Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

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Effective Date: 12/01/2009, Docket: RP10-85-000, Status: Effective

Second Revised Sheet No. 302C Second Revised Sheet No. 302C

Superseding: First Revised Sheet No. 302C

FORM OF RATE SCHEDULE TF-1 SERVICE AGREEMENT

(Continued)

. .

[Base Contract Version]

EXHIBIT A (Continued)

b. Incremental Expansion Customer: [No]

(or)

[Yes, Columbia Gorge Expansion]

(or)

[Yes, 15-Year Evergreen Expansion]

(or)

[Yes, 25-Year Evergreen Expansion]

5. Recourse or Discounted Recourse Transportation Rates:

(Show "Not Applicable" if Exhibit D is attached.)

(If Customer Category is Small Customer, show Reservation Charge as

"Not Applicable.")

a. Reservation Charge (per Dth of CD):

[Maximum Base Tariff Rate, plus applicable surcharges]

(or discounted rate(s) using one or more of the following

options, as many times as needed)

[[$_____] (or) [____% of Maximum Base Tariff Rate][.] (or) [from

[date] through [date]].

b. Volumetric Charge (per Dth): [Maximum Base Tariff Rate, plus

applicable surcharges]

(or)

[$_____, plus applicable surcharges]

c. Additional Facility Reservation Surcharge Pursuant to Section 3.4 of

Rate Schedule TF-1 (per Dth of CD): [None]

(or)

[Maximum]

(or)

[$_____]

d. Rate Discount Conditions Consistent with Section 3.5 of Rate

Schedule TF-1: [Not Applicable] (or) [(Description)]