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Resource Library

Welcome to our resource library. Here you can locate useful information to read online or download for later user. We include articles written by our engineers and regulatory specialists, job aids, case studies, links to view past webinars, presentation slides from our semi-annual user group meetings and other events.

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Senior Regulatory Specialist Jon Konings’ guide to resources for those who are new to the world of continuous emissions monitoring systems (CEMS).


Recently, ESC Spectrum helped CAMD investigate a reporting discrepancy at a customer’s facility. Learn how this can be prevented using StackVision's Database Locking Wizard.


In 2012, the EPA mandated emission sources conducting relative accuracy test audits (RATAs) or stack tests under Part 75, Appendix E or § 75.19, must use an Air Emission Testing Body (AETB) that meets competency standards.


The Protocol Gas Verification Program (PGVP) was established to ensure the accuracy of calibration gases. Often, calibration gas from unapproved (or no longer approved) vendors goes unnoticed and results in invalid data during QA/AC checks.


The Q1 Reporting Period is underway! Units operating under the ARP, CSAPR, SIPNOX, TXSO2, RGGI, and MATS rule have until the end of the day on 4/30/2021 to report their Q1 QA and emissions data sets using the EPA's ECMPS client tool.


The Clean Air Market Division (CAMD) has undertaken a project to re-engineer or replace their current tool called ECMPS.


Just about every facility has a Title V Operating Permit or Renewable Operating Permit (ROP). Even a facility with a permit exemption often has a letter that explains exemption status on file with the local air management agency.


These helpful Audit preparation tips will provide you with a high-level review of your compliance program and areas related to CEMS or alternative monitoring plans.


Key Air Emission Compliance Lessons Learned


The COVID-19 pandemic had negative effects on everyone this year. Don't let audits catch you off guard in 2021.


The Final Proposed Revisions to the Mercury and Air Toxins Standards (MATS) Reporting Rule published on September 9, 2020 triggered a new approach to processing and reporting downtime events under the EGU MATS requirements.


This articles explains the difference in reporting downtime events after September 9, 2020.


Answers to questions during the Q&A portion of the Fall User Group online meetings.


Understand which special submission requirements you are subject to if your facility is using PM CEM systems to demonstrate compliance.


Be sure you understand how your CEM data system addresses the issue of daylight saving time. Your Quality Assurance Quality Control (QA/QC) plan should spell out that your data system always records time in standard time.


Read Part 2 of our two part article in Hydrocarbon Engineering.