Blue Lake Gas Storage Company

First Revised Volume No. 1

Effective Date: 11/01/2007, Docket: RP08- 17-000, Status: Effective

Third Revised Sheet No. 137 Third Revised Sheet No. 137 : Effective

Superseding: Second Revised Sheet No. 137

GENERAL TERMS AND CONDITIONS

(Continued)

(1) The unit of volume for the purpose of measurement shall be

one thousand cubic feet of Gas at a temperature of sixty

degrees (60º) Fahrenheit and a pressure of 14.73 pounds per

square inch absolute, dry. Volumes reported in cubic

meters, the standard conditions are 101.325 kPa, 15 degrees

C, and dry. Volumes reported in Gigacalories, the standard

conditions are 1.035646 Kg/cm2, 15.6 degrees C, and dry.

The Dekatherm equivalent of such unit of volume shall be

determined by multiplying each such unit of volume by the

total heating value per cubic foot of the Gas delivered

hereunder (adjusted to a common temperature and pressure

base) and by dividing the result by one thousand (1,000).

(2) The average absolute atmospheric (barometric) pressure

at the Point of Injection/Withdrawal shall be assumed to

be equal to 14.4 pounds per square inch.

(3) The flowing temperature of the Gas shall be determined by

means of an instrument of standard manufacture accepted

in the industry for this purpose.

(4) The supercompressibility factor used in computing the

volume of Gas delivered through an orifice meter shall be

determined in a manner which yields results consistent

with the results produced by the procedures presented in

the American Gas Association Transmission Measurement

Committee Report No. 8 entitled "Compressibility and

Supercompressibility for Natural Gas and Other

Hydrocarbon Gases."

(5) The specific gravity of the Gas used in computing the

volume of Gas delivered through a meter shall be

determined by one of the following methods:

(i) At intervals of not more than six (6) Months, by

means of an instrument of standard manufacture

accepted in the industry for this purpose using a

sample of Gas from the Gas stream at the Point of

Injection/Withdrawal.

(ii) By means of an instrument of standard manufacture

accepted in the industry for this purpose installed

at a point to measure the specific gravity of the

Gas stream from which Gas is being delivered at the

Point of Injection/Withdrawal.