Methods for the evaluation of the effectiveness of the Wellhead Protection Program (WHPP) in the North West Wellfield, Dade County, Florida are presented. This is done through application of two computer programs developed by the Environmental Protection Agency: WHPA (Version 2.2), a Modular Semi-Analytical Model for the Delineation of Wellhead Protection Areas, and WHAEM, the Wellhead Analytical Element Model. In addition the Calculated Fixed Radius Method for capture zone delineation is also used. Wellhead delineation results from the afore mentioned three methods are obtained for both present and future water demands, based on population predictions done for the years 2010, 2015, and 2025. Conclusions are drawn regarding the impact of current land uses and zoning criteria; and factors and barriers that affect or hinder the effectiveness of current protection activities are pointed out.
