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In the event of a chemical, biological, radiological, and/or nuclear (CBRN) wide-area incident, the U.S. Environmental Protection Agency (EPA) is responsible for environmental remediation, waste disposal processes, data collection, and data quality checks to advise decision-makin...

Radioactive fallout could have debilitating effects on drinking water and wastewater systems. At least some drinking water system operators have plans to mitigate the effects of a contaminated water source, but most, if not all, wastewater operators have no such plans.  Both...

The timely decontamination of high-density urban areas is critical in the face of a terror event involving radioactive cesium (Cs), which has a 30- year half-life with an energetic 662 keV gamma ray released during decay. This technical brief is intended for local, state and fede...

This paper compared simulation results from different model constructions of a Storm Water Management Model (SWMM) after radiological contamination from a hypothetical dirty bomb scenario. The model constructions included a utility-provided combined sewer stormwater model, a high...

EPA’s Homeland Security Research Program conducts decontamination efficacy studies that identify technologies that can be used to clean surfaces, materials, or objects contaminated with chemical, biological, or radiological agents. This project consisted of an assessment of the m...

This brief provides operating information based on reviewed field experience [1] and laboratory experiments [2-5]. While it discusses general safety, this technical brief does not discuss the safe operation of pressurized sprayer equipment to avoid physical hazards which are typi...

Web based application-available to the public. NOTE: Only indoor and outdoor self help portions of the tool are being cleared. The base application/tool which is now the urban section was previously cleared. 

The RRLT database includes detailed information on the equipment’s everyday function, its effectiveness on different surfaces and forms of radioactive contaminants, the scale for which the equipment may be applied, the skill required of the operator, utility requirements, legal a...

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 ...

EPA’s Homeland Security Research Program (HSRP) within the Office of Research and Development conducts research to aid in the response and recovery from radiological disasters. EPA is leading stormwater modeling studies that investigate how to simulate transport of radiolog...

A large-scale release of a chemical, radiochemical, or biological (CBR) agent can result in wide-area contamination and would require significant time and resources for recovery. Several Environmental Protection Agency (EPA) Homeland Security Research Program (HSRP) decision supp...

The spread of radiological contamination from rainfall events is well documented from both the Chernobyl and Fukushima nuclear disasters. However, the inclusion of stormwater modeling into local, state, and federal response planning and response is limited. The goal and purpose o...

An accidental radiological release or the operation of a radiological dispersal device (RDD) may lead to the contamination of a large area. Such scenarios may lead to health and safety risks associated with the resuspension of contaminated particles due to aeolian (wind-induced) ...

To mitigate the effects following a large-scale nuclear or radiological material release in an urban environment and to expedite recovery, the Integrated Wash-Aid Treatment Emergency Reuse System (IWATERS) was developed. IWATERS consists of three operations: washing contaminated ...

This paper presents the process used to develop an overland flow model of radionuclide transport following an aerosol deposition from a hypothetical radiological dispersal device explosion. The process included the integration of digital elevation, building, and land cover inform...

During the immediate, emergency phase of a response to a radiological dispersal device (RDD), an improvised nuclear device (IND), or accidental radiological release, emergency responders may be exposed to radioactivity due to inhalation and direct contact. It is important to mini...

Management of waste from radiological incidents is complicated by the fact that decontamination decisions have a profound impact on the characteristics of resulting waste streams. Wide-area radiological incidents could produce massive quantities of waste that might need to be tre...

Over the last year, ORD had been engaging with partners and planning future research. Historically, HSRP water decontamination research has focused on “big” utility infrastructure, but contamination events affect home and building plumbing too. Home and building ...

These slides are for the U.S. EPA’s Homeland Security Research Program  1-day virtual radiological stormwater modeling workshop. The workshop is sponsored by the DHS’s National Urban Security Technology Laboratory and co-organized with the DOE’s Argonne National Laboratory. Durin...

This report summarizes results of research conducted to determine the decontamination efficacy of Stripcoat TLC Free (Stripcoat), DeconGel 1108 (DeconGel 1108), Argonne SuperGel (ASG), Rad-Release II (RRII), Quick Decon Mass Effect Solution (QDS), DeconGel 1128 (DeconGel 1128), a...

Managing the response to urban radiological terrorism requires advanced planning and rapid response to minimize health risks to residents and mitigate long-term impacts to municipal infrastructure and the environment.  A radiologic dispersal device can result in a widespread...

March 11, 2021, marked the 10-year anniversary of the accident at the Fukushima Daiichi Nuclear Power Plant in Japan which was caused by an initial earthquake and subsequent tsunami. This was the most significant accident at a nuclear power plant since the Chernobyl disaster...

March 11th marked the 10-year anniversary of the accident at the Fukushima Daiichi Nuclear Power Plant in Japan which was caused by an initial earthquake and subsequent tsunami. This was the most significant accident at a nuclear power plant since the Chernobyl disaster in 1986. ...

States and localities are looking for ways to integrate climate resilience and environmental justice into how they prepare, respond, mitigate, and recover from disasters. These efforts require effective and inclusive engagement with many broad constituencies. The research present...

 In all, this presentation will familiarize the audience on the decision support tool’s overall versatility and breadth to which it can support objectives, strategies, and tactics not only for nuclear and radiological releases, but also chemical and biological threat a...