Technical Bulletin No. 0743: A Review of the Nonpoint Source Watershed Model HSPF and Its Utility to the Forest Products Industry

This report describes the capabilities and utility of the Hydrological Simulation Program - Fortran (HSPF) as a tool to evaluate forest management impacts on water quality in small or large watersheds. HSPF evolved from other EPA models-ARM (Agricultural Runoff Model) and NPS (Nonpoint Source Model). HSPF was designed for use on digital computers to simulate hydrologic and water quality processes in natural and manmade systems.