6 Strategies to Maximize CEMS Data Availability

A CEMS percent monitor availability (PMA) is a key component in determining how well a CEMS program is performing. If the PMA is below 95%, you may face consequences like additional reporting requirements for Part 60 facilities and more punitive data substitution values for Part 75 facilities.

Below, we detail 6 strategies you can implement to help you increase the CEMS PMA and reduce potential reporting and data replacement consequences.
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DAHS Updates for Part 75 XML Reporters

On Wednesday, September 11, 2019, EPA announced the 2019 Quarter 3 release of the ECMPS client tool. Included in this release are checks to allow reporting of system and component ID’s during periods of missing data. In reality, the changes are much more broad than that, and also include changes to formula ID’s, MODC and reporting of emissions data for combined cycle units with bypass stacks. The VIM Technologies development and compliance teams have been working closely with EPA since they originally announced these changes in March 2019.
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Factors to Consider When Replacing Your DAS

Your Data Acquisition System (DAS) helps to monitor emissions and keep your company compliant. When you determined it is time to replace your DAS there are several factors you need to take into consideration while moving forward with the upgrade. Discover some of the hidden challenges associated with the endeavor:

Infrastructure

Often overlooked, infrastructure can pose as a major hindrance to a successful DAS upgrade. Ethernet is the most common connection. You’ll want to make sure you have connectivity from all your monitoring locations that loops to one, central location. Incorporate the process group and IT team into the decision-making process to make sure every angle is covered. Evaluate current needs with those of the future in mind.

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5 Common DAS/CEMS Management Challenges and Solutions

When it comes to managing DAS and CEMS systems, there are some common challenges that arise. Compliance Managers must have access to the most current and thorough emissions data to ensure regulations are being met. Here are five common DAS and CEMS operations concerns and accompanying solutions:

1. Multiple Regulations

Combustion units are typically subject to multiple air regulatory programs. More often than not, different rules require different validations, averaging, calculations and/or reporting. Steps you can take to address this problem include fully understanding your company’s compliance obligations (NSPS, NESHAPS, Title V), determining if “harmonization” is permitted among the various programs, and checking DAS documentation and the QA/QC Plan to make sure you’re in compliance with all necessary validation and ongoing QA tests.

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