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The seasonal occurrence of deep-water hypoxia in western Long Island Sound (LIS) has been documented for decades by water quality cruise surveys and fixed mooring buoys. While previous studies have focused on factors modulating bottom dissolved oxygen (DO) at subtidal timescales,...

Watersheds in the Wisconsin portion of the Lake Superior basin, specifically those in the red clay plains, are susceptible to degraded water quality from eroding stream banks, which can impact in-stream habitat and result in excessive nutrient loading (WDNR 2007a). Watershed cons...

An objective of federal, state, and local environmental management programs is to provide citizens with clean waters and the benefits associated with them. Communicating the importance of clean water to the public is often thought to help promote changes to behaviors and actions ...

EPA is developing new, rapid methods for monitoring water quality at beaches to determine adequacy of water quality for swimming. The methods being developed rely upon quantitive polymerase chain reaction technology. They will permit real time decisions regarding beach closures...

To assess the consequences of nutrient reduction strategies on water quality under climate change, we investigated the long-term dynamics of dissolved oxygen (DO) and pH in Narragansett Bay (NB), a warming urbanized estuary in Rhode Island, where nitrogen loads have declined due ...

Argonne is building an intelligent computer application, the Radiological Recovery Logistics Tool (RRLT), to assist the understanding and allocation of resources for a mitigation and recovery effort. RRLT output will be a list of recommended methods and tools to accomplish the sp...

Contamination of surface waters often leads to drinking water contamination, degradation of aquatic biota and their habitat and ultimately the decline of the quality of life for both humans and animals. Pathogen contamination, as determined by bacterial fecal indicators, is the l...

Lead service lines (LSL) represent the greatest source of lead (Pb) in drinking water. Identifying LSLs can be challenging, and recent service line (SL) material surveys in Michigan, Illinois, Wisconsin and Indiana found that an average 16% of SLs in these states are unknown and ...

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...

The National Aquatic Resource Surveys (NARS) program, a collaboration among United States Environmental Protection Agency (US EPA) Office of Water, Office of Research and Development (ORD), and states and tribes, assesses progress towards the objective of the Clean Water Act thro...

Diatoms and soft algae have been collected by state monitoring programs across the United States to assess the biological condition of lotic and lentic water bodies. Some of the state programs have long-term records (i.e., decades) of algal taxonomic data. Over time, changes in l...

Taxonomic data are the foundation of bioassessment and much basic and applied research. Difficulty in morphological species identification, evolving and varying taxon concepts, and nomenclatural changes can lead to significant inconsistencies in taxonomic datasets across analysts...

Presentation about research using trail cameras as input data to a neural network machine learning model to inform on streamflow.

Drinking water nitrate contamination is a significant economic and public health concern in The Great Plains, with few tested best practices for improving source water quality. This project seeks to establish a monitoring framework for quantifying the benefits of soil health prac...

Although the offshore water of Lake Michigan has been below the Great Lakes Water Quality Agreement (GLWQA) total phosphorus (TP) spring target concentration of 7 µg L−1 for several decades, higher TP concentrations occur in the nearshore, contributing to the res...

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...

Premise Plumbing Modeling - Demonstrating effectiveness of new modeling for premise plumbing systems

Many aqueous film forming foam (AFFF) delivery systems in aircraft hangars and firefighting vehicles may require thorough cleaning to avoid ongoing environmental impacts from residual per- and polyfluoroalkyl substances (PFAS) within those systems. Though replacement AFFF formula...

Many aqueous film forming foam (AFFF) delivery systems in aircraft hangars and firefighting vehicles may require thorough cleaning to avoid ongoing environmental impacts from residual per- and polyfluoroalkyl substances (PFAS) within those systems. Though replacement AFFF formula...

Nitrogen management in Long Island Sound (LIS) has reduced N loading and the extent of hypoxia over the last 2 decades. To support communication around successful remediation of hypoxia and the remaining challenges of N management, we are analyzing 30 years of water quality data ...

We are currently developing a fine-resolution spatial stream network (SSN) model for the Penobscot River Basin in Maine using continuous temperature time series collected by members of the Maine Temperature Working Group.  Stations for 455 sites have been snapped to the NHDP...

Onsite wastewater treatment systems are a major source of excess nutrients and co-pollutants in groundwater. The high density of septic systems in New England’s coastal watersheds has degraded the quality of drinking and recreational freshwater resources and led to collapse...

The Regional Monitoring Networks (RMNs) are a collaborative, volunteer effort to collect comparable long-term monitoring data at targeted sites nationwide to detect changes over time. Six Northeast states have participated in the stream RMN since it was first piloted in the North...

Reduction of total phosphorus (TP) loads has long been a management focus of Chesapeake Bay restoration, but riverine monitoring stations have shown mixed temporal trends. To better understand the regional patterns and drivers of TP trends across the Bay watershed, we compiled an...

Combustion of mixed materials during open air burning of refuse and housefires produces emissions that worsen air and water quality and cause adverse health effects. The purpose of this study was to assess the irritant potential of extractable organic material of smoke condensate...