Puget Sound Energy, Inc.

Original Volume No. 1

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Effective Date: 11/01/1998, Docket: CP98-250-002, Status: Effective

Original Sheet No. 16 Original Sheet No. 16 : Effective



1.28 Northwest's Natural Gas Transmission System


"Northwest's Natural Gas Transmission System" means the natural

gas transmission system owned and operated by Northwest.


1.29 Operating Rules


"Operating Rules" means the procedures and calculations set forth

in P

arts 1 and 2 of Exhibit F, as such parts may be revised in

accordance with this Agreement, used to develop the Seasonal

Working Gas Quantity and the Firm Withdrawal Deliverability of

each Owner.


1.30 Operations and Maintenance Costs


"Operations and Maintenance Costs" or "O&M Costs" for the Storage

Project means the operations and maintenance costs of the Storage

Project calculated in accordance with the Uniform System and

generally accepted accounting principles for gas utilities.


1.31 Owner


"Owner" means any Person listed in Section 2.2.1 that owns an

Ownership Interest.


1.32 Ownership Interest


"Ownership Interest" means each Owner's respective undivided

interest in the Storage Project, as described in Section 2.2.


1.33 Ownership Percentage


"Ownership Percentage" of an Owner means the percentage set forth

for such Owner in Section 2.2.1 as such percentage may be revised

in accordance with this Agreement.