HSPF is a process-based watershed model for quantifying runoff and addressing water quality impairments associated with combined point and nonpoint sources. HSPF simulates nonpoint source runoff and pollutant loadings for a watershed and performs flow and water quality routing in stream reaches. HSPF can be used to estimate nonpoint source loads from various land uses as well as fate and transport processes in streams and
lakes. HSPF contains hundreds of process algorithms developed from theory, laboratory experiments, and empirical relations from instrumented watersheds. Its modular design facilitates easy addition and/or replacement of individual modules and allows HSPF to be easily adapted for special applications designed by the user.
Description: HSPF.pdf Website: https://www.epa.gov/ceam/hydrological-simulation-program-fortran-hspf User Manual: HSPF User Manual