Discovery Gas Transmission LLC

Original Volume No. 1

Effective Date: 10/22/2006, Docket: RP06-608-000, Status: Effective

Sixth Revised Sheet No. 106 Sixth Revised Sheet No. 106 : Effective

Superseding: Fifth Revised Sheet No. 106

1.21 GROSS HEATING VALUE - The number of Btus produced by the complete

combustion in air, at a constant pressure, of the amount of Gas that

would occupy a volume of one (1) cubic foot at a temperature of sixty

degrees Fahrenheit (60F), if saturated with water vapor and under

pressure equivalent to that of thirty (30) inches of mercury at thirty-

two degrees Fahrenheit (32F), and under standard gravitational force

with air of the same temperature and pressure as the Gas when the

products of combustion are cooled to the initial temperature of the Gas

and air and when the water formed by combustion is condensed to the

liquid state. The gross heating value of the Gas thus obtained will be

expressed on the measurement basis set forth in this FERC Gas Tariff

(14.73 PSIA) and will be adjusted from a saturated basis to the actual

water content of the Gas actually delivered, provided, however, that if

the Gas as delivered contains seven (7) pounds of water or less per

million (1,000,000) cubic feet, such Gas will be deemed to be dry.

1.22 INTEREST RATE - The interest rate determined by the Commission in

accordance with Section 154.501(d)(1) of the Commission's regulations.

1.23 INTERRUPTIBLE SERVICE - A service that is subject to interruption when

and to the extent Transporter determines that capacity is not available

in its existing System, and as provided in the IT Rate Schedule, the IT

Service Agreement, or the General Terms and Conditions of Transporter's

FERC Gas Tariff.

1.24 INTRADAY NOMINATION - An intraday nomination is a nomination submitted

after the nomination deadline whose effective time is no earlier than

the beginning of the Gas Day and runs through the end of that Gas Day.

An Intraday Nomination will span one Day only.

1.25 MAINLINE FACILITIES - Facilities of Transporter existing prior to the

date that service through the Expansion Facilities commenced, including

without limitation Transporter's 30-inch offshore mainline to the Larose

Processing Plant, 4 associated gathering laterals, the 20-inch pipeline

to Texas Eastern Transmission, LP and the 30-inch pipeline to Bridgeline

Gas Distribution LLC.

1.26 MAXIMUM DAILY QUANTITY (MDQ) - The maximum daily quantity of Gas

Transporter will receive or deliver at each Receipt or Delivery Point in

accordance with the terms of an Effective Service Agreement.

1.27 MAXIMUM DAILY RESERVATION QUANTITY-EXPANSION (MDRQ-Expansion) - The

maximum quantity of Gas Transporter is obligated to receive through the

Expansion Facilities for the account of Shipper, as stated in an

Effective FT-1 Firm Service Agreement between Shipper and Transporter.