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Water Research Products in the Science Inventory

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Records 1 to 25 of 17936

Monitoring Storm Water Flow via VIPER - presentation
(PRESENTATION) [Presented : Nov 05, 2021]
The continued development of real time stormwater monitoring has allowed for faster response as well as better containment and mitigation efforts concerning potential contamination events. The purpose of this experiment is to develop a system of deployable sensor stations that wi...
Characterization of Per- and Polyfluoroalkyl Substances (PFAS) and Other Constituents in MSW Landfill Leachate from Puerto Rico
(JOURNAL) [Published : Jun 01, 2024]
Extensive research in recent years has reported higher per- and polyfluoroalkyl substance (PFAS) concentrations in municipal solid waste (MSW) landfill leachate than other municipal wastewaters, including multiple studies of leachate from MSW landfills in the United States. Becau...
Application of the US-EPA’s HAWQS model to predict future climate impacts on hydrological processes
(JOURNAL) [Published : Oct 02, 2023]
Climate change could add a variety of uncertainties to hydrological processes and water resources. Very limited efforts have been devoted to applying the US-EPA (Environmental Protection Agency)’s Hydrologic and Water Quality System (HAWQS) model for predicting climate chan...
Microbial functionalities and immobilization of environmental lead: Biogeochemical and molecular mechanisms and implications for bioremediation
(JOURNAL) [Published : Sep 05, 2023]
The increasing environmental and human health concerns about lead in the environment have stimulated scientists to search for microbial processes as innovative bioremediation strategies for a suite of different contaminated media. In this paper, we provide a compressive synthesis...
River Basin Export Reduction Optimization Support Tool (RBEROSTv2) Version 2: Demo and Next Steps
(PRESENTATION) [Presented : Jun 25, 2024]
•       An updated version (2) of EPA’s River Basin Export Reduction Optimization Support Tool (RBEROST) has been developed to provide nutrient management strategies for the Puget Sound Basin.  RBEROST is an R-based tool that sets up ...
Delivering Water Quality Monitoring Data to the Public: Lessons Learned from a Pilot in Baltimore Harbor
(PUBLISHED REPORT) [Published : Jun 13, 2024]
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 ...
Distribution of Cyanobacteria and Microcystin in Lakes of the U.S. Driven by Combination of Lake, Watershed, and Climate Characteristics
(PRESENTATION) [Presented : Jun 07, 2024]
With increasing concerns about freshwater cyanobacteria blooms, there is a need to identify which waterbodies are at risk for developing these blooms, especially those that produce cyanotoxins. To address this concern, we developed spatial statistical models using the US National...
Quantifying Error Introduced by Spatiotemporal Mismatches in Satellite and In-Situ Data Acquisition in Ocean Color Algorithm Development.
(PRESENTATION) [Presented : Jun 07, 2024]
In-situ measurements of optically active indicators of water quality are used to develop and validate spatiotemporally robust and cost-effective satellite remote sensing algorithms. Outputs from water quality algorithms routinely inform policymaker decisions that impact environme...
Calibration using R-programming and parallel processing at the HUC12 subbasin scale in the Mid-Atlantic region: Development of national SWAT hydrologic calibration
(JOURNAL) [Published : May 31, 2024]
The first phase of a national scale Soil and Water Assessment Tool (SWAT) model calibration effort at the HUC12 (Hydrologic Unit Code 12) watershed scale was demonstrated over the Mid-Atlantic Region (R02), consisting of 3036 HUC12 subbasins. An R-programming based tool was devel...
Distribution of Antibiotic Resistance in a Mixed-Use Watershed and the Impact of Wastewater Treatment Plants on Antibiotic Resistance in Surface Water
(JOURNAL) [Published : Nov 02, 2023]
The aquatic environment has been recognized as a source of antibiotic resistance (AR) that factors into the One Health approach to combat AR. To provide much needed data on AR in the environment, a comprehensive survey of antibiotic-resistant bacteria (ARB), antibiotic resistance...
Small Drinking Water Systems Research and Outreach
(PRESENTATION) [Presented : Oct 29, 2014]
This webinar was presented as part of the EPA-ORD Water Research webinar series on October 29, 2014. Dr. Tom Speth and Dr. Darren Lytle provided an overview of EPA’s small-system’s research and outreach efforts to communities, including topics like harmful algal blooms treatment,...
Nitrogen Cycling Genes and Biogeochemistry of Three Small Eutrophic Lakes
(PRESENTATION) [Presented : Jun 24, 2019]
Our previous work has shown that the Jackson Lakes, in the Bayou Chico Watershed in NW FL, USA, are biogeochemically different and have different microbial communities, despite their proximity and common origin. All three lakes are polymictic, but the NE lake is fully freshwater,...
Analysis of microcystins in alum water treatment sludges: holding times, temperatures, linearity of response, and sensitivity to pre-coagulation cell titers
(JOURNAL) [Published : May 09, 2024]
The ELISA assay is a potential tool to screen for dissolved or cell bound microcystins in drinking water treatment plant sludges.  In order to evaluate this potential more thoroughly, a series of experiments were performed to: (1) evaluate the impacts of storage times and te...
Impact of water quality and operational factors on microcystin removal by powdered activated carbon
(JOURNAL) [Published : May 31, 2024]
A financially and technically accessible method for screening powdered activated carbons for control of HAB toxins in water treatment.
A workflow for the detection of Vibrio spp. in a tropical estuarine environment via enrichment dependent high throughput sequencing and qPCR methods
(PRESENTATION) [Presented : Jun 17, 2024]
Identification of potential pathogens that present risks to human health in recreational waters is necessary to advance in-depth water quality assessments. Despite the application of PCR techniques for environmental pathogen detection, only limited information is usually availabl...
Detection of Emergent and Opportunistic Pathogens in the San Juan Bay Estuary system in Puerto Rico
(PRESENTATION) [Presented : Jun 17, 2024]
The San Juan Bay Estuary (SJBE) is an interconnected system of streams, bays, lagoons, and canals located in a highly urbanized area in San Juan, Puerto Rico. Due to the rapid rate of urbanization, some communities across the SJBE have limited access to or are impacted by failure...
A Bayesian spatiotemporal model evaluation of forecasting cyanobacterial harmful algal bloom events.
(PRESENTATION) [Presented : Jun 07, 2024]
The U.S. Harmful Algal Bloom and Hypoxia Research Control Act calls for robust approaches to forecasting cyanobacterial harmful algal blooms (cyanoHABs). Accurate forecasting technology could save local communities healthcare costs through the early detection of cyanoHABs and the...
Human Gut-Associated ΦB124-14 Bacteriophage-Like Quantitative Real-Time PCR Assays for Sewage Measurement
(PRESENTATION) [Presented : Jun 17, 2024]
The ability to identify human sewage in environmental, municipal storm system drains, and other waste flows is important to protect public health and natural water resources.  A recent study reports the complete genome sequence of ΦB124-14, a bacteriophage capable of inf...
Characterizing the Biofilm of Microplastics Incubated in River Water and Treated Wastewater Effluent
(PRESENTATION) [Presented : Jun 17, 2024]
Microplastics (MPs) in aquatic environments accumulate a biofilm known as the plastisphere, a microbial community unique from that of the surrounding water and from biofilms that form on natural substrates. The plastisphere is known to accumulate pathogens and bacteria with antib...
Microelectrode Investigation of Iron and Copper Surfaces Aged in Presence of Monochloramine
(JOURNAL) [Published : May 31, 2024]
Ductile iron and copper coupons were aged 137–189 days and 2 days, respectively, with 2 mg Cl2·L–1 monochloramine under four water chemistries (pH 7 or 9 and 0 or 3 mg·L–1 orthophosphate). Subsequently, microelectrode profiles of monochloramine con...
Expanding the Application of Sentinel-2 Chlorophyll Monitoring across United States Lakes
(JOURNAL) [Published : May 30, 2024]
Eutrophication of inland lakes poses various societal and ecological threats, making water quality monitoring crucial. Satellites provide a comprehensive and cost-effective supplement to traditional in situ sampling. The Sentinel-2 MultiSpectral Instrument (S2 MSI) offers unique ...
An evaluation of properly operated NSF/ANSI-53 Pb certified drinking water filters in Benton Harbor, MI
(JOURNAL) [Published : Feb 01, 2024]
Communities across the United States and particularly in the Midwest continue to grapple with the complications associated with aging infrastructure. This includes the presence of lead (Pb)-bearing plumbing components such as lead service lines (LSLs), downstream galvanized iron ...
Evaluation of Distribution System Water Quality During a Free Chlorine Conversion
(JOURNAL) [Published : May 31, 2024]
Chloraminated drinking water systems commonly implement a temporary free chlorine conversion (FCC) to control or minimize nitrification in the distribution system (DS), but unintended water quality changes may occur during the FCC, including increased disinfection byproducts (DBP...
Quantitative fecal source characterization of urban municipal storm sewer system outfall ‘wet’ and ‘dry’ weather discharges
(JOURNAL) [To be published : Aug 01, 2024]
Urban areas are built environments containing substantial amounts of impervious surfaces (e.g., streets, sidewalks, roof tops). These areas often include elaborately engineered drainage networks designed to collect, transport, and discharge untreated stormwater into local surface...
Comparison of DNA-based Detection Methods for Wild Pigs in the San Juan Bay Estuary Area
(PRESENTATION) [Presented : Jun 17, 2024]
Wild pigs are an invasive species found globally that pose significant economic impact and a serious risk to local ecosystems, agriculture, and public health. Fecal contamination of water is one of these public health concerns as wild pigs have been shown to carry pathogenic ente...