Related Topics: Water Research

Water Research Products in the Science Inventory

Records 1 to 25 of 2992

Impact of Growth Conditions and Suspension Time on Toxin Release from M. aeruginosa Upon Exposure to Potassium Permanganate (PRESENTATION)
The objective of this work was to assess the effects of KMnO4 on pure cultures of cyanobacteria (Microcystis aeruginosa) in a jar test. Of particular interest was the impact this oxidant has on the release of intracellular toxin from cells as a function of growth conditions in cu...
Water Network Tool for Resilience (WNTR) User Manual - (PUBLISHED REPORT)
The Water Network Tool for Resilience (WNTR) is a new Python package designed to simulate and analyze resilience of water distribution networks to a variety of disaster scenarios. WNTR can help water utilities to explore the capacity of their systems to handle disasters and gui...
Correlation of Traditional Water Quality Parameters with Metal Concentrations in Permeable Pavement Infiltrate (PRESENTATION)
EPA constructed a 4,000-m2 parking lot for research and demonstration of three permeable pavements [permeable interlocking concrete pavers (PICP), pervious concrete (PC), and porous asphalt (PA)] at the Edison Environmental Center in Edison, NJ in 2009. Infiltrate samples from e...
Water System Adaptation to Hydrological Changes: Module 1, Introduction to Water System Adaptation (PRESENTATION)
Contemporary water management requires resilience, the ability to meet ever increasing water needs, and capacity to adapt to abrupt or transient changes in water quality and availability. For this purpose, effective adaptation to extreme hydrological events (e.g. intense storms, ...
Home Plumbing Simulator for the Study of Copper and Lead Corrosion and Release, Disinfectant Demand, Biofilm Activity and General Water Quality (PRESENTATION)
Presentation at the Ohio AWWA meeting, 2017 September.
Developing Sediment Remediation Goals at Superfund Sites Based on Pore Water for the Protection of Benthic Organisms from Direct Toxicity to Non-ionic Organic Contaminants (PUBLISHED REPORT)
This document contains a methodology for developing interstitial water remediation goals (IWRGs) for nonionic organic pollutants (toxicants) in sediments for the protection of benthic organisms. The document provides the basis for using the final chronic values (FCVs) from EPA’s...
Hospital visits for gastrointestinal Illness after a major water main break in 2010 (PRESENTATION)
Background/Aim Water main breaks can occur due to the stresses of an aging infrastructure and changing climate. Water main breaks are a public health concern because they can cause pressure transients (specifically, abrupt decreases in water pressure/flow in the pipeline), which ...
Nutrient Removal and Resource Recovery: Effect on Life Cycle Cost and Environmental Impacts of Small Scale Wastewater Treatment (PRESENTATION)
Many communities across the U.S. are required to upgrade wastewater treatment plants (WWTP) to meet increasingly stringent nutrient effluent standards. However, increased capital, energy and chemical requirements of upgrades create potential trade-offs between eutrophication pote...
Treatment of Perfluorinated Alkyl Substances in Wash Water Using Granular Activated Carbon and Mixed-Media (PUBLISHED REPORT)
Report
Tillamook Estuary Case Study: Local Drivers Influencing Coastal Acidification (PRESENTATION)
US EPA initiated a study in the Tillamook estuary and watershed focused on the impact of changes in watershed land use, ocean conditions, and weather on estuarine water quality and ecosystem goods and services production within the estuary. This project is a collaboration betwee...
Land Use. (BOOK CHAPTER)
Land use in the Narragansett Bay Watershed (NBW) is subject to conversion, and these changes influence the Watershed’s hydrologic functions. Changes of natural habitat such as wetlands and forests to urban lands have impacted how water is delivered to rivers and lakes, to g...
Population (BOOK CHAPTER)
Population growth influences many stressors on Narragansett Bay and its Watershed, including all landscape and chemical stressors discussed in other chapters of this report. In numerous ways, population growth affects the condition of the Bay ecosystem, Watershed ecosystem, and h...
Water Network Tool for Resilience (WNTR) User Manual (PUBLISHED REPORT)
manual
Multi-media assessment of lead for USA children with SHEDS-multimedia (PRESENTATION)
This effort stemmed out of OW’s request to ORD to provide technical assistance for revising the LCR
Quantitative Microbial Risk Assessment Tutorial - Primer (PUBLISHED REPORT)
This document provides a Quantitative Microbial Risk Assessment (QMRA) primer that organizes QMRA tutorials. The tutorials describe functionality of a QMRA infrastructure, guide the user through software use and assessment options, provide step-by-step instructions for implementi...
Quantitative Microbial Risk Assessment Tutorial Installation of Software for Watershed Modeling in Support of QMRA - Updated 2017 (PUBLISHED REPORT)
This tutorial provides instructions for accessing, retrieving, and downloading the following software to install on a host computer in support of Quantitative Microbial Risk Assessment (QMRA) modeling: • QMRA Installation • SDMProjectBuilder (which includes the Mi...
Quantitative Microbial Risk Assessment Tutorial - SDMProjectBuilder: Import Local Data Files to Identify and Modify Contamination Sources and Input ParametersUpdated 2017 (PUBLISHED REPORT)
Twelve example local data support files are automatically downloaded when the SDMProjectBuilder is installed on a computer. They allow the user to modify values to parameters that impact the release, migration, fate, and transport of microbes within a watershed, and control delin...
Quantitative Microbial Risk Assessment Tutorial - Navigate the SDMPB and Identify an 8-digit HUC of Interest - Updated 2017 (PUBLISHED REPORT)
This tutorial reviews some of the screens, icons, and basic functions of the SDMProjectBuilder (SDMPB) that allow a user to identify an 8-digit HUC (HUC-8) of interest from which a pour point or 12-digit HUC (HUC-12) can be chosen for a microbial assessment. It demonstrates how t...
Peer Review for EPA’s Biologically Based Dose-Response (BBDR) Model for Perchlorate (CRITERIA DOCUMENT)
EPA is developing a regulation for perchlorate in drinking water. As part the regulatory process EPA must develop a Maximum Contaminant Level Goal (MCLG). FDA and EPA scientists developed a biologically based dose-response (BBDR) model to assist in deriving the MCLG. This mode...
Building a Potential Wetland Restoration Indicator for the Contiguous United States. (JOURNAL)
Wetlands provide key functions in the landscape from improving water quality, to regulating flows, to providing wildlife habitat. Over half of the wetlands in the contiguous United States (CONUS) have been converted to agricultural and urban land uses. However, over the last seve...
Building a Potential Wetland Restoration Indicator for the Contiguous United States (JOURNAL)
Wetlands provide key functions in the landscape from improving water quality, to regulating flows, to providing wildlife habitat. Over half of the wetlands in the contiguous United States (CONUS) have been converted to agricultural and urban land uses. However, over the last seve...
Influences of Coal Ash Leachates and Emergent Macrophytes on Water Quality in Wetland Microcosms (JOURNAL)
The storage of coal combustion residue (CCR) in surface water impoundments may have an impact on nearby water quality and aquatic ecosystems. CCR contains leachable trace elements that can enter nearby waters through spills and monitored discharge. It is important, therefore, to ...
Developing qualitative ecosystem service relationships with the Driver-Pressure-State-Impact-Response framework: A case study on Cape Cod, Massachusetts (JOURNAL)
Understanding the effects of environmental management strategies on society and the environment is critical for evaluating their effectiveness but is often impeded by limited data availability. In this article, we present a method that can help scientists to support environmental...
Refugia Research Coalition: A regional-scale approach for connecting refugia science to natural and cultural resource management (PRESENTATION)
Background / question / methods Warmer air and water temperatures, changing precipitation patterns, and altered fire regimes associated with climate change threaten many important natural and cultural resources. Climate change refugia are areas relatively buffered from contempora...
Seagrass Epiphytes as a Nutrient Stressor Indicator: Towards Development of Threshold Values (PRESENTATION)
Epiphytes on seagrasses have been studied for more than 50 years, and proposed as an indicator of anthropogenic nutrient enrichment for over 30 years. Epiphytes have been correlated with seagrass declines, causally related to nutrient additions in both field and mesocosm experim...