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102 <br /> Historical Groundwater Monitoring and Analytical Data <br /> 7 Eleven Store#19976 <br /> 1399 North Main Street <br /> Manteca CA <br /> WeIIIDI Ethyl- MTBE 1,2- Eth- Meth- Dissolved <br /> Elevation Date Benzene Toluene Benzene Xylene TPH-G 8020 MtBE TBA RIPE EtBE TAME DCA EDB ano! anol Notes Oxygen DTW SPT WTE <br /> TOC (POL) IL) (tiglLl (RA) { ) (N IL) (1fg1L) I (Ng1L) I (NgIL) (}tglL) { IL p !L} (p !L) (mglL) (mglL) (mglL) (feet) (feet) (feet) <br /> Water Grab Samples <br /> GP 1 w 04/29/98 3,000 1,400 520 2,500 19,000 430 380 <500 <25 <25 <25 -- -- -- - -- — -- - <br /> GP 2 w 04/29/98 21 036 24 25 1,600 16 <10 <100 <5 <5 <5 -- -- -- - - - - - <br /> GP-3 w 04/29/98 5,800 11,000 5,500 28,000 290,000 4,200 3,700 <10,000 <500 <500 <500 - -- -- -- — <br /> Mw s@w 05/11/99 200 140 110 520 1,500 120 75 <40 <10 <10 <10 -- -- - -- - -- - - <br /> Monitoring Well Samples <br /> MW-1 <br /> 3199 09/16/98 281 <0 3 421 245 1,550 -- 738 <20 <5 <5 <5 - -- -- — 1 2 1474 000 1725 <br /> 12/30/98 904 317 282 147 2,860 -- 3830 <20 <5 <5 <5 — - — - 06 1417 000 1782 <br /> 02/18199 75 <2 5 170 320 4,400 330 230 <50 <12 <12 <12 — — -- 03 1426 000 1773 <br /> 06/04/99 335 143 611 1,020 11,000 — 1,240 <100 <25 <25 <25 - — - -- 02 1527 000 1672 <br /> 09/14/99 114 29 683 282 98 772 104 329 <5 <5 <5 -- -- - -- 1733 000 1466 <br /> 11/04/99 44 202 152 951 530 126 88 33 <5 <5 <5 -- -- -- b 1 8 1760 000 1439 <br /> 01/24/00 148 693 569 168 2,020 335 347 <20 <5 <5 <5 - -- -- — 09 1770 000 1429 <br /> 04/06/00 630 11 0 310 100 1,104 -- 140 <100 <4 <4 <4 - — -- - 44 1654 000 1545 <br /> 07/21/00 22 <0 5 17 28 <100 — 90 <100 <4 <4 <4 <1 — <15 <5 28 1800 000 1399 <br /> 10/12/00 230 <12 630 1,200 7,200 -- 1,100 860 <50 <50 <50 <25 — <5 <5 06 1815 000 1384 <br /> 01/16/01 <0 5 052 093 <1 <100 -- 610 <500 <20 <20 <20 -- -- -- -- c 04 1800 000 1399 <br /> 04/02/01 330 10 320 820 5,400 -- 2,700 <2,500 <100 <100 <100 -- -- — — 35 1885 000 1314 <br /> 06/26/01 37 43 31 70 830 — 280 <250 <10 <10 <10 -- -- - - 21 2076 000 11 23 <br /> 11/28/01 91 <2 5 83 230 2,100 -- 1,300 <200 <50 1 <50 1 <50 111 - 07 121 121 000 11087 <br /> f 17-Elevenl7-11 Stores1199761Tables119976 Current GroundwaterHistonoal Water Page 1 of 12 <br />