Learn the Issues

Who can test my home or clean, fix and remediate my home for mold?

EPA does not have a certification program for mold inspectors or mold remediation firms. EPA does not maintain a list of mold inspectors or mold remediation firms, though some states might. Some states and organizations may require certification, trainings, or examinations for practitioners in the indoor air quality industry. Sometimes…

Last published: January 14, 2026

Mold Knowledge Test

This test is provided by EPA for your information only. EPA does not track to the results, but this can help you see how well you absorbed the information in the mold course.

Mold Remediation in Schools and Commercial Buildings Guide: Appendix C

The content on this page is based on the guide by the same name. However, updates have been made to some resources and links. Here you can find information on mold prevention and remediation.

What are the basic mold cleanup steps?

The key to mold control is moisture control. Scrub mold off hard surfaces with detergent and water, and dry completely. Fix plumbing leaks and other water problems as soon as possible. Dry all items completely. Absorbent or porous materials, such as ceiling tiles and carpet, may have to be thrown…

Last published: January 14, 2026

EPA's Study of Hydraulic Fracturing for Oil and Gas and Its Potential Impact on Drinking Water Resources

EPA's Study of Hydraulic Fracturing and Its Potential Impact on Drinking Water Resources

Lead Service Line Replacement Program

Assist federally recognized tribes within EPA Region 9 (CA, NV, AZ) to address lead service line replacement projects and associated activities directly connected to the identification, planning, design, and replacement of lead service lines.

Tribal Water Quality Standards in EPA's Pacific Southwest (Region 9)

EPA's Tribal Water Office in Region 9 manages all grants related to the Clean Water Act for over 100 federally recognized Tribes and provides programmatic and technical assistance for water quality standards and CWA grant programs.

Water Quality Certifications on Tribal Lands in EPA's Pacific Southwest (Region 9)

This page provides information about EPA’s Clean Water Act (CWA) Section (§)401 water quality certifications on Tribal Lands of EPA's Pacific Southwest (Region 9).

Clean Water Indian Set-Aside (CWISA) Program

To assist federally recognized Tribes within EPA Region 9 to improve wastewater infrastructure. Funds may be used for planning, design and construction of wastewater collection and treatment systems.

Red Hill Remediation Roundtable

Information about the Red Hill Remediation Roundtable, created to bring together water protection public trust agencies to discuss active and planned work to investigate and remediate contamination caused by the Red Hill Bulk Fuel Storage Facility.

2015 AOC Investigation and Remediation: Groundwater Monitoring

Information and documents related to Red Hill Bulk Fuel Storage AOC SOW 7.3: Groundwater Monitoring.

2015 AOC Investigation and Remediation: Groundwater Flow Patterns

Information and documents related to Red Hill Bulk Fuel Storage AOC SOW 7.1 and 7.2: Groundwater Flow and Fate and Transport Modeling.

Fire Suppressant (“AFFF”) Spill

about

2015 Administrative Order on Consent

In response to the January 2014 fuel release from the Red Hill facility, EPA and Hawai'i Department of Health negotiated the 2015 Administrative Order on Consent with the U.S. Navy and the Defense Logistics Agency requiring actions to address.

Inspections and Enforcement

Information about Red Hill's Spill Prevention and Underground Storage Inspections, Drinking Water System Compliance, and AFFF Release Investigation.

Red Hill Groundwater Results Application

This application combines multiple historical and current data sets that the Navy has made available online to provide you with a simple way to view up-to date information about groundwater quality around the Red Hill Bulk Fuel Storage Facility in Hawaiʻi.