This page contains access to the minor NSR permit application, air quality modeling files and other supporting documentation for the minor modification at the American Gilsonite Company - Cottonwood Mine Site, located on Indian country lands within the Uintah and Ouray Indian Reservation in Utah. The proposed permit and supporting documentation were available for public comment through 5:00 p.m. MT on October 23, 2020, and no public comments were received. Therefore, the final permit was issued and immediately effective on November 3, 2020.
Note: Due to file type restrictions, the modeling files and application are posted on this page, while other supporting documentation may be accessed in regulations.gov in the docket for this permit action, Docket #EPA-R08-OAR-2020-0149.
American Gilsonite Company - Cottonwood Mine Site: AERSCREEN Files(113 K, August 12, 2020)You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- American Gilsonite Company - Cottonwood Mine Site: MNSR Permit Application (PDF)(84 pp, 6 MB, August 12, 2020)