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

Dwight Mallory Dwight Mallory to: Andrew Chew 10/30/2012 01:31 PM

Cc: Shaheerah Kelly, Patrick Flynn

Andrew,

I wanted to acknowledge receipt of your email and let you know it 

should be no problem to get you the requested information by the end 

of November. 

In reference to the modeled impacts for Hovenweep; we were unable 

to “screen out” using VISCREEN and the Level-I visibility analysis so I 

asked McVehil Monnett and Associates to complete a Level-II visibility 

analysis using AERMOD and coordinate with Mr. Shepherd. I spoke with 

Tom Hormel at McVehil about a week ago and he said he ran into some 

issues getting the hourly P-G stability class information necessary for 

the Level-II analysis, but that he expects to have the analysis done early 

this week.

I’ll send you the requested data and screening analysis and I’ll copy 

Shaheerah on everything I send. Please let me know if you need 

anything else in the meantime.

Dwight E. Mallory

Environmental, Health & Safety Coordinator

Resolute Energy Corporation

1675 Broadway, Suite 1950

Denver, CO 80202

Direct: 303-573-4886 X 1165

Cell: 970-302-8620

Email: dmallory@ResoluteEnergy.com

From: Chew.Andrew@epamail.epa.gov [

mailto:Chew.Andrew@epamail.epa.gov] 

Sent: Tuesday, October 30, 2012 10:32 AM

To: Dwight Mallory

Cc: Kelly.Shaheerah@epamail.epa.gov

Subject: Fw: Additional Info Needed for MCU AAQIR

Hi Dwight,

Shaheerah is peer-reviewing my write-up for the draft flare permit and we 

need the following information available when we are ready to public 

notice the permit. Hope it works for you if we can get the information 

from you within a month's timeframe. Also, 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 get this info from Resolute and find out if the company can provide 

this info within the next month or so. Thanks.

1) Provide facility-wide actual emissions and PTE estimates for SO2, 

CO, NOX, VOC, PM, PM10. and PM2.5. Section 3 of the 2008 PSD 

application provides emissions info for the Main Flare only. 

2) Provide actual emissions and PTE estimates for SO2, 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 Flare 

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 provide 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 regarding 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 1997

 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 the accuracy of this information and 

clarify whether it is acceptable to use this description as part of the PSD 

application

[attachment "MCU Summary.pdf" deleted by Andrew 

Chew/R9/USEPA/US] 

************************************

Shaheerah Kelly, Environmental Engineer

U.S. Environmental Protection Agency, Region 9

Permits Office, Air Division 

San Francisco, CA 94105

Phone: 415-947-4156

Fax: 415-947-3579

Email: kelly.shaheerah@epa.gov