4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Pennsylvania RACT III Update: Draft Rule Published, Comment Period Is Now Open
Posted: August 25th, 2021
On August 7, 2021, the draft rule affectionately known as “RACT III” [25 Pa. Code §§ 129.111-129.115, Additional RACT Requirements for Major Sources of NOX and VOCs for the 2015 Ozone NAAQS] was published in the Pennsylvania bulletin. This marks […]
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What’s New with New Source Review?
Posted: August 18th, 2021
During the previous administration, we saw quite a bit of work by the U.S. Environmental Protection Agency (EPA) around New Source Review (NSR). As a reminder, the NSR permit program includes the prevention of significant deterioration (PSD) and the nonattainment […]
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EPA’s Power Plants and Neighboring Communities Tool – It’s Not Just for Power Plants
Posted: August 12th, 2021
On July 29th, The U.S. Environmental Protection Agency (U.S. EPA) held a webinar to introduce their Power Plants and Neighboring Communities web resource. The tool is built off the demographic and environmental information available in U.S. EPA’s EJSCREEN Environmental Justice […]
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Kentucky’s New Legislation- Modifying Water Discharge KPDES Permits Allowing for Rapid and Complete Mixing
Posted: August 7th, 2021
On March 24, 2021, Kentucky House Bill (HB) 386 was enacted into law. The purpose of the legislation was to amend Kentucky’s regulations on water quality standards to recognize the effect of rapid and complete mixing (RCM) on industrial discharges […]
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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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U.S. EPA to Reconsider PM2.5 NAAQS
Posted: July 23rd, 2021
On June 10, 2021 U.S. EPA announced that it would reconsider the previous administration’s decision to retain the particulate matter less than 2.5 microns (PM2.5) National Ambient Air Quality Standard (NAAQS). The previous administration made its final decision to retain […]
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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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Cement and Concrete: What’s the Difference? What Effects Do They Have on Sustainability?
Posted: July 13th, 2021
There are some age-old questions out there: What’s the difference between bourbon and whiskey? A calzone and a stromboli? A fiddle and a violin? What about the difference between cement and concrete? To keep it short and sweet, cement is […]
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New Landfill Air Regulations May Inspire a Round of Tic Tac Toe
Posted: July 9th, 2021
If it seems like you’ve been hearing a lot about air quality regulations for landfills over the last few years, that’s because there are seven different Subparts under Parts 60, 62, and 63 to Title 40 of the Code of […]
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