Horizon Pipeline Company, L.L.C.

Original Volume No. 1

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Effective Date: 04/18/2002, Docket: CP00-129-001, Status: Effective

Original Sheet No. 205 Original Sheet No. 205 : Effective

GENERAL TERMS AND CONDITIONS

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18.12 FAILURE OF MEASURING EQUIPMENT

In the event any measuring equipment is out of

service, or is found registering inaccurately and the error is not

determinable by test, or by previous recordings, receipts or

deliveries through such equipment shall be estimated and agreed to

by the parties upon the first of the following methods which is

feasible:

(a) By correcting the error if the percentage of

error is ascertainable by calibration, special test, or

mathematical calculation, or in the absence of (a);

(b) By using the registration of any check meter or

meters, if installed and accurately registering, or in the absence

of both (a) and (b), then;

(c) By estimating the quantity of receipt or delivery

based on receipts or deliveries during preceding periods under

similar conditions when the measuring equipment was registering

accurately.

18.13 PRESERVATION OF RECORDS

Shipper and Horizon shall preserve for a period of at

least three (3) years, or for such longer period as may be

required by appropriate authority, all test data, charts and other

similar records.

18.14 THE SEQUENCE OF GAS RECEIPT

All gas delivered to Horizon by any Shipper under Rate

Schedule FTS shall be deemed to have been received by Horizon

prior to the receipt of any gas delivered under Rate Schedule ITS.