ESC is continuously focused on the safety of our employees and customers. Learn more about our COVID-19 response plan and find answers on frequently asked questions.        Learn More

November's One Page Tip

Published Oct 31, 2019


November's One Page Tip consists of planning for RATAs, actual RATA activities, and wrapping it all up.

When is the Next RATA Due, RATA Activities During the Day, and Let's Move On

Three separate One Page Tips (OPTs) have been developed covering RATAs because they are so important. These OPTs cover:

  • Pre-RATA Activities - When are the RATAs Due?
  • Day of RATA Activities
  • ​Wrapping It Up and Moving On

Preparation is the key to successfully passing a RATA and achieving good results.  Generating a copy of the “QA Test Status Report” in StackVision will provide many answers about the pending RATAs, plus other information about your RATA history, and other relevant information. 

Don’t forget to reach out to the other parties involved conducting a successful RATA, such as your operating team, the long term dispatch group, the stack testing team, and others. Frequently these dialogues need to begin weeks or even months in advance series. 

Don’t forget about getting the monitors and the other associated equipment ready (like the sample probe for example) for the RATA by completing any outstanding preventative maintenance activities. 

Review your in-house RATA procedures making sure you understand it and can answer questions from those whom you will work or interface with. 
Be sure to review the testing schedule for that day with the control room operator and the supervisory operating staff.  Having steady operating conditions should generate steady or consistent emissions conditions. 

Review with your stack testing lead person the overall strategy of how the RATA will be conducted. Discuss whether the gas or flow RATAs will be performed first, at what load, and how long each run will last. 

When the final test report is arrives from the stack testers, make sure it is complete. Compare their final RATA numbers and results against what you have enter in the “RATA Editor” in SV. Update the data in the RATA editor as necessary. 

If any bias adjustment factor (BAFs) are changed because of any updates you just made, you may need to re-run ProcessNow to apply these changes in the appropriate hourly data. Review your data processing procedures on the steps you need to follow to make these changes.  

Finally, take a moment to notice when the deadline is for the next RATA – is it 2-quarters or 4-quarters away?  
Click the link below to study Jon Konings's suggestions. 

View November's OPT Here!


If you have any questions, feel free to contact Jon Konings at or 512.250.7915