Science & Technology
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Summary of California’s Water Reuse Guideline or Regulation for Indirect Potable Water Reuse
Summary of California’s indirect potable water reuse regulation, including specifications.
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Summary of California’s Water Reuse Guideline or Regulation for Direct Potable Water Reuse
Summary of California’s direct potable water reuse regulation, including specifications.
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California Indirect and Direct Potable Water Reuse Summaries
Directory to summaries of California’s regulations for indirect and direct potable water reuse.
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bloomWatch
Download the bloomWatch app to report suspected harmful algal blooms in your community’s water bodies.
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Innovation and Teamwork to Address PFAS Treatment
EPA’s PFAS Innovative Treatment Team is a dedicated, full-time team that brings together a wide range of multi-disciplined researchers
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Understanding How Pesticide Exposure Affects Honey Bee Colonies
EPA published Sensitivity analyses for simulating pesticide impacts on honey bee colonies, which builds upon a recently-developed model to provide scientists with a clearer understanding of how pesticide exposure affects honey bees.
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EPA and Partners Bring Custom-Designed Cleaner-Burning Stoves to Navajo Homes
More than 60% of Navajo households use wood stoves for heat. The stoves are often very old, inefficient, and poorly vented, leading to high levels of indoor and outdoor air pollution and increased risk of fires.
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Restoring a Unique Area in Northwest Indiana
The Grand Calumet River, flowing mainly through northwestern Indiana, is in one of the most heavily industrialized areas in the United States. The river has been recognized as an Area of Concern since the 1980s largely due to legacy pollutants.
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Improving Public Access to EPA’s Science
EPA has recently improved two online resources for accessing the science produced by EPA scientists and engineers.
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From East to West, EnviroAtlas Builds Bridges by Making Data Accessible
New fine-scale environmental and ecosystem services data are available for LA, DC, and St. Louis through EPA’s EnviroAtlas.
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Evaluation of Residual Efficacy against Viruses on Surfaces Test Results March 8, 2021
Update to the long lasting disinfection research on SARS-CoV-2. This research discusses residual disinfectants.
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Pilot Study for Conducting A Mercury Total Maximum Daily Load Analysis for an Atmospherically Derived Pollutant in Devil's Lake, Wisconsin
The document is the final report of the pilot study to investigate the relationship between air emissions of mercury and water quality impacts.
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Evaluation of Sediment Transport Data for Clean Sediment TMDLs
The report evaluates sediment transport data for clean sediment TMDLs.
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Innovative TMDLs using Impervious Cover
Three states in EPA Region 1 have developed TMDLs using impervious cover and flow as surrogates for stormwater-source pollutants in streams listed for biological impairment.
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Upper Pine Lake, Iowa TMDL
Algae TMDL and water quality improvement plan for Upper Pine Lake, Iowa.
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Rio Hondo TMDL
The document details the nutrients, turbidity and dissolved oxygen TMDL for Rio Hondo.
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National Association of Counties "Stormwater Runoff for Counties" Webinar
Presentations and a transcript of a "Stormwater Runoff for Counties" webinar.
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Total Maximum Daily Loads with Stormwater Sources: A Summary of 17 TMDLs
A summary of 17 TMDLs that have been developed for stormwater-source pollutants in 16 states, representing a range of pollutants, models used, and different allocation and implementation methods.
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Lake Thunderbird TMDL
The document details the nutrients, turbidity and dissolved oxygen TMDL for Lake Thunderbird.
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TMDL Model Evaluation and Research Needs (2005)
The document provides a comprehensive review of available models for developing TMDLs.