Our study examines the impact of land-use on stormwater runoff in the Kayaderosseras watershed using the Long-Term Hydrologic Impact Assessment (L-THIA) model. We also examine local management goals aimed at fulfilling federal and state stormwater policy and assessed implementation success based on town annual reports. We interviewed local officials and site inspectors regarding the challenges of implementing local stormwater management policies, and in particular, sediment and erosion control at construction sites.