Air Quality Compliance

Update on 40 CFR Part 63, Subpart MM

Posted: January 7th, 2020

The anticipated proposed amendments to 40 CFR Part 63, Subpart MM (National Emission Standards for Hazardous Air Pollutants for Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills) were published in the Federal Register on October […]

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Tennessee’s Move to Online Emissions Inventory Submittal

Posted: December 17th, 2019

The Tennessee Division of Air Pollution Control (APC) Emissions Inventory Team has recently finalized the switch to an internet-based system for air emissions inventory reporting, referred to as the State/Local Emissions Inventory System (SLEIS). Starting with the 2019 emissions inventory […]

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Highlights from the 2019 TCEQ Autumn Conference

Posted: October 31st, 2019

ALL4 attended the Texas Commission on Environmental Quality (TCEQ) Autumn Conference, where many updates were discussed in the areas of permitting, legislative decisions, and management structure. Read on to learn more about the conference updates. The new TCEQ Office of […]

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What is a P2 Plan??

Posted: October 16th, 2019

If you have been in the environmental business for a while, you are likely well-versed in the submission dates for the Federal Programs that occur each year [e.g. Air Emissions Inventory, Toxic Release Inventory (TRI). If you are a Texas […]

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Proposed Rulemaking for Ethylene Production NESHAP

Posted: September 12th, 2019

On September 5, 2019, Andrew Wheeler, the U.S. Environmental Protection Agency (U.S. EPA) Administrator, signed a notice proposing changes to the National Emission Standards for Hazardous Air Pollutants (NESHAP): Generic Maximum Achievable Control Technology Standards for Ethylene Production.  U.S. EPA […]

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Sticky Situation: What You Should Know About PFAS

Posted: August 29th, 2019

Per- and polyfluoroalkyl substances (PFAS) are a group of more than 3,000 emerging contaminants that have been heavily utilized in a wide range of industries including military training, consumer product manufacturing, and emergency services. Although most of the releases have […]

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