Badger owns and operates a fuel grade ethanol dry mill production facility at 820 West 17th Street, Monroe, Wisconsin (the Facility).The Facility includes two natural gas-fired dried distillers grains with soluble (DDGS) dryers (identified as Dryer A and Dryer B). Dryer AÂs emissions are controlled by a Regenerative Thermal Oxidizer followed by a Thermal Oxidizer followed by a Waste Heat Boiler. Dryer BÂs emissions are controlled by a Thermal Oxidizer followed by a Waste Heat Boiler. All emissions exhaust to stack S10. On January 5, 2005, the WDNR issued Air Pollution Control Operation Permit No. #123038080-F01 (FESOP) to Badger for the Facility. This FESOP expired on January 5, 2010. Badger applied for a renewal on June 24, 2009, and FESOP No. 123038080-F01 is active as WDNR has not acted upon the renewal permit application. Part I.A.5. of the FESOP Permit No. # 123038080-F01 prohibits Process P10 from emitting NOX in excess of 0.10 pound per million BTU heat input. On October 27, 2011, Badger submitted a quarterly CEMS report for July 1 through September 30, 2011. The 3rd quarter NOx emissions report submitted to EPA, showed that NOx emissions from Process P10 (Dryers A and B and the associated control equipment) were 0.113 lb per million BTU heat input based on the 30 day rolling averages from August 7 through September 8, 2011.
Badger spent $196,600 for the root cause analysis and system upgrades to control NOx emissions. Under the terms of the settlement i