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 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
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REGION 8
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1595 Wynkoop Street
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Denver, CO   80202-1129
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Phone 800-227-8917
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www.epa.gov/region8

Ref:  8ARD-PM

Ms. Martina Wilson							
Environmental Director
Office of Environmental Protection
Fort Peck Tribes 
P.O. Box 1027
Poplar, Montana  59255

Dear Ms. Wilson:

The U.S. Environmental Protection Agency Region 8 is proposing to issue a permit in accordance with the Tribal Minor New Source Review (MNSR) Permit Program at 40 CFR part 49, for the Montana Dakota Utilities Company's proposed installation of 3,285 horsepower diesel-fired emergency generator engine and a diesel fuel storage tank not to exceed 2,000 gallons to provide emergency power to an existing Poplar Oil Field Substation site, on Indian country lands within the Fort Peck Indian Reservation. The proposed permit establishes installation, configuration, operation and maintenance requirements for one compressor ignition internal combustion engine used to drive an emergency electric power generator and one horizontal diesel fuel storage tank. The proposed project is estimated to be a true minor source with respect to MNSR regulated pollutants.  

A public comment period for the proposed permit will begin on August 31, 2020, and end on September 30, 2020. 

The proposed permit and supporting documentation are available in the electronic docket at regulations.gov (Docket ID #EPA-R08-OAR-2020-0236), and we ask that you please assist members of the public who contact you with instructions on how to access the material available for public review until the end of the public comment period. Comments may be submitted via mail, via email to R8AirPermitting@epa.gov, or through https://www.regulations.gov (Docket ID #EPA-R08-OAR-2020-0236). In addition, we have provided copies of the bulletin board public notice announcement and would appreciate it if you could post this announcement in prominent locations in your area. All of these documents will also be available for review in electronic format on our website at: https://www.epa.gov/caa-permitting/caa-permit­ public-comment-opportunities-region-8. 
                                          









If you have any questions concerning the enclosed proposed permit or technical support documents, please contact Suman Kunwar, of my staff, at (303) 312-6095.   
                                          
                                       Sincerely,
                                                
                                      Carl Daly
                                      Acting Director
                                      Air and Radiation Division
                                      
                                      
Enclosures

