Columbia Gas Transmission LLC

Third Revised Volume No. 1

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Effective Date: 03/03/2009, Docket: RP09-340-000, Status: Effective

Original Sheet No. 130 Original Sheet No. 130

ISS RATE SCHEDULE

INTERRUPTIBLE STORAGE SERVICE

1. AVAILABILITY

Service under this Rate Schedule is available from Columbia Gas Transmission, LLC (Transporter) to any

Shipper, provided that (i) Transporter has sufficient facilities and storage capacity available to inject,

store, and withdraw gas for Shipper, (ii) Transporter has awarded capacity to Shipper under the provisions of

this Rate Schedule, through construction of facilities, or pursuant to Transporter's Order No. 636

restructuring proceeding in FERC Docket No. RS92-5-000, (iii) Shipper has executed an ISS Service Agreement

with Transporter, and (iv) Shipper complies with all other applicable provisions of this Tariff.

2. APPLICABILITY AND CHARACTER OF SERVICE

(a) Service provided under this Rate Schedule shall be performed under Subpart B or G of Part 284

of the Commission's Regulations. Subject to the limitations set forth below, Transporter shall inject and

store quantities and withdraw thermally equivalent quantities, less Storage Gas Loss, for Shipper. Such

service shall be provided on an interruptible basis and shall apply to all gas designated for storage under

this Rate Schedule and delivered to Transporter to or for Shipper, up to the Interruptible Storage Quantity

(ISQ) set forth in Shipper's ISS Service Agreement.

(b) Service under this Rate Schedule, including all injections into and withdrawals from storage

(i) shall have the priority specified in Section 7 (Capacity Allocation) of the General Terms and Conditions,

(ii) shall be subject to interruption to the extent provided in this Rate Schedule or in Section 16

(Interruptions of Service) of the General Terms and Conditions, and (iii) shall be subject to operational flow

orders issued by Transporter to protect the integrity, including the performance capability, of its storage

facilities or otherwise to the extent provided in this Rate Schedule or in Section 17 (Operational Flow

Orders) of the General Terms and Conditions.

(c) Subject to the limitations and requirements set forth in this Rate Schedule and in Shipper's

ISS Service Agreement, Shipper shall be permitted to request Transporter to inject, on an interruptible basis,

quantities received by Transporter from or on behalf of Shipper and designated for delivery to "ISS Storage".

All such nominations of injection quantities and all resulting actual injections under this Rate Schedule

shall be completed within the first Month of Shipper's ISS Service Agreement governing those quantities (the

Injection Month).