Questar Pipeline Company

First Revised Volume No. 1

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Effective Date: 07/25/2005, Docket: RP05-401-000, Status: Effective

Second Revised Sheet No. 88C Second Revised Sheet No. 88C : Effective

Superseding: First Revised Sheet No. 88C

PART 1

GENERAL TERMS AND CONDITIONS

(Continued)

(b) By using the registration of any check meter or meters, if

installed and accurately registering, or, in the absence of (a) and (b);

(c) By estimating the quantity of gas received or delivered based

on receipts or deliveries during preceding periods under similar conditions

when the measurement equipment was registering accurately.

14.14 Preservation of Records. Questar will retain data as may be

required by appropriate authority.

14.15 Measurement Data Corrections. Measurement data corrections will

be processed within six months of the production month with a three-month

rebuttal period. This standard will not apply in the case of deliberate

omission or misrepresentation or mutual mistake of fact. Parties' other

statutory or contractual rights shall not otherwise be diminished by this

standard (NAESB 2.3.14).

14.16 Cutoff. The cutoff for the closing of measurement is five

business days after the business month.

15. FACILITIES

Questar is not required to construct or acquire any additional

facilities to provide requested transportation service. If Questar installs

facilities at the request of a shipper, that shipper shall make full payment

to Questar for