Mississippi River Transmission Corp.

Original Volume No. 1-A

Effective Date: 02/01/1990, Docket: GT90- 12-000, Status: Effective

First Revised Sheet No. 42 First Revised Sheet No. 42 : Effective

Superseding: Original Sheet No. 42

TRANSPORTATION

GENERAL TERMS AND CONDITIONS

(Continued)

4. MEASUREMENT PROCEDURES (Continued)

4.4 Electronic Transducers and Flow Computers. When electronic

transducers, flow computers, gas chromatographs and/or other electronic

equipment are used, the gas delivered shall have its volume, mass

and/or energy content computed in accordance with the standards of the

American Gas Association as promulgated by AGA Measurement Committee

Report Nos. 3, 5, 6 and 7. The parties specifically agree to accept

the use of these electronic devices in lieu of mechanical devices with

charts.

4.5 Determination of Heating Value and Specific Gravity - The

heating value of the gas shall be expressed in Btu per dry cubic foot

of gas at 14.73 Psia and 60 degrees Fahrenheit, the method used and the

frequency of measurement for both the heating value and the specific

gravity shall be at Transporter's sole option provided they are in

general use within the natural gas transmission industry.

4.6 New Measurement Techniques. If at any time during the term

hereof a new method or technique is developed with respect to gas

measurement, or the determination of the factors used in such gas

measurement, such new method or technique may be substituted for the

method set forth in this Section 4 when, in Transporter's sole

discretion, employing such new method or technique is advisable.

Transporter shall notify Shipper in writing of any such election prior

to actually implementing such substitution.

4.7 Gas Stream Pulsations. Gas shall be delivered free of

pulsations detrimental to accurate measurement.

4.8 Testing and Repair of Equipment. The measurement and

appurtenant facilities at the Transporter Receipt and Delivery Point(s)

shall be kept accurate and in repair by the party operating said

facilities. In order to ensure the accuracy of the measuring

equipment, the party operating said equipment will perform such tests

as it may deem necessary on a monthly basis or as often as the parties

may agree is necessary in actual practice, and will repair and adjust