Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

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Effective Date: 04/24/2006, Docket: RP06-278-001, Status: Effective

Third Revised Sheet No. 161 Third Revised Sheet No. 161 : Effective

Superseding: Second Revised Sheet No. 161

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

21. BALANCING (Continued)

21.1 (Continued)

(b) Actual delivered quantity exceeds receipt quantity

A net negative imbalance shall exist if the difference

between the quantity received and the quantity delivered,

taking into account the reduction in quantity for

compressor fuel use, yields a negative result. Commencing

upon notification by GTN of the existence of the negative

imbalance, and to the extent that the GTN system is not

constrained or its integrity is not threatened, Shipper

shall have three (3) days to correct the imbalance.

Remedies: Shippers may schedule with GTN using the

nomination process to eliminate or reduce negative

imbalances. In addition, in accordance with this Paragraph

21, Shippers may net or trade imbalances to eliminate or

reduce positive imbalances.

Penalty: If at the end of the aforementioned three (3)

day period the difference between the actual delivered

quantity and the receipt quantity is in excess of 10% of

the delivered quantity or 1000 Dth, whichever is greater,

the Shipper shall be assessed a charge of $5/Dth applied to

the excess quantities. If the imbalance is not corrected

within 45 days of GTN's notice of an imbalance, the Shipper

shall be assessed an additional charge of $5/Dth, applied

to the net imbalance remaining at the end of the 45 day

balancing period.

(Continued)