Pacific Gas Transmission Company

First Revised Volume No. 1-A

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Effective Date: 02/02/1998, Docket: GT98- 17-000, Status: Effective

Second Revised Sheet No. 56 Second Revised Sheet No. 56 : Effective

Superseding: First Revised Sheet No. 56





3.1 Quality Standards: The gas which Shipper delivers hereunder

to PG&E GT-NW for transport (and the gas which PG&E GT-NW

transports hereunder for Shipper) shall be merchantable gas

at all times complying with the following quality requirements:


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

of not less than nine hundred ninety-five (995) Btus per

standard cubic foot on a dry basis, but with the consent

of Shipper, PG&E GT-NW may deliver gas at a lower gross

heating value.


(b) Freedom from Objectionable Matter: The gas:


(1) Shall be commercially free from sand, dust, gums,

crude oil, impurities and other objectionable

substances which may be injurious to pipelines or

which may interfere with its transmission through

pipelines or its commercial utilization.


(2) Shall not have a hydrocarbon dew-point in excess of

fifteen degrees (15m) Fahrenheit at pressures up to

eight hundred (800) psig.


(3) Shall not contain more than one-quarter (1/4) grain

of hydrogen sulfide per one hundred (100) standard

cubic feet.


(4) Shall not contain more than ten(10) grains of total

sulphur per one hundred (100) standard cubic feet.


(5) Shall not contain more than two percent (2%) by

volume of carbon dioxide.


(6) Shall not contain more than four (4) pounds of

water vapor per one million (1,000,000) standard

cubic feet.


(7) Shall not exceed one hundred ten degrees (110m)

Fahrenheit in temperature at the point of



(8) Shall be as free of oxygen as it can be kept

through the exercise of all reasonable precautions,

and shall not in any event contain more than

four-tenths of one percent (0.4%) by volume of

oxygen. (Continued)