Science & Technology
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User's Manual for OPPT's Risk-Screening Environmental Indicators Model: Version 1.0, November 1999
This manual describes the Indicator methodology, operations of the computer model and the step-by-step processes to perform them, and pre-run queries available with the model.
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User's Manual for RSEI Model Version 2.1, December 2002
This manual accompanies version 2.1 of the Risk-Screening Environmental Indicators model.
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User's Manual for RSEI Model Version 2.1.2, August 2004
This manual accompanies version 2.1.2 of the Risk-Screening Environmental Indicators model.
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User's Manual for RSEI Model Version 2.1.5, September 2007
This manual accompanies version 2.1.5 of the Risk-Screening Environmental Indicators model
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Analyses Performed for the Risk-Screening Environmental Indicators
Describes analyses performed as part of the Risk-Screening Environmental Indicators screening tool
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TRI Relative Risk-Based Environmental Indicators: Summary of Comments Received on the Draft 1992 Methodology and Responses to Comment, May 1997
This document contains general comments on the original Indicators methodology, the toxicity weighting, the chronic ecological indicator and other issues. OPPT's responses and proposed changes are also discussed.
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Regional SDAMs FAQs
Answers to some of the most frequently asked questions about Regional SDAMs and how to apply them in the field are listed.
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Sample Collection Information Documents (SCID)
Individuals responsible for collecting samples following an environmental contamination incident, can use this information to collect samples for analysis using the analytical methods listed in EPA's SAM
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Safety Practices for On-Farm Anaerobic Digestion Systems
This document helps identify the major hazards associated with an AD facility and outline basic practices that will help maintain a safe and successful working environment.
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Using Biochemical Methane Potentials and Anaerobic Toxicity Assays
Presentation by Lara Moody, Iowa State University, at the Fifth AgSTAR National Conference, regarding using biochemical methane potential (BMP) and anaerobic toxicity assays (ATA).
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Attracting Institutional and Impact Investors
A power point presentation detailing the process to attract strong investors in the domestic wastewater market
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Programmatic Information on Numeric Nutrient Water Quality Criteria
An overview of what EPA is doing to combat the nitrogen and phosphorus pollution problems in the U.S.
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EPA Collaboration to Validate Satellite Air Quality Measurements
EPA scientists measured a combination of pollutants and meteorological variables across the Long Island Sound region as part of a multi-agency research campaign involving the NASA, NOAA, and state partners.
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Regulatory Determinations for Pollutants in Biosolids
Information on the regulatory determinations for pollutants found in biosolids and the limits associated with those pollutants.
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Learn about Regional SDAMs
Streamflow Duration Assessment Methods are rapid field methods using hydrological, geomorphological, and biological indicators, observable in one site visit, to classify streamflow duration as perennial, intermittent, or ephemeral at the stream reach scale
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Using Spectral Flow Cytometry to Combat Harmful Algal Blooms in Drinking Water
EPA researchers are developing new methods to evaluate the treatment of algae and cyanobacteria in drinking water systems. Learn more in this article.
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December 13, 2018 Meeting of the Human Studies Review Board
December 13, 2018 Meeting of the Human Studies Review Board
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June 14, 2018 Meeting of the Human Studies Review Board
April 24-26, 2018 Meeting of the Human Studies Review Board
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April 24-26, 2018 Meeting of the Human Studies Review Board
April 24-26, 2018 Meeting of the Human Studies Review Board
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Title V Program Evaluations in Region 2-U.S.Virgin Islands
Final Evaluation Reports for U.S.Virgin Islands