Questar Pipeline Company

First Revised Volume No. 1

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Effective Date: 01/01/2008, Docket: RP07-457-000, Status: Effective

Seventh Revised Sheet No. 42 Seventh Revised Sheet No. 42 : Effective

Superseding: Sixth Revised Sheet No. 42





1.11 CHDP Zone means a discrete segment of pipeline on Questar's

interstate transmission system with a unique CHDP Operating Limit. The CHDP

zones are set forth on Sheet No. 205 to this Tariff. The receipt points

within each zone will be posted on Questar's Internet web site.


1.12 Contract Transportation Path (CTP) means the contiguous set of

receipt point groups that comprise a Shipper's contracted T-1 receipt and

delivery points. Receipt point group (RPG) means a group of receipt points

within specifically identified geographical areas on Questar's transportation



1.13 Cubic foot means the quantity of gas that would occupy one cubic

foot at a temperature of 60 degrees Fahrenheit and at a pressure of 14.73



1.14 Curtailment means reduction or temporary suspension of firm



1.15 Cut and boost means to decrease or increase received or delivered



1.16 Daily quantity or DQ means the quantity of gas stated in the

transportation service agreement under Rate Schedule T-2.


1.17 Day or gas day means the standard time for the gas day shall be 9

a.m. to 9 a.m. Central Clock Time (CCT). Business day is defined as Monday

through Friday, excluding Federal Banking Holidays for transactions in the

U.S., and similar holidays for transactions occurring in Canada and Mexico.


1.18 Decatherm or Dth means a unit of heating value equivalent to

1,000,000 Btu's.


1.19 Delivery point means a point where Questar delivers gas to or for

the account of shipper.


1.20 Delivery Point Group (DPG) means a group of delivery points

located within specifically identified discrete operational areas on Questar's

transmission system.


1.21 Equivalent volumes means the sum of the volumes of gas measured in

Mcf received by Questar from shipper at receipt points during any given period

of time, (a) reduced by (i) shipper's pro rata share of unaccounted-for gas

resulting from Questar's operations during the same period of time and (ii)

fuel gas, (b) adjusted for any variations in Btu content on a dry basis.