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Records with

  • Keyword = ’homeland security AND ‘water security’ AND (decontamination OR ‘water treatment) AND (‘water distribution system’ OR ‘distribution system’ OR ‘drinking water infrastructure’) NOT (presentation OR poster).
Records 1 to 25 of 55

2023
Strategies to minimize sediment contamination and transport in distribution systems
(PUBLISHED REPORT) [Published : Jul 31, 2023]
Drinking water storage tanks serve several important functions, which include but are not limited to providing an adequate water supply in the case of firefighting emergencies, power outages, water main breaks, or other system failures. The water level elevation in storage tanks ...
2021
Water on Wheels (WOW) Mobile Emergency Water Treatment System Cart
(COMMUNICATION PRODUCT) [Published : Sep 13, 2021]
Most emergency water treatment systems are large and expensive tractor-trailer mounted systems. They can be complicated to operate and maintain (high pressures and concentrated wastes) given their reliance on reverse osmosis water treatment technology. An emergency water treatmen...
2020
Decontamination of Drinking Water Distribution System Infrastructure after Contamination with Untreated Source Water
(PUBLISHED REPORT) [Published : May 31, 2020]
This report summarizes the results of infrastructure decontamination experiments performed at the WSTB. These experiments focused on simulating contamination of drinking water distribution pipes with untreated source water due to a treatment failure at a water treatment facility...
Fire Hydrant Flushing Treatment Diffusser and Effectiveness of Flushing Hydrants for Contamination Removal
(SUMMARY) [Published : Jul 31, 2020]
Flushing contaminated water out of the distribution system using the existing network of fire hydrants is considered the most probable first action in response to a drinking water system contamination incident. Hydrant Flushing and Chlorination experiments were conducted at the W...
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
Decontamination of Bacillus Spores from Drinking Water Infrastructure with Physical Removal (Pigging) and Assessment of Pipe Relining Technologies
(PUBLISHED REPORT) [Published : Sep 16, 2019]
The objectives of this project were to evaluate the effectiveness of: (1) a physical scouring (pigging) technology for removing Bacillus globigii spores following intentional contamination of the Water Security Test Bed (WSTB). First responders and decision makers managing a wate...
Full-Scale Decontamination of Bacillus Spores from Drinking Water Infrastructure
(SUMMARY) [Published : May 22, 2019]
The drinking water distribution system is vulnerable to contamination, which presents challenges to maintaining good water quality and ensuring water availability. Decontamination of drinking water systems, following an intentional contamination incident or a natural disaster, is...
Numerical Model for Decontamination of Organic Contaminants in Polyethylene Drinking Water Pipes in Premise Plumbing by Flushing
(JOURNAL) [Published : Jul 01, 2019]
Polymeric materials such as polyethylene and polypropylene are used extensively for drinking water applications. These materials are subject to permeation by organic compounds, such as those found in petroleum products and industrial chemicals, which can result in water quality i...
Quantifying hydraulic and water quality uncertainty to inform sampling of drinking water distribution systems
(JOURNAL) [Published : Jan 01, 2019]
Sampling of drinking water distribution systems is performed to satisfy regulatory requirements but also to respond to customer complaints or emergency situations. Water distribution system modeling techniques can be used to plan and inform sampling strategies; however, a high de...
2018
Decontamination of Bacillus Spores from Drinking Water Infrastructure with Physical Removal (Pigging)
(PUBLISHED REPORT) [Published : Sep 25, 2018]
This report summarizes the results of biological decontamination experiments performed at the WSTB focused on removing Bacillus globigii spores adhered to the inner surface of the 8-inch water pipe. B. globigii spores are a non-pathogenic surrogate for B. anthracis, which is the...
2017
Adsorption of Malathion onto Copper and Iron Surfaces Relevant to Water Infrastructure
(JOURNAL) [Published : Nov 01, 2017]
This study investigated the adsorption of malathion to copper and iron surfaces including pipe specimens similar to those in drinking water infrastructure.
CANARY Eases Water Quality Event Detection
(JOURNAL) [Published : Apr 01, 2017]
CANARY is a free EPA software product used to enhance the detection of contamination incidents in distribution systems (i.e. Event Detection System) using typical water quality sensors such as those measuring free chlorine, total organic carbon, and electrical conductivity. Worki...
Decontamination of Bacillus spores adhered to iron and cement-mortar drinking water infrastructure in a model system using disinfectants
(JOURNAL) [Published : Feb 01, 2017]
Bacillus spores are persistent on common drinking water infrastructure surfaces such as corroded iron and cement-mortar. Due to their resistance to disinfection, inactivation of spores can be used as a benchmark for decontamination of biological agents from drinking water infrast...
EPA's Water Security Test Bed
(SUMMARY) [Published : Apr 18, 2017]
Technical Brief
Modeling Fate and Transport of Arsenic in a Chlorinated Distribution System
(JOURNAL) [Published : Apr 05, 2017]
Journal Article
Water Security Toolkit User Manual: Version 1.3
(DATA/SOFTWARE) [Published : Apr 13, 2017]
User manual: Data Product/Software
2016
Incorporating a Capability for Estimating Inhalation Doses in TEVA-SPOT
(PUBLISHED REPORT) [Published : Aug 08, 2016]
Report and Data Files
Pilot-Scale Decontamination of Surrogate Radionuclides in a Pilot-Scale Drinking Water Distribution System
(PUBLISHED REPORT) [Published : Sep 07, 2016]
This study examined decontamination of non-radioactive cesium, strontium and cobalt in a pilot scale model of a drinking water distribution system. The system was outfitted with coupons (excised pipe wall samples) of corroded iron and cement-mortar, which are common distribution...
Water Security Test Bed Experiments at the Idaho National Laboratory
(PUBLISHED REPORT) [Published : Aug 01, 2016]
Report