为了响应Swift Creek水库的规划开发，正在制定一项综合流域管理总体规划，用于选址、规模确定、许可和资助区域（流域级）最佳管理实践（BMP）。本文介绍了建模方法、模型输入参数的开发以及现有和最终土地利用条件的建模结果。这些模型用于评估未来开发对流域和水库的影响，并评估BMP以控制污染。三个模型用于绘制流域状况的综合图。 HEC-1模型由美国陆军工程兵团开发，用于模拟流域的水文特征（水文曲线和流量），并评估开发对暴雨水量的影响。P8城市集水区模型用于模拟雨水污染物的产生和输送，并评估开发对水质的影响。Reckhow模型用于根据P8结果或Kramer模型的结果估算水库中的磷浓度，Kramer模型是由一名公民为该国流域管理委员会开发的一个表内污染物负荷模型。 还讨论了用于为建模工作准备数据的各种GIS工具。包括7个参考文献、表格、图表。

A comprehensive Watershed Management Master Plan is being developed for siting,sizing, permitting, and funding regional (watershed-level) best managementpractices (BMPs) in response to planned development in the Swift Creek Reservoirwatershed. This paper presents the modeling approach, development of model inputparameters, and results of the modeling of existing and ultimate land useconditions. The models are being used to assess the impacts of future developmenton the watershed and the reservoir and to evaluate BMPs to control pollution.Three models were used to develop a comprehensive picture of watershedconditions. The HEC-1 model, developed by the U.S. Army Corps of Engineers was used to model the hydrologic characteristics (hydrographs and flows)of the watershed and to assess the impacts of development on storm water waterquantity. The P8 Urban Catchment Model was used to simulate the generation andtransport of storm water pollutants and to assess impacts of development on waterquality. The Reckhow model was used to estimate the in-reservoir phosphorusconcentration based on either P8 results or the results of the Kramer model, aspreadsheet pollutant-loading model developed by a private citizen for theCounty's Watershed Management Committee. Various GIS tools used to prepare datafor the modeling efforts are also discussed. Includes 7 references, tables, figures.