Learn the Issues
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Environmental Challenges for the Charles River
Learn more about bacterial & nutrient challenges for the Charles River, including combined sewer overflows, phosphorous discharge, and stormwater authorities.
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How Wetlands are Defined and Identified under CWA Section 404
Wetlands are areas where the frequent and prolonged presence of water at or near the soil surface drives the natural system meaning the kind of soils that form, the plants that grow and the fish and/or wildlife communities that use the habitat.
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2021 Emissions Inventory Virtual Seminar Series
The conference will focus on how emission inventories meet the challenges posed by having to apply science and at the same time streamline processes to improve the resulting inventories.
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Publications That Support Private Water Well Safety
This page contains a list of print and electronic publications related to private wells
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What to Do With Your Private Well After a Flood
Information on protecting your private well following a flood.
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Tribal Source Water Protection Projects
This page highlights examples of Tribes utilizing a variety of funding sources to fund activities that protect sources of drinking water.
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How to Manual: How to Update and Enhance Your Local Source Water Protection Assessments
Describes opportunities for improving source water assessments performed under the Safe Drinking Water Act 1453. It includes: local delineations, potential contaminant source inventories, and susceptibility determinations of source water assessment.
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Water Infrastructure Improvements for the Nation (WIIN) Act Section 2107 Lead Testing in School and Child Care Program Drinking Water Grant September 21, 2018 to October 22, 2018 Tribal Consultation Summary
Summary of comments received during tribal consultation of the WIIN Act lead testing in school and child care program drinking water grant program.
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Beaverton Water Supply Improvement Program
WIFIA project.
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Fiscal Year 2015 Pollution Prevention Grant Summaries
The Office of Pollution Prevention and Toxics is responsible for overseeing several grant programs for tribes and states which promote pollution prevention through source reduction and resource conservation.
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Pollution Prevention Opportunities in the Metal Finishing Sector
This page lists presentations from the May 27, 2020, pollution prevention (P2) webinar on pollution prevention in the metal finishing industry.
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2020 Rest of River Revised Final Permit
View news and documents on the 2020 Rest of River Revised Final Permit.
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2021 Mystic River Watershed Report Card Frequently Asked Questions
Frequently asked questions for the 2021 Mystic River Watershed report card.
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Mystic River Watershed Report Cards
Review water quality report cards for the Mystic River Watershed
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States with authority to implement / enforce the risk management program rule
Which states have been granted delegation of EPA's authority to implement and enforce the risk management program rule? The current list of delegated states and counties is: Delaware, Florida, Georgia, Mississippi, New Jersey, North Carolina, North Dakota, Ohio, and South Carolina. Additionally, the following territories and local jurisdictions have delegation…
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Historical Ground-level Ozone Exceedances in New England
Learn more about historical ground-level ozone exceedances in New England.
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Historical Exceedance Days in New England
A chart showing the number of days air quality monitors in each New England state recorded ozone concentrations exceeding the 1997 8-hour ozone standard, as well as the number of days exceeding the 2015 8-hour ozone standard.
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News
Our Work
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Buffalo River Area of Concern Remedial Action Plan Activities - October, 2014
Documents describing completed remedial actions and restoration goals for New York Areas of Concern and the Buffalo River AOC.
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Guam Deep Ocean Disposal Site (G-DODS) Monitoring Reports
Region 9 monitors Guam Deep Ocean Disposal Site (G-DODS) to ensure that unexpected or significant negative effects are not occurring from past or continued use of the disposal site and to verify regulatory and permit compliance.