El Paso Natural Gas Company

First Revised Volume No. 1-A

Effective Date: 09/01/1991, Docket: RP88- 44-019, Status: Effective

First Revised Sheet No. 212 First Revised Sheet No. 212 : Superseded

Superseding: Original Sheet No. 212

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

5. QUALITY (Continued)

(e) Carbon Dioxide - The gas shall not have a carbon dioxide

content in excess of two percent (2%) by volume, except

for gas applicable to Sections 5.2 and 5.3.

(f) Diluents - The gas shall not at any time contain in

excess of three percent (3%) total diluents (the total

combined carbon dioxide, nitrogen, helium, oxygen, and

any other diluent compound) by volume, except for gas

applicable to Sections 5.2 and 5.3.

(g) Dust, Gums and Solid Matter - The gas shall be

commercially free of dust, gums and other solid matter.

(h) Heating Value - The gas shall have a heating value of not

less than 967 Btu per cubic foot.

(i) Temperature - The gas received by El Paso shall be at

temperatures not in excess of one hundred twenty degrees

Fahrenheit (120~F) nor less than fifty degrees Fahrenheit

(50~F). Any party tendering gas at a temperature

standard less than fifty degrees Fahrenheit (50~F) shall

receive a waiver of such standard only if a test has been

conducted in accordance with procedures set forth in

Section 5.12(b) hereof and the results from such test

demonstrate that the particular segment of the pipeline

tested can be safely operated below the fifty degrees

Fahrenheit (50~F) temperature standard.

(j) Deleterious Substances - The gas shall not contain

deleterious substances in concentrations that are

hazardous to health, injurious to pipeline facilities or

adversely affect merchantability.

5.2 El Paso agrees that plant Receipt Points on El Paso's system,

where gas does not conform to the carbon dioxide and/or the

total diluent specification set forth in Sections 5.1(e) and

(f) above, shall be grandfathered based on the highest

non-conforming monthly average percentages of carbon dioxide

and total diluents for a month during the twelve (12) month

base period ended July 31, 1990. El Paso shall accept gas

with carbon dioxide and/or total diluents at percentages up to

the non-conforming specifications at volumes up to the residue

volume at the plant design capacity as it exists on July 31,

1990; provided, however, to the extent El Paso must curtail