Transcolorado Gas Transmission Company LLC

Second Revised Volume No. 1

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

Original Sheet No. 293 Original Sheet No. 293 : Effective

GENERAL TERMS AND CONDITIONS

20. SYSTEM OPERATION - (Continued)

(ii) Curtail or require adjustments or supply shifts in IT

service; and/or

(iii) Take such other actions as are within TransColorado's

control and discretion to alleviate or forestall the situation.

20.5 Critical Time Notice.

A. A Critical Time may be declared (1) when the total physical

receipts to all or a portion of the system are approaching or expected to

approach a level that is in excess of the total physical deliveries; (2) when

the total physical deliveries from all or a portion of the system are

approaching or expected to approach, a level that is in excess of the total

physical receipts; (3) when system pressure on one or more pipeline segments

is falling and approaching a level or is expected to fall and approach a level

that is at or below the minimum that TransColorado considers necessary for

system integrity or to fulfill its firm contractual obligations; (4) when

system pressure on one or more pipeline segments is rising and approaching a

level or is expected to rise and approach a level that is at or above the

maximum pressure at which TransColorado's facilities may be safely operated;

or (5) at other times when TransColorado is unable or anticipates it may not

be able to fulfill its firm contractual obligations or otherwise when

necessary to maintain the overall operational integrity of all or a portion of

TransColorado's system. A Critical Time may not be declared on all or a

portion of the system for the purpose of maintaining interruptible services on

that portion of the system, but interruptible gas may flow at times or on

portions of the system when such flow would not violate any operational

control restrictions or provisions of this Tariff. TransColorado shall notify

Shippers on TransColorado's Interactive Website as to the reason(s) why a

Critical Time was declared.

B. TransColorado shall advise Shippers on its system if it is

declaring a Critical Time, as described in Section 20.5A above, and shall

specify the nature of the situation creating the Critical Time.

C. TransColorado may issue OFOs as described in this Section

20.5 during a Critical Time.

D. All quantities tendered on a net contract basis to

TransColorado and/or taken by Shipper on a daily basis in violation of

TransColorado's OFOs issued during a Critical Time shall constitute

unauthorized receipts or deliveries for which a charge of $25 per Dth plus the

San Juan Basin spot price of gas, as determined in Section 12.3 of these

General Terms and Conditions, for the days the OFO is in place shall be

assessed and the resulting imbalance will be reduced to zero.