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TABLE 1-SUMMARY OF RESULTS OF GROUNDWATER SAMPLING <br /> BP OIL COMPANY SERVICE STATION NO.11192 <br /> 1403 COUNTRY CLUB BOULEVARD,STOCKTON,CALIFORNIA <br /> ALISTO PROJECT NO.10-037 <br /> i <br /> WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G B T E X MTBE DO LAB <br /> ID SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ugA) (ugA) (ug 1) (u9A) (ugA) (ugA) (ppm) <br /> MONITORING (Feet) (Feet) (Feet) <br /> i <br /> MW-5 08/05/91 6.15 30.72 -24.57 ND NO ND NO ND --_ - PRE <br /> MW-5 08/15191 6.15 - -- <br /> MW-5 12/09/91 6.15 31.10 -24.95 NO NO ND ND ND - PRE <br /> MW-5 03/09/92 6.15 30.47 -24.32 NO 6.2 ND 0.5 NO -- --- PRE <br /> MW-5 06/19/92 6.15 29.99 -23.84 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- - ANA <br /> MW-5 09/18/92 6.15 31.92 -25.77 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- ANA <br /> QC-1 (d) 09/18/92 --- -- -- ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 - --- ANA <br /> MW-5 12/09/92 6.15 32.14 -25.99 ND<50 ND<0.5 ND<0.5 NNOZ ND<0.5 --- - ANA <br /> MW-5 03/11/93 6.15 29.48 -23.33 ND<50 ND<0.5 ND<0.5 N13<0.5 ND<0.5 - - PACE <br /> QC-1 (d) 03/11/93 --- --- - ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 -- -- PACE <br /> MW-5 06/15/93 6.15 27.45 -21.30 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 - -- PACE <br /> MW-5 09/15/93 6.15 27.97 -21.82 ND<50 ND<0.5 N13<0.5 ND<0.5 ND<0.5 - -- PACE <br /> MW-5 12/22/93 6.15 27.79 -21.64 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 PACE <br /> MW-5 04/01/94 6.15 26.91 -20.76 - <br /> MW-5 07/27/94 6.15 26.96 -20.81 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 - 2.7 PACE <br /> MW-5 11/30/94 6.15 27.41 -21.26 - <br /> MW-5 02/15/95 6.15 26.26 -20.11 ND<50 NO<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.1 ATI <br /> MW-5 04/21/95 6.15 24.23 -18.08 - <br /> MW-5 07/19/95 6.15 23.46 -17.31 ND<50 ND<0.50 N13<0.50 ND<0.50 ND<1.0 - 5.6 ATI <br /> MW-5 10/20/95 6.15 23.94 -17.79 -- -- - - - - _ <br /> MW-5 04/23/96 6.15 20.60 -14.45 ND<500 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<10 - SPI. <br /> MW-5 07/12/96 6.15 21.18 -15.03 --- -- -- - - --- <br /> MW-5 10/18/96 6.15 20.35 -14.20 ND<50 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 4.7 SPL <br /> MW-5 02/26/98 6.15 12.50 -6.35 ND<50 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 4.4 SPL <br /> MW-5 07/07/98 6.15 12.10 -5.95 ND<50 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 3.9 SPL <br /> 08-Oct-98 PAGE 4 <br />