4 The record articles

4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.

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How Do I Know if My Project Needs an Air Permit?

Posted: October 19th, 2022

There is not a whole lot that is black and white about air quality permitting.  It can sometimes be hard to determine whether you need to submit an air permit application for a project and if so, what kind.  The […]

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ECHO and ECHO Notify: Do you know what data is out there?

Posted: October 12th, 2022

With different industries continuing to either expand their current facilities or build new facilities, public awareness and scrutiny has increased dramatically over the past few years. The public has started looking into different factors associated with facilities – including a […]

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U.S. EPA Issues Engine Compliance Advisory and Enforcement Alert

Posted: October 5th, 2022

The United States Environmental Protection Agency (U.S. EPA) Office of Enforcement and Compliance Assurance recently issued a Clean Air Act (CAA) Compliance Advisory and Enforcement Alert for Stationary Engines.  In this alert, U.S. EPA notes taking numerous enforcement actions against […]

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U.S. EPA Proposes PFAS CERCLA Hazardous Substance Designation

Posted: September 14th, 2022

On September 6, 2022, the United States Environmental Protection Agency (U.S. EPA) published the proposed rule “Designation of Perfluorooctanoic Acid (PFOA) and Perfluorooctanesulfonic Acid (PFOS) as CERCLA Hazardous Substances.” Under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 […]

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Fugitive Fenceline Monitoring Requirements Continue to Roll Out

Posted: September 7th, 2022

The U.S. Environmental Protection Agency (U.S. EPA) and State air regulatory agencies continue to utilize U.S. EPA Methods 325A (Sampler Deployment and VOC Sample Collection) and 325B (Sampler Preparation and Laboratory Analysis) as part of new and amended regulations and […]

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