### {In Archive} ExxonMobil MCU Shaheerah Kelly to: christopherjlee, mohanrasthana, morrismuskett 07/18/2005 08:54 AM

From: Shaheerah Kelly/R9/USEPA/US
To: christopherjlee@navajo.org, mohanrasthana@navajo.org, morrismuskett@navajo.org, Archive: This message is being viewed in an archive.



### Shaheerah Kelly Air Division, Permits Office U S EPA Region IX 75 Hawthorne Street San Francisco, CA 94105 Phone: 415-947-4156 Fax: 415-947-3579 ----- Forwarded by Shaheerah Kelly/R9/USEPA/US on 07/18/2005 08:54 AM ----- j ennifer.wilder@exxonmobil.c

om
06/10/2004 01:59 PM To Shaheerah Fateen/R9/USEPA/US@EPA

cc neil. j .ryan@exxonmobil.com, christopher.w.armstrong@exxonmobil.com, irene.t.garcia@exxonmobil.com Subject Re: Information Request - ExxonMobil MCU



### Shareerah

In response to your recent e-mail, please find below the equipment and emission information you requested concerning the MCU field operations outside of the McElmo Creek Unit ("MCU") former gas processing plant. This distinction is important, as the former gas processing plant and the field operations at MCU are separate sources for purposes of the PSD, Title V and Title III Clean Air Act programs. This is supported by the fact that the currently applicable PSD permit applies to the former gas processing plant only and does not apply to field operations, including tank batteries, satellite locations and individual well locations that were in place prior to the plant. In addition, it is important to note that Clean Air Act Section 112(n)(4) clearly states that E & P equipment/operation emissions cannot be aggregated to establish a "major source". Thus, the emissions from these facilities should not be aggregated for purposes of determining the applicability of the PSD, Title V or Title III programs at MCU.

Included in the spreadsheet below are the battery locations, emissions from 2000-2003 for all four batteries along with PTE calculations. Please note, the Heaters at each battery are only used in the winter months. Tank emissions were calculated using Vasquez-Beggs and Tanks 4.0. I will fax over flow diagrams and gas analyses for each battery.

Please let me know if you have any questions.

(See attached file: MCU field emissions.xls)

### Jennifer Wilder Bair d Compliance Engineer ExxonMobil Production Company Office: (281) 654-1135 Fax: (281) 654-1147 jennifer.wilder@exxonmobil.comBattery 1Section: NWNE 6, Township: 41S, Range: 25EHeaterHeater HeaterRun TankOil StorageTankOil StorageTankSkim Tank Skim Tank Skim Tank Skim TankSlop OilTankSlop OilTankSlop OilTankFugitivesTotalsTPYn/a n/a n/a VRU VRU VRU VRU VRU VRU VRU VRU VRU VRU(TPY)1.5 MMBTU/hr 1.25 MMBTU/hr 1.0 MMBTU/hr 1000 bbl 1000 bbl 1000 bbl 1000 bbl 400 bbl 400 bbl 400 bbl 500 bbl 500 bbl 500 bblPTE*(6570 hrs) (6570 hrs) (6570 hrs)(2289 BOPD) (2289 BOPD) (2289 BOPD) (120 BOPD) (120 BOPD) (120 BOPD) (120 BOPD) (200 BOPD) (200 BOPD) (200 BOPD)(TPY)NOx 11.35 9.46 7.5728.38SO2 0.07 0.06 0.050.17VOC 0.64 0.53 0.43 4.33 0.44 0.44 0.11 0.06 0.06 0.06 0.10 0.10 0.10 2.6710.08CO 9.70 8.08 6.4724.24PM10 0.83 0.69 0.552.07*Values used for PTE are listed below - tanks volumes = 2000 volumes x 1.2)20034380 hrs 175.2 hrs 4380 hrs1213 BOPD 1213 BOPD 1213 BOPD 50 BOPD 50 BOPD 50 BOPD 50 BOPD 100 BOPD 100 BOPD0(TPY)NOx 7.569 0.252 5.04612.87SO2 0.046 0.002 0.030.08VOC 0.426 0.014 0.284 2.34 0.56 0.56 0.088 0.053 0.053 0.053 0.085 0.085 0 2.677.27CO 6.465 0.215 4.3110.99PM10 0.552 0.018 0.3680.9420024380 hrs 175.2 hrs 4380 hrs1520 BOPD 1520 BOPD 1520 BOPD 50 BOPD 50 BOPD 50 BOPD 50 BOPD 100 BOPD 100 BOPD0(TPY)NOx 7.569 0.252 5.04612.87SO2 0.046 0.002 0.030.08VOC 0.426 0.014 0.284 2.9 0.32 0.32 0.088 0.053 0.053 0.053 0.085 0.085 0 2.677.35CO 6.465 0.215 4.3110.99PM10 0.552 0.018 0.3680.9420014380 hrs 175.2 hrs 4380 hrs1628 BOPD 1628 BOPD 1628 BOPD 50 BOPD 50 BOPD 50 BOPD 50 BOPD 100 BOPD 100 BOPD0(TPY)NOx 7.569 0.252 5.04612.87SO2 0.046 0.002 0.030.08VOC 0.426 0.014 0.284 3.1 0.34 0.34 0.088 0.053 0.053 0.053 0.085 0.085 0 2.677.59CO 6.465 0.215 4.3110.99PM10 0.552 0.018 0.3680.9420004380 hrs 175.2 hrs 4380 hrs1906 BOPD 1906 BOPD 1906 BOPD 60 BOPD 60 BOPD 60 BOPD 60 BOPD 120 BOPD 120 BOPD0(TPY)NOx 7.569 0.252 5.04612.87SO2 0.046 0.002 0.030.08VOC 0.426 0.014 0.284 3.62 0.38 0.38 0.097 0.053 0.053 0.053 0.087 0.087 0 2.678.20CO 6.465 0.215 4.3110.99PM10 0.552 0.018 0.3680.94

## Battery 2 Section: NWSE 4, Township: 41S, Range: 25E

Heater Heater Run Tank Oil Storage Tank Skim Tank Fugitives 

### Totals TP Y n/a n/a VRU VRU VRU (TPY) 1.5 MMBTU/hr 1.5 MMBTU/hr 1500 bbl 1500 bbl 400 bbl



### PTE* (6570 hrs) (6570 hrs) (1646 BOPD) (1646 BOPD) (60 BOPD) 

### (TPY) NOx 11.35 11.35 22.71 SO2 0.07 0.07 0.14 VOC 0.64 0.64 3.21 0.41 0.053 2.31 7.26 CO 9.70 9.70 19.39 PM10 0.83 0.83 1.66 *Values used for PTE are listed below - tanks volumes = 2000 volumes x 1.2)

2003 4380 hrs 4380 hrs (1021 BOPD) (1021 BOPD) (40 BOPD) 

### (TPY) NOx 7.569 7.569 15.14 SO2 0.046 0.046 0.09 VOC 0.426 0.426 2.044 0.31 0.050 2.31 5.57 CO 6.465 6.465 12.93 PM10 0.552 0.552 1.10

2002 4380 hrs 4380 hrs (1255 BOPD) (1255 BOPD) (40 BOPD) 

### (TPY) NOx 7.569 7.569 15.14 SO2 0.046 0.046 0.09 VOC 0.426 0.426 2.48 0.35 0.050 2.31 6.04 CO 6.465 6.465 12.93 PM10 0.552 0.552 1.10

2001 4380 hrs 4380 hrs (1274 BOPD) (1274 BOPD) (40 BOPD) 

### (TPY) NOx 7.569 7.569 15.14 SO2 0.046 0.046 0.09 VOC 0.426 0.426 2.51 0.35 2.31 6.02 CO 6.465 6.465 12.93 PM10 0.552 0.552 1.10

2000 4380 hrs 4380 hrs (1372 BOPD) (1372 BOPD) (50 BOPD) 

### (TPY) NOx 7.569 7.569 15.14 SO2 0.046 0.046 0.09 VOC 0.426 0.426 2.71 0.38 0.053 2.31 6.31 CO 6.465 6.465 12.93 PM10 0.552 0.552 1.10

### Battery 4 Section: NWSE 7, Township: 41S, Range: 25E

Heater Heater Run Tank Oil Storage Tank Skim Tank Fugitives Totals TPY n/a n/a VRU VRU VRU (TPY) 1.25 MMBTU/hr 1.25 MMBTU/hr 1500 bbl 1500 bbl 400 bbl

PTE* (6570 hrs) (6570 hrs) (1408 BOPD) (1408 BOPD) (60 BOPD) (TPY) NOx 9.46 9.46 18.92 SO2 0.06 0.06 0.11 VOC 0.53 0.53 2.57 0.37 0.053 2.22 6.28 CO 8.08 8.08 16.16 PM10 0.69 0.69 1.38 *Values used for PTE are listed below - tanks volumes = 2000 volumes x 1.2)

2003 4380 hrs 4380 hrs 875 BOPD 875 BOPD 40 BOPD (TPY) NOx 6.307 6.307 12.61 SO2 0.038 0.038 0.08 VOC 0.355 0.355 1.67 0.29 0.050 2.22 4.94 CO 5.387 5.387 10.77 PM10 0.46 0.46 0.92

2002 4380 hrs 4380 hrs 960 BOPD 960 BOPD 40 BOPD (TPY) NOx 6.307 6.307 12.61 SO2 0.038 0.038 0.08 VOC 0.355 0.355 1.83 0.31 0.050 2.22 5.12 CO 5.387 5.387 10.77 PM10 0.46 0.46 0.92

2001 4380 hrs 4380 hrs 1117 BOPD 1117 BOPD 40 BOPD (TPY) NOx 6.307 6.307 12.61 SO2 0.038 0.038 0.08 VOC 0.355 0.355 2.09 0.33 0.050 2.22 5.40 CO 5.387 5.387 10.77 PM10 0.46 0.46 0.92

2000 4380 hrs 4380 hrs 1174 BOPD 1174 BOPD 50 BOPD (TPY) NOx 6.307 6.307 12.61 SO2 0.038 0.038 0.08 VOC 0.355 0.355 2.19 0.34 0.053 2.22 5.52 CO 5.387 5.387 10.77 PM10 0.46 0.46 0.92

## Battery 6 Section: NWSE 13, Township: 41S, Range: 24E

Heater Run Tank Oil Storage Tank Skim Tank Fugitives 

### Totals TP Y n/a VRU VRU VRU (TPY) 1.5 MMBTU/hr 1500 bbl 1500 bbl 400 bbl



### PTE* (6570 hrs) (931 BOPD) (931 BOPD) 50 BOPD 

### (TPY) NOx 11.35 11.35 SO2 0.07 0.07 VOC 0.64 1.47 0.30 0.053 1.95 4.41 CO 9.70 9.70 PM10 0.83 0.83 *Values used for PTE are listed below - tanks volumes = 2000 volumes x 1.2)

2003 4380 hrs (603 BOPD) (603 BOPD) 40 BOPD 

### (TPY) NOx 7.569 7.57 SO2 0.046 0.05 VOC 0.426 1.01 0.25 0.050 1.95 3.68 CO 6.465 6.47 PM10 0.552 0.55

2002 4380 hrs (735 BOPD) (735 BOPD) 40 BOPD 

### (TPY) NOx 7.569 7.57 SO2 0.046 0.05 VOC 0.426 1.19 0.27 0.050 1.95 3.89 CO 6.465 6.47 PM10 0.552 0.55

2001 4380 hrs (639 BOPD) (639 BOPD) 40 BOPD 

### (TPY) NOx 7.569 7.57 SO2 0.046 0.05 VOC 0.426 1.06 0.26 0.050 1.95 3.74 CO 6.465 6.47 PM10 0.552 0.55

2000 4380 hrs ( 776 BOPD) ( 776 BOPD) 40 BOPD 

### (TPY) NOx 7.569 7.57 SO2 0.046 0.05 VOC 0.426 1.25 0.28 0.050 1.95 3.95 CO 6.465 6.47 PM10 0.552 0.55