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TABLE 4 CUMULATIVE ANALYTICAL RESULTS - GROUNDWATER Stockton Metropolitan Airport, Former Fuel Farm OXYGENATES SAMPLE DATE 7PH• ETHYL. LOCATION SAMPLED JET FUEL TPH-G BENZENE TOLUENEBENZENE XYLENES MTBE DIPE ETBE TAME TBA 1 ,2•DCA EDB SB-3 1 01/03/96 460 750 2.9 1 .5 1 .2 5.0 12 NA NA NA NA NA NA $B-4 01/04/96 8,500 18,000 710 95 1 ,100 2,400 ND<500 NA NA NA NA NA NA CPT-1-GW 05/29/0] ND<238 131 ND<O5 1 ND<0.5 3.1 ND<1 ND<0.5 ND<0.5 ND<0.5 IND<0.5 NO<5 Np<0.5 NO<0.5 MW-1 11/26/02 840 7,700 1 ,300 460 490 670 ND<5 ND<5 ND<5 ND<5 ND<50 NA NA 03/07/03 120 71300 1 ,600 38 170 180 NOc N0<5 ND<5 7<5 ND<50 NA NA 06/06/03 ND<50 3,900 700 11 110 58 ND<5 ND<5 ND<5 NDc ND<W NA NA 5103 140 6,600 2,100 7.7 130 29 ND<5 NDc ND<5 NO<5 ND<50 NA NA 09/1 12/19/03 ND<50 53400 21300 ND<O 140 51 ND<5 ND<5 N0<5 N0<5 ND<50 NA NA 03/25/04 59` 9,900 21600 44 110 50 ND<5 ND<5 ND<5 ND< ND<50 NA NA 06/18/04 92 6,400 13900 ND<20 69 ND<400 ND<50 ND<50 ND<50 ND<50 ND<500 NA NA 06/23/04 170 4,300" 11700 77<20 78 NDWO ND<5 ND<5 ND<5 ND<5 ND<50 NA NA 12/30/04 87` 10,000 33000 N0<50 230 ND<100 ND<5 ND<5 ND<5 NO<5 ND<50 NA NA 03/23/05 NS NS NS NS NS NS NS NS NS NS NS NA NA 07/14/05 471` 12,800 41480 NDG50 328 124 ND<5 ND<5 71)<5 NDc ND<50 NA NA 09/21/05 ND<250 11 ,100 2,620 ND<100 261 ND<00 ND<5 ND<5 NO<5 ND<5 ND<50 NA NA 12 '30/05 279 10,500 3,010 ND<1 DO 268 NO<00 NO<10 ND<10 ND<10 ND<10 ND<100 152 NO<10 03/15/06 ND<250 21 ,200 7,850 NDv`0 856 464 ND<10 ND<10 ND<10 ND<10 ND<100 468 N0<10 06120106 462 13,500 6,350 ND<100 734 436 ND<50 ND<50 ND<50 ND<50 ND<500 NO<50 ND<50 09/78106 608 128 39.2 ND<0.5 5.0 3.4 ND<50 ND<50 ND<50 ND<50 NO<500 ND<50 ND<50 12/12/06 ND<50 22,100 6,690 ND<100 834 498 ND<50 ND<50 ND<50 ND<50 ND<500 417 ND<50 03/19/07 474 20,300 7,130 N0200 1 ,070 638 ND<50 NDc 0 ND<50 NDc ND<500 ND<50 N0<50 06/27/07 636 1 %900 5,640 198 773 807 N0<50 ND<50 ND< O ND<50 N0<500 88.0 ND<50 09126/07 408' 33,000 10,500 147 11040 1 ,051 NO<50 ND<50 NO<50 ND<50 ND<500 ND<50ND<50 12/13/07 ND<250 21,600 4,830 ND<200 576 456 ND<50 ND<50 ND<50 ND<50 ND<500 ND<50 ND<50 03/10/08 826 21 ,100 4,790 152 571 489 ND<50 ND<56 ND<50 ND450 ND<500 NDcO ND<50 06/05/08 310` 18,600 49540 196 515 537 N0<50 ND<50 ND<50 NO<50 ND<$00 ND<50 ND<50 MW2 1126/02 340 420 ND<0,5 ND<0.5 ND<0.5 NDO ND<0.5 ND<0.5 ND<0.5 ND<0.5 18 NA NA 03/07/03 ND<50 220 N0<0,5 ND<0.5 ND<0.5 ND<1 N70<0.5 ND<0.5 N0<0.5 ND<0.5 ND<5 NA NA 06/06/03 ND<50 240 11 1 .8 ND<0.5 NO 09/15/03 ND<50 110 5.5 1 .0 0.5 ND<1 ND<6.5 ND<.5 ND<0.5ND<0.5 ND<5 NA NA 12/19/03 ND<50 110 7.3 ND<0.5 1 .3 1 .2 ND<0.5 ND<0,5 ND<0.5 ND<0.5 ND<5 NA NA 03/25/04 N0<50 110 4.0 NO<0.5 ND<0.5 ND<7 ND<0.5 NO<0.5 ND<0.5 ND<0.5 ND<5 NA NA 06/18/04 ND<50 220 ND<0.5 NO<0:5 ND<0.5 ND<1 NO<0.5 ND<0.5 NO<D.5 ND<0.5 99 NA NA 08Y3/04 ND<50 180 Np<6.5 ND<0.5 ND<0.5 ND<1 Np<0.5 ND<0.5 ND<0.5 Np<0.5 9.9 NA NA 12/30/04 ND<50 330 ND<0.5 N0<0.5 ND<0.5 ND<1 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<5 NA NA 03/23/05 ND<250 73 ND<0.5 Np<0.5 NOc6.5 NO<1 NO<0.5 ND<0.5 NDW.S ND<0.5 ND<5 NA NA 06/29105 387` 175NDc0.5 NO<0.5 NO<t ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<5 NA NA 09/21105 ND<250 4" NO<0.5 NO<O.5 ND<0,5 NO 24 12/30/05 ND<250 101" ND<OS ND<0.5 NO<0.5 ND 03/15/06 ND<250 171" N0<0,5 ND<0.5 ND<0.5 ND<1 ND< .5 N0<0.5 ND<0.5 ND<0.5 ND<5 ND<0,5 N0<0.5 06/20/06 ND<50 137" ND<0.5 ND<0.5 ND<0.5 ND N0<0.5 NO<O.5 ND<0.5 ND<5 ND<0,5 ND<0.5 09118106 ND<50 148 ND<0.5 ND<0.5 ND<0.5 ND<1 N0<0.5 ND<0.5 ND<0.5 ND<5 ND<0.5 NO<0.5 12112/06 NOc250 58.5"` ND<p,5 ND<0.5 ND<0.5 ND<1 ND<0.5 NO<0.5 NO<0.5 NO<5 ND<0.5 ND<0.5 03/19/07 N0<250 ND<W ND<0.5 ND<0.5 ND<0.5 ND<1 NO<0.5 ND<0.5 ND<0.5 ND<5 ND<0.5 ND<0.5 06/27/07 ND<50 114"` ND<05 ND<0.5 ND<0.5 ND<1 ND<0.5 ND<0.5 ND<0.5 ND<5 ND<0,5 ND<0.5 09128107 NDQ50 89.5 ND<0.5 N0<OS ND<0.5 ND<1 ND<0.5 ND<0.5 ND<0.5 ND<5 ND<0.5 ND<0.5 12/13/07 ND<250 133" ND<0.5 ND<0,5 ND<0.5 1 .0 ND<0.5 ND<0.5 N0<0.5 ND<5 ND<0Z ND<0.5 03/10/08 ND<250 ND<50 ND<0,5 NO<0.5 ND<0:5 N0<7 ND<0.5 ND<0.5 ND<0.5 ND<5 ND<0.5N0<0.5 NO<50 ND<0.5 Np<0.5 ND<0.5 N0< ND<0.5 ND<0.5 ND<0.5 ND<5 ND<0.5 ND<0.5 3