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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

Mr. Mike Natchees
Director, Air Quality Program
Energy and Minerals Division 
Ute Indian Tribe
P.O. Box 70
Fort Duchesne, Utah  84026

Dear Mr. Natchees:

The U.S. Environmental Protection Agency Region 8 is proposing to issue a synthetic minor permit for the existing Anadarko Uintah Midstream, LLC. (Anadarko), Willow Creek Compressor Station on the Uintah and Ouray Indian Reservation. As requested by Anadarko, this permit would incorporate enforceable requirements for the installation and operation of four field gas fired, 4-stroke, lean-burn compressor engines using catalytic emissions control systems and to install and operate two low-emission glycol dehydration units. Anadarko also requested enforceable requirements to install and operator only instrument air-driven or low-bleed (or no-bleed) pneumatic controllers. This permit is only intended to incorporate requested emission limits and provisions from the permit application for existing emissions units operating at the facility.

A public comment period for the proposed permit will begin on July 30, 2019, and end on 
August 28, 2019.

We have enclosed a CD and paper copy containing the proposed permit and supporting documentation, and we ask that you please make this 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-2018-0334). In addition, we have provided copies of the bulletin board public notice announcement and would appreciate it if you would 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-permit­public-comment-opportunities-region-8.
                                          
                                          
                                          
                                          
                                          
                                          
                                          
                                          
                                          
                                          

If you have any questions concerning the enclosed proposed permit or technical support documents, please contact Gregory Lohrke, of my staff, at (303) 312-6396.   
                                          
                                       Sincerely,
                                    
                                      Carl Daly
                                      Acting Director
                                      Air and Radiation Division
                                      
                                      
Enclosures

