Learn the Issues

EPA Approved St Regis Mohawk Regulations

How Do I Report a Suspected Violation under CWA Section 404?

Information for the public on how to report a suspected wetland (section 404) violation.

Visibility - Regional Planning Organizations

Target Setting

EPA provides tools and recognition for companies setting aggressive GHG reduction goals, which can galvanize reduction efforts at a company and often leads to the identification of many additional reduction opportunities.

Statoil Outer Continental Shelf Air Permit Documents

Outer Continental Shelf(OCS) Air Permit Modification, OCS-EPA-R4012-M1, for Statoil Drilling and Exploration Activities in the DeSoto Canyon

North Atlantic Coastal Wetland Review

A regional review of North Atlantic coastal wetlands with emphasis on threats, strategies to reduce losses, and information gaps.

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.

Developing a State or Tribal Wetland Program Plan

Information about Core Elements Framework (CEF) of a state or tribal wetland program

IIJA SRF Q's and A's

Infrastructure Investment and Jobs Act (IIJA) State Revolving Fund (SRF) Questions and Answers

The Story of Story Mill-A Montana Community Working to Restore Wetlands

Story Mill, a 55-acre site on the outskirts of Bozeman, Montana, has undergone several transformations in recent history. The place is virtually a “mill of stories” with respect to land use, but originally it was a wetland.

California Clean Air Technology Initiative

The California Clean Air Technology Initiative is a partnership to develop clean air technologies for the San Joaquin Valley and South Coast Air Basins through collaborative projects in technology research, development, demonstration, and deployment.

2023 Administrative Consent Order: Red Hill Bulk Fuel Storage Facility Defueling, Closure, and Joint Base Pearl Harbor-Hickam Drinking Water System

Final 2023 Administrative Consent Order with the U.S. Department of the Navy and Defense Logistics Agency that requires steps to ensure the safe defueling and closure of the Red Hill Bulk Storage Facility at Joint Base Pearl Harbor-Hickam in Honolulu, HI.

EPA Pacific Southwest (Region 9) to perform Five-Year Reviews at 20 Superfund sites in 2027

In 2027 the U.S. Environmental Protection Agency (EPA) will perform comprehensive Five-Year Reviews of cleanups at 20 Superfund sites across Arizona, California, Guam, and Nevada.

Cleanups in My Community Web Map Service and More

This bridge page links to the CIMC Web Service and provides access to the latest data downloads.

Pacific Southwest PCB Success Stories: Utility Cleanups

Emerald Transformer Los Angeles LLC (Formerly Clean Harbors Los Angeles)

Information about Emerald Transformer Los Angeles, LLC, a commercial hazardous waste treatment, storage, and transfer facility in Vernon, California. EPA regulates the handling of PCB waste at this facility under a Toxic Substances Control Act permit.

Funding Opportunities for Tribal Green Building

Funding resources for Tribes seeking green building assistance. Federal, Tribal, and some state agencies provide grants and loans that can be used to support Tribal green building.

CWA-09-2026-0063: Trivium Packaging, Sparks, Nevada

Expedited Settlement Agreement in the matter of Trivium Packaging, Sparks, NV. Docket Number: CWA-09-2026-0063.

CWA-09-2025-0005: Consent Agreement and (Proposed) Final Order; CEMEX Construction Materials Pacific LLC, Wadsworth, Nevada

Proposed administrative penalty settlement with CEMEX Construction Materials, Pacific, LLC, for violations of the Clean Water Act at its facility in Wadsworth, Nevada. EPA Docket No. CWA-09-2025-0005.

West Oakland Collaborative Memorandum of Understanding (MOU)

On January 17, 2025, EPA Region 9 (Pacific Southwest) launched a new collaborative effort to address impacts posed by a metal shredding operation (Radius Recycling) in West Oakland, California.