Learn the Issues
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Chemical Suppliers and Manufacturers Locator Tool
This page hosts the link to the Water Treatment Chemical Suppliers and Man. Locator Tool. It provides directors to request and access an account.
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Cleanup Optimization at Superfund Sites
Remedy optimization seeks to identify and implement specific actions that improve the effectiveness, protectiveness and cost-efficiency of site cleanups.
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USS Lead Superfund Site
EPA has found high levels of lead in soil in parts of the West Calumet Housing Complex. Residents have been notified about results of sampling of soil around their homes.
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Indoor Air Quality (IAQ)
This web site will educate the public about indoor environmental issues, including health risks and the means by which human exposures can be reduced.
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How to Do Business with EPA
This page provides resources for contracting opportunities with the EPA.
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Emergencies and Indoor Air Quality
Find information and strategies for preparing for, responding to, and safely recovering from emergencies, with the goal of maintaining healthy indoor air quality and the protecting building occupants.
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EPA Announces $5.2 Million to Help Protect Drinking Water in California from Cyberattacks and Extreme Weather Events
Today, U.S. Environmental Protection Agency (EPA) announced $5,194,030 in grant funding for midsize and large drinking water systems in California to help protect them from cybersecurity threats and improve resiliency against extreme weather events.
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Lower Yakima Valley Groundwater
EPA's investigation of nitrate contamination in groundwater in the Lower Yakima Valley of Washington.
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Puget Sound Federal Leadership Task Force
The Puget Sound Federal Leadership Task Force helps align federal agency efforts to protect and restore Puget Sound.
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Region 5 Tribal Program
EPA resources for federally-recognized Tribes within Minnesota, Wisconsin and Michigan.
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Resources for Healthcare Providers about Children's Environmental Health
Free online resources, many produced in the North American Pediatric Environmental Health Specialty Unit (PEHSU) network, covering general information, air quality, asthma, climate change, lead, mercury, mold, pesticides, and water.
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SJRWP
Information about the San Jacinto River Waste Pits Superfund site.
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2025 Southern California Wildfires
On January 7, 2025, a series of catastrophic wildfires developed in Los Angeles County. EPA worked as part of an all-of-government response to these wildfires. We were tasked with removing hazardous materials from nearly 14,000 affected properties.
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Recent Announcements related to Transportation, Air Pollution, and Climate Change
Recent additions and announcements for EPA’s Office of Transportation and Air Quality
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Historical Water Quality Criteria Documents
Reference Documents from the 1980s
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Reference Documents
Reference documents for RTOC
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Marine Protection Permitting in EPA Region 4
Overview of marine protection permitting in Southeast United States. Includes materials dumped in the Region, MPRSA permits issues, dredged material testing guidance, ocean site descriptions and information, regional dredging teams and other partnerships
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EPA Announces over $1.2 Million to Help Protect Drinking Water in Southeast Region from Cyberattacks and Extreme Weather Events
EPA Announces over $1.2 Million to Help Protect Drinking Water in Southeast Region from Cyberattacks and Extreme Weather Events
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Resilience Exercises for Drinking Water and Wastewater Utilities
Most critical infrastructure sectors have interdependencies with drinking water and wastewater services. These include the Energy Sector, Healthcare and Public Health Sector, Chemical Sector, Emergency Services Sector and more.
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EPA Subaward Frequent Questions
These answers to frequent questions (FQ) are intended to provide information to recipients of EPA financial assistance to help them understand EPA’s interpretations of the Uniform Grant Guidance (UGG) and EPA’s Subaward Policy.