Caledonia Gas And Storage

First Revised Volume No. 1

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Effective Date: 09/30/2010, Docket: RP10-1032-000, Status: Effective

Original Sheet No. 102 Original Sheet No. 102


13.2 Standards. The service unit of Gas scheduled, Received, or

Delivered by Caledonia under this Gas Tariff shall be a Dekatherm.

Dekatherms will be determined by multiplying the Mcf volume by the

ratio of the heating value per cubic foot to 1,000. The unit of volume

for measurement of all quantities of Gas shall be one (1) Cubic foot of

Gas at the base temperature of sixty degrees Fahrenheit (60 degrees F)

and at an absolute pressure of fourteen and seventy-three hundredths

(14.73) pounds per square inch and dry. One thousand (1,000) cubic feet

shall be denoted as 1 Mcf. All fundamental constants, observations,

records, and procedures involved in determining and/or verifying the

quantity and other characteristics of Gas Delivered hereunder shall,

unless otherwise specified herein, be in accordance with the standards

prescribed in Report No. 9 of the American Gas Association (“AGA”), as

now in effect and from time to time amended or supplemented. All

measurements of Gas shall be determined by calculation into terms of

such unit. Notwithstanding the foregoing, it is agreed that, for all

purposes, the Btu content of the Gas Received and Delivered by

Caledonia hereunder shall be measured on a “dry” basis rather than a

fully saturated or “wet” basis. For Gas volumes reported in cubic

meters, the standard conditions are 101.325 kPa, 15 degrees C, and dry.

If positive displacement, ultra sonic flow or turbine meters are used,

measurement shall be performed in accordance with AGA 9 as currently

available and with any subsequent amendments thereof accepted by

Caledonia in its reasonable judgment. The temperature of the Gas

flowing through a meter station shall be obtained by the use of a flow

computer. The temperature of the Gas during the measurement period

shall be used in computing the quantities of Gas Delivered during such

period. The heating value and the specific gravity shall be determined

by on-line C6+ chromatographic analysis of the Gas stream. The values

of the physical constants for the Gas compounds and the procedure for

determining the gross heating value and/or the specific gravity of the

Gas from them shall be as set forth in the referenced AGA Report No. 9.