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Table 1 <br /> SUMMARY OF GROUNDWATER LEVELS AND CHEMICAL ANALYSIS RESULTS <br /> October 8,2003 <br /> Former 76 Station 4409 <br /> Date TOC Depth to LPH Ground- Change in TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Ele,.ation Water Thickness water Elevation 8260B benzene Xylenes 8021B 9260B <br /> Elevation <br /> (feet) (feet) (feet) (feet) (feet) 4tg!1) 4'0) (µg/1) (µg/1) (µg/1) 4Lg/1) (lig/1) (µg11) <br /> MW-1 (Screen Interval in feet 300-500) <br /> 10/8/2003 1144 34 09 000 -22 65 -155 — ND<50 ND<O 50 ND<O 50 ND<O 50 13 - 46 <br /> MW-2 (Screen Interval in feet 25 0-45 0) <br /> 10/8/2003 1268 3562 000 -2294 -160 -- ND<50 ND<O 50 ND<O 50 NDN 50 ND<1 0 ND<2 0 <br /> MW-3 (Screen Interval in feet 25 0-45 0) <br /> 10/8/2003 12 02 3494 000 -2292 -160 -- ND<50 ND<O 50 NDN 50 NDN 50 10 -- 16 <br /> MWA (Screen Interval in feet 250-450) <br /> 1018t2003 1149 34 11 000 -2262 -156 - 62 NDN 50 ND<0 50 ND<O 50 1 8 31 <br /> MW-5 (Screen Interval in feet 700-800) <br /> 10/8/2003 12 17 3494 000 -2277 -161 2100 ND<2 5 ND<2 5 ND<2 5 63 - ND<10 <br /> MW-6 (Screen Interval in feet 700-800) <br /> 10/8/2003 1162 33 56 000 -2194 -066 — 3800 330 89 110 98 - ND<10 <br /> MW-7 (Screen Interval in feet 700-800) <br /> 10 8/2003 1 1 40 34 19 000 -2279 -1 58 ND<50 073 14 16 75 4 4 <br /> MW-8 (Screen Interval in feet 700-800) <br /> 10/8/2003 12 61 3555 000 -2294 — ND<50 NDN 50 NDN 50 ND<O 50 2 0 -- ND<2 0 <br /> MW-9 (Screen Interval in feet 700-800) <br /> 10!812003 1087 3546 000 -24S9 — — 520 11 2 8 2 9 7 3 — 2 7 <br /> MW-10 (Screen Interval in feet 690-790) <br /> 10/8/2003 1130 3408 000 -22 78 — 4300 ND<5 0 ND<5 0 78 22 290 <br /> MW-11 (Screen Interval in feet 770-820) <br /> 1018/2003 1240 3562 000 -2322 _ __ ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 ND<2 0 <br /> MW-12 (Screen Interval m feet 780-830) <br /> 1018!2003 1064 3320 000 -2256 - - ND<50 ND<O 50 NDN 50 NDN 50 ND<1 0 -- 2 2 <br /> MW-13 (Screen Interval in feet 780-830) <br /> 4409 Pagel of 2 <br />