Transcolorado Gas Transmission Company LLC

Second Revised Volume No. 1

Effective Date: 12/28/2007, Docket: RP08-167-000, Status: Effective

Original Sheet No. 263 Original Sheet No. 263 : Effective

GENERAL TERMS AND CONDITIONS

10. MEASUREMENT (Continued)

The measurement equipment of Shipper shall be for check purposes

only and, except as expressly provided in these General Terms and Conditions,

shall not be used in the measurement of gas.

10.7 Orifice Meters. All orifice meters shall be installed and gas

volumes computed in accordance with the standards prescribed in ANSI/API 2530

(Orifice Metering of Natural Gas), which incorporates Gas Measurement

Committee Report #3 of the American Gas Association, September 1992, revised

and reprinted, and any subsequent amendments TransColorado may adopt.

10.8 Non-Interference. In order to avoid interference with the

operation of the primary measurement facilities, custody transfer meter run

taps will not be shared or used for other than custody transfer by the

operating company.

10.9 Square Root Error. Pulsation filters or other remedial equipment

may be required by TransColorado or the Operator upon the occurrence of

unacceptable square root error ("SRE") or gauge line error. Unacceptable SRE

is defined to be equal to or greater than 0.5% SRE.

In the event of a disagreement between TransColorado and the

Operator on the source and degree of error, Southwest Research Institute, or a

mutually agreeable replacement, will be requested to determine the source and

degree of error. The party deemed responsible for the pulsation source will

incur all costs for the consultation, along with the installation and remedial

devices or filtering equipment as necessary.

10.10 Electronic Flow Computers. TransColorado may install electronic

flow computers to permit the direct computation of gas flows without the use

of charts.

10.11 New Measurement Techniques. If, at any time, a new method or

technique is developed with respect to gas measurement or the