4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Pennsylvania Proposes Amendments to Particulate Matter Testing Requirements
Posted: July 16th, 2012
The Pennsylvania Environmental Quality Board (EQB) has proposed to amend 25 Pa. Code Chapters 121 and 139 with the purpose of updating and clarifying the sampling and testing methods used to demonstrate compliance with particulate matter (PM) emissions limits.
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A New Addition (and a familiar face) at ALL4
Posted: July 10th, 2012
As I reflect on my excitement about beginning the next phase of my career with ALL4, I’m reminded of the saying “the more things change, the more things stay the same.” It’s hard to believe that it has been 18 years since my…
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U.S. EPA Adds New Exclusion to the Definition of Volatile Organic Compounds (VOCs)
Posted: July 9th, 2012
On June 22, 2012, a notice was published informing that the U.S. EPA revised its definition of volatile organic compounds (VOCs) to exclude 1,3,3,3-tetrafluoropropene.
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U.S. EPA Proposes Tighter Annual PM2.5 NAAQS and a New Secondary PM2.5 NAAQS
Posted: July 9th, 2012
U.S. EPA has proposed to tighten the annual NAAQS for PM2.5 because more studies have linked health issues with low levels of PM2.5 than were previously thought.
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Dan Holland’s Return to ALL4
Posted: July 3rd, 2012
If you take that recharged feeling that you get after a three-day weekend and multiply it by about 200 you will get the feeling that I have right now. After taking leave of ALL4 in December 2009, I am pleased to let you know that I have restarted my air quality consulting career.
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Public Comment on PADEP Draft Guidance for Performing Single Stationary Source Determinations for Oil and Gas Industries
Posted: July 2nd, 2012
The Pennsylvania Air Quality Technical Advisory Committee (AQTAC) met on Thursday June 14, 2012 and presented a summary of comments that they had received on their interim final technical guidance DEP ID: 270‐0810‐006 entitled “Guidance for Performing Single Stationary Source Determinations for Oil and Gas Industries.”
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ALL4’s: Is That Your Final Answer?
Posted: July 2nd, 2012
Test your knowledge across the environmental field, on the building blocks of air quality rules, on ALL4 general trivia, and with brain teasers that have perplexed us…Take on ALL4’s Is That Your Final Answer?
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Pennsylvania AQTAC Discusses Oil and Gas Related Topics at June 14, 2012 Meeting
Posted: June 28th, 2012
The Pennsylvania Air Quality Technical Advisory Committee (AQTAC) met on Thursday June 14, 2012 at the Pennsylvania Department of Environmental Protection (PADEP) Rachel Carson building in Harrisburg, Pennsylvania.
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How the SO2 NAAQS Came Crashing Down On Us
Posted: June 27th, 2012
The sulfur dioxide (SO2) landscape looked very different in 2008 than it does today. At that time, the annual, 24-hour, and 3-hour National Ambient Air Quality Standards (NAAQS) for SO2 had been in place for a long time. Except for […]
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Technical Writing 101: ALL4’s Ongoing Commitment to Education on the Job
Posted: June 25th, 2012
On June 18, 2012, a select group of ALL4 staff members had the pleasure of attending a Technical Writing Seminary held at ALL4’s Kimberton, PA office. Conducted by the efficient and extremely well organized Sandra Nutting of The Writing Center in West Chester, Pennsylvania, the course focused on the proper approach to writing clearly
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