Southern Star Central Gas Pipeline, Inc.

Original Volume No. 1

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Effective Date: 05/01/2003, Docket: RP03-352-000, Status: Effective

Original Sheet No. 207 Original Sheet No. 207 : Effective

GENERAL TERMS AND CONDITIONS

3. QUALITY (Cont'd)

(c) Oxygen: The gas shall not contain in excess of two-tenths

of one percent (0.2%) by volume of oxygen, and every

reasonable effort shall be made to keep the gas completely

free of oxygen.

(d) Carbon Dioxide: The gas shall contain not more than one

percent (1%) by volume of carbon dioxide.

(e) Hydrogen: Gas from crude oil refineries shall contain no

more than trace amounts of free hydrogen.

(f) Dust, Gums, etc.: The gas shall be commercially free of

dust, gums, dirt, paraffin, impurities and other solid

matter.

(g) Heating Value: The gas shall have a gross heating value of

not less than nine hundred fifty (950) Btu's per cubic foot,

assuming no water vapor. The term "gross heating value"

when applied to a cubic foot of gas shall mean the number of

Btu's produced by the complete combustion of the amount of

the gas which would occupy a volume of one (1) cubic foot at

14.73 psia and a temperature of sixty degrees Fahrenheit (60

deg. F.).

(h) Temperature: The temperature of the gas at the receipt

point shall not exceed one hundred twenty degrees Fahrenheit

(120 deg F.).

(i) Water Vapor: Gas received in Kansas, Oklahoma, Missouri, or

Texas shall not contain more than seven (7) pounds of water

in vapor phase per million cubic feet and gas received in

Colorado or Wyoming shall not contain more than five (5)

pounds of water in vapor phase per million cubic feet,

except for gas tendered to Southern Star at a receipt point

where Southern Star owns and operates the equipment

necessary to reduce the water vapor content of the gas to

meet this requirement.

(j) Notwithstanding the provisions of paragraphs (a) through (i)

above, gas quality varies throughout segments of Southern

Star's pipeline system based on the function of each

segment. The quality of the gas delivered by Shipper to

Southern Star must, in Southern Star's reasonable

discretion, be compatible with the gas typically existing in

the segment of Southern Star's pipeline into which Shipper

makes delivery.