Study Site Rain falling onto the central portion of Long Island has a higher probability of entering the deep-flow recharge system, and recharging the deeper aquifers.
Rain falling onto the shoreline regions recharges the shallow aquifer system only.
The Town maintains and monitors groundwater monitoring wells in the vicinity of the landfill. The wells in the monitoring network were often constructed in multi-well clusters, with the screens of each well set at different depths below the water table. Four well clusters include wells screened in both the Upper Glacial aquifer and the Magothy aquifer. Another well cluster contains wells screened in the Upper Glacial aquifer and a piezometer screened in the confining layer between the aquifers. The M-N Stiff diagrams can test this hypothesis.