4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
A New Pennsylvania RACT Rulemaking is on the Way
Posted: May 8th, 2011
The Pennsylvania Department of Environmental Protection (PADEP) has announced that they will be revising their Reasonably Available Control Technology (RACT) regulations in 25 Pa. Code Chapter 129 for control of major sources of nitrogen oxides (NOx) and volatile organic compounds […]
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Introducing Slade’s Corner
Posted: May 5th, 2011
U.S. EPA has once again ventured into new, and this time somewhat troubling, territory. Lisa Jackson, U.S. EPA Administrator and previous official with the State of New Jersey, has proposed to grant a petition filed by the State of New […]
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All This Has Happened Before, and It Will Happen Again…
Posted: May 3rd, 2011
As every avid reader of 4 The Record knows, U.S. EPA published four (4) new rules that are all interrelated and that will affect boilers and process heaters everywhere. Two of the four rules are intended to reduce emissions of toxic air […]
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ALL4’s: Is That Your Final Answer?
Posted: April 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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Proposal to Defer Emissions from Bioenergy and Other Biogenic Sources
Posted: April 20th, 2011
It will hardly come as news that since January 2, 2011, stationary sources planning to either perform major modifications or build new facilities have been required to consider greenhouse gas (GHG) emissions during the process of obtaining their pre-construction permits. […]
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EPA Provides New Source Review (NSR) “Netting” Guidance
Posted: April 17th, 2011
In a recent letter dated April 4, 2011 to the Indiana Department of Environmental Management (IDEM), U.S. EPA clarified its position on conducting “Step 2” of a New Source Review (NSR) permitting applicability analysis (determine the net emissions increase). This […]
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More Changes to Subpart ZZZZ
Posted: April 10th, 2011
On March 9, 2011, U.S. EPA published direct final changes to 40 CFR Part 63, Subpart ZZZZ – National Emission Standards for Hazardous Air Pollutants for Reciprocating Internal Combustion Engines (RICE MACT) in the Federal Register. The changes to the rule […]
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U.S. EPA Provides SO2 NAAQS “Implementation” Guidance
Posted: April 4th, 2011
On March 25, 2011, U.S. EPA released guidance on the implementation process for the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS). The 1-hour SO2 NAAQS was promulgated in June 2010. As part of the NAAQS implementation process, […]
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ALL4’s: Is That Your Final Answer?
Posted: March 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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Source Specific Ambient SO2 Monitoring vs. Air Quality Modeling for 1-Hour SO2 NAAQS Designations
Posted: March 26th, 2011
As part of the preamble of the new 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS), U.S. EPA outlined new NAAQS implementation procedures that will require certain facilities to be evaluated using refined air dispersion modeling with U.S. […]
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