4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Oil and Gas System Greenhouse Gas Reporting—Where Do You Stand?
Posted: December 11th, 2011
U.S. EPA’s Mandatory Reporting of Greenhouse Gases Rule, codified at 40 CFR Part 98 (the GHG Reporting Rule), requires certain facilities to report annual emissions of greenhouse gases (GHG) including, as applicable, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), […]
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ALL4’s: Is That Your Final Answer?
Posted: November 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?
More Thoughts on SO2 NAAQS
Posted: November 20th, 2011
The public comment period for U.S. EPA’s draft dispersion modeling guidance for the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) is open until December 2, 2011. Since the guidance will lead to a significant and complicated undertaking […]
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Carbon Capture and Sequestration Deemed Not Cost Effective by DOE
Posted: November 17th, 2011
Since the beginning of 2011, major sources of greenhouse gas (GHG) emissions that trigger Prevention of Significant Deterioration (PSD) permitting have been required to implement Best Available Control Technology (BACT) for GHG emissions from new and modified sources. A recent […]
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Comment Period Extension for Proposed Oil and Gas NSPS/NESHAP Revisions
Posted: November 10th, 2011
In an October 28, 2011 Federal Register announcement, U.S. EPA extended the comment period for the proposed revisions to both the Standards of Performance for New Stationary Sources (NSPS) and National Emission Standards for Hazardous Air Pollutants (NESHAP) for the […]
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Stay Tuned…Again
Posted: November 4th, 2011
In two separate announcements made during the last week of October, U.S. EPA has delayed the release of two highly anticipated maximum achievable control technology (MACT) regulations. U.S. EPA announced that it would be delaying the release of the proposed […]
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ALL4’s: Is That Your Final Answer?
Posted: October 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?
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ALL4’s Employee Spotlight: Tom Saylor
Posted: October 27th, 2011
Learn about ALL4 Project Engineer Tom Saylor in his Employee Spotlight!
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Pennsylvania NOx Allowance Alert
Posted: October 23rd, 2011
For non-electric generation unit (non-EGU) sources that have either allowance surrender requirements or regulatory compliance options that allow the surrender of NOx allowances under Pennsylvania regulations, the new U.S. EPA Cross-State Air Pollution Rule (CSAPR) may render such requirements meaningless. […]
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Greenhouse Gas 2012 Reporting: No Rest for the Weary!
Posted: October 19th, 2011
U.S. EPA’s Greenhouse Gas (GHG) reporting deadline for calendar year 2010 passed on September 30, 2011. But there’s no rest for the weary! According to 40 CFR Part 98 (the Mandatory GHG Reporting Rule), data for reporting years 2011 and […]
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