Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 02/20/2009, Docket: RP09-227-000, Status: Effective

Second Revised Sheet No. 5C Second Revised Sheet No. 5C

Superseding: First Revised Sheet No. 5C

STATEMENT OF RATES (Continued)

Effective Rates Applicable to

Rate Schedules TF-1, TF-2, TI-1, TFL-1 and TIL-1 (Continued)

(Dollars per Dth)

Footnotes (Continued)

(4) All reservation rates are daily rates computed on the basis of 365 days

per year, except that such rates for leap years are computed on the

basis of 366 days.

For Rate Schedule TF-1, the 15-Year and 25-Year Evergreen Expansion

reservation and volumetric rates apply to Shippers receiving service

under Rate Schedule TF-1 Evergreen Expansion service agreements. The

System-Wide reservation and volumetric rates apply to Shippers receiving

service under all other Rate Schedule TF-1 service agreements.

For Rate Schedule TF-1, the 15-Year and 25-Year Evergreen Expansion

maximum base tariff reservation rates are comprised of $0.37610 and

$0.35954 for transmission costs and $0.00491 and $0.00491 for storage

costs, respectively. The System-Wide maximum base tariff reservation

rates for Rate Schedule TF-1 and the maximum base tariff reservation

rates for Rate Schedule TF-2 are comprised of $0.37493 for transmission

costs and $0.00491 for storage costs.

For Rate Schedule TF-1 (Large Customer), the maximum base tariff

volumetric rates applicable to Shippers receiving service under Rate

Schedule TF-1 Evergreen Expansion service agreements are comprised of

$0.00344 for transmission costs and $0.00025 for storage costs. The

maximum base tariff volumetric rates for all other services under Rate

Schedule TF-1 (Large Customer) and for services under Rate Schedule TF-2

are comprised of $0.02975 for transmission costs and $0.00025 for

storage costs.