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• Table 1. Monitoring Wells Groundwater Data <br /> Well No. Date Well Depth to Casing Water Floating <br /> Sampled Depth (ft) Water (ft) Elev. ft# Elev. ft. Product <br /> MW-1 3/27/96 117.90 9566 ----- N/A None <br /> Groundwater Gradient <br /> Since only one well exists on-site, groundwater elevation contours and flow gradient <br /> cannot be plotted nor calculated. Regional groundwater flow directions are <br /> typically westerly. <br /> Chemical Analysis and Results <br /> Priority Environmental Labs Inc. tested the groundwater samples using EPA Methods <br /> 5030/ 8015 and 602 for Total Petroleum Hydrocarbons as Gasoline (TPHG), Benzene, <br /> Toluene, Ethylbenzene and Xylene (BTEX). The analytical results of the groundwater <br /> samples are listed below in Table 1. <br /> Table 2. Groundwater Chemical Data <br /> Well No. Date TPHG Benzene Toluene Ethylbenzene Xylene <br /> ------------ all ------ ug/l --------------------- <br /> MWA 3/27/96 ND ND ND ND ND <br /> ND- None detected ug/1 - micrograms per liter. <br /> Discussion <br /> TPHG and BTEX concentrations in well MW-1 continue to show that contaminants are <br /> not detected. <br /> Monitoring Schedule <br /> The groundwater well monitoring for this site is scheduled to continue on a semi- <br /> annual basis. <br /> 40 <br /> Waterloo School Project No. 4130 Page 2 <br />