Homeland Security Research Products in the Science Inventory

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Keyword = 'TEVA SPOT' OR CANARY OR EPANET OR 'EPANET extensions' OR (EPANET RTX OR EPANET BTX OR EPANET MSX).

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2021

Lagrangian Method to Model Advection-Dispersion-Reaction Transport in Drinking Water Pipe Networks
(JOURNAL) [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...

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...

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.

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...

2020

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...

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 2.2 User Manual
(PUBLISHED REPORT) [Published : May 20, 2020]

Updated User's Manual for EPANET

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) (https://github.com/OpenWaterAnalytics/EPANET). The EPANET ...

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...

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...

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...

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 ...

Review of Modeling Methodologies for Managing Water Distribution Security
(JOURNAL) [Published : Aug 01, 2020]

Activities for managing the security of water distribution systems assess and manage hazards that threaten water delivery, water quality, and physical and cybernetic infrastructure. This manuscript conducts a review of academic literature to report on the state-of-the-art in mode...

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 Network Tool for Resilience (WNTR) User Manual: Version 0.2.3
(PUBLISHED REPORT) [Published : Sep 30, 2020]

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...

2019

Application of the Sea-Level Affecting Marshes Model (SLAMM) to the Lower Delaware Bay, with a Focus on Salt Marsh Habitat
[Published : Apr 30, 2019]

Coastal salt marshes--which provide valued ecosystem services such as flood control, water purification and critical habitat--are vulnerable to ongoing sea level rise, which is interacting with physical and biological attributes of the system to induce complex changes in salt mar...

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...

Modeling Water Age in Premise Plumbing Systems
(PRESENTATION) [Presented : May 23, 2019]

Monitoring and Operating Internal Building Drinking Water Distribution Systems to Maintain Drinking Water Quality
(PRESENTATION) [Presented : Mar 05, 2019]

Establish adequate sampling points for hot and cold water collection (faucets and shower heads) that represent spatial variability in water. Develop sampling protocol to monitor water quality from the targeted sampling points. Identify critical water quality parameters to be moni...

Numerical Modeling of Premise Plumbing Systems Considering Dispersion Effect
(PRESENTATION) [Presented : May 23, 2019]

The presence of contaminants in drinking water premise plumbing systems (PPS) remains a significant public health issue. Water quality in plumbing can be affected by various factors such as pipe materials, pipe scales, water chemistry, and water usage patterns. Intermittent water...

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...

Using Hydraulic Modeling Tools to Assess the Resilience of Drinking Water Distributions Systems
(PRESENTATION) [Presented : Oct 08, 2019]

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, bioterro...

2018

AN OVERVIEW OF THE WATER NETWORK TOOL FOR RESILIENCE (WNTR) - Canada
(PAPER IN NON-EPA PROCEEDINGS) [Published : Jul 25, 2018]

WNTR integrates hydraulic and water quality simulation, a wide range of damage and response options, and resilience metrics into a single software framework, allowing for end-to-end evaluation of water network resilience. WNTR includes capabilities to 1) generate and modify water...

An Overview of the Water Network Tool for Resilience (WNTR)
(PRESENTATION) [Presented : Jul 25, 2018]

The Water Network Tool for Resilience (WNTR) is a new software package that integrates hydraulic and water quality simulation, a wide range of damage and response models, and resilience metrics into a single software framework, allowing for end-to-end evaluation of drinking water...