Discovery Gas Transmission LLC

Original Volume No. 1

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Effective Date: 01/01/2008, Docket: RP08- 70-001, Status: Effective

First Revised Sheet No. 171 First Revised Sheet No. 171 : Effective

Superseding: Original Sheet No. 171

13. GAS QUALITY

13.1 SPECIFICATIONS - Except to the extent permitted by the Transporter on a

not unduly discriminatory basis, all Gas received by Transporter from

Shipper shall conform to the following quality specifications:

a. Heating Value. The Gas shall have a heating value of not less

than nine hundred seventy Btus per standard cubic foot (970

Btus/SCF) at 14.73 PSIA.

b. Water Vapor. The Gas shall not contain more than seven pounds of

water per million standard cubic feet (7 lbs/MMcf).

c. Oxygen. The Gas shall not contain more than two-tenths of one per

cent (0.2%) by volume of oxygen.

d. Carbon Dioxide and Nitrogen. The Gas shall not contain more than

two per cent (2%) of carbon dioxide nor more than three per cent

(3%) by volume of a combined total of carbon dioxide and nitrogen.

e. Hydrogen Sulfide. The Gas shall not contain more than one-quarter

grain of hydrogen sulfide per one hundred standard cubic feet (1/4

gr/100 SCF).

f. Mercaptans. The Gas shall not contain more than one-quarter grain

of mercaptans per one hundred standard cubic feet (1/4 gr/100

SCF).

g. Total Sulfur. The Gas shall not contain more than five grains of

total sulfur per one hundred standard cubic feet (5 grs/100 SCF).

h. Dust, Gums and Solid Matter. The Gas shall be commercially free

from dust, gums, gum-forming constituents, and other solid matter.