Mississippi River Transmission Corp.

Original Volume No. 1-A

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Effective Date: 02/01/1990, Docket: GT90- 12-000, Status: Effective

First Revised Sheet No. 45 First Revised Sheet No. 45 : Effective

Superseding: Original Sheet No. 45

TRANSPORTATION

GENERAL TERMS AND CONDITIONS

(Continued)

5. QUALITY (Continued)

(c) Carbon Dioxide. The gas shall not at any time have a

carbon dioxide content in excess of two percent (2%) by volume.

(d) Nitrogen. The gas shall not at any time have a

nitrogen content in excess of two percent (2%) by volume.

(e) Hydrogen. The gas shall contain no carbon monoxide,

halogens, or unsaturated hydrocarbons, and no more than four

hundred parts per million (400 ppm) of hydrogen.

(f) Liquids. The gas shall be free of water and

hydrocarbons in liquid form at the temperature and pressure at

which the gas is delivered and further provided the gas shall not

contain any hydrocarbons which might condense to free liquids in

the pipeline under normal pipeline conditions.

(g) Water Vapor Content. The gas shall in no event

contain water vapor in excess of seven (7) pounds per one million

(1,000,000) cubic feet.

(h) Hydrogen Sulphide and Mercaptans. The gas shall not

contain more than one (1) grain of hydrogen sulphide and

mercaptans per one hundred (100) cubic feet.

(i) Total Sulphur. The gas shall not contain more than

twenty (20) grains of total sulphur per one hundred (100) cubic

feet.

(j) Heating Value. The gas shall have a gross heating

value of not less than nine hundred fifty (950) and not greater

than eleven hundred (1,100) Btu per cubic foot of gas as defined

in Section 4.5.