**UNITED STATES**  **ENVIRONMENTAL PROTECTION**  **AGENCY REGION**  **IX**

**Bill Todachennie**  **P. 0.**  **Box 290**  **Montezuma Creek,**  **UT 84534-0290**  **75 Hawthorne**  **Street San**  **Francisco, CA**  **94105 September**  **30, 2016**  **In Reply**  **Refer To:**  **AIR-3**

**NU 05-01** 



### Subject: **McElmo Creek** **Unit Oil** **Production Facility**  **Final PSD**  **Permit Decision**  **Dear Mr.**  **Todachennie: You**  **are receiving**  **this letter**  **for one**  **of the**  **following reasons:**  **1) You**  **provided timely**  **written comments**  **or oral**  **testimony to**  **the U.S.**  **Environmental Protection**  **Agency (EPA)**  **regarding the**  **proposed Clean**  **Air Act**  **Prevention of**  **Significant Deterioration**  **(PSD) permit**  **amendment for**  **the McElmo**  **Creek Unit**  **Oil Production**  **Facility (MCU** **Facility), an**  **existing oil**  **and gas**  **production operation** **that is**  **owned, in**  **partnership with**  **Navajo Nation**  **Oil and**  **Gas Company,**  **and operated**  **by the**  **Resolute Natural**  **Resources Company**  **(Resolute); or**  **2) You**  **requested notice**  **of the**  **final permit**  **decision. Enclosed**  **please find**  **the final**  **permit decision,**  **which includes**  **the final**  **PSD permit**  **amendment and**  **our responses**  **to public**  **comments, and**  **our notice**  **announcing the**  **final permit**  **decision. The**  **final PSD**  **permit amendment,**  **our responses**  **to public comments,**  **and other**  **key documents**  **relevant to**  **the final**  **permit are**  **also available**  **through a**  **link at**  **our website,**  **http://www.epa.gov/caa-permitt ing/prevention-significant-deterioration-psd-permits-issued**  **region-9 ,**  **or at**  **http://www.regula tions.gov**  **(search: EPA-R09-0AR-2014-0785).**  **In accordance**  **with 40**  **CFR 124.15,**  **this permit**  **will become**  **effective thirty**  **(30) days**  **after the**  **EPA has** **provided notice**  **of the**  **final decision,**  **unless the** **permit is**  **timely appealed.**  **Pursuant to**  **40 CFR**  **124.19, any**  **person who**  **commented on the**  **proposed permit**  **or participated**  **in the**  **public hearing**  **on the**  **proposed permit**  **may appeal**  **the decision**  **and permit**  **conditions to**  **the Environmental**  **Appeals Board**  **(EAB) within**  **30 days after the EPA has**  **provided notice**  **of the**  **final permit decision.**  **Any person**  **who failed**  **to file comments**  **or failed**  **to participate**  **in the**  **public hearing on**  **the proposed**  **PSD permit**  **revision may** **file an**  **appeal with the**  **EAB only**  **regarding changes**  **from the**  **proposed to**  **the final**  **permit decision.** 

### If**you have**  **any questions**  **about this** **final action,**  **please do**  **not hesitate**  **to contact**  **Shaheerah**

**Kelly of** **the Air** **Permits Office**  **at (415)**  **947-4156 or** **r9airpermits@epa**
**. gov** **.**

**Enclosure**



### 2**Sincerely,**

**Chief, Permits**  **Office Air** **Division**