Science & Technology
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EPA Response to Request for Reconsideration 12004A, Regarding Drinking Water: Regulatory Determination on Perchlorate
EPA Response to RFR (03/27/2014)
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Learn more about Threatened and Endangered Species
Description of Endangered Species for the kids pages.
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Outreach Materials from the National Aquatic Resource Surveys
Communication Materials associated with the National Aquatic Resource Surveys
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CHAD-2000
Detailed data on human behavior from 19 studies has been compiled into the Consolidated Human Activity Database (CHAD), enabling researchers to examine specific population groups for unique activity patterns that influence overall exposure to chemicals.
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Update to the Community-Focused Exposure and Risk Screening Tool (C-FERST)
EPA scientists are working partners to design and test the Community-Focused Exposure and Risk Screening Tool (C-FERST), a community mapping, information access, and assessment tool to help assess risk and assist in decision making with communities
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Residential Wood Combustion Session (2023 EIC)
Presentations/papers given at the Residential Wood Combustion session of the 2023 IEIC
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Beta SDAMs
Data-driven regionally specific beta methods were developed using the first year of field sampling data from each region. After additional data collection and analysis, agency and user feedback, the beta methods were replaced with final Regional SDAMs
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Random Forest Modeling
A machine learning method that utilizes many decision trees, collectively called a forest, to identify the set of indicators that make the most accurate prediction. A unique forest is used for each Regional SDAM to predict the streamflow classification
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Pollinator Projects at EPA Facilities
An image gallery showing pollinators and pollinator gardens at EPA facilities
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Air Sensors Data Analysis Training
Landing page for the Air Sensors Training Analysis webinar series
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Vision, Mission & Principles of the Urban Waters Federal Partnership
Overview of the vision, misson and guiding principles of the Urban Waters Federal Partnership, including signatures of government partners
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South Platte River Urban Waters Partnership Brochure
A brochure providing information about the South Platte Urban Waters Partnership and how to join.
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Greater Philadelphia Area/Delaware River February 2015 Webinar Agenda
Resource documents and links regarding water quality in the Philadelphia and Delaware River areas.
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Greater Philadelphia Area/Delaware River Watershed Kickoff Webinar Agenda October 2014
Resource documents and links regarding water quality in the Philadelphia and Delaware River areas.
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Gunpowder-Patapsco Watershed Map
A map of the Baltimore Waters Urban Partnership
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datatables test
This interactive resource makes it easy to search all 300+ Data Layers and access their fact sheets.
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Downloading and Installing Estuary Data Mapper (EDM)
Links to the latest build of Estuary Data Mapper (EDM) for various operating systems + download instructions
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Estuary Data Mapper (EDM)
Estuary Data Mapper is a tool for geospatial data discovery, visualization, and data download for any of the approximately 2,000 estuaries and associated watersheds in along the five US coastal regions
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Estuary Data Mapper (EDM) Release History
The Release Notes page summarizes new or changed features/data for each Estuary Data Mapper (EDM) public release.
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Factsheet about Anacostia's Great Outdoors
In partnership with the federal government, the District of
Columbia and State of Maryland are working to restore the
Anacostia River and provide safe and convenient means for
people to access the Anacostia River and enjoy the outdoors.