4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
A Review of 1-Hour NO2 NAAQS Air Quality Modeling
Posted: August 18th, 2015
During the development of this 4TR article, proposed revisions to Appendix W to 40 CFR Part 51 “ Guideline on Air Quality Models (Guideline) were published in the Federal Register. As a result of revisions which propose to establish Tier […]
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Ethylene Production – A Tale of Explosive Growth and Air Quality Compliance
Posted: August 18th, 2015
ALL4’s Oil and Gas Sector Initiative was conceived in response to the renewal of the domestic oil and gas industry, associated primarily with the use of hydraulic fracturing (or fracking) and horizontal drilling in shale formations (e.g., Marcellus, Haynesville, Bakken, […]
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The Next Generation of Air Permit Applications in Georgia
Posted: August 17th, 2015
On July 30, 2015, I attended a training session at the Georgia Environmental Protection Division (GEPD) offices in Atlanta, Georgia for a hands-on demonstration of its new electronic permit application software system…
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Compliance and Emissions Data Reporting Interface (CEDRI) Review
Posted: August 17th, 2015
Do you want to find out the compliance status of a cement plant, a power plant, a refinery, or any another facility subject to New Source Performance Standards (NSPS) or National Emission Standards for Hazardous Air Pollutants (NESHAPs)? Just point and click…
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Facility Management: Top 5 Environmental Compliance Issues for Engineers and Managers
Posted: July 30th, 2015
Based upon my experience providing air quality compliance support and managing multi-media environmental projects for commercial real estate companies, healthcare facilities, and others, the property management and building operations & maintenance fields are not for the faint of heart…
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Ga-ga Rocks!
Posted: July 29th, 2015
ALL4 hosted one of its annual cornerstone events this past weekend – Crabfest 2015. Not only was this event held at a new venue this year, a local day camp facility located near our corporate office in Kimberton, PA, but it went down in ALL4 history as one of our…
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Proposed Revisions to the Guideline on Air Quality Models (Appendix W)
Posted: July 27th, 2015
On July 14, 2015, the U.S. Environmental Protection Agency’s (U.S. EPA’s) Office of Air Quality Planning and Standards’ (OAQPS) Air Quality Modeling Group provided a pre-Federal Register (FR) publication of the proposed revisions to the Guideline on Air Quality Models (Appendix […]
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Finalized PC MACT Amendments and Performance Specification 18
Posted: July 27th, 2015
On July 1, 2015, the U.S. Environmental Protection Agency (U.S. EPA) finalized the proposed amendments to 40 CFR Part 63, Subpart LLL – National Emissions Standards for Hazardous Air Pollutants (NESHAP) for the Portland Cement Manufacturing Industry, which establishes…
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If It is June, It Must Be a NCASI Boiler MACT Session
Posted: July 10th, 2015
Each June, ALL4’s Atlanta, Georgia office participates in the National Council for Air and Stream Improvement’s (NCASI’s) Southern Regional Meeting. This annual rite of summer allows ALL4 to reconnect with our pulp and paper and wood products sector clients and regulatory contacts…
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U.S. EPA Approves Pennsylvania’s VOC Control SIP Revisions
Posted: June 29th, 2015
On June 25, 2015, the U.S. Environmental Protection Agency (U.S. EPA) approved a State Implementation Plan (SIP) revision originally submitted by the Pennsylvania Department of Environmental Protection (PADEP) on August 27, 2014…
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