Collections and Lists

Clean Water Act Section 404(g) Tribal and State Assumption

Info for Tribes and states on the requirements for, administration of, and EPA oversight of a Tribal or State Section 404 program. The site is a resource for the audiences in Tribes or states with assumed programs.

News from EPA's Cleanup Programs

Links to various EPA news sources for cleanup programs

Long Creek Residual Designation

Information and documents pertaining to the Long Creek Residual Designation for NPDES permitting in Maine.

Great Lakes Initiative Technical Support Documents

Links to EPA technical support documents on water quality guidance

Great Lakes Initiative (GLI) Clearinghouse

The Great Lakes Initiative Toxicity Clearinghouse is a central location for information on criteria, toxicity data, exposure parameters and other supporting documents used in developing water quality standards in the Great Lakes watershed.

Administrative Record for the Draft CII GP

Documents Collection of Administrative Record for the Draft CII GP

Integrated Science Assessments (ISAs)

Integrated Science Assessments are reports that represent a concise evaluation and synthesis of the most policy-relevant science for reviewing the National Ambient Air Quality Standards for the six principal pollutants.

St. Lawrence River Area of Concern at Massena/Akwesasne

Describes history of the AOC, beneficial use impairments and sources of pollution.

Rochester Embayment AOC - Delisted

Background information and beneficial use impairments for Rochester Embayment AOC.

The Mystic River Watershed Initiative

See report cards for the Mystic River and read related news releases.

EPA-approved Source-Specific Reasonably Available Control Technology

Dup of EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Pennsylvania SIP

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Pennsylvania SIP

Regulatory Oversight of the Havasu Water Company Public Water System, Needles, CA

The Havasu Water Company (HWC) operates a public water system on the Chemehuevi Indian Reservation in Needles, California. The system relies on surface water filtration to serve approximately 360 people. EPA oversees HWC under the Safe Drinking Water Act.