Operations software for data monitoring and analytical services for water treatment plants using membrane technology.

Offers GPS-X software, a modeling and simulation software for wastewater treatment plants.

Describes and distributes a large collection of commercial, government-issue, and free water resources modeling programs and utilities, including US Army Corps of Engineers HEC programs.

Specialize in hydraulics and hydrology software and books including water distribution management, storm sewer and sanitary sewer modeling.

National Institute of Hydrology of India makes software available for flood estimation and management of reservoir operations.

Interactive online calculation of a wide range of equations for open channels, pressure pipes, and runoff. Some free calculations, some require paid registration.

Purchase, support, and training for the industry standard HEC-5 hydrologic software, which simulates the operation of a reservoir system for flood control, hydropower, and water supply.

Modular software for industrial pretreatment tracking.

Catalog of software for solving problems in hydrology, hydraulics, surface water or groundwater modeling, regional watershed hydrology, water distribution, stormwater, wastewater, and terrain modeling.

Offers the arid lands hydrology model (AHYMO) program for computing hydrographs and sediment yield in applications such as analysis of storm sewers.