Portland General Electric Company

Original Volume No. 1

Effective Date: 12/03/2003, Docket: RP04- 48-000, Status: Effective

Original Sheet No. 36 Original Sheet No. 36 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

4. MEASUREMENT OF GAS (Continued)

filters may be required by Transporter. The party responsible for the

source of any pulsation shall also be responsible for the installation

cost of remedial devices or filtering equipment to reduce or eliminate

such pulsation. If disagreements over pulsation arise, a third-party

consultant acceptable to both Transporter and Shipper will be consulted

to resolve the problem.

4.8 Adjustment of Inaccuracies. Measurement data corrections should be

processed within 6 months of the production month with a 3 month rebuttal

period. This standard shall not apply in the case of deliberate omission

or misrepresentation or mutual mistake of fact. Parties' other statutory

or contractual rights shall not otherwise be dismissed by this standard.

(NAESB 2.3.14)

If the percentage of inaccuracy upon any test shall be an amount

exceeding two percent (2%), the registration of such meter shall be

corrected at the rate of such inaccuracy for any period which is

definitely known or agreed upon. In the event the period is not

definitely known or agreed upon, such correction shall be for a period

extending back one-half (1/2) of the time elapsed since the date of the

last calibration. In no event shall inaccuracies of less than two (2)

percent daily or 100 Dth monthly be corrected.

Following any test, measurement equipment found inaccurate shall

be immediately restored by the operating party as closely as possible to

a condition of accuracy. If the measurement equipment is out of service

or out of repair for any reason so that the amount of gas delivered

cannot be estimated or computed from the reading thereof, the amount of

gas delivered through the period such meter is out of service or out of

repair shall be estimated and agreed upon by the Transporter and

Receiving Party upon the basis of the best data available using the

first of the following methods which is feasible:

(a) by using the registration of the other party's check meter if

installed and accurately registering; or

(b) by correcting the error if the percentage of error is

ascertainable by calibration, test or mathematical calculation; or