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l I Table 1 Groundwater Monitoring Data and Analytical Results - , Former Chevron Service Station#9-8632 575 Grant Line Road Tracy,California - I WELL TDI TOC' GWE DTW TPH-D TPH-G 9 T E x MTBE TOG DATE (ft.) (MSO (A) (Ppb) (ppb) (pp 6) (Ppb) (Ppb) (Ppb) (Ppb) (Ppb) s - SUMP 01/07/97 -- -- 844 -- i 260- 43 ,4 1 2 7 30 <2 5 <1 100- 06/05/97 -- - 911 <0 5 1 -- 1 6 <0 5 <0 5 <0 5 k" <2 5 <1 100 _ < � D 5 <2 5 <1 000 958 061" 09/02/97 -- - -- 1� F<05 <05 <05 <0 5 <2 5 13 0002 823 11/19/97 -- -- - " t ` 02/12/98 -- 1191 - -- 21 20 - 13 26 64 12 000 <0 5 -- , -- <0 5 <0 5 <0 5 - <2 5 -<5 000 8 81 - s 06/10/98 - -- 08/10/98 -- - 9 36 -- - <0 5 <0 5 <0 5 _ <05 _ N <2 5 <5,000 11124/98 - -- 931 -- �4 -- <0 5 <0 5 <0 5 <0 5 <2 5 <1,000 8 89 <50 0 911 <0 5 <0 5 <0 5 <2 0 <1,000 -- r 06/01/99 - -- 701 --' 65 3 2 13 3 77 - 0 897 3 61 942 <5 000 <0 5 <0 5. <2 5 <5 000 08/30/99 -- - 9 21 -- <50 <0 5 _<D 5 _ r 11 11/24/99 -- -- 905 -- <50 <0 5 <0 5 <0 5 <0 5 { <2 5 - <5,000 a - <50 <0 50 <0 50 <0 50 <0 50 02/03/00 NP -- -- 8 9 <2 51<2 0' <5 000, 06/26/00 NP -- -- 925 -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <5,000 <50 0 57 t <0 50 <0 50 <0 50 <2 5 0811 I/Ofl NP -- -- 9 50 -- -- 08/22/00 NP -- -- 940 -- -- -- - - -- -- <5,000 10/31/00 NP - -- u 9 17 -- <50 0 <0 500 0 958 <0 500 <1 50 <2 50 <5,000 02/22/01 NP -- 890 - <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <5 000 05/25/01 NP -- 9 18 -- i - <50 <0 50 <0-50 <0 50 <0 50 <2 5 <5,000 07!31101 NP -- -- 939 <50 <0 50 - � <D 50 <D 50 <0 50 <2 5 <5 000 10/30/01 NP -- -- 9 11 - - I <50 <0 50 <0 50 <0 50 <1 5 <2 5 <280 16 01/29/02 NP -- -- 871 -- <50 - 0 52 <0 50 <0 50 <1 5 ,<2 5 y 1,55016 04/30/02 NP -- -- 9 15 -- - <50 <0 50 <0 50 <0 50 <1 5 <2 5- - 1,26016 _ 07/30/0219 - 9 36 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5,15016 ' - r 10/31/0219 NP -- -- 920 -- <50 <0 5 <0 5 <0 5 <0 5 <2 <32016 01130/03Z' -- -- 1598 NOT SAMPLED-DUE TO INSUFFICIENT WATER - -- -- 9-8632 8685 -9-86328685 5 4[131/05 r ,