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TABLE 4
<br /> Ground Water Remediation Data
<br /> CHAPIN BROTHERS INVESTMENTS, INC.
<br /> 1766 Monte Diablo Avenue, Stockton, California
<br /> TPH-g Benzene Toluene Ethyl Total MTBE TBA DIPE ETBE TAME 1,2-DC EDB
<br /> Date Total Net benzene Xylenes
<br /> Gallons Gallons EPA Method EPA Method 8260B
<br /> 8015M
<br /> 04/24/02 15,264 15,264 15,000 1,300 160 78 2,800 <50 - - - - -
<br /> 07/15/02 553,558 553,558 4,700 290 23 240 470 <50 - - - - -
<br /> 08/22/02 867,749 867,749 2,600 32 6.4 3.3 120 <50 - - - -
<br /> 11/25/02 1,333,838 1,333,838 2,700 95 8.1 100 180 <25 - - -
<br /> 12/10/02 1,592,885 1,592,885 3,600 46 77 5.8 290 <2.5 - - - - -
<br /> 01/09/03 1,690,903 1,690,903 3,500 120 7.6 6.8 340 <2.5 - - - -
<br /> 03/25/04 2,891,360 2,891,360 4,300 3.8 6.2 110 51 <0.5 - - - - -
<br /> 04/28/04 2,972,028 2,972,028 1,100 <0.5 <0.5 <0.5 21 <0.5 - - - -
<br /> 10/28/04 3,449,597 3,449,597 1,900 5 <0.5 40 65 <0.5 - - - - -
<br /> 09/05/07 3,450,097 500 - - - - - - - - - -
<br /> 10/01/07 3,485,018 35,421 - - - - - - - - -
<br /> 11/07/08 3,602,875 153,278 - - - - - - - - - - -
<br /> 12/12/07 3,748,397 298,800 -
<br /> 12/31/07 3,834,892 385,295 - - - - - - -
<br /> 01/08/08 3,891,877 442,280 3,300 64 3.8 220 144.6 <0.5 <5.0 5.1 <0.5 34 5.3 <0.5
<br /> 02/20/08 4,098,772 649,175 3,600 110 <0.5 <0.5 30.1 11 <5.0 34 <0.5 25 -- --
<br /> 03/19/08 4,269,239 819,642 6,600 140 2.1 <0.5 28 <0,5 <5.0 22 <0.5 47 8.0 6.3
<br /> 04/17/08 4,427,537 977,940 3,500 34 <0.5 18 1.5 <0.5 <5.0 25 <0.5 13 2.6 <O.5
<br /> 05/13/08 4,546,192 1,096,595 32,000 98 <0.5 7.3 99.5 <0.5 <5.0 60 <0.5 22 <0.5 <0.5
<br /> 06/09/08 4,643,677 1,194,080 400 <0.5 <0.5 <0.5 <0.6 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5
<br /> 07/10/08 4,776,989 1,327,392 NA NA NA NA NA NA NA NA NA NA NA NA
<br /> 08/12/08 4,881,606 1,432,009 NA NA NA NA NA NA NA NA NA NA NA NA
<br /> 09/26/08 5,056,139 1,606,542 NA NA NA NA NA NA NA NA NA NA NA NA
<br /> 10/22/08 5,135,308 1,685,711 NA NA NA NA NA NA NA NA NA NA NA NA
<br /> 11/25/08 5,249,122 1,799,525 NA NA NA NA NA NA NA NA NA NA NA NA
<br /> 12/18/08 5,282,962 1,833,365 NA NA NA NA NA NA NA NA NA NA NA NA
<br /> Advanced GeoEmironmeWal,luc.
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