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Carboniferous, Inc. Research Project Overview and Permitting Status

MPRSA Research Permit for the Carboniferous, Inc. Research Project for the transportation and disposition of material into ocean waters in the Gulf of America, Orca Basin

Battery Collection in Action Case Study: The Morongo Band’s Battery Program

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

General Information about Solid Waste, Physical/Chemical Methods

General Test Methods, Frequent questions

Lagoon Wastewater Treatment Systems

Learn about Lagoon Wastewater Treatment Systems

List of Publicly Accessible Internet Sites Hosting CCR Management Compliance Data and Information

This page is to make accessible a list of the websites coal-fired power plants have created to post for the public to view with respect to their compliance with the disposal of coal combustion residuals final rule.

The WaterSense Current: Winter 2019

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General Air Quality Permit for New or Modified Minor Source Gasoline Dispensing Facilities in Indian Country within California

This General Permit is available for gasoline dispensing facilities (GDFs), such as gas stations, located in Indian country within the geographical boundaries of California.

Get Started

By understanding and reducing your HOA’s water use outdoors you can save both money and water while maintaining an attractive and inviting landscape. Start understanding your property’s water use with the resources on this page.

CWA-08-2026-0001: City of Cut Bank; Consent Agreement and Opportunity to Comment

EPA is providing notice of an opportunity for the public to comment on an expedited penalty action and consent agreement pertaining to a water treatment plant owned and operated by the City of Cut Bank, which discharges wastewater in Cut Bank, MT.

Comments Due Date: October 25, 2025
Geographic Locations: Montana

Heating, Ventilation and Air-Conditioning Systems, Part of Indoor Air Quality Design Tools for Schools

The main purposes of a Heating, Ventilation, and Air-Conditioning system are to help maintain good indoor air quality through adequate ventilation with filtration and provide thermal comfort. HVAC systems are among the largest energy consumers in schools.

Reference Guide for Indoor Air Quality in Schools

IAQ Tools for Schools Action Kit - IAQ Reference Guide. This guidance is designed to present practical and often low-cost actions you can take to identify and address existing or potential air quality problems.

Tribal Programs in the Pacific Northwest and Alaska

Resources for environmental protection in Indian Country in EPA’s Region 10, serving tribes in Alaska, Idaho, Oregon, Washington.

Alternative Measurement Protocols for Biogas and Renewable Natural Gas

This page posts for public availability the approved alternative measurement protocols under the biogas regulatory reform provisions.

Grant Funding to Address Indoor Air Pollution at Schools

Grants to monitor and reduce air pollutants at schools in low-income and disadvantaged communities.

Learn About Indoor Air Quality in Tribes

Indoor air quality (IAQ) is a term used to describe the level of air pollution in homes and other indoor spaces. Indoor air pollutants are chemical, physical, or biological pollutants.

Why Indoor Air Quality is Important to Schools

Basic information for IAQ and schools: why it's important, what you can do, EPA and federal partners, national organizations, and resources

How big a problem is poor indoor air quality (IAQ) in schools?

Indoor levels of some air pollutants can be two to five times higher (and occasionally 100 times higher) than outdoor levels. Nearly 56 million people (approximately 20 percent of the U.S. population) spend their days inside elementary and secondary schools. In 1999, the National Center for Education Statistics of the…

Last published: September 24, 2025