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

First Revised Sheet No. 343 First Revised Sheet No. 343

Superseding: Original Sheet No. 343

FORM OF RATE SCHEDULE LS-2F SERVICE AGREEMENT

(Continued)

[Base Contract Version]

EXHIBIT A

[Dated and Effective _______________]

(or)

[Dated _______________, Effective _______________]

to the

Rate Schedule LS-2F Service Agreement

(Contract No. ________)

between Northwest Pipeline GP

and _____________________________

SERVICE DETAILS

1. Storage Demand: _______ Dth per day

2. Storage Capacity: _______ Dth

3. Recourse or Discounted Recourse Storage Rates:

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

a. Demand Charge (per Dth of Storage Demand):

Maximum Currently Effective Tariff Rate]

(or)

[$_____]

b. Capacity Demand Charge (per Dth of Storage Capacity):

[Maximum Currently Effective Tariff Rate]

(or)

[$_____]

c. Liquefaction Charge (per Dth): Maximum Currently Effective Tariff

Rate

d. Vaporization Charge (per Dth): Maximum Currently Effective Tariff

Rate

e. Rate Discount Conditions Consistent with Section 3.3 of Rate

Schedule LS-2F: [Not Applicable] (or) [(Description)]