Refrigerant Rules: Still Not the Final Chapter
Posted: October 11th, 2021
Earlier this summer, ALL4 mentioned that the first Federal rule under the bipartisan approved American Innovation and Manufacturing (AIM) Act of 2020 was to be promulgated this year, which will initiate the U.S.’ domestic approach for a phasedown of hydrofluorocarbons […]
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Updates to Guidance on Ozone and Fine Particulate Matter Permit Modeling Issued by U.S. EPA
Posted: October 8th, 2021
U.S. EPA’s Office of Air Quality Planning and Standards (OAQPS) published the “Revised DRAFT Guidance for Ozone and Fine Particulate Matter Permit Modeling” (Revised Draft Guidance) on September 20, 2021. The Revised Draft Guidance replaces the initial “DRAFT Guidance for Ozone […]
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Navigating Kentucky’s Nonattainment Status
Posted: September 29th, 2021
In October 2015, the U.S. Environmental Protection Agency (EPA) revised the primary and secondary ozone standards to a level of 70 parts per billion (ppb). Based on the new National Ambient Air Quality Standards (NAAQS), U.S. EPA uses national air […]
Read articleCompliance History Proposed Rule – Texas Edition
Posted: September 7th, 2021
The Texas Commission on Environmental Quality (TCEQ) published a proposed rulemaking for consideration on July 23, 2021 regarding the ability to make immediate adjustments to a site’s compliance history classification. The proposed rule will be published under 30 TAC Chapter […]
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U.S. EPA Enforcement Alert Regarding Metal Recycling Facilities
Posted: September 2nd, 2021
In July 2021, the U.S. Environmental Protection Agency (U.S. EPA) issued an enforcement alert for metal recycling facilities that operate auto and scrap metal shredders. The enforcement alert is intended to inform facilities of potential excess emissions of volatile organic compounds […]
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State-Specific Considerations for SPCC Plans in North Carolina and South Carolina
Posted: September 1st, 2021
This blog is part of a series that covers key state-specific requirements for petroleum containing aboveground storage tanks (ASTs) with respect to Spill Prevention, Control, and Countermeasure (SPCC) compliance with 40 CFR Part 112.7(j). In this edition, ALL4 will continue […]
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State-Specific Considerations for SPCC Plans in Maryland
Posted: August 31st, 2021
Update: As of June 13, 2022, COMAR 26.10 has been updated with additional requirements applicable to ASTs. Please see What to Know About Maryland’s New Storage Tank Regulations for more information. This blog is part of a series that will […]
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Ambient Monitoring Networks and Environmental Justice
Posted: August 5th, 2021
In May 2021 the Air & Waste Management Association (A&WMA) virtually presented the Air Quality Measurements Conference. Amongst the many discussions around the advancements in measurements of air quality, the most common themes revolved around the advancement of citizen-science air […]
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PFAS: State-by-State Regulatory Update
Posted: July 22nd, 2021
Given the current lack of all-encompassing federal environmental regulation around per- and polyfluoroalkyl substances (PFAS), states are taking it upon themselves to set their own standards amid growing public scrutiny. With proposed house bills, rejections of bills, and other PFAS […]
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My Facility is Subject to the EMACT – What Should I be doing Now?
Posted: July 20th, 2021
The U.S. Environmental Protection Agency (U.S. EPA) finalized amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP): Generic Maximum Achievable Control Technology Standards for Ethylene Production, otherwise known as “EMACT” on July 6, 2020. Is your facility on […]
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