INDUSTRY LEADERS IN AIR EMISSIONS COMPLIANCE
We help industrial plants comply with clean air regulations by providing Continuous Emissions Monitoring (CEM) solutions.
ESC Spectrum's Products and Services
Comprehensive Emissions Monitoring Guide for Refining and Petrochemical Facilities
Your go-to resource for compliance, technology, flaring, and regulatory insights for refinery emissions monitoring.
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Check out the highlights from our 2024 User Group event! We broke attendance records and hosted engaging training sessions designed to empower your team with the latest industry insights. Plus, explore our vendor showcase to discover cutting-edge products and solutions. Whether you were there or couldn’t make it, this recap has everything you need to stay informed.
Find out how ESC Spectrum keeps customers at facilities across the country happy, efficient and in compliance with regulations.
Explore StackVision, ESC Spectrum’s cutting-edge Data Acquisition System (DAS) designed for effortless environmental compliance. With real-time data monitoring, user-friendly customization, and superior reliability, StackVision helps facilities easily meet regulatory standards. Discover why it’s the go-to solution for over 3,100 air emissions sources.
In this video, you will learn a general overview of how a Continuous Emissions Monitoring System (CEMS) works. A CEMS provides an efficient and effective way to monitor stack emissions on a continuous basis and provide the EPA with the data needed to enforce mandated reductions in the number of pollutants emitted.
This video provides a general overview of how a Data Acquisition System (DAS) works. A DAS is a set of tools for continuously collecting and validating your emissions data for air compliance reporting. See how both hardware and software work together to continuously collect and validate air emissions monitoring data.
Latest Posts From The Source Blog

Understanding the Data Assessment Report (DAR) for CEMS Audits
The Data Assessment Report (DAR) is a crucial but often overlooked component of CEMS audit compliance. This guide breaks down what needs to be included, from quarterly accuracy results to EPA audit sample requirements, helping you keep up with regulations and streamline your reporting process.

Tail Gas Treatment Units (TGTUs): Essential for Sulfur Recovery
Read this post to discover how Tail Gas Treatment Units (TGTUs) help refineries meet stringent sulfur recovery and emissions control standards. This blog covers essential TGTU technologies, regulatory requirements, and the vital role that TGTUs play to improve sulfur recovery efficiency.

PM CEMS and PS-11 Compliance Explained: Best Practices for Reliable Particulate Matter Monitoring
Read this post for a deeper understanding of the certification requirements for PM CEMS, with a special emphasis on the PS-11 Correlation.

The Importance of Staged Flares and Valve Positioning in Refining Processes
This blog explores the critical role of staged flares and valve positioning in refining operations, highlighting their impact on emissions monitoring, compliance with EPA regulations, and overall operational efficiency through the use of StackVision DAS.

Understanding Thermal Oxidizers and Their Role in Emission Control: Key Insights for the Refining Industry
Learn how thermal oxidizers operate alongside data acquisition systems to ensure EPA compliance and accurate data collection in refineries.

ESC Spectrum Academy Launches CEMS Training to Streamline Technician Education
Designed with technicians’ busy schedules in mind, the self-paced, online CEMS training empowers techs to learn best practices without interrupting daily operations.

ESC Spectrum Launches Interim Reporting Services to Support Facilities with Temporary Help
ESC Spectrum is excited to introduce Interim Reporting Services, designed to help facilities maintain compliance during short-term staffing challenges. Our expert team provides support with data review, permit compliance, QA/QC management, and more—ensuring critical reporting obligations are met accurately and on time.