Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

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

irst Revised Sheet No. 204B irst Revised Sheet No. 204B

Superseding: Original Sheet No. 204-B

GENERAL TERMS AND CONDITIONS

(Continued)

3. QUALITY (Continued)

(11) Bacteria: The gas, including any associated liquids,

shall not contain any microbiological organism, active bacteria

or bacterial agent capable of causing or contributing to: (i)

injury to Transporter's pipelines, meters, regulators, or other

facilities and appliances through which such gas flows or (ii)

interference with the proper operation of the Transporter's

facilities. Microbiological organisms, include, but are not

limited to, sulfate reducing bacteria (SRB) and acid producing

bacteria (ACB). When bacteria or microbiological organisms are

considered a possibility, Shipper(s) desiring to Nominate such

gas, upon Transporter's request, shall cause such gas to be

tested for bacteria or bacterial agents utilizing the American

Petroleum Institute test method API-RP38 or other acceptable

test method as determined by both parties.

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

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 of gas. The gas shall contain not more than

0.3 grains of mercaptan sulfur per one hundred cubic feet of

gas. The gas shall contain not more than 0.75 grains of total

sulfur per one hundred cubic feet of gas.