National Fuel Gas Supply Corporation

Third Revised Volume No. 1

Effective Date: 04/01/1997, Docket: RP97-201-000, Status: Effective

First Revised Sheet No. 134 First Revised Sheet No. 134 : Superseded

Superseding: Original Sheet No. 134

GENERAL TERMS AND CONDITIONS

2. QUALITY (Cont'd.)

(b) Delivery for the Account of Shipper. The provisions set forth

in this Subsection 2.3(b) shall apply to all gas delivered to

Transporter by Operator for the account of Shipper, except for

gas delivered to Transporter by another interstate pipeline,

in which case the quality standards set forth in the intercon-

nection or other agreement between Transporter and such

pipeline shall apply, or in the absence thereof, the FERC Gas

Tariff of such pipeline.

1. All gas shall be commercially free from dust, hydrocarbon

liquids, water, objectionable odors, or other gaseous,

solid or liquid matters which might become separated from

the gas in Transporter's facilities, or which might

interfere with the merchantability of the gas or cause

injury, or interfere with the proper operation of the

pipelines, regulators, meters, or other equipment though

which it flows; and Operator shall furnish, install,

operate, maintain and keep in efficient operating

condition, such drips, separators, dehydrators, alcohol

bottles, gas cleaners and other devices or equipment as

may be or become necessary to effect compliance with this

requirement (after having secured the prior approval of

Transporter as to the design and construction of such

facilities, which approval shall not be unreasonably

withheld);

2. All gas shall contain no more than twenty (20) grains of

total sulfur (S), nor more than three-tenths (0.3) grain

of hydrogen sulfide (H2S) per one hundred (100) cubic

feet;

3. All gas shall contain no more than two-tenths of one

percent (0.2 of 1%) by volume of oxygen (O2), and

Operator shall make every reasonable effort to keep the

gas free of oxygen (O2);

4. All gas shall contain no more than four percent (4%) by

volume of a combined total of carbon dioxide (CO2) and

nitrogen (N2) components; provided, however, that the

total carbon dioxide (CO2) content shall not exceed two

percent (2%) by volume;