Questar Pipeline Company

First Revised Volume No. 1

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

Second Revised Sheet No. 83 Second Revised Sheet No. 83 : Effective

Superseding: First Revised Sheet No. 83





dirt, impurities or other solid or liquid matter that might interfere with its

merchantability or cause injury to or interference with proper operation of

the pipelines, regulators, meters, or other equipment of Questar. The gas

shall also be free of all matter that is deemed hazardous or toxic and is

subject to regulation by the Environmental Protection Agency or any State

agency having similar jurisdiction or authority.


(f) Oxygen. The gas shall not have an oxygen content in excess

of 10 parts per million by volume, and the parties shall make every reasonable

effort to keep the gas free of oxygen.


(g) Temperature. The gas shall be delivered at a temperature not

in excess of 120 degrees Fahrenheit or less than 35 degrees Fahrenheit at any

receipt or delivery point.


(h) Total Sulfur. The gas shall not contain more than 5 grains

of total sulfur per Mcf, of which not more than 2 grains shall be mercaptan



(i) Water Vapor. The gas shall not contain in excess of 5 pounds

of water per million cubic feet.


13.2 Cricondentherm Hydrocarbon Dew Point (CHDP).


(a) CHDP Limit - Questar will accept all deliveries of natural

gas within CHDP Zones 1 through 9 at a CHDP equal to or less than 35°

Fahrenheit and equal to or less than 15° Fahrenheit within CHDP Zone 10,

provided that such gas satisfies all other applicable provisions of Questar's

FERC Gas Tariff.


(b) CHDP Operating Limit - Questar may, from time to time, as

operationally feasible, establish and post on its internet web site a CHDP

Operating Limit that is higher than the CHDP Limit for natural gas received

into its system on specified CHDP Zones. Questar's ability to establish and

post higher CHDP Operating Limits for particular zones will depend on

pipeline operating characteristics such as pressures and temperatures,

blending capability of prevailing and expected gas supplies and proximity to

downstream city gates and interconnecting pipelines as well as the existence

of processing and liquids handling facilities within a CHDP Zone.


(c) Questar shall not be obligated to accept gas into its

system that exceeds the applicable CHDP limit. The existence of a CHDP limit

shall not be deemed to negate, reduce or limit Questar's authority to issue

operational flow orders. To the extent operationally practicable, Questar

may waive a CHDP limit for gas received from certain points on its system

provided such waiver is made on a non-discriminatory basis.