Granite State Gas Transmission, Inc.

Fourth Revised Volume No. 1

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Effective Date: 03/01/2010, Docket: RP10-322-000, Status: Effective

Original Sheet No. 71 Original Sheet No. 71







4.6 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), then;


(c) by estimating the quantity of delivery by deliveries

during periods under similar conditions when the meter was

registering accurately.


4.7 Off-system delivery measuring station: In the event that

deliveries for Transporter's account are made at Delivery Points

off Transporter's pipeline system through the meters and measuring

equipment installed by others, then Transporter's and Shipper's

rights to check such equipment and to make adjustments for

correction of metering errors will be determined by the provisions

in the Tariff of the party through whose equipment delivery is

made for Transporter's account.


4.8 Preservations of metering records: Transporter and Shipper

shall each preserve for a period of at least one year all test

data, charts and other similar records.