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30-140-01 <br /> Table 1 <br /> Summery of Results of Ground Vater Monitoring and Sampling <br /> Former Mobil Station 04-NP4 <br /> 2375 Tracy Boulevard, Tracy, California <br /> Concentrations in parte per billion (ppb) <br /> rassxsaa=aaaaaaaaasesaRsarsaasaaasaa=asaaaaasaeeaaaa¢_�aaaa��aa�_,aassaa�azaasaazaeseaaacasaae�eeaaw===_____ewes=sacsecens <br /> WELL DATE OF CASING DEPTH GROUND FREE TPH-G B T E X LAB <br /> ID SAMPLING/ ELEVATION TO WATER PRODUCT <br /> MONITORING (ft-msl) WATER (ft) ELEVATION THICKNESS <br /> =�7saaaastasaaasaasa:azaazaaaaaaaazsaasazaaaaaaaaaaasaaaaaaaaszz=eaaaasaaaaaaaaaasaa:aaasaaaa���ceesaeeeececs=ssesscaaaa=cc <br /> MW-7 02/09/87 --- --- 0.00 --- 6300 420 92 --- 1200 SAL <br /> 14W-7 09/21/87 --- --- 0 00 --- ND<50 ND-c0.5 ND<O 5 --- ND<0.5 SAL <br /> MV-7 10/20/87 --- --- 0.00 --- 65 ND<0.5 ND<0.5 ... 0.07 SAL <br /> ml-7 11/20/87 --- --- 0 00 --- ND<50 ND<0 5 ND<0.5 --- ND-c0 5 SAL <br /> MW-7 03/13/88 26.50 6.75 19 75 --- --- --- --- --- --- NA <br /> MW-7 033/23/88 26.50 6.96 19 54 --- 57 5 9 ND<0.5 --- 1 SAL <br /> MW-7 06/07/58 26.50 6 75 19.75 --- --- --- --- --- --- NA <br /> MY-T 10/18/88 26.50 7.10 19.40 --- ND<50 ND<0.5 ND4 5 ND<O 5 ND<0.5 SAL <br /> Mill-7 02/15/90 26 50 5.80 20.70 0.00 3400 9.4 7.3 70 170 SAL <br /> MW-7 04/26/90 26.50 6 63 19 87 0.00 --- --- --- --- --- NA <br /> MW-7 07/12/90 26 50 6.66 19.84 0.00 ND<50 ND<0.3 ND<0.3 ND<0.3 ND<O 3 SAL <br /> MW-7 08/27/90 26.50 6 86 19 64 0.00 --- --- --- --- --- NA <br /> MW-7 11/02/90 26 50 7.03 19 47 0 00 --- --- --- --- --- NA <br /> MW-7 11/05/90 26.50 7.04 19 46 0 00 ND<50 ND<O 3 ND<O 3 ND<O 3 ND<0.3 SAL <br /> MW-7 02/25/91 26.50 6 30 20 20 0 00 ND<50 ND<O 3 ND<0 3 ND<O 3 ND<0.3 SAL <br /> MW-7 06/27/91 26.50 7 14 19.36 0.00 ND<50 ND<O 5 ND<O 5 ND<O 5 ND4.5 CAL <br /> MW-7 09/25/91 26.50 8.50 18.00 0 00 ND<30 ND<0.30 ND<O 30 ND<O 30 ND<0.30 SEQ <br /> RW-7 12/10/91 26.50 6.98 19.52 0 00 ND<30 ND<0.30 ND<O 30 ND<O 30 ND<0.30 SEQ <br /> MW-8 09/21/87 --- --- --- --- 2200 32 3 --- 480 SAL <br /> MW-8 10/20/87 --- --- --- --- 3800 20 5 --- 210 SAL <br /> MW-8 11/20/87 --- --- --- --- 140 ND<0.5 ND<0.5 ... 16 SAL <br /> MW-8 03/13/88 25 66 6.08 19.58 --- --- --- --- --. --- NA <br /> MW-8 03/23/88 25 66 6.00 19.66 --- 15000 280 210 --- 3000 SAL <br /> MW-8 06/07/88 25.66 6 20 19 46 ... --- --- --- --- --- NA <br /> MY-8 10/18/88 25.66 6 53 19 13 --- 3400 28 ND<0.5 ND<0.5 630 SAL <br /> MW-8 02/15/90 25.66 6.55 19 11 0.00 NO<50 ND<0.3 ND<0.3 ND4.3 ND<0.3 SAL <br /> MY-8 04/26/90 25.66 5.93 19 73 0.00 --- --- --- --- --- NA <br /> MW-8 07/12/90 25.66 5.98 19 68 0 00 1100 27 13 360 1000 SAL <br /> MW-8 08/27/90 25 66 6.27 19.39 0.00 --- --- --- --- --- NA <br /> MW-8 11/02/90 25 66 6.35 19.31 0 00 --- --- --- --- --- NA <br /> MY-8 11/05/90 25 66 6.38 19.28 0 00 2200 23 7 130 340 SAL <br /> MW-8 02/25/91 25.66 5.53 20.13 0.00 8100 20 21 150 240 SAL <br /> MW-8 06/27/91 25 66 6.38 19.28 0 00 3100 7.3 0<0.5 140 330 CAL <br /> MW-8 09/25/91 25.66 6.81 18.85 0 00 6300 13 4 1 190 250 SEQ <br /> MW-8 12/10/91 25.66 6.25 19.41 0 00 3600 7.5 2.4 90 120 SEQ <br /> 13-Apr-92 Page 4 of 6 <br />