Is Your Ambient Monitoring Station Up-To-Date?
Posted: October 2019
What is the current status of your ambient monitoring station? Have your instruments been audited recently? Have the instruments been recalibrated and recertified? Is calibration and re-certification still supported on the instruments you have by the manufacturer or whoever you […]
Read MoreIs Your Facility in Compliance with the Updated Refrigerant Rules?
Posted: October 2019
U.S. EPA regulates refrigerant containing equipment, including motor vehicle air conditioners (MVAC), at 40 CFR Part 82 – Protection of Stratospheric Ozone. This rule is focused on minimizing the release of refrigerants to the atmosphere as they have the potential […]
Read MoreWhat Happened: Air Quality Bills to Watch in the 86th Texas Legislative Session
Posted: August 2019
In April 2019, I shared two articles regarding the legislative process in Texas. The first was an overview of the legislative process related to air-quality related bills considered during the 86th Texas Legislative Session (January 8, 2019 to May 27, […]
Read MoreQ&A With our Technical Director in Raleigh, NC – Amy Marshall
Posted: July 2019
Amy Marshall recently joined ALL4 as Technical Director, and has also opened an office in the Raleigh, NC* area. With 25 years of experience, Amy is well known to the regulated community. She started her career as a contractor for […]
Read MoreThe Ever-Evolving Science of Air Quality Modeling
Posted: June 2019
One of the reasons I’ve enjoyed air quality modeling during my 16-year career with ALL4 is because it’s an ever-evolving science. The air quality modeling that I was learning and conducting 16 years ago is vastly different than the air […]
Read MoreUpcoming Changes to the Turbine MACT With a Short Timeline to Comply
Posted: April 2019
On Friday, April 12, 2019, U.S. EPA proposed changes to the National Emission Standards for Hazardous Air Pollutants for Stationary Combustion Turbines [40 CFR 63, Subpart YYYY (Turbine MACT)] as a result of its risk and technology review (RTR). This […]
Read MoreWhat Makes a “Good Neighbor?”: A Look at Ozone Standards
Posted: March 2019
Since the government shutdown ended and many Federal programs that were hanging in the balance have returned to service, the impact on U.S. EPA is beginning to show. Our CFO, Kevin Romito, recently published an article giving some insight into […]
Read MoreThe Green New Deal: What Is It, Really?
Posted: March 2019
On Thursday, February 7th, 2019, Rep. Alexandria Ocasio-Cortez (D-NY) introduced H.Res.109, a resolution calling for a “Green New Deal”. There are many articles and opinion pieces floating around about the Green New Deal, so I thought taking an objective look […]
Read MoreRepresenting MSS Emissions in the Emissions Inventory
Posted: March 2019
A good portion of the Texas refineries are taking a deep breath as the Refinery Sector Rule (RSR) compliance date is behind us, but the work isn’t over yet. The end of January means the environmental reporting season is upon […]
Read MoreLegacy Planning
Posted: January 2019
It is our job at ALL4 to deliver technical expertise to our clients. When complicated technical decisions need to be made that involve capital spending and regulatory liability, we need to weigh those variables and arrive at a conclusion that […]
Read More