Water scarcity is a growing global issue, especially for delta regions which are susceptible to salt water intrusion. These locations are also known to attract residential, municipal, and industrial development which places a larger burden on the water supply. The preservation of freshwater resources is therefore important for both residential and municipal existence as well as industrial functions. In order to preserve freshwater resources, a clear understanding of supply and demand is needed. However, present evaluations are either too focused for regional relevance or too broad for improvement recommendations. To address this, we will develop a dynamic model which will; i) depict real-time freshwater availability and demand; ii) attempt to match this supply and demand, and; iii) test the applicability of possible solutions. The Urban Harvest Approach (UHA) will be used as an example to guide the matching of supply and demand. Additionally, a dynamic model will be used to capture the multi-levels present in delta regions as well as the variety of stakeholders. The model's effectiveness will be tested through two case studies.