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Further Evaluation of Diatom Periphyton as Indicators of Cultivation and Grazing Impairment in Montana Wetlands

As a follow up report to a 1999 study, this report is an analysis of diatom assemblages from 24 sites at two locations in order to evaluate the potential of diatoms as indicators of impairment due to cultivation and grazing.

Appendices to the Bioindicators for Assessing Ecological Integrity of Prairie Wetlands

Bioindicators for Assessing Ecological Integrity of Prairie Wetlands Appendices

EPA Build America, Buy America (BABA)

Build America Buy America (BABA)

Financial Services

Provides links to payment instructions and financial forms and reports for vendors and grant recipients.

EPA Region 7 Underground Injection Control Direct Implementation Documents

Registration/Information forms for shallow injection wells and finalized permits in Region 7 direct implementation areas.

Historic FOIA Logs

EPA FOIA logs for FY2009 to FY2025

EPA's "Call it a Comeback" e-Newsletter

"Call it a Comeback" Newsletters from Administrator Lee Zeldin.

Geospatial Data Download Service

Prepackaged Geospatial Data Download - geospatial information for FRS facilities that have latitude/longitude data. Updated monthly.

Complaints and Petitions for Review

Petition for Review of EPA's final agency action entitled “Repeal of the Clean Power Plan"

ICYMI: Trump EPA Finalizes Approval of North Dakota’s Coal Combustion Residuals Permit Program, Advances Cooperative Federalism

EPA) Administrator Lee Zeldin, alongside North Dakota Governor Kelly Armstrong at the North Dakota state Capitol, approved North Dakota's coal combustion residuals (CCR) program application.

Release Date: November 7, 2025

Request for Correction 10010 Screening-Level Ecological Risk Assessment for Newark Bay Study Area

Request for Correction by Troy Chemical Corporation, Inc., regarding EPA's 2008 Screening-Level Ecological Risk Assessment for the Newark Bay Study Area.

Data

A landing page for EPA data resources. Discover data assets, understand data policy, and how EPA manages and governs data.

AI Use Case Inventory

This page an inventory of EPA Artificial Intelligence systems available to the public web.

EPA Federal Information Systems

Discover EPA systems of record, published notices in the federal register, and privacy impact assessments for all of the information systems in each EPA office.

EPA Issues Additional Decisions on Small Refinery Exemptions

Agency Continues Work to Get Renewable Fuel Standard Program Back on Track

EPA is delivering on President Trump’s promise to restore America’s energy dominance by continuing to process Small Refinery Exemption (SRE) petitions.

Release Date: November 7, 2025

Policy for Creating and Maintaining Internal EPA Mission Support Policy and Procedure

This policy documents the requirements for creating, updating, and maintaining new and existing internal mission support Policy at EPA.

Coordination Procedures between the Scientific Integrity Official and the Office of Inspector General Regarding Scientific Misconduct Allegations

Coordination Procedures between the Scientific Integrity Official and the Office of Inspector General regarding Scientific Misconduct Allegations written March 30, 2015 by the Office of the Science Advisor