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MPDS-UNG187 11 <br /> February 24 1997 <br /> Page 4 of 4 <br /> • Table 2 <br /> Summary of Laboratory Analyses <br /> Water <br /> Ground Water <br /> ,Elevation. TP.as 'Ethyl- <br /> Date <br /> Ethylgate well (feet) Gasoline bene Toluene Bewmie y#ezte5 <br /> 1118195 U-1 -2990 2,100 38 59 42 45 <br /> U-2 -2962 150 17 068 032 079 <br /> U-3 -2978 28,000 2,400 1,400 1,900 4,900 <br /> U4 -3001 440 49 12 066 230 <br /> U-5 -2991 <50 <0 5 0 53 <0 5 <0 5 <br /> U-6 -28 87 <50 <0 5 058 <0 5 <0 5 <br /> U-7 -2926 12,000 1,600 44 1,500 2,400 <br /> U-8 -3000 170 <0 5 051 076 1 2 <br /> 819195 U-1 -3020 1,600 89 67 37 42 <br /> U-2 -29 83 63 98 <0 5 1 3 26 <br /> U-3 -2990 38,000 4,800 1,900 2,100 9,600 <br /> 519195 U-1 -31 66 3,600 170 23 120 140 <br /> U-2 -31 01 91 8 3 066 1 5 3 3 <br />• U-3 -3157 53,000 7,600 3,900 2,600 11,000 <br /> 2117195 U-1 -34 37 3,700 190 19 73 210 <br /> U-2 -33 62 120 49 <0 5 059 1 8 <br /> U-3 -3432 47,000 9,100 2,100 1,600 5,300 <br /> 11/17/94 U-1 -36 31 5,000 540 12 250 840 <br /> U-2 -36 10 360 88 <1 0 3 8 45 <br /> U-3 -36 23 42,000 9,600 1,800 2000 4,600 <br /> 8119194 U-1 -36 23 5,000 960 17 380 1,200 <br /> U-2 -3622 870 150 12 33 87 <br /> U-3 -35 87 51,000 9,700 1,300 2,100 5,600 <br /> * Sequoia Analytical Laboratory reported that the hydrocarbons detected appeared to be a gasoline <br /> and non-gasoline mixture <br /> f Sequoia Analytical Laboratory has identified the presence of MTBE at a level above or equal <br /> to the taste and odor threshold of 40 µg/L in the sample collected from this well <br /> <# Non-detectable at or above stated detection limit <br /> Results are in micrograms per liter (lig/l_), unless otherwise indicated <br /> 40Note Prior to August 1, 1995, the total purgeable petroleum hydrocarbon (TPH as gasoline) <br /> quantification range used by Sequoia Analytical Laboratory was C4 -C12 Since <br /> August 1, 1995, the quantification range used by Sequoia Analytical Laboratory <br /> is C6 -C12 <br />