br />"
<br />03/13/2000
<br />20,000
<br />1,400
<br />260
<br />560
<br />2,390
<br />07/02/2000
<br />17,000
<br />1,900
<br />260
<br />800
<br />3,600
<br />10/19/2000
<br />26,000
<br />2,000
<br />220
<br />960
<br />4,000
<br />01/18/2001
<br />23,000
<br />1,900
<br />230
<br />940
<br />4,500
<br />04/19/2001
<br />16,000
<br />1,500
<br />200
<br />690
<br />3,700
<br />07/19/2001
<br />23,000
<br />2,000
<br />250
<br />820
<br />5,000
<br />10/24/2001
<br />26,000
<br />2,100
<br />200
<br />1000
<br />q
<br />4,000 �
<br />SP -2
<br />11/08/1999
<br />4,000
<br />24
<br />11
<br />15
<br />17
<br />'*
<br />03/13/2000
<br />ND (50)
<br />39
<br />ND (0.5)
<br />13
<br />72
<br />07/02/2000
<br />3900
<br />25
<br />48
<br />19
<br />53
<br />10/19/2000
<br />6100
<br />33
<br />46
<br />ND(5.0)
<br />2100 p
<br />01/18/2001
<br />3300
<br />ND(0.5)
<br />8.5
<br />11
<br />18
<br />04/20/2001
<br />8200
<br />35
<br />ND(10)
<br />17
<br />37
<br />07/19/2001
<br />6700
<br />11
<br />19
<br />16
<br />29
<br />10/24/2001
<br />5600
<br />68
<br />11
<br />18
<br />40
<br />SP -5
<br />08/18/1999
<br />410
<br />13
<br />18
<br />22
<br />83
<br />PZ -1
<br />10/27/1994
<br />21,000
<br />4,200
<br />2,500
<br />1,300
<br />4,800
<br />(see note)
<br />11/15/1994
<br />12,000
<br />1,800
<br />1,400
<br />350
<br />3,100
<br />08/18/1999
<br />21,000
<br />3,700
<br />2,800
<br />820
<br />3,500
<br />11/08/1999
<br />1,800
<br />190
<br />38
<br />87
<br />71
<br />"
<br />03/13/2000
<br />1,400
<br />190
<br />84
<br />44
<br />170
<br />07/02/2000
<br />1,400
<br />230
<br />69
<br />120
<br />140 0
<br />10/19/2000
<br />35,000
<br />4,600
<br />5,200
<br />1600
<br />6,100
<br />01/18/2001
<br />4,700
<br />620
<br />570
<br />190
<br />890
<br />04/20/2001
<br />6,700
<br />650
<br />750
<br />410
<br />850
<br />07/18/2001
<br />23,000
<br />3,700
<br />3,200
<br />1300
<br />5,300 :;
<br />10/23/2001
<br />33,000
<br />5,100
<br />4,900
<br />1700
<br />7,100
<br />env/62400132/121382eg/stockton/histlab
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