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0 ! 0 'Z <br /> TABLE 1 -SUMMARY OF RESULTS OF GROUNDWATER MONITORING <br /> WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G 8 T E X MTBE DO LAB <br /> ID SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ug/1) (uglt) (ug/1) (ug/1) (ug11) (ug/1) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) <br /> i <br /> MW-4 05/01/90 675 2631 -1956 ND ND ND ND ND — — PRE <br /> MW-4 08/05/91 675 DRY -- — -- --- — -- — PRE <br /> MW-4 12/09/91 675 DRY — — --- — — — PRE <br /> MW-4 03/09192 675 DRY - --- --- - ANA <br /> MW-4 06/19/92 675 DRY - — --- -- - — — — ANA <br /> MW-4 09/18/92 675 DRY — -- — -- -- -- — ANA <br /> MW-4 12/09/92 675 DRY - — — __ __ — _ ANA <br /> MW-4 03/11/93 675 DRY -- — — — -- — — PACE <br /> MW-4 06/15/93 675 2801 -21 26 — -- -- — — PACE <br /> MW-4 09/15/93 675 2850 -2175 — — --- -- --- --- --- PACE <br /> MW-4 12/22/93 675 2833 -2158 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- --- PACE <br /> MW-4 04/01/94 675 2745 -2070 -- <br /> MW-4 07/27/94 675 2746 -2071 190 ND<0 5 ND<O 5 ND<O 5 ND<O 5 --- 23 PACE <br /> MW-4 11/30/94 675 2797 -21 22 — <br /> MW-4 02/15/95 675 2685 -20 10 N0<50 ND<0 50 ND<O 50 ND<0 50 ND<1 0 --- 28 ATI <br /> MW-4 04/21/95 675 2477 -1802 <br /> MW-4 07/19/95 675 2407 -1732 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 — 51 ATI <br /> MW-4 (e) 10/20/95 675 2450 -1775 ND<50 ND<O 50 ND<O 50 ND<0 50 ND<1 0 ND<5 0 60 ATI <br /> MW-4 10/20/95 675 2524 -1849 ND<50 ND<0 50 ND<O 50 ND<O 50 ND<1 0 ND<5 0 65 ATI <br /> MW-4 (e) 04/23/96 675 2113 -14 38 ND<500 ND<O 5 ND<0 5 ND<O 5 ND<0 5 14 --- SPL <br /> MW-4 04/23/96 675 -- — ND<500 ND<0 5 ND<O 5 ND<0 5 ND<O 5 ND<10 — SPL <br /> MW-4 07/12196 675 2042 -1367 _ __ _— _ <br /> MW-4 10118/96 675 1963 -1288 130 ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 53 SPL <br /> 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 <br /> MW-4 07/07198 675 1261 -586 ND<50 ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 37 SPL <br /> MW-4 01119199 675 1459 -784 ND<50 ND<1 0 ND<1 0 ND<1 0 ND<1 0 26 -- SPL <br /> MW-4 07/14/99 675 1355 -680 ND<50 ND<1 0 ND<1 0 ND<1 0 ND<1 0 83 -- SPL <br /> MW-4 10/07/99 675 1508 -833 220 ND<1 0 ND<1 0 ND<1 0 ND<1 0 170 — SPL <br /> MW-4 01120/00 675 1540 -865 ND<50 ND<0 5 ND<O 5 ND<0 5 ND<O 5 320 --- PACE <br /> MW4 04/11/00 675 1431 -756 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<O 5 64 — PACE <br /> MW-4 07/14/00 675 1302 -627 98 ND<O 5 ND<O 5 ND<0 5 ND<O 5 290 — PACE <br /> MW-4 10/26/00 675 1459 -784 190 20 1 9 07 32 1000 -- PACE <br /> Blaine Tech Services,Inc Report 001026-S-1 BP Oil 11192 at 1403 Country Ciub Blvd , Stockton, California Page 4 <br />