Science & Technology
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EPA Green Infrastructure Resources
Because green infrastructure involves many topic areas, this webpage includes a broad range of resources. Each of the topic areas listed below includes a selection of key resources for that topic.
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Air: Fate, Exposure, and Risk Analysis (FERA)
The technical tools found oun this technical air resources website will assist with efforts to evaluate the health risks and environmental effects associated with exposure to specific air pollutants.
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Multi-Agency Radiological Laboratory Analytical Protocols Manual (MARLAP)
The Multi-Agency Radiological Laboratory Analytical Protocols Manual (MARLAP) provides guidance for the planning, implementation and assessment phases of projects that require laboratory analysis of radionuclides.
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Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM)
The Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) provides detailed guidance on how to demonstrate that a site is in compliance with a radiation dose- or risk-based regulation.
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Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM), Proposed Revision 2 for Public Comment
A proposed Revision 2 of the MARSSIM Manual is available for public comment.
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MARSSIM Workgroup Materials
Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) Workgroup materials found on this page include contact information, the Workgroup Charter and key goals
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Subcommittees and Workgroups
List of subcommittee and workgroup members.
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Member and Observer Agencies
List of ISCORS Member and Observer Agencies
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13th Conference on Air Quality Modeling
The 13th Conference on Air Quality Modeling, mandated by Section 320 of the Clean Air Act, held on the EPA RTP Campus from November 14th through 15th, 2023. This is a public hearing on regulatory air quality model and technique development.
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Basic Information about the San Juan Watershed
Links to sections of the San Juan Watershed from EPA's Surf Your Watershed database.
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Initial Long-Term Monitoring in the San Juan Watershed
Monitoring activities in the San Juan Watershed.
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Sulfur Dioxide (SO2) Air Quality Standards - Documents Prior to Review Completed in 2010
Sulfur Dioxide (SO2 Secondary) Air Quality Standards - Documents Prior to Review Completed in 2012
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e-Manifest Rulemakings and Policies
New e-manifest rulemaking page to replace existing basic information page.
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The Hazardous Waste Electronic Manifest (e-Manifest) System
This is the primary hub for those seeking information about the e-Manifest system, its advisory board, and its development. Once the system is complete this area will serve as the portal into the e-Manifest system from EPA webpages.
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Journal Articles Applying National Aquatic Resource Survey Data
The National Aquatic Resource Surveys (NARS) data are being used and applied above and beyond the regional and national assessments. This page includes a list of recent journal articles that reference NARS data.
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Drinking Water Alternate Test Procedure Program
Guidance for the modification or development of drinking water methods for compliance monitoring.
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Methods Approved to Analyze Drinking Water Samples to Ensure Compliance with Regulations
This Website provides a list of approved methods, info for regional/state labs to obtain a copy of the methods approved for compliance monitoring and method-specific contacts.
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Now Available: Latest Update to the TSCA Inventory
Now Available: Latest Update to the TSCA Inventory
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Water Laboratory Alliance Learning Center
WLA Training Center
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EPA Releases Updated 2019 TRI Data
EPA is releasing updated 2019 Toxics Release Inventory (TRI) data, continuing the agency’s commitment to providing the public with important data and information about chemicals in their communities.