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

**Patrick Flynn**  **75 Hawthorne**  **Street San**  **Francisco, CA**  **94105 September**  **30, 2016** 

**Vice President**  **Governmental and**  **Corporate Affairs**  **Resolute Natural** **Natural Resources,**  **LLC 1700**  **Lincoln Street,**  **Suite 2800**  **Denver, CO**  **80203 In**  **Reply Refer** **To: AIR-3** 

**NU 05-01** 

**Subject: McElmo**  **Creek Unit**  **Oil Production**  **Facility Final**  **PSD Permit**  **Decision Dear** **Mr. Flynn:**  **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-permitting/prevention-significa nt-deterioration-psd-permits-issued**  **region-9 ,**  **or at**  **http://www.regulations.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 comm**  **ented 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**

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**Gerardo C.**  **Rios Chief,**  **Permits Office**  **Air Division**