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2.2 CURRENT QUARTER'S FINDINGS 2.2.1 ZONE A-GROUNDWATER The groundwater contour map is presented on Figure 4. The monitoring wells are screened at depths ranging from 30 to 50 feet below ground surface (ft bgs). The depth to groundwater ranged from 32.49 (MW-6) to 37.03 ft bgs (MW-15). Groundwater elevations ranged from 85.98 feet above mean sea level (ft MSL) in well MW-12 to 88.04 ft MSL in well MW-9. The groundwater flow direction generally ranged from northwest to southwest at calculated hydraulic gradients ranging from 0.007 to 0.05. Wells MW-1 and MW-15 are also constructed in Zone A, however, they were not used for contouring because their locations are several hundred feet from the other site wells. The groundwater elevations for wells MW-1 and MW-15 are presented on Figure 3.' The TPHc,TPHd,and benzene detections are summarized on Figures 3 and 4. 2.2.2 ZONE B-GROUNDWATER The groundwater contour map is presented on Figure 5. The monitoring wells Fare screened at depths ranging from 105 to 125 ft bgs. The depth to groundwater ranged from 30.09 (MW-14B) to 35.15 fbg '(MW-13B). Groundwater elevations ranged-from 85.49 ft MSL in well MW-13B to 87.84 ft MSL in well MW-5B. The groundwater flow direction was generally toward the northwest at a calculated hydraulic gradient of 0.01. The TPHc,TPHd,and benzene detections are summarized on Figures 3 and 5. 2.2.3 ZONE C-GROUNDWATER The groundwater contour map is presented on Figure 6. The monitoring wells are screened at depths ranging from 160 to 177 ft bgs. The depth to groundwater ranged from 52.60 (MW-14C) to 55.12 fbg (MW-5C). Groundwater elevations ranged from 64.83 ft MSL in well MW-14C to 66.40 ft MSL in well MW-13C. The groundwater flow direction was generally toward the east at a calculated hydraulic gradient of 0.004 The TPHc,TPHd,and benzene detections are summarized on Figures 3 and 6. 060223(16) 2 CONESTOGA-ROVERS&ASSOCIATES