4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
2015 Ozone NAAQS Implementation Update and Possible NOx Reductions for Portland Cement Kilns
Posted: October 8th, 2017
October 1, 2017 marked the date by which U.S. EPA was anticipated to promulgate final area designations (i.e., attainment or nonattainment) for the 2015 ozone National Ambient Air Quality Standard (NAAQS). U.S. EPA reduced the ozone NAAQS from 75 parts […]
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Sulfur Dioxide Data Requirements Rule Update: The Bell Signals the End of Round 3
Posted: September 17th, 2017
If you haven’t been keeping tabs, a lot has happened since our last update on our SO2 DRR page way back in January 2016. Most recently, U.S. EPA made final recommendations for attainment status for facilities in areas where air dispersion modeling was conducted (Round 3)…
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What’s the Status of the 2015 Ozone NAAQS and What Regulatory Relief Options Are Available for States Implementing Ozone Standards?
Posted: September 14th, 2017
On June 6, 2017 U.S. EPA Administrator Scott Pruitt proposed extending the deadline for promulgating the initial area designations for the 2015 ozone National Ambient Air Quality Standards (NAAQS) citing “insufficient information.” The “insufficient information…
Read articleTCEQ Posts Hurricane Harvey Response/Recovery Guidance
Posted: September 11th, 2017
We know many of you, including your colleagues, family, and friends, were affected by Hurricane Harvey and you have all been and will continue to be in ALL4’s thoughts. As the clean-up activities continue and facilities assess damage, begin start-up and return to normal operations…
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I (Heart) NY…and Its Meteorological Data Network
Posted: September 6th, 2017
Facilities in New York enjoy an air permitting advantage that is unavailable to facilities located in many other states: a dense network of meteorological data for use in air quality modeling evaluations. The Federal Department of Homeland Security worked with…
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Recent Court Decisions Require Assessment of Greenhouse Emissions from Power Plants
Posted: September 5th, 2017
President Trump’s March 28, 2017 Presidential Executive Order on Promoting Energy Independence and Economic Growth (Order) directed U.S. EPA to suspend, revise, or rescind various Obama-era regulations intended to regulate greenhouse gas (GHG) emissions…
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TCEQ Air Quality 101 Blog Series – Continuous Monitoring Systems (CMS)
Posted: September 5th, 2017
Close your eyes and imagine you are the conductor of a symphony orchestra. Now open them and come to grips with the fact that your orchestra is a Data Acquisition and Handling System (DAHS)! So have some fun with it…you are the conductor of an orchestra of probes/analyzers…
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Will the Changes to the PM CEMS QA/QC Requirements Impact my PM CPMS?
Posted: August 31st, 2017
The answer is probability not. U.S. EPA has recently revised certain quality assurance requirements for sources using particulate matter (PM) continuous emission monitoring systems (CEMS) under 40 CFR Part 60 Appendix F, Procedure 2 (P2). P2 includes quality…
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When You are No Longer the New Guy in Town: Eight Months After the Relocation
Posted: August 29th, 2017
In December 2016, I decided to take a risk that I had never taken before…I was going to move out of Pennsylvania. Pennsylvania is the state I grew up in, and I had lived in various parts of it throughout my first 22.5 years of life. However, I was attracted to the opportunity…
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RACT 2
Posted: August 22nd, 2017
With a compliance date of January 1, 2017, affected facilities operating within the Commonwealth of Pennsylvania will need to evaluate the applicability and impact of RACT 2 on their operations, assess the need to develop a RACT 2 proposal, and submit […]
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