Science & Technology
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STIR Version 1.0 User's Guide for Pesticide Inhalation Risk
STIR estimates inhalation-type exposure based on pesticide-specific information. It also estimates spray droplet exposure using the application method and rate and then compares these exposure estimates to avian and mammalian toxicity data.
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Cross-Agency Laboratory Activities
A page describing the different aspects of Cross Agency Lab Activities, including sample analysis, fieldwork, technical assistance, quality assurance, and training and education.
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Wadeable Streams Assessment
The Wadeable Streams Assessment (WSA) is a first-ever statistically-valid survey of the biological condition of small streams throughout the U.S.
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Partners in the National Aquatic Resource Surveys
EPA is working with state, tribal, and other federal agencies to implement the National Aquatic Resource Surveys (NARS). States and tribes participate in these surveys through their Clean Water Act Section 106 Monitoring Initiative grants.
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Prioritization of Data Sources for Chronic Exposure
Prioritization of Data Sources for Chronic Exposure
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Protect Coasts
Information and resources on how green infrastructure can help protect coasts.
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Frequent Questions about PFAS Methods for NPDES Permits
Frequent questions about analytical methods to detect the presence of PFAS compounds applicable to NPDES permits
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CWA Analytical Methods for Per- and Polyfluorinated Alkyl Substances (PFAS)
Description of current joint effort between EPA and the Department of Defense to develop analytical methods to detect the presence of PFAS compounds in various environmental media.
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Cornell Mixing Zone Expert System
This page provides an overview Cornell Mixing Zone Expert System water quality modeling and decision support system designed for environmental impact assessment of mixing zones resulting from wastewater discharge from point sources
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EPA Federal Facilities Forum Issue Paper: Site Characterization for Munitions Constituents
The nature of energetic residues on munitions sites, strategies that provide representative samples, and analytical methods developed to characterize those samples.
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Working Paper: A Stated Preference Study of the Chesapeake Bay and Watershed Lakes
This is a working paper titled "A Stated Preference Study of the Chesapeake Bay and Watershed Lakes"
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Working Paper: Do Housing Values Respond to Underground Storage Tank Releases? Evidence from High-Profile Cases across the United States
This is a working paper titled "Do Housing Values Respond to Underground Storage Tank Releases? Evidence from High-Profile Cases across the United States"
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Quality System and Technical Procedures for LSASD Field Branches
Contains numerous links to document pages on procedures for field sampling, field measurement, and quality systems as well as guidance documents
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TMDL Support Documents
A collection of TMDL information and support documents.
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Reports and Resources about Impaired Waters and TMDLs
A collection of reports and resources for each step in the impaired waters restoration pipeline.
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Hazardous Waste Electronic Manifest System (e-Manifest) Advisory Board
This page is all about the e-manifest Advisory board, formed under the Federal Advisory Committee Act, and part of the EPA's e-manifest development process. Here you can learn about the members and their meetings.
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Third External Peer Review of the CMAQ System
Read the third peer review of CMAQ and see the responses by the developers.
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Fifth External Peer Review of the CMAQ System
Read the fifth peer review of the CMAQ models and the responses from the CMAQ developers.
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EPA Nationwide Laboratory Assessment Report of Findings
Environmental Protection Agency Nationwide Laboratory Assessment Report of Findings
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Meeting Minutes for October 2010 HSRB Meeting
Meeting Minutes for October 2010 HSRB Meeting