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. 519 Original Sheet No. 519

[For ISS Rate Schedule]

Revision No. ______

Control No. ______

Appendix A to Service Agreement No. ____________

Under Rate Schedule ISS

between Columbia Gas Transmission, LLC (Transporter)

and _______________________________________ (Shipper)

Interruptible Storage Quantity ____________ Dth

Bid Commodity Rate _________________________ ¢ per Dth

Service Commencement Month ___________, 20___

through

Service Termination Month ____________, 20___

CANCELLATION OF PREVIOUS APPENDIX A

Service changes pursuant to this Appendix A shall commence as of ____________, 20___. This Appendix A shall

cancel and supersede the previous Appendix A to the Service Agreement dated ________________, 20___. With the

exception of this Appendix A, all other terms and conditions of said Service Agreement shall remain in full

force and effect.

(SHIPPER) COLUMBIA GAS TRANSMISSION, LLC

By_________________________________ By_____________________________________

Its________________________________ Its____________________________________

Date_______________________________ Date___________________________________