Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 02/21/2010, Docket: RP10-329-000, Status: Effective

First Revised Sheet No. 205A First Revised Sheet No. 205A

Superseding: Original Sheet No. 205A

GENERAL TERMS AND CONDITIONS

(Continued)

3. QUALITY (Continued)

3.5 Accepting Gas Which Fails to Meet Specifications. Transporter

will accept gas that does not meet quality specifications on a

non-discriminatory basis to all similarly situated Shippers, provided:

1) such acceptance does not jeopardize Transporter's ability to meet its

obligations to deliver gas to downstream interconnecting pipelines or

markets; and, 2) such acceptance occurs on a short-term basis as a

result of an unplanned upstream event such as a plant start-up, plant

upset or line freeze-off. When Transporter, in its reasonable judgment,

can accept some, but not all, gas that does not meet the quality

specifications set forth in Section 3.1 and 3.2, Transporter will

implement the following steps in the following order:

(a) Transporter will identify the receipt point(s) from which

gas is flowing that: 1)does not meet the gas quality

specifications delineated above; and 2) is contributing to the gas

quality problem identified by Transporter.

(b) Transporter will then rank these receipt points according to

the degree by which such flowing gas fails to meet Transporter's

specifications (for example, a receipt point which is flowing gas

with 4% by volume of carbon dioxide will be ranked higher than a

receipt point flowing 3% by volume of carbon dioxide).

order of the ranking starting with the receipt point with the

highest percentage of applicable contaminant until the problem is

resolved. Transporter will make reasonable efforts to notify

receipt point operators by telephone and via Transporter's

Designated Site at the earliest time possible as to the action

required and the time within which compliance is required,

depending on the operational situation existing at the time.

The required action may include any alternative that will

alleviate the gas quality problem.