Science Inventory

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In 2017, WE&RF published the guidance document “Risk-Based Framework for the Development of Public Health Guidance for Decentralized Non-Potable Water Systems” recommending pathogen log-reduction targets (LRTs) for the treatment of alternative water sources (graywater, combined w...

Defining the treatment necessary for safe nonpotable reuse of on-site collected wastewaters was identified by stakeholders as a key roadblock for greater adoption. Subsequent risk-based modeling research developed treatment guidance which has been translated into regulation in mu...

Summarize recent results from ORD research on onsite nonpotable water reuse systems, emphasizing our work with quantitative microbial risk assessment and life cycle analysis. 

The need for defining treatment guidance for safe onsite non-potable water reuse was identified as a key roadblock to adoption by a diverse group of public health regulators and utilities who came together to form the National Blue Ribbon Commission (NBRC) for Onsite Non-potable ...

Risk-based management of onsite non-potable water systems relies on pathogen log-reduction targets (LRTs) derived using best-available scientific information. Here, we present new LRTs for California and discuss implications in comparison to previous recommendations. We also high...

The annual risks of colonization, skin infection, blood stream infection (bsi), and disease burden from exposures to antibiotic resistant and susceptible Staphylococcus aureus (S. aureus) were estimated using quantitative microbial risk assessment. We estimated the probability of...

The overall purpose of the Pilot Study is to develop a national-scale, quantitative assessment of AMR within surface water. The four main objectives as developed from initial meetings of the National Antimicrobial Resistance Monitoring System Environmental Working Group (NARMS EW...

Antimicrobial resistance (AMR) has been identified as one of the top medical issues worldwide, leading many countries to place greater emphasis on combating resistant bacteria through a multipronged, coordinated approach.&nbsp; A consensus has emerged among the greater public hea...

The overall purpose of the Pilot Study is to develop a national-scale, quantitative assessment of AMR within surface water. The four main objectives as developed from initial meetings of the National Antimicrobial Resistance Monitoring System Environmental Working Group (NARMS EW...

Greywater, the wastewater from sinks, showers, and laundry, is an understudied environment for bacterial communities. Most greywater studies focus on quantifying pathogens, often via proxies like Fecal Indicator Bacteria. More recently, sequencing-based studies have revealed dist...

The National Blue Ribbon Commissions is a coalition of public health agencies and water and wastewater utilities that advances best management practices to support the use of onsite non-potable water systems within individual buildings or at the local scale.&nbsp; This presentati...

The U.S. EPA&rsquo;s Non-Potable Environmental and Economic Water Reuse (NEWR) Calculator is a simple to use web-based tool for screening-level assessments of source water options for any urban building location across the Unites States that is considering onsite non-potable reus...

Collaborating with States and Tribes, the United States Environmental Protection Agency (EPA) conducts periodic and rotating, probabilistic surveys of: U.S. rivers and streams; estuarine and Great Lakes nearshore coastal waters; lakes and ponds; and wetlands from the lower contig...

Background slides to lead follow-up discussion of water reuse research portfolio with WTI BOSC.

The presentation provides a high level overview of RA9, including all product areas associated with Output 9.1 and Output 9.2

The presented research uses life cycle assessment and life cycle cost (LCC) analysis to evaluate a Massachusetts wastewater treatment facility, treating 23.5 million gallons per day, upgrading to a water resource recovery facility (WRRF). The facility recently installed additiona...

Widespread studies conducted national and globally indicate that genes specific to the SARS-CoV-2 virus can be detected in wastewater. The ability to collectively sample both symptomatic and asymptomatic individuals has lead dozens of state, cities, and universities to actively m...

SARS-CoV-2 has been detected in wastewater worldwide and has been suggested as a tool for monitoring Covid-19 spread and identifying outbreaks on a community level. Many localities are implementing wastewater surveillance to quantify and track SARS-CoV-2 over time, and in some ca...

The Non‐potable Environmental and Economic Water Reuse Calculator (Calculator) is a simple, web-based tool for screening-level assessments of source water options for any urban building location across the U.S. The goal of the calculator is to identify the most environmentally an...

Widespread studies conducted national and globally indicate that genes specific to the SARS-CoV-2 virus can be detected in wastewater. The ability to collectively sample both symptomatic and asymptomatic individuals has lead dozens of state, cities, and universities to actively m...

The wastewater industry is in the midst of a paradigm shift from focusing solely on treatment to incorporating concepts aimed at mitigating environmental impacts such as energy and nutrient recovery and water reuse. This study uses life cycle assessment and life cycle cost analys...

SARS-CoV-2 has been detected in wastewater worldwide and has been suggested as a tool for monitoring Covid-19 spread and identifying outbreaks on a community level. Many localities are implementing wastewater surveillance to quantify and track SARS-CoV-2 over time, and in some ca...

Onsite non-potable water reuse provides an opportunity to reduce stress on both potable water supplies and wastewater collection systems; however, care must be taken to manage microbial risks. Source waters such as graywater, blackwater, stormwater, and rainwater contain distinc...

Onsite non-potable water reuse is a transformative approach that collects locally available water sources (e.g., graywater, wastewater, stormwater, and rainwater) for decentralized treatment and use in low-exposure applications such as irrigation and toilet flushing, reducing str...

Onsite non-potable reuse (NPR) is a way for buildings to conserve water using onsite sources for uses like toilet flushing, laundry and irrigation. Although early case study results are promising, aspects like system suitability, cost and environmental performance remain difficul...