The Source Blog

Welcome to The Source, ESC Spectrum's air emissions compliance blog.

After 50 years in the air emissions compliance industry, we’ve seen it all. We are passionate about helping people comply with clean air regulations and believe in sharing what we’ve learned with others.  The Source blog provides explanations and advice regarding federal, state, and local regulations, Continuous Emissions Monitoring Systems (CEMS) best practices, audit checklists, case studies, news, and more. Want to suggest a blog topic or participate in a case study? We would love to hear from you.

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CEMS Audit Prep Checklist

Quick CEMS Audit Prep Checklist

Use our quick checklist to pass an EPA CEMS audit of your facility. Use a proven CEMS DAS like StackVision and Prism for critical data and have current information about your designated representative, record keeping, QA/QC plan, permit & acid rain program at hand.

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Bridging the RSR Compliance Gap: Part 2

This article appeared in Hydrocarbon Engineering’s August 2020 issue. This article focuses on US EPA approved alternative 131 (ALT 131). ALT 131 allows for total calibration cylinder net heating value (NHV) as an alternative to the PS-9 requirement that specifies calibration and calibration check individual component agreement.

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NOx Correlation Checklist

NOx Correlation Testing Checklist

Facilities have in-house procedures for NOx Correlation Testing, as required by the Environmental Protection Agency. As with all procedures, preparation for NOx Correlation Testing is extremely important. Use this pre-testing checklist for assistance.

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Bridging the RSR Compliance Gap: Part 1

In this article, which appeared in Hydrocarbon Engineering’s July 2020 issue, you’ll learn how, with the introduction of RSR and the copious amounts of data now required for compliance, many refineries are turning to a data acquisition system like Stackvision to meet regulatory requirements.

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Learn what's new In the ESC Spectrum FleXReports Version 1.3 in this webinar run by Senior Systems and Database Administrator, Daniel Frome.