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The update history of SWMM 5 from the original SWMM 5.0.001 to the current version SWMM 5.2.3 can be found at the EPA website. SWMM 5 was approved FEMA Model Approval Page in May 2005, [ 16 ] with a note about the versions that are approved on the FEMA Approval Page SWMM 5 Version 5.0.005 (May 2005) and up for NFIP modeling.
The SWMM (Storm Water Management Model), the HSPF (Hydrological Simulation Program – FORTRAN) and other modern American derivatives are successors to this early work. In Europe a favoured comprehensive model is the Système Hydrologique Européen (SHE), [ 11 ] [ 12 ] which has been succeeded by MIKE SHE and SHETRAN .
The United States Environmental Protection Agency (EPA) issues Effluent Guideline regulations for categories of industrial sources of water pollution under Title III of the Clean Water Act (CWA). [1] The standards are technology-based, i.e. they are based on the performance of treatment and control technologies (e.g., Best Available Technology ...
EPA has authorized 47 states to issue NPDES permits. [25] In addition to implementing the NPDES requirements, many states and local governments have enacted their own stormwater management laws and ordinances, and some have published stormwater treatment design manuals.
EPANET (Environmental Protection Agency Network Evaluation Tool) is a public domain, water distribution system modeling software package developed by the United States Environmental Protection Agency's (EPA) Water Supply and Water Resources Division.
Development continues to create an arbitrary shape culvert solver that links to a 1D piped network model such as SWMM. ANUGA is stable even in extreme flow with high Froude numbers. An example of this is the 1928 St Francis Dam Break in California that resulted in extreme flow velocities and complex waves in a tortuous valley.
An aerobic treatment system (ATS), often called an aerobic septic system, is a small scale sewage treatment system similar to a septic tank system, but which uses an aerobic process for digestion rather than just the anaerobic process used in septic systems.
HELP v4.0 – Microsoft Excel-based version developed by EPA ORD's Center for Environmental Solutions and Emergency Management, HELP 4 user manual and further documentation for HELP v3.0 [1] Commercial versions: Visual HELP – based on the HELP version 3.07, offers a Microsoft Windows GUI to view and edit soil profiles and to generate weather ...