Northwest Pipeline Corporation

First Revised Volume No. 1-A

Effective Date: 04/01/1993, Docket: RP93- 95-000, Status: Effective

Original Sheet No. 321 Original Sheet No. 321 : Effective

RATE SCHEDULE TF-1

Firm Transportation

(Continued)

13. ACCOUNT NO. 858 CHARGES (Continued

(i) Demand Allocation Factor: A Demand Allocation Factor is

derived for each Shipper by dividing (1) the total PGT

capacity that has been assigned to such Shipper by (2)

the total assignable PGT capacity of 153,265 MMBtu.

These figures are contained on Exhibit B of the Joint

Offer of Settlement as filed with the Commission on July

21, 1992 in Docket No. CP92-79, et al.

(ii) The total Account No. 858 Demand Charges payable by

Transporter to PGT during the month. Such monthly figure

is currently $79,972.

Transporter will adjust the Demand and Commodity Charges

described above for the affected Rate Schedule TF-1 customers if (1) PGT

adjusts its billings to Transporter as the result of transportation

volume adjustments, or (2) PGT adjusts its currently effective Demand or

Commodity rates as the result of Commission or Court action. Such

adjustments shall be made to ensure that the total of Transporter's

billings to affected Rate Schedule TF-1 and Rate Schedule ODL-1

customers are equal to Transporter's payments to PGT.