4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Reflections from 2018 Year End Reporting – Part 5: Production Data Discrepancies
Posted: March 6th, 2019
Welcome to the last of a five-part blog series hosted by ALL4’s Continuous Monitoring Systems (CMS) Practice Area that looks back at some of the key points of discussion that came up while completing reports for the second half and […]
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Reflections from 2018 Year End Reporting – Part 4: DAHS Server Upgrades
Posted: March 6th, 2019
Welcome to the fourth of a five-part blog series hosted by ALL4’s Continuous Monitoring Systems (CMS) Practice Area that looks back at some of the key points of discussion that came up while completing reports for the second half and […]
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North Carolina Modeling Considerations
Posted: February 27th, 2019
In May and June 2018, North Carolina Department of Environmental Quality (NC DEQ) released various updates regarding air quality modeling for facilities located in North Carolina. The updates address the following topics. ♦ Modeling guidance for toxics -Guidance for quarries […]
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Reflections from 2018 Year End Reporting – Part 3: Temperature Monitoring Impacts on Data Validity
Posted: February 21st, 2019
Welcome to the third of a five-part blog series hosted by ALL4’s Continuous Monitoring Systems (CMS) Practice Area that looks back at some of the key points of discussion that came up while completing reports for the second half and […]
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Reflections from 2018 Year End Reporting – Part 2: Ancillary Analyzer Impacts on Data Validity
Posted: February 21st, 2019
Welcome to the second of a five-part blog series hosted by ALL4’s Continuous Monitoring Systems (CMS) Practice Area. If you missed Part 1, be sure to check it out here. In Part 2, we review how ancillary analyzers can affect […]
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Reflections from 2018 Year End Reporting – Part 1: Validation Sequence Impact on Data Validity
Posted: February 21st, 2019
Welcome to the first of a five-part blog series hosted by ALL4’s Continuous Monitoring Systems (CMS) Practice Area. Each blog will look back at some of the key technical issues that our team encountered while completing CMS reports for the […]
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Requirements to Include Formaldehyde in Volatile Organic Compound (VOC) Emissions
Posted: February 5th, 2019
On December 6, 2018, the New Jersey Department of Environmental Protection (NJDEP) presented at a regulatory update meeting. One of the topics discussed is the inclusion of formaldehyde in the calculation of volatile organic compound (VOC) emissions from spark ignited […]
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2019: Charting your own path!
Posted: January 31st, 2019
ALL4 recently wrapped up our annual company-wide “Complete/Create the Year” meeting. Prior to the meeting, employees were provided some thought-provoking questions to ponder as they reflected upon 2018 and began planning for 2019. One of my favorite segments of the […]
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New “Once In, Always In” NESHAP Guidance Published by TCEQ
Posted: January 28th, 2019
The Texas Commission on Environmental Quality (TCEQ) air quality staff were very busy during the fourth quarter of 2018, rolling out several new tools and policies related to New Source Review permitting and air quality dispersion modeling. In the midst […]
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One Year Later – What Challenges Have You Faced with Benzene Fenceline Monitoring?
Posted: January 24th, 2019
The Petroleum Refinery Sector Rule in 40 CFR 63, Subpart CC (National Emission Standards for Hazardous Air Pollutants from Petroleum Refineries or Refinery NESHAP) generally applies to all petroleum refineries in the United States. Did the monitoring program at your […]
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