Western Gas Interstate Company

Fourth Revised Volume No. 1

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Effective Date: 04/01/1996, Docket: CP96- 81-006, Status: Effective

Original Sheet No. 210 Original Sheet No. 210 : Effective

GENERAL TERMS AND CONDITIONS

(continued)

liquids, water, any other substance that

might become separated from the gas in

Western's facilities, and Shipper shall

furnish, install, maintain and operate such

drips, separators, heaters, and other

mechanical devices as may be necessary to

effect compliance with such requirements

(after having secured the prior approval of

Western as to the design and construction of

such facilities, which approval shall not be

unreasonably withheld);

(c) all gas shall not contain more than five

grains of total sulphur, nor more than one

fourth (1/4) of one grain of hydrogen

sulphide per one hundred (100) cubic feet;

(d) not contain more than two-tenths of one

percent (0.2%) by volume of oxygen, and

Shipper shall make every reasonable effort to

keep the gas free of oxygen;

(e) not contain more than four percent (4%) by

volume of a combined total of carbon dioxide

and nitrogen components; provided, however,

that the total carbon dioxide content shall

not exceed three percent (3%) by volume;

(f) have a temperature of not more than one

hundred twenty degrees (120 degrees)

Fahrenheit, and not less than fifty (50

degrees) Fahrenheit;

(g) have been dehydrated by Shipper for removal

of entrained water present therein in a vapor

state, and in no event contain more than

seven (7) pounds of entrained water per

million cubic feet, at a pressure base of

fourteen and seventy three hundredths (14.73)

pounds per square inch and a temperature of

sixty degrees (60 degrees) Fahrenheit as

determined by dew-point apparatus approved by

the Bureau of Mines or such other apparatus

as may be mutually agreed upon.