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TABLE 1 -SUMMARY OF RESULTS OF GROUNDWATER MONITORING WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G B T E X MTBE DO LAB ID SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ug1L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ppm) MONITORING (Feet) (Feet) (Feet) MW-4 05101/90 675 2631 -1956 ND ND ND ND ND — — PRE MW-4 08/05/91 675 DRY — — — --- — — — — PRE MW-4 12/09/91 675 DRY — — — — — -- --- PRE MW-4 03/09/92 675 DRY — -- — --- — — — --- ANA MW-4 06/19/92 675 DRY — --- — — — _ -_ ANA MW-4 09/18/92 675 DRY -- --- — --- — — — --- ANA MW-4 12/09/92 675 DRY — --- — --- — — — --- ANA MW4 03111/93 675 DRY — --- --- -- — ._ — MW-4 06/15/93 675 2801 -2126 --- --- — — — — — — MW-4 09115/93 675 2850 -2175 -- — --- — — — — --- MW-4 12122193 675 2833 -21 58 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 — (I) -- PACE MW4 04/01194 675 2745 -2070 — --- — — — — — ._ MW4 07/27194 675 2746 -2071 190 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 {I} 23 PACE MW-4 11130!94 675 2797 -2122 — — — --- — — — MW-4 02/15/95 675 2685 -2010 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 --- 28 ATI MW-4 04/21/95 675 2477 -1802 — -- — --- — — — — MW4 07/19/95 675 2407 -1732 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<10 --- 51 ATI MW4 (e) 10/20/95 675 2450 -1775 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND-<5 0 60 ATI MW-4 10/20/95 675 2524 -1849 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<5 0 65 ATI MW-4 (e) 04/23/96 675 2113 -1438 ND<500 ND<0 5 ND<0 5 ND<0 5 ND<0 5 14 — SPL MW4 04/23/96 675 — --- ND<500 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<10 — SPL MW-4 07/12/96 675 2042 -1367 — — — — — — MW-4 10/18/96 675 1963 -1288 130 ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 53 SPL MW-4 02/26/98 675 1301 -626 ND<50 ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 44 SPL MW-4 07/07/98 675 1261 -586 ND<50 ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 37 SPL MW-4 01/19/99 675 1459 -784 ND<50 ND<1 0 ND<1 0 ND<1 0 ND<1 0 26 --- SPL MW-4 07/14/99 675 1355 -680 ND<50 ND<1 0 ND<1 0 ND<1 0 ND<1 0 83 — SPL MW-4 10/07/99 675 1508 -833 220 ND<1 0 ND<1 0 ND<1 0 ND<1 0 170 — SPL MW-4 01/20/00 675 1540 -865 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 320 --- PACE MW-4 04/11/00 675 1431 -756 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 64 — PACE MW-4 07/14/00 675 1302 -627 98 ND<0 5 ND<0 5 ND<0 5 ND<0 5 290 -- PACE MW4 10/26/00 675 1459 -784 190 20 19 07 32 1000 — PACE MW-4 01/16/01 675 1441 -766 400 ND<0 5 ND<0 5 ND<0 5 ND<0 5 510 — PACE MW4 04/12/01 675 1297 -622 400 ND<0 5 ND<0 5 ND<0 5 ND<1 5 544 --- PACE MW-4 07/23/01 675 1468 -793 440 ND<0 5 ND<0 5 ND<0 5 ND<1 5 610 — PACE MW4 12/14/01 675 1586 -911 650 ND<0 5 ND<0 5 ND<0 5 ND<1 0 612 -- PACE MW-4 01/10/02 675 1400 -725 470 ND<2 5 ND<2 5 ND<2 5 ND<5 0 383 --- PACE Blaine Tech Services,Inc,Report 020110-KF-1,BP Oil 11192 at 1403 Country Club Blvd,Stoddon,Caltfomta Page ge 5