Dominion Cove Point LNG, LP

Original Volume No. 1

Effective Date: 05/01/2003, Docket: RP03-341-000, Status: Effective

Original Sheet No. 271 Original Sheet No. 271 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

19. MEASUREMENTS AND TESTS FOR DELIVERY OF NATURAL GAS (Continued)

(l) Correction of Metering Errors. If, upon any test, any measuring equipment is found to

be in error, such that the resultant aggregate error in the computed volumes of gas

and quantities of energy received or delivered does not exceed two percent (2%), such

errors may be taken into account in a practical manner in computing the volumes of gas

and quantities of energy received or delivered. All equipment shall, in any case, be

adjusted at the time of test to record correctly. If, however, the resultant

aggregate error in the computed volumes of gas and quantities of energy received or

delivered exceeds two percent (2%), previous recordings of such equipment, and the

corresponding volumes of gas and quantities of energy received or delivered, shall be

corrected to zero error for any period which is known definitely or agreed upon, but

in case the period is not known definitely or agreed upon, such correction shall be

for a period extending over one half of the time elapsed since the date of the last

test, not exceeding a correction period of sixteen (16) days.

(m) Failure of Measuring Equipment.

(1) In the event any measuring equipment is out of service, or is found registering

inaccurately and the error is not determinable by test, previous recordings from

such equipment, or the volumes of gas or quantities of energy received or

delivered through such equipment, shall be estimated:

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

accurately registering;

(ii) in the absence of check meters, by correcting the error if the percentage

of error is ascertainable by calibration, special test or mathematical

calculation;

(iii) in the absence of check meters or the possibility of calibrations, by

using recordings or quantities received or delivered through such

equipment during periods under similar conditions when the equipment was

registering accurately; or

(iv) as otherwise agreed by Operator and Buyer.

(2) The recordings from such equipment, or the volumes of gas and quantities of

energy received or delivered through such equipment, so estimated shall be used

in determining the volumes of gas and quantities of energy received or delivered

for any known or agreed upon applicable period. In case the period is not known

or agreed upon, such estimated receipts or deliveries shall be used in

determining the quantity of gas received or delivered hereunder during the latter

half of the period beginning on the date of the immediately preceding test and

ending on the date the measuring equipment has been adjusted to record

accurately. The recordings of the measuring equipment during the first half of

said period shall be considered accurate in computing receipts or deliveries.