Learn the Issues

This page shows all of the pages at www.epa.gov that are tagged with Learn the Issues.

  • El Paso Natural Gas Mines

    Information about the El Paso Natural Gas Mines, 19 abandoned uranium mine claims generally located along the Little Colorado River or Highway 89 near Cameron, AZ.

  • Public involvement for the Bristol Bay Assessment

    Description of public involvement activities leading up to EPA's Bristol Bay Assessment Report.

  • El Paso Natural Gas Mines Fact Sheets

    These fact sheets contain information about El Paso Natural Gas Mines and the Western Abandoned Uranium Mine Region, 19 abandoned uranium mine claims generally located along the Little Colorado River or Highway 89 near Cameron, AZ.

  • Trust Mines: Legal Documents and Settlements

    Legal documents and settlements related to Navajo Nation Trust Mines including the 2015 Phase 1 Settlement Agreement, the 2023 Phase 2 Settlement Agreement, and the 2022 Phase 2 Expanded Trust Agreement.

  • Section 9 Lease Mines: Legal Documents and Settlements

    Legal documents related to Section 9 Lease Mines, three abandoned uranium mines sites located near the Little Colorado River in Northern Arizona.

  • Legal Documents and Settlements

    Legal documents and settlements related to Navajo Nation Abandoned Uranium Mines.

  • Ruby Mines: Legal Documents and Settlements

    Legal documents related to the cleanup of Ruby Mines.

  • Northeast Church Rock Mine: Legal Document and Settlements

    Legal Document and Settlements related to the cleanup progress of the Northeast Church Rock Mine (NECR).

  • Mariano Lake Mine: Legal Documents and Settlements

    Mariano Lake Mine Administrative Order on Consent (AOC) with Statement of Work (SOW) and Mariano Lake Mine Site Settlement Agreement for Engineering Evaluation/Cost Analysis and Statement of Work (SOW) for the Mariano Lake Mine Site.

  • EnPro Holdings Inc. (EnPro) Mines

    Information about the progress of EPA's cleanup in Cameron Area Mines, including health impacts, major enforcement and removal milestones, and community actions.

  • SO2 Data Requirements Rule January 13, 2017 State Submittals - Oklahoma

    SO2 Data Requirements Rule January 13, 2017 State Submittals - Oklahoma

  • SO2 Data Requirements Rule January 13, 2017 State Submittals - Iowa

    SO2 Data Requirements Rule January 13, 2017 State Submittals - Iowa

  • El Paso Natural Gas Mines Legal Documents and Settlements

    Documents and fact sheets concerning legal actions and settlements related to the cleanup of El Paso Natural Gas Mines (EPNG).

  • Trust Mines: Fact Sheets

    EPA Fact Sheet with information about the settlement agreements, the Trustees, and Trust Mines assessment and cleanup progress of abandoned uranium mines on the Navajo Nation.

  • 美国国家环境保护局 - 中文 (简体版)

    Environmental information translated into Simplified Chinese includes air quality, drinking water and fish consumption, pesticides and toxic substances, women's health, diabetes, safe waste disposal, and environmental justice, clean up

  • Facilities covered under EPCRA 304

    What facilities are covered under EPCRA release reporting requirements? EPCRA section 329(4) defines facility to include stationary structures on a single site, or on contiguous or adjacent sites owned or operated by the same person. For purposes of release reporting under EPCRA section 304 , motor vehicles, rolling stock, and…

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  • CERCLA petroleum exclusion

    What is the CERCLA petroleum exclusion? The term "hazardous substance" is defined in CERCLA section 101(14) to include substances listed under four other environmental statutes (as well as those designated under CERCLA section 102(a)). The definition excludes "petroleum, including crude oil or any fraction thereof," unless specifically listed or designated…

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  • Crosswalk Aligning EPA's Hazard Categories with OSHA's Hazard Classification

    Pursuant to 40 CFR 370.42(s)(5) , an owner or operator submitting the Emergency Planning and Community Right-to-Know Act (EPCRA) Tier II inventory information must indicate the hazard categories that apply to the chemical or mixture. The five hazard categories are defined in 40 CFR 370.66 . How do the EPA…

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  • EPCRA 304 Release Notification For Mixtures

    How is release notification handled for mixtures under EPCRA section 304? Similar to the release notification requirements in CERCLA section 103, release notification of a mixture under EPCRA should be in accordance with the Clean Water Act (CWA) mixture rule. If the quantity of all the hazardous constituents of the…

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  • Responsibility for MSDS Accuracy

    When submitting a material safety data sheet (MSDS) in order to meet the reporting requirements of EPCRA section 311, to what extent are “downstream” recipients of an MSDS, such as manufacturers and chemical users, responsible for the accuracy of the information on the MSDS, such as chemical hazard assessments? Producers…

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