4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
NO2 NAAQS Implementation Status Quo (For Now)
Posted: August 19th, 2011
U.S. EPA has posted its responses to states’ initial designation recommendations for the new 1-hour nitrogen dioxide (NO2) National Ambient Air Quality Standard (NAAQS). Determining which areas are attaining or not attaining the 1-hour NAAQS will require the operation of […]
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Marcellus Shale – The Saga Continues…Or Does It?
Posted: August 17th, 2011
On May 30, 2011, New York Governor Andrew Cuomo’s office issued an order giving the New York State Department of Environmental Conservation (NYSDEC) until July 1, 2011 to complete a draft of an Environmental Impact Statement (EIS) outlining the processes […]
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New Rule Revisions for Oil and Gas Industry
Posted: August 12th, 2011
On July 28, 2011 U.S. EPA released its draft Standards of Performance for New Stationary Sources (NSPS) and proposed revisions to the National Emission Standards for Hazardous Air Pollutants (NESHAP) rules affecting natural gas production, transportation, distribution, and storage. The […]
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Slade’s Corner – Permitting For Greenhouse Gases
Posted: August 9th, 2011
Don’t forget your greenhouse gases (GHGs). Since July 1, GHGs have become a very important driver in air quality construction permit applications and even Title V renewal applications. Even if you have been permitted as a minor source (facility) and […]
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Portions of Refinery MACT Withdrawn by U.S. EPA
Posted: August 6th, 2011
On July 18, 2011, U.S. EPA published notice in the Federal Register (76 FR 42052) that the residual risk and technology review portions of the revised National Emission Standards for Hazardous Air Pollutants (NESHAP) from Petroleum Refineries (Refinery MACT 1) […]
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ALL4’s: Is That Your Final Answer?
Posted: July 29th, 2011
Test your knowledge across the environmental field, on the building blocks of air quality rules, on ALL4 general trivia, and challenge you with brain teasers that have perplexed us…Take on ALL4’s Is That Your Final Answer?
U.S. EPA Regional, State, and Local Dispersion Modelers Workshop Slides Available
Posted: July 20th, 2011
U.S. EPA has made available the presentations from the U.S. EPA Regional, State, and Local Dispersion Modelers Workshop (Workshop)…
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NESHAP Comment Periods Extended
Posted: July 15th, 2011
On July 1, 2011, U.S. EPA announced that it was extending the comment periods for two (2) rules: the proposed new National Emission Standards for Hazardous Air Pollutants (NESHAP) for Coal- and Oil-Fired Electric Utility Steam Generating Units (Utility MACT), […]
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A New Twist to Determining Applicability of Greenhouse Gas Regulations
Posted: July 11th, 2011
On July 1, 2011, U.S. EPA issued a final rule which, for a period of three (3) years, defers the consideration of CO2 emissions from bioenergy and other biogenic sources (biogenic CO2 emissions) when determining whether a stationary source meets […]
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ALL4’s: Is That Your Final Answer?
Posted: June 29th, 2011
Test your knowledge across the environmental field, on the building blocks of air quality rules, on ALL4 general trivia, and challenge you with brain teasers that have perplexed us…Take on ALL4’s Is That Your Final Answer?