Learn the Issues
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Change of ownership and responsibility for Tier II reporting
A facility changed ownership during the third quarter of the 1990 calendar year. Which owner/operator is responsible for the submission of Section 312 Tier II form for the calendar year 1990? Both owners and operators have responsibility for reporting under Section 312 of the Emergency Planning and Community Right-to-Know Act…
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Applicability of EPCRA §§302 and 304 to EHSs produced on-site
If an extremely hazardous substance is not stored on-site but is produced in a process such as incineration, is it exempt from both threshold planning quantity calculation and release reporting if the release is covered by a Clean Air Act permit? If the hazardous substance is produced on-site in a…
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Gasoline and diesel fuel UST compliance determination
Are State or Tribal Emergency Response Commissions (SERCs or TERCs), Local or Tribal Emergency Planning Committees (LEPCs or TEPCs), or fire departments required to determine if facilities are in compliance with underground storage tank (UST) requirements? No. SERCs/TERCs, LEPCs/TEPCs, and fire departments are not required to make the determination themselves…
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Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2020
View or download the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2020, including individual chapters and annexes.
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Are there Tier II deadline extensions?
Section 312 of the Emergency Planning and Community Right-to-Know Act (EPCRA) requires covered facilities to submit a Tier II form to their State or Tribal Emergency Response Commission (SERC or TERC), Local or Tribal Emergency Planning Committee (LEPC or TEPC), and local fire department on March 1st of every year…
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What are extremely hazardous substances (EHSs)?
The Emergency Planning and Community Right-to-Know Act (EPCRA) section 304 release reporting requirements apply to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) hazardous substances and EPCRA extremely hazardous substances (EHSs). What are EHSs? The EHS list was first compiled by EPA, and subsequently incorporated into EPCRA, to identify…
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Contact center for questions about Tier2 Submit
What if I have questions about Tier2 Submit? If you have questions about Tier2 Submit, contact the RMP Reporting Center via email ( RMPRC@epacdx.net ) or phone (703-227-7650) on weekdays from 8 AM – 4:30 PM Eastern.
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List of state underground storage tank agencies
Where can state/local offices get contact names and addresses for their UST agencies? A list of state UST agencies can be found on U.S. EPA's Office of Underground Storage Tanks homepage at www.epa.gov/ust . A list of SERCs and LEPCs can be found by going through OEM's webpage on partnering…
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Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2021
View or download the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2021, including individual chapters and annexes.
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Other Grant Resources for Tribes
Information on grants and funding opportunities and advice on how to apply for them for tribal air professionals.
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Adaptation Actions for Protecting Waste Facilities
Nine categories of adaptation actions for protecting waste facilities from climate change.
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Accessing RMP Data
Is Risk Management Plan (RMP) data available to the public and, if so, where can it be found? Risk Management Plans (RMPs) prepared and submitted pursuant to CAA section 112(r) are, by statute, available to the public. Members of the general public may obtain RMP data by visiting a designated…
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2019 Aquarius Project Compendium
The Drinking Water State Revolving Fund Aquarius Recognition Program nationally recognizes DWSRF-funded projects
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Drinking Water Bipartisan Infrastructure Law (BIL) Emerging Contaminant (EC) Funding Options
On January 31, 2023, the DWSRF team presented a national webinar on the available funding options to address emerging contaminants in drinking water. Speakers from the UCMR team discussed how emerging contaminants are added to the Contaminant Candidate Lis
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Disclaimer for the Adaptation Strategies for Climate Change Adaptation
The adaptation strategies provided are intended to inform and assist communities in identifying potential alternatives.
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2021 Aquarius Compendium
2021 Aquarius Compendium
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Environmental Topics
EPA's resources on environmental issues include research, basics, what you can do, and an index covering more specific terms.
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Watershed Academy Web Flyer
A brochure highlighting the Watershed Academy Web.
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Voluntary Hangtag Guidelines for Manufacturers of Wood-Burning Devices
Voluntary Hangtag Guidelines for Manufacturers of Wood-Burning Devices