Northwest Pipeline Corporation - Permitting Information

1. Facility Information

Northwest Pipeline Corporation

2. Location

3 km east of Sumas, Washington. Whatcom County. UTM Coordinates: 557127 meters east, 5427616 meters north.

3. Distance from US/Canada Border

1 mile

4. Facility Type and Size

Existing 41,200 horsepower natural gas pipeline compressor station utilizing two combustion turbines and six reciprocating engines. Applicant proposes to install one additional turbine to increase capacity by 12,841 horsepower @ 59øF. Applicant also proposes to replace the engines of the two existing turbines with new, lower emitting engines.

5. Sources of Emissions

Natural gas fired turbines and reciprocating engines

6. Type of Fuel

Natural gas

7. Type and Quantity of Emissions & 8. Emission Control Technology

For installation of one new gas fired combustion turbine and replacement of engines at two existing turbines, maximum permitted potential to emit and net emissions increase of the three units considering controls:

Pollutant	Quantity of Emissions (tons / yr)	Past Actual Emissions 1/99 to 12/00 for two removed turbine engines (tons / yr)	Net Emissions Increase (tons / yr)	Emission Control Technology
PM10	8.68			Pipeline natural gas & good combustion practices
SO2	4.47			Pipeline natural gas & good combustion practices
NOx	130.86	94.6	36.26	Pipeline natural gas, good combustion practices & SoLoNOx™
VOC	9.12			Pipeline natural gas & good combustion practices
CO	159.33	8.5	131	Pipeline natural gas & good combustion practices
HAP	1.6			Pipeline natural gas & good combustion practices

9. Date Permit Application Received

December 3, 2001. Additional information received May 23, 2002. Draft permit proposed to public soon. 

10. Stack Height and Diameter

Stack 1 (new turbine):
Height: 39.41 feet
Square Width: 7.5 feet

Stack 2 (replacement engine):
Height: 39.41 feet
Square Width: 7.5 feet

Stack 3 (replacement engine):
Height: 39.41 feet
Square Width: 7.5 feet

11. Permit Agency Contact