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  • Keyword = EPANET.
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Records 1 to 25 of 89

Recent updates to the Water Network Tool for Resilience software
(PRESENTATION) [Presented : Jun 11, 2021]
The Water Network Tool for Resilience (WNTR) was first released in 2016. WNTR uses the methods in the EPANET toolkit API to simulate and analyze resilience of water distribution systems. WNTR has been recently updated to include new features designed to improve resilience analysi...
Lagrangian Method to Model Advection-Dispersion-Reaction Transport in Drinking Water Pipe Networks
(JOURNAL) [To be published : Sep 01, 2021]
A fully Lagrangian method to simulate the advection, dispersion and reaction of a single constituent within a pipe network is presented. Fixed computational grids required in Eulerian and Eulerian-Lagrangian methods are not needed in the fully Lagrangian method and the size of th...
Case Study Applications of Water Network Tool for Resilience (WNTR)​
(PRESENTATION) [Presented : Jun 07, 2021]
Water distribution systems are among the most critical civil infrastructure and must be prepared to withstand or quickly recover from any disruptive incident. With increasing threats to drinking water systems, including natural disasters, water shortages, power outages, bioterror...
Validation of Pressure Dependent Demand for Premise Plumbing Systems
(PRESENTATION) [Presented : Jun 11, 2021]
Flowrates within premise plumbing systems (PPS) can be dramatically impacted by pressure loss or fluctuations, which can be the result of poor pressure in the distribution system or simultaneous multiple fixture use. Pressure dependent analysis (PDA) was introduced as a feature o...
The Science and Engineering Behind EPA’s Water Modeling – Celebrating 50 Years of Progress and Charting a Path for the Future
(PRESENTATION) [Presented : Feb 25, 2021]
This presentation provides a brief overview of the origins and history of the EPA, our water research program, and current water infrastructure modeling tools.
Real-Time Water Distribution System Hydraulic Modeling Using Prior Demand Information by Formal Bayesian Approach
(JOURNAL) [Published : Dec 01, 2019]
Real-time water distribution system (WDS) hydraulic models is being used in water utilities. The hydraulic models must be calibrated carefully before they are in use. Most existing calibration methods either require substantial computation resources or lack flexibility to link th...
Framework for Modeling Lead in Premise Plumbing Systems Using EPANET
(JOURNAL) [Published : Dec 01, 2020]
Lead contamination of drinking water in homes and buildings remains an important public health concern. In order to assess strategies to measure and reduce exposure to lead from drinking water, models are needed that incorporate the multiple factors affecting lead concentrations...
Future of Water Distribution Modeling and Data Analytics Tools
(PUBLISHED REPORT) [Published : Oct 01, 2019]
The U.S. Environmental Protection Agency (EPA) is responsible for helping communities prepare for and recover from disasters that result in threats to public health and the environment. EPA’s National Homeland Security Research Center’s (NHSRC) mission is to focus on the research...
EPA Tools & Resources Webinar: Drinking Water Models and Tools
(PRESENTATION) [Presented : Nov 18, 2020]
This presentation provides an overview of EPA ORD's drinking water models and tools, explaining when they can be used, and how to access them. These models and tools can be used by engineers, consultants, students, planners, regulators, and others to solve drinking water problem...
Threat Ensemble Vulnerability Assessment - Sensor Placement Optimization Tool (TEVA-SPOT) Graphical User Interface
(PUBLISHED REPORT) [Published : Aug 30, 2016]
Please find below 4 links for downloading, installing and using the TEVA-SPOT graphical user interface (GUI) software. For the complete TEVA-SPOT-GUI software package, please download the ZIP file. A description of each of the 4 links, including the contents of the ZIP file, is...
Water Network Tool for Resilience (WNTR) User Manual: Version 0.2.3
(PUBLISHED REPORT) [Published : Sep 30, 2020]
The U.S. Environmental Protection Agency and Sandia National Laboratories have developed the Water Network Tool for Resilience (WNTR) to quantify resilience of drinking water distribution systems. WNTR is a Python package designed to simulate disaster sceanrios and analyze impact...
Technical Support Summary, Water Infrastructure Division, Fiscal Year 2019
(PUBLISHED REPORT) [Published : Sep 29, 2020]
This report provides a summary of the various types of technical support requests that the United States Environmental Protection Agency’s (EPA) Center for Environmental Solutions and Emergency Response (CESER), Water Infrastructure Division (WID) staff responded to during ...
Water Security Toolkit User Manual: Version 1.5
(PUBLISHED REPORT) [Published : Sep 25, 2020]
The Water Security Toolkit (WST) is a suite of tools that help provide the information necessary to make good decisions resulting in the minimization of further human exposure to contaminants, and the maximization of the effectiveness of intervention strategies. WST assists in th...
EPA Tools and Resources Webinar: Water Network Tool for Resilience
(PRESENTATION) [Presented : Sep 16, 2020]
The U.S. Environmental Protection Agency and Sandia National Laboratories have developed the Water Network Tool for Resilience (WNTR) to quantify resilience of drinking water distribution systems. WNTR is a Python package designed to simulate disaster scenarios and analyze impact...
EPANET: An Introduction and Example Applications
(PRESENTATION) [Presented : Sep 02, 2020]
What is EPANET? • Not an acronym! • Computer program (Microsoft Windows desktop or laptop software application) • Graphical user interface • Command line & Toolkit versions • Used for modeling and analyzing a water distribution system • Input is a pipe network layout • Out...
EPANET 2.2 User Manual
(PUBLISHED REPORT) [Published : May 20, 2020]
Updated User's Manual for EPANET
Mixing at double-Tee junctions with unequal pipe sizes in water distribution systems
(JOURNAL) [Published : Dec 14, 2016]
Pipe flow mixing with various solute concentrations and flow rates at pipe junctions is investigated. The degree of mixing affects the spread of contaminants in a water distribution system. Many studies have been conducted on the mixing at the cross junctions. Yet a few have focu...
Let's Get Moving and Write Software: an Open Source Project for EPANET
(JOURNAL) [Published : Apr 10, 2018]
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...
Modeling Water Age in Premise Plumbing Systems - Cincinnati
(PRESENTATION) [Presented : Jun 30, 2020]
Water quality in homes and buildings is impacted by a combination of the incoming water chemistry, characteristics of the unique plumbing system, and how the water is used. Modeling premise plumbing systems enables the examination of different aspects of hydraulics and water qual...
EPANET 2.2.0
(DATA/SOFTWARE) [Published : Jun 11, 2020]
EPA/Community release of EPANET 2.2.0. EPA release of updated version of EPANET - EPANET 2.2.0. This release of EPANET 2.2.0 represents a collaboration with the EPANET developer community at Open Water Analytics (OWA) ( The EPANET ...
Mass Imbalances in EPANET Water-quality Simulations
(JOURNAL) [Published : Apr 06, 2018]
This journal article examines EPANET, which is widely employed to simulate water quality in water distribution systems. However, the time-driven simulation approach used to determine concentrations of water-quality constituents provides accurate results, in general, only for smal...
Modeling Fate and Transport of Arsenic in a Chlorinated Distribution System
(JOURNAL) [Published : Apr 05, 2017]
Journal Article
Open Source Software to Analyze Water Distribution System Resilience
(PRESENTATION) [Presented : Feb 19, 2020]
The presentation is an invitational overview of the Water Network Tool for Resilience (WNTR). WNTR is a tool that members of the WFS’ could use to address disastrous risks to water systems. Sandia and the EPA are developing a wide range of capabilities to help water utilities do ...
Open Source EPANET: Community-Based Software Development for Drinking Water Infrastructure Modeling
(SUMMARY) [Published : Jan 15, 2018]
Research summary for EPANET. EPANET was created by the US EPA in the 1990s out of a need to better understand water quality transport processes in water distribution systems. Work ceased in 2000 and it last received a minor update in 2008. In the intervening time, EPANET has bec...