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r Table 2 (Cont.) Groundwater Elevations and Sample Analytical Results --Previous GROUNDWATER ELEVATIONS AND SAMPLE ANALYTICAL RESULTS Farmer Conrady Service Station 1002 North Yosemite Street well 4r Stockton,California Screen Collection TOC DTW GWE If T E X TPHg MTBE DO Interval Dale (feet) (feet) (feel) W910 ) ) ) MW4 9/15/94 9707 2895 6812 - 7D6s21! 9/27/9! 9707 2912 6795 65 ND<05 ND<O5 ND<1.5 NDc50 — TD--49 12/28/94(a) 97.(17 2906 6801 ND<05 ND<O5 ND<O5 NDc10 NDc50 3/8/95 9707 2678 7029 ND<05 ND<O5 ND<0S ND<i0 ND<50 . 6/30/95 9707 2361 7346 ND<05 ND<O5 ND<05 ND<2-0 ND<50 9/27/95 9706 2429 7277 ND<05 ND<O5 ND<O5 ND<05 ND<50 11/7/95 9706 2462 7244 - — 02 11/30/95 9706 2421 7285 ND<05 ND<05 ND<O5 ND<20 ND<50 2127/96 9706 2125 7581 ND<05 ND<O5 ND<O5 ND<20 ND<50 ND<50 ` 5/30/% 9706 1986 7720 ND<O5 ND<05 ND<05 ND<20 ND<50 ND<% — 8/20/96 9706 2066 7640 ND<05 ND<O5 ND<O5 ND<2.0 ND<50 ND<50 11/14/% 9706 2089 7617 ND<05 ND<05 ND<O5 ND<20 ND<50 ND<5D -- 3/21/97 9706 1576 8130 ND<05 ND<05 ND<O5 ND<20 ND<90 NDc5A 21 6/16/97 9706 1679 8027 ND<05 ND<05 ND<O5 ND<20 ND<50 ND<5 34 9/19/97 9706 is 18 7688 ND<05 ND<O5 ND<05 ND<20 ND--W 5 03 MW-5 9/15/94 9644 2848 67% — TOS--20 9/27/94 %44 2863 6781 140 ND<63 51 ND<6.3 ND<1°10 — TD=40' 12/28/94(a) 9644 2871 6773 17 20 1.3 19 420 — 3/8/95 96 N 2675 6969 40 13 130 41 3 400 6/30195 9644 2290 7354 DO 14 950 2,300 12,000 • 9/27/95 9643 2371 7272 56 20 260 92 1700 — 11/7/95 9643 2408 7235 _ 11/30/95 %43 2345 72980.7 47 07 93 ND<20 670 2/27/96 9643 2068 7575 16 07 14 ND<20 300 ND<50 5/30/96 9643 1929 7714 96 10 22 ND<20 540 ND<50 0/20/96 9643 20 04 7639 77 05 ND<0 5 ND<20 170 12 11/14/% 9643 2014 7629 49 ND<O5 NDaO.5 ND<2.0 140 ND<5A 3/21/97 9643 1515 8128 25 ND<05 10 ND<20 g0 5 19 6/16/97 9643 1613 8030 ND<0.5 ND<05 ND<05 ND<20 ND<50 NfkS 0,8 9/19/97 9643 1751 7892 17 ND<0S ND<05 ND<20 90 ND<5 04 MW-6 9/27/95 9642 2382 7160 ND<05 ND<05 NDcD5 ND<O5 NDc50 TOS-20 11/7/95 9642 2419 7223 — TD=40' 11/30/95 9642 23 57 7285 — 2/27/% 9642 2084 7558 ND<O5 ND<O5 ND<05 ND<20 ND<50 ND<50 . 5/30/96 9642 1943 7699 ND<05 ND<O5 ND<05 ND<20 ND<50 NDeS0 ` 8/20/96 9642 2014 7628 05 ND<05 NDc45 ND<20 ND<W 9 MW-6 11/14/96 9642 2025 7617 ND<05 ND<05 ND<05 ND<20 ND<50 ND<50 — TOS=20 3/21/97 9642 1524 8118 ND<05 ND<O5 ND<05 ND<20 NDe-W ND<5A 23 TD=40 6/16/97 9642 1619 8023 ND<05 ND<05 ND<0.5 NDc20 NDc5O ND<5 21 9/19/97 9642 1759 7883 ND<05 ND<05 ND<05 ND<20 NDc50 ND6 04 VW 1 11/7/95 --- 2405 -- TOB=15 _ — — 07 TD--25 VW 2 11/7/95 — 2370 — TOS=15 — — 04 TD--25 SW 1 11/7/95 — 2526 — • TOS 15' — - 0.0 TD=25 SW 2 11/7/95 — 2329 — — - - — — 04 TOS--15 TD--25 Notes, TOS Top of well screen Interval in feet below ground surface ND Na detected me"deraction limit not available TD Total depth of well 14D<5D Nor delacted in ixuicenlrations eaceading the indicated method detection or reporting limit TOC Top of caning referenced to temporary benchmark(project datum=100) — Not tested DTW Depth to water mg/% Mic per liter GWE Groundwater elevation(TOCDrfW) 8 8 P� TPHg Tutal petroleum hydrocarborm as gasul4ne by EPA Method 8015(mndthed) (a) Dale of gmundwaler gauging Gnwndwaler resampled 1/4/95 BTEX Benzene toluene ethylbenaene and total xylenes by EPA Method 8020 (b) Reporting la ruts elevated due to tugh levels of targat compounds,sample ,in al dilution MTBE Methyl tent-butyl ether by EPA Method 8020 id Date of gmundwaler gauging GrawW water resampled 7/9/97 DO Dusaolved oxygen manned with field ktatrumentatraei