Learn the Issues
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Navajo Nation Abandoned Uranium Mines Cleanup
This site provides information about the progress of EPA's cleanup of abandoned uranium mines on the Navajo Nation, including health impacts, major enforcement and removal milestones, and community actions.
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Navajo Workforce Development
The 2025 Lukachukai Mountains Mining District Superfund Job Training Initiative is an environmental remediation job readiness program that provided career development opportunities for 24 trainees living near the Lukachukai Mountains Mining District Superf
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Contracting With EPA for Abandoned Uranium Mine Cleanup Work
Learn about contract opportunities with EPA and resources for abandoned uranium mine (AUM) cleanup work on Navajo Nation.
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Hypoxia Task Force Studies and Reports
A number of important Hypoxia Task Force documents are listed here.
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Hypoxia Task Force Annual Operating Plans
This document page includes four Hypoxia Task Force annual operating plans from 2008-2011.
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Gulf Hypoxia and Local Water Quality Concerns Workshop
The presentations, agenda, and full proceedings by session for the September 2005 Gulf Hypoxia and Local Water Quality Concerns Workshop.
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Hypoxia Task Force: Moving Forward
Landing page for Moving Forward on HTF website sidebar
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Hypoxia Task Force New Goal Framework
The updated coastal goal and interim target and commitment to accelerated and new actions to reduce nutrients basin wide, announced by the HTF in February 2015.
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Hypoxia Task Force Work with Land Grant Universities: Priorities for Collaborative Work
This document outlines emergent opportunities as of May 2018 for potential short- and long-term collaborative work between the Hypoxia Task Force and LGU SERA-46.
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Nutrient Loading and Removal in the Lower Mississippi River Basin: Data, Trends & Opportunities
The presentations, agenda, and agenda sessions transcripts for the June 2006 Symposium on Nutrient Loading & Removal in the Lower Mississippi River Basin: Data, Trends & Opportunities.
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Trust Mines
The United States and the Navajo Nation entered into legal agreements (the Phase 1 Settlement and the Phase 2 Settlement) that provide funds to investigate 46 mines, clean up 16 of the 46 “priority mines" and carry out two water studies.
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Tronox Abandoned Uranium Mines
This site provides information EPA's cleanup of abandoned Tronox uranium mines.
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Land Research Recent Publications
scientific journals and articles related to SHC land management
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April 27, 2017 Meeting of the Human Studies Review Board
Materials to support the HSRB meeting on April 27, 2017: includes meeting agenda and a background paper on mosquito repellent testing.
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Publications that cite COBRA
This document contains a list of publications that have used EPA’s COBRA tool to estimate the health impacts of changes in air pollution emissions.
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Contaminated Structures Program
USEPA and the Navajo Nation Environmental Protection Agency’s (NNEPA) Contaminated Structures Program evaluates structures on Navajo Nation that may have been constructed using abandoned mine materials or built on or near abandoned mines.
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Screening Assessment Report and Atlas with Geospatial Data
This Navajo Nation AUM Screening Assessment Report and the accompanying Atlas with Geospatial Data documents NAUM project data collection and screening results for all known AUMs on the Navajo Nation.
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Fifty Years of Protecting the Ocean
In October 2022, EPA celebrates the 50th anniversary of two environmental laws that protect oceans, bays and estuaries. The Clean Water Act is more commonly known, the lesser-known Marine Protection, Research and Sanctuaries Act is also of great importance
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Historical Ethylene Oxide Actions
EPA actions related to ethylene oxide.
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Regulation of Ethylene Oxide (EtO) Under the Federal Insecticide, Fungicide, and Rodenticide Act
EPA is undergoing a registration review of Ethylene Oxide (EtO)