Science Inventory

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SWMM is a dynamic rainfall-runoff simulation model used for single event or long-term (continuous) simulation of runoff quantity and quality from primarily urban areas. This document describes the additional modeling features that have been added into SWMM’s hydraulic model since...

SWMM is a dynamic rainfall-runoff simulation model used for single event or long-term (continuous) simulation of runoff quantity and quality from primarily urban areas. This document describes the additional modeling features that have been added into SWMM’s hydraulic model since...

The United States Environmental Protection Agency’s (EPA) Water Modeling Workgroup (WMW) provides support for core surface water quality modeling tools used in Clean Water Act programs. The WMW identified a set of 18 separate surface water modeling applications that are currently...

The Watershed Management Optimization Support Tool (WMOST) is an EPA application that allows users to find the most cost-effective solutions to meet water quality and quantity goals through integrated water management, considering solutions in stormwater management (green and gra...

SWMM is the workhouse hydrology and hydraulics program for stormwater and wastewater management. USEPA refactored SWMM 4 (FORTRAN) into SWMM 5 in C which was released in 2005.&nbsp; Green infrastructure was added into SWMM 5.1 in 2010.&nbsp; USEPA continuously develops SWMM with ...

The presentation is for a university junior level civil engineering class and includes an overview of stormwater modeling including the key features associated with a Stormwater Management Model (SWMM). It also includes an example modeling case study of an in pipe stormwater stor...

The team developing SWMM is growing to encompass multiple organizations and individuals both inside and outside the Agency. Software development techniques and the development team itself are evolving. It is therefore necessary for SWMM's software quality assurance processes to e...

Testing helps assure software quality by executing programs and uncovering bugs. Scientific software developers often find it challenging to carry out systematic and automated testing due to reasons such as inherent model uncertainties and complex floating-point computations. Ext...

We developed a Function-as-a-Service (FaaS) framework to transform end users’ questions into automatic tests for scientific software. Our case study of applying the FaaS framework to the U.S. EPA’s Storm Water Management Model (SWMM) demonstrated the value of detecting real-world...

Scientific software can used for decades and is constantly evolving. The results from updated scientific software must be compared to results from earlier versions to determine their scientific veracity. Numerical accuracy and compounding errors present challenges for testing s...

This presentation will be on EPA&rsquo;s Storm Water Management Model (SWMM)&nbsp;which&nbsp;is used throughout the world for planning, analysis, and design related to stormwater runoff, combined and sanitary sewers, and other drainage systems in urban areas. There are many appli...

SWMM is the workhouse program for stormwater and wastewater management. USEPA refactored SWMM 4 (FORTRAN) into SWMM 5 in C which was released in 2005. Green infrastructure was added into SWMM 5.1 in 2010. USEPA continuously develops SWMM with others in a Community Development e...

SWMM is the workhouse program for stormwater and wastewater management. In 2005, USEPA&rsquo;s Lew Rossman refactored SWMM 4 (FORTRAN) into SWMM 5 in C. Green infrastructure was added into SWMM 5.1 in 2010. Dr. Rossman continues to develop SWMM, even after his retirement from E...

The Stormwater Plugin is a set of web services that facilitates the integration of urban planning tools with EPA&rsquo;s Storm Water Management Model (SWMM). SWMM is a hydrologic model that can be used to simulate continuous or short-term runoff, primarily in urban areas. The p...

This presentation will cover a portion of green infrastructure during the past ten years at the USEPA and our future plans. USEPA has conducted water quantity and quality studies on permeable pavement and rain gardens at its in Edison, New Jersey, as well as investigations in Ca...

Watershed-scale nonpoint source (NPS) pollution models have become important tools to understand, evaluate, and predict the negative impacts of NPS pollution on water quality. Today, there are many NPS models available for users. However, different types of models possess differe...

This presentation goes over my career as a Chemical Engineer and Environmental Scientist. It covers formation evaluation, reservoir engineering and enhanced oil recovery while I worked for an oil company. Then I covered in Superfund site characterization, remedial investigation...

Stormwater infrastructure designers rely on the SWMM model to simulate stormwater and wastewater infrastructure performance. Since its inception, improvements and extensions have been tested to verify the accuracy of the model. his presentation is and introduction to the mecha...

US EPA SWMM is an international de facto standard for modeling the dynamic response of stormwater systems. The SWMM project is adopting Open Source development methodologies and software industry best practices. This presentation describes how the development workflow was automat...

Optimal management of wet weather flows is an integral component of many urban systems, posing a multi-billion-dollar, multi-decade infrastructure upgrade investment. Municipalities rely heavily on software such as the EPA’s Storm Water Management Model (SWMM) to simulate stormwa...

Water infrastructure simulation models, such as EPANET and SWMM, have played a significant role in simulating water distribution, stormwater and sanitary sewer systems. These software packages have played an important, and varying, role to different portions of the water infrast...

The Storm Water Management Model (SWMM) is a widely used tool for urban drainage design and planning. Hundreds of peer-reviewed articles and conference proceedings have been written describing applications of SWMM. This review focused on collecting information on model performanc...

Urban stormwater runoff quantity and quality are strongly dependent upon catchment properties. Models are used to simulate the runoff characteristics, but the output from a stormwater management model is dependent on how the catchment area is subdivided and represented as spatial...

Scientific model developers are able to verify and validate their software via metamorphic testing, even when the expected output of a given test case is not readily available. The tenet is to check whether certain relations hold among the expected outputs of multiple related inp...

EPA&rsquo;s Storm Water Management Model (SWMM) is used throughout the world for planning, analysis, and design related to stormwater runoff, combined and sanitary sewers, and other drainage systems in urban areas. There are many applications for drainage systems in non-urban are...