In conducting this investigation, historic reports and other available data from the local area were acquired and assessed; including precipitation, evapotranspiration, geology, and land cover.  A water balance was created using the Thornthwaite methodology in order to evaluate the water available for infiltration per unit area of delineated watershed.  Two scenarios were assessed, the first limited to watershed area within the site area, and the second evaluated watershed area where infiltrated water may be accessible from on site pumping.  Values for precipitation available for infiltration, based on regulatory guidance, were also considered.

Analysis of the water balance results revealed that the calculation is extremely sensitive to the parameters pertaining to the availability of water for deep infiltration, indicating that site specific investigation is needed to add confidence to these parameters.  Using the water balance results, and simplified aquifer geometry, an average perennial yield and first-order approximation of water level change over time were generated.