Data and Tools
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AQS Memos - Monitoring and Policy
AQS Monitoring and Policy
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Frequent Questions
AQS Tips and FAQs used to resolve AQS issues
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What do I do when I receive the error "Sample duration cannot change within a calendar year"?
When the need to change sample duration at a monitor arises a user should create a new POC with the new sample duration. By adding a new POC and this will allow for better understanding of what is going on at the site during any analysis. EPA utilizes the POC…
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Cost Estimates of Studies Required for Pesticide Registration
EPA is making the database of test costs publicly available on the OPP's
Minor Use Pesticide Registration webpage. -
UEV Library
The Unit Emergy Value (UEV) Library is a simple web-based tool for assessing resource use in elementary flows and storages.
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GHGRP 2021: Supplier Highlights
Fuel and industrial GHG supplier highlights of 2021 emissions of greenhouse gases in EPA's Greenhouse Gas Reporting Program.
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AQUATOX 3.1 Fact Sheet
AQUATOX Release 3.1 includes numerous enhancements designed to improve model performance, more closely match data requirements with generally available data, improve data manipulation and analysis, and increase user friendliness.
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Guidance for Email Transmittal of Air Permit Documents from Louisiana sources to R6AirPermitsLa@epa.gov
Provides email subject text and file naming conventions for people sending air permit related information to EPA Region 6 for sources located in Louisiana
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AQUATOX Release 3.2 Fact Sheet
AQUATOX Release 3.2 was designed to extend the existing AQUATOX estuarine version to include improved capabilities for situations encountered in the nearshore marine environment. Several changes were required to model food webs in the marine environment.
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Wetlands Programs Adopted by States and Tribes and Analysis of Core Components
Information about State, Tribal and Local Initiatives
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How Do I Develop a Wetlands Regulatory Program?
Information on how to develop a regulatory program and how to implement it
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How Do I Develop a Wetlands Monitoring Program?
Information on how to develop a monitoring program
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RSEI and NATA
A summary comparison of RSEI and the National Air Toxics Assessment (NATA)
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Sediment Oxygen Demand
Field Branches Quality System and Technical Procedures
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Field Specific Conductance
Field Branches Quality System and Technical Procedures
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Procedures about Global Positioning System for the Laboratory Services and Applied Science Division
Field Branches Quality System and Technical Procedures
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Procedures for Measuring Wastewater Flow
Field Branches Quality System and Technical Procedures
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Emerging Viral Pathogen Claims for SARS-CoV-2: Submission Information for Registrants
Emerging Viral Pathogen Claim Submission Information for Registrants information. List N: Disinfectants for use against SARS CoV 2 that causes CoVID 19
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Manufacturer How-To Guide
This page is intended to help small or medium-sized manufacturers navigate the E3 assessment process.
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E3 Supply Chain How-To Guide
Key steps for large manufacturers to initiate an E3 project for their supply chain, including resources for recruiting suppliers and recognizing supplier achievements.