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Homeland Security Research Products in the Science Inventory

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  • Keyword = 'water security' AND 'WNTR'.
Records 1 to 25 of 34

2025
Geospatial capabilities to couple hazard and social vulnerability data in water distribution criticality analysis
(JOURNAL) [Published : Feb 01, 2025]
A resilience analysis of a water distribution system is greatly enhanced by the integration of up-to-date geospatial data describing the water system, hazards, and surrounding community. The Water Network Tool for Resilience (WNTR), an open-source Python package designed to simul...
Water Network Tool for Resilience (WNTR) Overview, Requirements, and Tutorials
(SUMMARY) [Published : Oct 08, 2025]
This document includes an overview summary of the Water Network Tool for Resilience (WNTR), a listing of the data requirements to use WNTR, and a list of WNTR tutorials available. It also includes Jupyter Notebooks for these tutorials. These resources can help drinking water util...
Water Network Tool for Resilience (WNTR) Saltwater Intrusion Tutorial
(DATA/SOFTWARE) [Published : Jul 14, 2025]
Drinking water utilities need to be resilient to all types of disasters. The Water Network Tool for Resilience (WNTR) will be updated to use data projection maps available in Office of Water's Climate Resilience Evaluation and Awareness Tool (CREAT). The inclusion of these maps w...
2024
Adding Multispecies Water Quality Reactions to Resilience Modeling Tools
(PRESENTATION) [Presented : May 22, 2024]
The resilience of a drinking water distribution system can be associated with both the hydraulics and water quality of the system. The Water Network Tool for Resilience (WNTR) relied on the water quality component of EPANET 2.2 to track and transport a single species within the d...
EPA's Water Network Tool for Resilience (WNTR): AWWA Emergency Preparedness and Security Committee Meeting
(PRESENTATION) [Presented : Nov 08, 2024]
Drinking water utilities face multiple challenges, including aging infrastructure, water quality concerns, pipe breaks, uncertainty in supply and demand, natural disasters, environmental emergencies, and terrorist attacks. All of these have the potential to disrupt service to cus...
EPA's Water Network Tool for Resilience (WNTR): ORD/OW Small Drinking Water Systems Webinar
(PRESENTATION) [Presented : Jan 30, 2024]
Drinking water utilities face multiple challenges, including aging infrastructure, water quality concerns, pipe breaks, uncertainty in supply and demand, natural disasters, environmental emergencies, and terrorist attacks. All of these have the potential to disrupt service to cus...
Landslide Pipe Criticality Analysis Linking Hazard and Social Vulnerability Data
(PRESENTATION) [Presented : May 22, 2024]
Resilience analysis of critical infrastructure is inherently complex and requires the integration of diverse geospatial data and disparate models in a cohesive analysis to produce meaningful decision support. Recent updates to the Water Network Tool for Resilience (WNTR) allow in...
WNTR and related open-source software for water distribution system analysis: Training and discussion on future capabilities
(PRESENTATION) [Presented : Jul 01, 2024]
Within the field of water distribution system analysis, there is an increasing trend to create open source publicly available software that could be used, replicated, and generalized for a wide range of use cases.  This includes the development of numerical models, resilienc...
2023
EPA's Water Network Tool for Resilience (WNTR)
(PRESENTATION) [Presented : Sep 14, 2023]
Drinking water utilities face multiple challenges, including aging infrastructure, water quality concerns, pipe breaks, uncertainty in supply and demand, natural disasters, environmental emergencies, and terrorist attacks. All of these have the potential to disrupt service to cus...
Modeling Strategies to Identify Water Distribution System Sampling Locations
(SUMMARY) [Published : Nov 28, 2023]
The delivery of safe, potable water to communities is the primary objective of drinking water utilities. However, the quality of the water can deteriorate as it is transported from the treatment plant through the distribution system to the customers due to interactions with the p...
Performance and Resilience Analysis of a New York Drinking Water System to Localized and System-Wide Emergencies
(JOURNAL) [Published : Jan 31, 2023]
Drinking water utilities are vulnerable to both human-caused and natural disasters that can impact the system infrastructure and the delivery of potable water to consumers. Resilience analysis can help utilities identify high-risk areas in their system and understand how to bette...
Resilience analysis and emergency response evaluation for drinking water systems
(JOURNAL) [Published : Jun 01, 2023]
Drinking water utilities are vulnerable to both human-caused and natural disasters that can impact the system infrastructure and the delivery of potable water to consumers. Resilience analysis can help utilities identify high-risk areas in their system and understand how to bette...
US EPA's Water Quality Modeling Tools and Sensor Research
(PRESENTATION) [Presented : Sep 29, 2023]
This presentation provides a general overview of EPA's modeling tools and associated water quality sensor research. Tool functionality is described and how they interact or are informed by sensor research will be discussed during the presentation. Tools include EPANET, EPANET-MSX...
WNTR Capabilities to Support Data Integration and Co-simulation
(PRESENTATION) [Presented : May 25, 2023]
Resilience analysis of critical infrastructure is inherently complex and requires the integration of diverse data and disparate models in a cohesive analysis to produce meaningful decision support.  In this presentation, we discuss recent updates to the Water Network Tool for Res...
Water Infrastructure Resilience Evaluation Using WNTR
(SUMMARY) [Published : Sep 01, 2023]
Drinking water utilities face multiple challenges, including aging infrastructure, water quality concerns, pipe breaks, natural disasters, environmental emergencies, and terrorist attacks. All of these have the potential to disrupt service to customers and damage critical infrast...
Water Network Tool for Resilience (WNTR) User Manual Version 1.0
(PUBLISHED REPORT) [Published : Sep 01, 2023]
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...
2022
A Case Study Application of Water Network Tool for Resilience (WNTR)​
(PRESENTATION) [Presented : Jan 06, 2022]
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...
Assessing the resilience of Region 2 drinking water systems to natural disasters - EPA's Water Network Tool for Resilience (WNTR)
(PRESENTATION) [Presented : Aug 25, 2022]
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...
Chapter 12: Water Network Tool for Resilience
(BOOK CHAPTER) [Published : Jun 01, 2022]
This chapter introduces the Water Network Tool for Resilience (WNTR) and how it can be used to evaluate drinking water distribution system (WDS) resilience. At the end of this chapter, the reader will be able to install and run WNTR, set up and run various disaster scenario simul...
Resilience analysis of potable water service after power outages in the U.S. Virgin Islands
(JOURNAL) [Published : Dec 01, 2022]
The two Category-5 hurricanes that impacted the U.S. Virgin Islands in 2017 exposed critical infrastructure vulnerabilities that needs to be addressed. While the water utility has first-hand knowledge about how the hurricanes impacted their systems, the use of modeling and simula...
2021
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...
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...
2020
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...
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...
2019
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...