Learn the Issues
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AP-42 Chapter 4: Evaporation Loss Sources - Frequent Questions
AP 42 Frequent Questions
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AP-42 Chapter 6: Organic Chemical Process Industry - Frequent Questions
AP 42 Frequent Questions
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Mercury Study Report to Congress
EPA's Report to Congress on Mercury provides an assessment of the magnitude of U.S. mercury emissions by source, the health and environmental implications of those emissions, and the availability and cost of control technologies.
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Clean Air Mercury Rule: October 2008 Writ of Certiorari for EPA v. State of New Jersey
October 2008 Writ of certiorari for EPA v. State of New Jersey
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2008 Memo Requiring All EPA Labs to Phase Out Use of Mercury-Filled Thermometers
September 30, 2008 internal EPA memo from Luis Luna re: phasing out mercury-filled thermometers
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2009 EPA Report to Congress on the Potential Export of Mercury Compounds from the United States for Conversion to Elemental Mercury
2009 EPA Report to Congress on the Potential Export of Mercury Compounds from the United States for Conversion to Elemental Mercury
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Good Neighbor Plan Results
EPA is releasing NOx emission reductions from the first ozone season under the Good Neighbor Plan.
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EMS at EPA Headquarters and Special Program Laboratories
EMS information for EPA Headquarters office and Special Program Labs
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Mercury in Water by Manual Cold Vapor Atomic Absorption (CVAA): EPA Method 245.1
Summarizes holding times, and preservation for mercury in water by manual cold vapor atomic absorption. Also provides calibration procedures.
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Resources for Wastewater Operators
Web page providing resources to help operators of small mechanical wastewater plans and treatment lagoons avoid common mistakes that trigger non-compliance.
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Loss of Pressure and Lead Service Line Presentation
Loss of Pressure in Drinking Water Systems in Wyoming - Presented by Kyle St Clair at the WWQ-PCA Conference held in October of 2023.
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How to Address Radon When Building a New Home
There are so many things to consider when having a new home built - so many choices to make. Learn about Radon and what you need to know to make your home safe from Radon.
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EPA Region 8 Water Technical Assistance Presentation
EPA Region 8 Water Technical Assistance - Presented by Bryce Faliskie, Kenley Stone, Darrel Williams and Tamara Barbakova at the WWQ-PCA Conference held in October of 2023.
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Creating Resilient Water Utilities (CRWU)
Loss of Pressure in Drinking Water Systems in Wyoming - Presented by Kyle St Clair at the WWQ-PCA Conference held in October of 2023.
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How much can a radon mitigation system cost?
You have tested your home for radon, but now what? If you have tested your home for radon and confirmed that you have elevated radon levels, 4 picocuries per liter (150 becquerels per cubic meter (Bq/m 3 ))in air (pCi/L) or higher, our guidance can help you: Select a qualified…
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Are we sure that radon is a health risk?
The EPA already has a wealth of scientific data on the relationship between radon exposure and the development of lung cancer. The scientific experts agree that the occupational miner data is a very solid base from which to estimate risk of lung cancer deaths annually. While residential radon epidemiology studies…
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Revised Total Coliform Rule and Triggered Ground Water Rule for All Water Systems in Wyoming and on Tribal Lands in EPA Region 8
Revised Total Coliform Rule for Transient Systems in Wyoming and on Tribal Lands in EPA Region 8 - Prepared and presented by Jamie Harris at the WARWS Conference held in April of 2023.
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Ponsford Wastewater Stabilization Lagoon NPDES Permit MN-0059439-6
Permit Number: MN-0059439-6
Finalized date 6/5/2024 -
Mahnomen Wastewater Treatment Facility NPDES Permit MN-0024066-6
Final permit for Mahnomen Wastewater Treatment Facility.
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How often should I test/retest my home for radon?
Our general guidance from A Citizen's Guide to Radon - (December 2016, EPA 402/K12/002) - suggests: If your living patterns change and you begin occupying a lower level of your home (such as a basement) you should retest your home on that level. Even if your test result is below…