### RE: ATTACHMENT ATTACHMENT ATTACHMENT: Additional Info Needed for MCU AAQIR

Additional Info Needed for MCU AAQIR Andrew Chew Andrew Chew to: Dwight Mallory 12/05/2012 10:54 AM Cc: Shaheerah Kelly

Dwight,

I'm writing to acknowledge receipt and thank very much again. I was able to open all of the attachments without problems. Their contents will help me in the permit write-up. We'll talk soon.

- Andrew

------------------------------------------- Andrew Chew, P.E. T: (415) 947-4197 | F: (415) 947-3579 | chew.andrew@epa.gov U.S. EPA, Region 9, Air Permits Office (AIR-3) | 75 Hawthorne St., San Francisco, CA 94105

Dwight Mallory 12/04/2012 11:38:01 AM

Andrew, In the attached Word document you will...

From: Dwight Mallory <Dmallory@resoluteenergy.com> To: Andrew Chew/R9/USEPA/US@EPA, Cc: Shaheerah Kelly/R9/USEPA/US@EPA Date: 12/04/2012 11:38 AM Subject: RE: ATTACHMENT: Additional Info Needed for MCU AAQIR



### Andrew,

In the attached Word document you will find a list of the questions from your October 30 email, followed by a brief response to each one. The attached Xcel file includes a summary worksheet with the individual emissions unit and facility-wide actual and PTE emissions estimates. Also attached are pdf files with the GLYCalc input and aggregate reports for the dehydrator PTE and 2011 actual emissions, as well as pdf prints of the EPA Tanks reports for the gasoline storage tank.

I apologize for running a few days beyond the one-month response time we discussed. For reasons explained in the attachments, I ended up having to revisit the Main Flare tons per year PTE figures submitted with the 2008 PSD application and it took a bit longer than I anticipated.

I spoke with Tom Hormel at McVehil-Monnett yesterday concerning the Level II modeling that Don Shepherd at NPS requested. He said he has finished the modeling and should get the final report out to Mr. Shepherd and the rest of us in the next week.

I’ll touch base with you when the modeling report gets here. In the meantime, let me know if you need anything else.

Dwight E. Mallory Environmental, Health & Safety Coordinator Resolute Energy Corporation 1675 Broadway, Suite 1950 Denver, CO 80202 Direct: 303-573-4886 X 1165 Cell: 970-302-8620Email: dmallory @ ResoluteEnergy

. com

From: Chew.Andrew@epamail.epa.gov [mailto:Chew.Andrew@epamail.epa.gov] Sent: Tuesday , October 30, 2012 10:33 AM To: Dwight Mallory Cc: Kelly.Shaheerah@epamail.epa.gov Subject: ATTACHMENT: Additional Info Needed for MCU AAQIR

Hi Dwight,

Shaheerah is peer-reviewing my write-up for the dra ft flare permit and we need the following informati on available when we are ready to public notice the pe rmit. Hope it works for you if we can get the information from you within a month's timeframe. A lso, can you let me know how things are going with the modeled impacts for Hovenweep that Don Shepherd at the National Park Service asked for? Thanks again for your help.

- Andrew

------------------------------------------- Andrew Chew, P.E. T: (415) 947-4197 | F: (415) 947-3579 | chew

. andrew @ epa

. gov U.S. EPA, Region 9, Air Permits Office (AIR-3) | 75 Hawthorne St., San Francisco, CA 94105

----- Forwarded by Andrew Chew/R9/USEPA/US on 10/30 /2012 09:23 AM -----

From: Shaheerah Kelly/R9/USEPA/US

To: Andrew Chew

/R9/USEPA/US@EPA

Date: 10/29/2012 12:14 PM Subject: Additional Info Needed for MCU AAQIR

Hi Andrew,

Here is the additional info that is needed to fill in some of the gaps for the MCU AAQIR PSD permit amendment. It would be very helpful if you could ge t this info from Resolute and find out if the compa ny can provide this info within the next month or so. Thanks.

1) Provide facility- wide actual emissions and PTE estimates for SO 2, CO, NOX, VOC , PM, PM10. and PM2.5. Section 3 of the 2008 PSD application provid es emissions info for the Main Flare only.

2) Provide actual emissions and PTE estimates for S O2, CO, NOX, VOC , PM, PM10. and PM2.5 for the following emission units. Section 3 of the 2008 PSD application provides emissions info for the Main F lare only. TEG Reboiler (0.33 MMBtu/hr) - Operational  Main Flare (618,104 scf/hr) - Operational  Gasoline Storage Tank (1000 gallons) - Operational  Glycol Heater (rated size/capacity?) - Operational 3) Verify the accuracy of the rated sizes /capacities of the following emission units, and pr ovide the rated

sizes/capacities where none is identified. TEG Reboiler (0.33 MMBtu/hr) - Operational  Main Flare (618,104 scf/hr) - Operational  Gasoline Storage Tank (1000 gallons) - Operational  Glycol Heater (rated size/capacity?) - Operational 

4) Verify the accuracy of the following information re garding the operational status of (i) the emissions units listed in the current PSD permit and (ii) the other operations at the MCU facility.

Equipment in current MCU Facility PSD Permit lasted amended in 1991: T4500 Gas Turbine (4390 HP) - Shutdown 1997  Waste Heat Recovery Unit (11 MMBtu/hr) - Shutdown 1 997  Ingersoll Rand IC Engine (491 HP) - Shutdown 1993  Fairbanks Morse IC Engine (1712 HP) - Shutdown 1997  Fairbanks Morse IC Engine (1712 HP) - Shutdown 1997  Fairbanks Morse IC Engine (1848 HP) - Shutdown 1997  Fairbanks Morse IC Engine (1848 HP) - Shutdown 1997  DPC-540 IC Engine (470 HP) - Shutdown 1998  HC Liquid Reboiler (1 MMBtu/hr) - Shutdown 1993  Heat Medium Heater (4 MMBtu/hr) - Shutdown 1993  Heat Medium Heater (12.2 MMBtu/hr) -Shutdown 1991  TEG Reboiler (0.33 MMBtu/hr) - Operational  TEG Reboiler (0.33 MMBtu/hr) - Shutdown 1991  TEG Reboiler (0.33 MMBtu/hr) - Shutdown 1991  TEG Reboiler (0.1 MMBtu/hr) - Shutdown 1991  Other Operations at the MCU Facility: Natural Gas Liquids Processing - Shutdown 1998  Natural Gas Processing Facility - Shutdown 1998  Main Flare (618,104 scf/hr) - Operational  Gasoline Storage Tank - Shutdown 1993  Gasoline Storage Tank - Shutdown 1993  Gasoline Storage Tank (1000 gallons) - Operational  Diesel Storage Tank - Shutdown 1993  CO2 line heater - Shutdown 2004  Glycol Heater - Operational 

5) EPA was provided the attached description of the MCU facility by Mobil in the past. Please verify t he accuracy of this information and clarify whether it is acceptable to use this description as part of t he PSD application

************************************ Shaheerah Kelly, Environmental Engineer U.S. Environmental Protection Agency, Region 9 Permits Office, Air Division San Francisco, CA 94105 Phone: 415-947-4156Fax: 415-947-3579

Email: kelly

. shaheerah @ epa

. gov [ attachment " Response to 10-30-12 Questions

. docx " deleted by Andrew Chew / R 9 / USEPA / US ] [ attachment " Revised Facility Emissions

. xlsx " deleted by Andrew Chew / R 9 / USEPA / US ] [ attachment " MCU

_ DEHY

_ PTE

_ Input

. pdf " deleted by Andrew Chew / R 9 / USEPA / US ] [ attachment " Fuel Tank 2011 Est

. pdf " deleted by Andrew Chew / R 9 / USEPA / US ] [ attachment " Fuel Tank PTE

. pdf " deleted by Andrew Chew / R 9 / USEPA / US ] [ attachment

" MCU

_ DEHY

_ 2011

. pdf " deleted by Andrew Chew / R 9 / USEPA / US ] [ attachment

" MCU

_ DEHY

_ 2011

_ Input

. pdf " deleted by Andrew Chew / R 9 / USEPA / US ] [ attachment

" MCU

_ DEHY

_ PTE

. pdf " deleted by Andrew Chew / R 9 / USEPA / US ]