• ANNIE v. 4.1 - Interactive hydrologic analyses and data management.
• BRANCH v. 4.3 - Branch-network dynamic flow model.
• BSDMS v. 2.1 - Bridge scour data management system.
• CAP v. 97-08c - Culvert analysis program.
• CGAP v. 3.5 - Channel geometry analysis program.
• DR3M v. II - Distributed routing rainfall-runoff model.
• FEQ - Full equations model.
• GCLAS v. 1.05e - Graphical constituent loading analysis system.
• GENSCN v. 1.0 - Generation and analysis of model simulation scenarios.
• GLSNET v. 4.0 - Regional hydrologic regression and network analysis using generalized least squares.
• HSPEXP v. 2.4 - Expert system for calibration of hydrologic simulation program - fortran (HSPF).
• HSPF v. 11 - Hydrologic simulation program - fortran.
• HYSEP v. 2.2 - Hydrograph separation program.
• IOWDM v. 4.1 - Input and output for a watershed data management (WDM) file.
• MEASERR v. 2.5 - Determination of error in individual discharge measurements.
• MODEIN v. 1.4 - Computation of total sediment discharge by the modified Einstein procedure.
• NCALC v. 2.6 - Manning's n value calculation program.
• NFF v. 3.2 - National Flood Frequency program.
• PEAKFQ v. 5.0 - Flood-frequency analysis based on Bulletin 17B.
• PRMS v. 2.1 - Precipitation-runoff modeling system.
• SAC v. 97-01 - Slope-Area Computation Program.
• SEDDISCH v. 1.2 - Computation of fluvial sediment discharge.
• SEDSIZE v. 1.9 - Particle-size statistics of fluvial sediments.
• SPARROW v. 2.8 - Surface-water statistics.
• SWSTAT v. 4.1 - Surface-Water Statistics.

• SITES v. 2005 as of 14 Jan 2006 (99.2) - Rainfall-runoff routing program.
• TR55 (2.1) - Urban hydrology for small watersheds.

OSM - Office of Surface Mining Reclamation and Enforcement

• HC-GRAM v. 4.00 - Display water quality data.
• STORM - Rainfall runoff model.
• TAAP v. 3.3 - Theis aquifer analysis program.