Midwestern Gas Transmission Company

SECOND REVISED VOLUME NO. 1

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Effective Date: 09/01/1993, Docket: RS92- 41-003, Status: Effective

Original Sheet No. 69 Original Sheet No. 69 : Effective

GENERAL TERMS AND CONDITIONS

5. Calibration and test of meters: The accuracy of Transporter's, Shipper's, or

Operator's measuring equipment shall be verified at reasonable intervals and,

if requested, in the presence of representatives of Transporter, Shipper, or

Operator, but no party shall be required to verify the accuracy of such

equipment more frequently than once in any thirty-day period. In the event that

a party shall notify the other parties that it desires a special test of any

measuring equipment the parties shall cooperate to secure a prompt verification

of the accuracy of such equipment. The expense of any such special test, if

called for, shall be borne by the requesting party if the measuring equipment

tested is found to be in error not more than two percent.

If, upon test, any measuring equipment is found to be in error by not more than

two percent, previous recordings of such equipment shall be considered accurate

in computing deliveries of gas, but such equipment shall be adjusted at once to

record accurately.

If, upon test, any measuring equipment shall be found to be inaccurate by an

amount exceeding two percent, at a recording corresponding to the average hourly

rate of flow for the period since the last preceding test, then any previous

recordings of such equipment shall be corrected to zero error for any period

which is known definitely, but in case the period is not known or agreed upon,

such correction shall be for a period extending over one-half of the time

elapsed since the date of last test, not exceeding a correction period of

sixteen days.

6. Correction of metering errors - failure of meters: In the event a meter is out

of service or registering inaccurately, the volume of gas delivered shall be

determined:

(a) by using the registration of any check meter or meters, if installed and

accurately registering; or, in the absence of (a);

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

calibration, tests, or mathematical calculation; or, in the absence of

both (a) and (b);

(c) by estimating the quantity of delivery by deliveries during periods under

similar conditions when the meter was registering accurately.