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Table i } Groundwater Monitoring Data and Analytical Results Tosca(Former Unocal) Bulk Plant#0788 8203 East 11 th Street Tracy, California WeIIIDI Id Date DTVV GVYE TPH(D) T'PH(G) B. T lJ: X MT$E TOC* ...::. Ut) frill) (ppb} . . (PPb) :(hpd) �) (!� 6). . ;(h .b) b) ... U-8 08/06/92 -- -- ND ND ND ND ND ND 11/18/92 -- -- 602 ND ND ND ND ND -- 01/21/93 -- -- 1803 70 ND ND 4.4 11 44.14 05/26/93 7.92 36.22 120 ND ND ND ND ND 08/24/93 7.80 36.34 1506 ND ND ND ND ND } 43.86 11/30/93 8.22 35.64 ND ND ND ND ND ND ; 02/18/94 7.98 35.88 ND ND ND ND ND ND }- 05/12/94 7.68 36.18 ND ND ND ND ND ND 08/08/94 7.20 36.66 ND ND ND ND ND ND -- 11I08194 8.60 35.26 ND ND ND ND ND ND 02/13/95 8.29 35.57 ND ND ND ND ND ND i 10/10/95 8.46 35.40 ND ND ND ND ND ND '- 02113/96 7.82 36.04 ND ND ND ND ND ND -- 11/06/96 7.21 36.65 ND ND ND ND ND ND }- 05/06/97 6.97 36.89 ND ND ND ND ND ND 04/29/98 8.10 35.76 7610 ND ND ND ND ND ND 12/01/98 8.23 35.63 5010 ND ND ND ND ND ND 05/24/99 7.65 36.21 ND ND ND ND ND ND ND 11/08/99 8.56 35.30 13013 ND ND ND ND ND ND 1 U-9 08/06/92 -- -- ND ND ND ND ND ND 11/18/92 -- -- 390' ND ND ND ND ND - i 01/21/93 -- -- ND ND ND ND ND ND - 44.14 05/26/935 7.81 36.33 90 ND ND ND ND ND =- 08/24/93 7.94 36.20 ND ND ND ND ND ND - 43.76 11/30/93 7.97 35.79 ND ND ND ND ND ND -- 02/18/94 7.70 36.06 ND ND ND ND ND ND 05/12/94 7.29 36.47 ND ND ND ND ND ND 08/08/94 7.18 36.58 ND ND ND ND ND ND - 11/08/94 8.40 35.36 ND ND ND ND ND ND ;- 02/13/95 8.08 35.68 ND ND ND ND ND ND - 10/10/95 8.21 35.55 SAMPLED ANNUALLY -- - -- -- 02/13/96 7.56 36.20 ND ND ND ND ND ND 11/06/96 7.08 36.68 -- -- -- -- - - 05/06/97 6.04 37.72 ND ND ND ND ND ND t- 078180144 11lfl8l99