Data and Tools
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Mississippi Band of Choctaw Indians Treatment in Similar Manner as State CAA Application
An application for treatment as an affected state for purposes of sections of the Clean Air Act
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Finding and Managing Your Uploaded Files
Files, or media, may include images, audio, video, and documents. Learn how to locate and manage files you have previously uploaded to the WebCMS using the Media tab.
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Pesticide Use Sites and Major Use Patterns
Information on pesticide use sites and pesticide major use patterns including corresponding pesticide use sites and crop groups.
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Hydrocarbon Spill Screening Model (HSSM) en Español
HSSM simula el flujo de la fase LNAPL (líquidos livianos en fase no acuosa) y el transporte de un componente químico por estos líquidos desde la superficie hasta las napas freáticas.
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4 - Explore Settings, Channels, and Activities
Information related to Develop Risk Communication Programs for Fish and Shellfish Consumption Advisories - 4 - Explore Settings, Channels, and Activities
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Ideas for Reducing Evaluation Costs
Ideas for Reducing Evaluation Costs
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Examples for Assessing Program Effectiveness Through Evaluation
Information related to Develop Risk Communication Programs for Fish and Shellfish Consumption Advisories - Examples for Assessing Program Effectiveness Through Evaluation
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Case Study - Disseminating Health Information on Hazards of Prenatal Mercury Exposure
Information related to Develop Risk Communication Programs for Fish and Shellfish Consumption Advisories - Case Study - Disseminating Health Information on Hazards of Prenatal Mercury Exposure
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Greenhouse Gas Equivalencies Calculator - Revision History
Describes the updates made to the Greenhouse Gas Equivalencies Calculator since it was first posted on EPA’s website in February 2008.
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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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Radiochemical Sample Collection Information - Query Results
SCID Radiochemical Query Results Page
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Pathogen Sample Collection Information - Query Results
SCID Pathigen Query Results Page
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Biotoxin Sample Collection Information - Query Results
SCID Biotoxin Query Results Page
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Chemical Sample Collection Information - Query Results
SCID Chemical Query Results Page.
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Technical Support for Numeric Nutrient Water Quality Criteria Development
Technical Support for Numeric Nutrient Criteria Development
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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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Survey 123 Templates for Regional SDAMs
Survey 123 templates support the collection of field data for the Regional SDAMs. Users with a Survey123 license may download these templates to create their own electronic forms for Regional SDAM data collection, if desired.
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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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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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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.