Science & Technology
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About the Chemical Characterization and Exposure Division
Mission, organization, and contact information for EPA's Chemical Characterization and Exposure Division within the Center for Computational Toxicology and Exposure in the Office of Research and Development
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Natural Channel Design Review Checklist under CWA Section 404
This document presents a brief description of the checklist items by the following sections: Watershed and Geomorphic Assessment, Preliminary Design, Final Design, and Maintenance and Monitoring Plans.
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Anaerobic System Design and Technology
Describes the anaerobic digestion process and the benefits of anaerobic digestion. Anaerobic digestion is the process through which bacteria break down organic matter without oxygen.
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Initial Project Checklist
Series of questions to find out if your facility may be a good candidate for anaerobic digestion.
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EPA Outreach on HABs
Information related to the EPA Outreach on HABs
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BASINS Version History
Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) version history shows the new features and changes to BASINS
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Columbia River Cold Water Refuges Plan
EPA's Columbia River Cold Water Refuges Plan to support salmon and steelhead migration.
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BASINS User Information and Guidance
This page provides links to guidance on how to use BASINS, including the User’s Manual, tutorials and training, technical notes, case studies, and publications that highlight the use of BASINS in various watershed analyses.
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Ecological Exposure to Contaminants
This page explains the connection of the ROE indicators to the chapter themes. This page includes the ROE questions, lists of the related indicators, and additional background information.
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Recreational Waters
This page explains the connection of the ROE indicators to the chapter themes. This page includes the ROE questions, lists of the related indicators, and additional background information.
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WATERS Program Data
GIS from the Reach Address Database (RAD) must be joined/linked to corresponding program attributes using the below "Relational Key" information.
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EPA Method 5030C (SW-846): Purge-and-Trap for Aqueous Samples
SAM lists this method for preparation of water samples to be analyzed for select volatile organic compounds, using purge-and-trap GC.
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10th Annual P3 Grant Recipients
EPA's P3 – People, Prosperity, and the Planet Program 2013/2014 P3 Grant Recipients
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The Billion Bottle Project
Learn about a P3 project with the goal of using sunlight and a visual confirmation system to provide people reliable, inexpensive, and sustainable drinking water.
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Highlights from the P3 Program
Learn about some recent highlights from EPA's P3 program and read success stories from the student teams.
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Learn About P3 Program
Basic information about EPA's P3 Program
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19th Annual P3 Grant Recipients
EPA's P3 – People, Prosperity, and the Planet Program 2022/2023 P3 Grant Recipients
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March 15, 2018 Meeting of the Human Studies Review Board
March 15, 2018 Meeting of the Human Studies Review Board
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January 23-24, 2018 Meeting of the Human Studies Review Board
January 23-24, 2018 Meeting of the Human Studies Review Board
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January 26, 2021, Meeting of the Human Studies Review Board
Agenda and supporting documents for the January 26, 2021 meeting of the Human Studies Review Board