Dominion Transmission, Inc.

Third Revised Volume No. 1

Effective Date: 09/01/2001, Docket: RP00-344-001, Status: Effective

First Revised Sheet No. 632 First Revised Sheet No. 632 : Effective

Superseding: Original Sheet No. 632

MPS RATE SCHEDULE

Mainline Pooling Service

adequate corresponding point rights under the Subject

Service Agreement(s). In order to recognize physical

constraints of Pipeline's system, each MPS Agreement shall

specify North Point and/or South Point as the Eligible

Points that will permit Customer to nominate MPS service,

subject to adequate corresponding rights under the Subject

Service Agreement(s).

6. AGGREGATION PROCEDURES

6.1 On or before the nomination deadlines otherwise applicable

to Pipeline's service under the Subject Service Agreements,

Customer shall provide nomination data to Pipeline,

consistent with the requirements of Section 11A of the

General Terms and Conditions, for each of Customer's

Eligible Points. Pipeline shall confirm that the nomination

data received from Customer is equivalent to valid

nominations under Subject Service Agreements that will move

gas away from the Eligible Points identified in the

Aggregation Agreement. The quantities determined through

this process shall be the "Scheduled Quantities."

6.2 After confirmation, any changes to Scheduled Quantities

shall be effective only if a corresponding nomination change

has been made under a Subject Service Agreement and this

change is confirmed by Pipeline. Confirmation changes

received pursuant to this Section 6.2 shall have prospective

effect only, and shall be confirmed by Pipeline.

6.3 If any nominated service from Pipeline under a Subject

Service Agreement fails to be scheduled for any reason, e.g.

because physical entities upstream or downstream of Pipeline

do not confirm such nomination, then Pipeline shall inform

Customer, and the parties shall revise confirmation data on

a prospective basis, to reflect the revised Scheduled

Quantities. In order to address any mismatch in quantities

that cannot be resolved before Pipeline's scheduling

deadline, Customer shall provide Pipeline with predetermined

instructions at the time of nominations, indicating which

contracts are to be adjusted if sufficient gas is not

received for services confirmed hereunder, and which Subject

Service Agreement(s) for Storage or Parking service under

Pipeline's FERC Gas Tariff are to be affected if excess

quantities are tendered to Pipeline for services confirmed