Dominion Transmission, Inc.

Third Revised Volume No. 1

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Effective Date: 09/23/2000, Docket: RP00-555-000, Status: Effective

Original Sheet No. 503 Original Sheet No. 503 : Effective

ISS RATE SCHEDULE

Interruptible Storage Service

4. MONTHLY BILL

4.1 For natural gas storage service under this Rate Schedule,

Customer shall pay Pipeline each month the following:

A. ISS Capacity Charge. A charge per Dt per month (or

per that portion of a month that was available for

service to Customer, in the event of an interruption

of service in accordance Section 2.4, above) applied

to the highest Storage Gas Balance held by Pipeline

for Customer during the Billing Month.

B. An Injection Charge. A charge per Dt for all gas

injected during the billing month.

C. A Withdrawal Charge. A charge per Dt for all gas

withdrawn during the billing month.

D. An Excess Injection Charge. A charge per Dt for all

gas injected for Customer under Section 8 of this Rate

Schedule, during the billing month.

E. An Authorized Overrun Charge. A charge per Dt for all

gas withdrawn for Customer under Section 8 of this

Rate Schedule, during the billing month.

F. Any Applicable Penalties. For excess daily injection

overruns, injections in excess of the MSQ and excess

withdrawals, as required by Section 9, below.

G. Any other applicable rates, charges, and penalties as

set forth in the General Terms and Conditions of

Pipeline's Tariff.

4.2 Fuel Retention. Pipeline will retain the percentage of gas

received for injection as set forth on Sheet No. 35 as the

Storage Service Fuel Retention Percentage.