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t f� i • I Table 1 CURRENT GROUNDWATER MONITORING DATA AND ANALYTICAL RESULTS Third Quarter 2005 Former 76 Station 4409 4 Well No Monitoring TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE 1 2-DCA EDB T-Lead TAME 8260B TBA 8260B DIPE ETBE Ethanol D-Lead Depthto LPH Ground- TQC Depth of Comments Date (reported 8260B benzene Xylenes 8021B 8260B 8260B 82606 82608 6010B Watt r Thickness water Elevation Well as GRO) Elevation (Pg/l) A 11 A /l II ll A 11 A /l (lig/1 A 11 11 /I II (feet) (feet) (feet msl) (feet msl) (feet) Third Quarter 2005 Sampling Event I MW-1 07/12/05 1900 -- ND<O 50 ND<O 50 ND<0 50 ND<1 0 -- 5000 ND<50 ND<50 — ND<50 ND<500 ND<50 ND<50 ND<500 — 31 31 0 -19 87 1144 4874 MW-2 07/12/05 <50 -- ND<O 50 ND<O 50 ND<O 50 ND<1 0 53 ND<O 50 ND<O 50 -- NO<O 50 ND<5 0 ND<O 50 ND<O 50 ND<50 — 34 81 0 -2213 1268 4471 MW-3 07/12/05 70 -- ND<O 50 ND<O 50 ND<O 50 ND<1 0 — 100 0 96 ND<O 50 -- ND<O 50 69 ND<O 50 ND<O 50 ND<50 — 32 17 0 -2015 12 02 4482 MW-4 07/12/05 270 — ND<O 50 ND<O 50 ND<O 50 ND<1 0 — 460 63 ND<2 0 -- ND<2 0 ND<20 ND<2 0 ND<2 0 ND<200 -- 31 48 0 -1999 11 49 4479 MW-5 07/12/05 5400 — <2 5 2 5 210 640 — 280 ND<2 5 ND<2 5 — ND<2 5 ND<25 ND<2 5 ND<2 5 ND<250 -- 32 12 0 -1995 1217 7810 MW-6 07/12105 810 — 68 15 12 9 2 - 3 0 ND<O 50 ND<O 50 — ND<0 50 ND<5 0 ND<O 50 ND<O 50 ND<50 -- 31 69 0 -1998 11 62 7751 MW-7 07/12/05 <50 — ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 0 78 40 ND<O 50 - ND<0 50 ND<5 0 ND<O 50 ND<O 50 ND<50 -- 31 40 0 -2000 1140 7810 MW-8 07/12105 170 -- 2 1 ND<O 50 41 ND<1 0 -- 21 49 ND<O 50 ND<0 50 ND<5 0 ND<O 50 ND<O 50 ND<50 — 32 76 0 -2015 1261 7610 MW-9 07/12/05 2400 — 3 8 3 9 150 120 — 60 45 ND<O 50 -- ND<O 50 51 ND<O 50 ND<O 50 ND<50 — 30 8 0 -19 95 1087 6917 MW-10 07/12/05 2200 ND<O 50 ND<O 50 27 24 — 2600 ND<O 50 ND<O 50 -- 3 7 200 ND<O 50 ND<O 50 ND<50 — 31 0 -1986 11 30 7800 MW-11 07/12/05 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<1 0 — ND<O 50 6 5 ND<O 50 — ND<O 50 ND<5 0 ND<O 50 ND<O 50 ND<50 330 32 88 0 -2048 1240 81 98 MW-12 07/12/05 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<1 0 — 0 57 19 ND<O 50 — ND<O 50 ND<5 0 ND<O 50 ND<O 50 ND<50 <5 0 30 55 0 -1991 1064 8340 MW-13 07/12/05 61 -- ND<O 50 ND<O 50 ND<0 50 ND<1 0 _ ND<O 50 14 ND<O 50 N ND<O 50 ND<5 0 ND<O 50 ND<O 50 ND<50 12 3049 0 -1989 1060 8065 MW-14 07/12/05 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 32 18 ND<O 50 ND<O 50 ND<5 0 ND<O 50 ND<O 50 ND<50 73 32�8 0 -2027 1211 8188 MW-15 07/12/05 ND<50 - ND<O 50 ND<O 50 ND<O 50 16 — ND<O 50 ND<O 50 ND<O 50 -- ND<O 50 ND<5 0 ND<O 50 ND<O 50 ND<50 -- 31 210 0 -1969 11 61 120 56 Additional Sampling Event [ MW-15 08/19/05 — — — — - -- — — — — - — — — — — 32,-9 -- -2078 11 61 — MW-16 08/19/05 ND<50 - ND<O 50 ND<O 50 ND<0 50 1 0 — ND<O 50 0 50 ND<O 50 — ND<O 50 ND<5 0 ND<O 50 ND<O 50 ND<50 33,-'2 -- -20 94 1238 — MW-17 08/19/05 13000 — 700 1300 370 1900 -- ND<10 ND<10 ND<10 — ND<10 ND<100 NIX-10 ND<10 ND<1000 — 3245 — -2094 11 51 -- r Explanation DCA Dichloroethane r I DIPJ= Di-isopropyl ether EDB Ethylene dr-bromide GRO Gasoline range organics ETBE Ethyl tertiary butyl ether LPH liquid phase hydrocarbons msl mean sea level MTBE Methyl tertiary butyl ether ND not detected } TAME Tertiary amyl methyl ether f TBA Tertiary butyl alcohol TOC Top of casing TPH-G Total petroleum hydrocarbons as gasoline 1 TPPH Total purgeable petroleum hydrocarbons Irg/L micrograms per liter < Less than laboratory method reporting limit not applicable or not analyzed 11ConocoPhdlipsSRetail Sites1440910ssrs12005t200513014409 GWMSRPT 3gO5 XLS 1 Of 1 �'