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Table 1. Groundwater Monitoring Well Data, con't MW-2 12/26/95 18 74 955 5052 41 51 None MW-2 3/28/96 18 63 901 ----- 41 51 None MW-2 6127196 18 65 958 ----- 40 94 None MW-2 9123/96 18 60 1010 ----- 40 42 None MW-2 12/19/96 1 8 65 936 ----- 41 16 None MW-2 3/10/97 18 65 907 ----- 41 45 None MW-2 6/30/97 1845 980 ----- 40 72 None MW-3 12/26/95 1667 9 05 4978 40 73 None MW-3 3/28/96 16 63 861 ----- 41 17 None MW-3 6/27/96 16 63 922 ----- 40 56 None MW-3 9/23/96 16 50 960 ----- 40 18 None MW-3 12/19/96 16 58 893 ----- 40 85 None MW-3 3/10/97 16 58 864 ----- 41 14 None MW-3 6130197 16 58 931 ----- 40 47 None Groundwater Gradient Groundwater elevations were plotted to a known datum to prepare a groundwater contour map The groundwater flow direction was toward the north-northwest at sampling time, and a flow gradient of 0 0061 was calculated Historic groundwater flow trends typically vary from north-northeasterly to north-northwesterly Chemical Analysis and Results Priority Environmental Labs Inc tested the groundwater samples using EPA Methods 50301 8015 and 602 for Total Petroleum Hydrocarbons as Gasoline (TPHG), Benzene, Toluene, Ethylbenzene and Xylene (BTEX) and Methyl-tert-butyl-ether (MTBE) The analytical reports are attached, and the results are listed below in Table 2 (see Table 3 for historic data) Table 2 Groundwater Chemical Data Well No Date TPHG Benzene Toluene Ethylbenz Xylene MTBE MW-1 6/30/97 38,000 110 20 82 100 ND MW-2 6/30/97 ND ND ND ND ND ND MW-3 6/30/97 ND ND ND ND ND ND Blank 6130/97 ND ND ND ND ND ND ND - None detected NA - Not Analyzed ug/l - micrograms per liter Discussion Groundwater flow direction appears consistent with historically observed trends The concentrations in Well MW-1 reflect an increase of levels of TPHG and BTEX Some fluctuations in concentrations are attributed to residual contaminants in the soil strata in the immediate Page 2