Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 07/16/2008, Docket: RP08-411-000, Status: Effective

First Revised Sheet No. 204 First Revised Sheet No. 204

Superseding: Original Sheet No. 204

GENERAL TERMS AND CONDITIONS

(Continued)

3. QUALITY

3.1 Gas Quality at Receipt Points. All Gas delivered by Shipper to

Transporter shall conform to the applicable specifications in either

Section 3.1(a) or Section 3.1(b). As used in this section, the La Plata

Facilities are defined as those facilities commencing at a measurement

facility downstream of the discharge side of Northwest's La Plata B

compressor station southward to the Blanco Hub, including the La Plata A

compressor station and certain plant interconnects, all located in

southern Colorado and northern New Mexico.

(a)All Gas delivered by Shipper to Transporter at Receipt Points

not connected to the La Plata Facilities shall conform to the

following specifications:

(1) Hydrocarbon Liquids and Liquefiables: The hydrocarbon

dew point of the gas delivered shall not exceed fifteen

degrees Fahrenheit at any pressure between 100 psia and 1,000

psia as calculated from the gas composition and shall be free

from hydrocarbons in the liquid state. At all times, any and

all liquid or liquefiable hydrocarbons, or any other

constituent or by-product, recovered from the gas by

Transporter, after delivery of gas to Transporter shall be and

remain the exclusive property of Transporter, except as

specified in Section 20 of the General Terms and Conditions.

(2) Hydrogen Sulfide and Total Sulfur: The gas shall contain

not more than one quarter grain of hydrogen sulfide per one

hundred cubic feet and not more than five grains total sulfur

per one hundred cubic feet.

(3) Carbon Dioxide and Total Nonhydrocarbons: The gas shall

contain not more than two percent by volume of carbon dioxide

and shall contain not more than three percent by volume of

combined nonhydrocarbon gases including, but not limited to,

carbon dioxide, nitrogen and oxygen, except as otherwise

provided in Section 3.5.