Science & Technology

Ecological Condition

The ROE is divided into 5 themes: Air, Water, Land, Human Exposure and Health and Ecological Condition. From these themes, the report indicators address fundamental questions that the ROE attempts to answer. For ecological condition there are 5 questions.

Biodiversity and Ecosystem Health

This page explains the connection of the ROE indicators to the chapter themes. This page includes the ROE questions, lists of the related indicators, and additional background information.

Learn About the ROE Program

This page covers the basic information about this web site and the report on the environment.

Vehicle Emissions California Waivers and Authorizations

This page lists Federal Register Notices concerning California Waivers originated by the Office of Transportation and Air Quality (OTAQ).

Guidance on Control Strategies for State and Local Agencies

Guidance and strategies are offered for reducing vehicle air pollution, including ozone or smog-forming pollutants, particulate matter and other emissions that pose public health and air quality concerns.

Estimating Emission Reductions from Travel Efficiency Strategies

Resources for state and local planners interested in estimating on-road greenhouse gas emissions and assessing the impact of specific travel efficiency strategies.

Past Lake Pontchartrain Basin Restoration Program Funding Opportunities

Request for Proposals FY21-22 Base PRP Funds

2026 Regional, State, and Local Dispersion Modelers' Workshop

The 2026 Regional, State, and Local (RSL) Dispersion Modelers' Workshop is being held July 14 to July 16, 2026. This page provides information on the agenda and registration for the RSL Modelers' Workshop.

Air Modeling - Conferences and Workshops

These conferences and workshops involve air quality modeling and related topics/areas.

Report: Audit of the EPA’s Fiscal Year 2024 Compliance with the Payment Integrity Information Act of 2019

Abandoned Mine Lands: Technical Resources

Mine site resources on contamination assessment and characterization, waste types, cleanup technologies, modeling and site-specific case studies.

Battery Collection Tip Sheet: End-of-Life Household Small Format Damaged and Defective Batteries

Learn the type of management tools you can use for assessment is sustainable electronics.

NAMs Training Tool Tips

Page housing links to training Tool Tips videos.

21st Annual EPA Drinking Water Workshop: Small System Challenges and Solutions

Summary of the 2024 DW workshop and history of past workshops.

Biological Response Report

Analysis of the effects of Gold King Mine (GKM) release on select biological organisms living in the Animas and San Juan rivers.

Basic Page - Proficient Example

Example page of a basic page made with proficient skills. This example page is used in for the WebCMS Training Skills Challenge

Audit of EPA Water Earmark Grants for Fiscal Years 2022 and 2023

Air Emissions Inventories

This site provides access to emissions data, regulations and guidance, electronic system access, resources and tools to support trends analysis, regional, and local scale air quality modeling, regulatory impact assessments.

MARLAP Manual and Supporting Documents

MARLAP provides guidance for the planning, implementation and assessment phases of projects that require laboratory analysis of radionuclides.

WhAEM2000 BBM Files - Foss Reservoir, Oklahoma

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Foss Reservoir Quadrangle, Oklahoma. Files serve as geographic basis for groundwater modeling.