Columbia Gas Transmission LLC

Third Revised Volume No. 1

Effective Date: 03/03/2009, Docket: RP09-340-000, Status: Effective

Original Sheet No. 362 Original Sheet No. 362

GENERAL TERMS AND CONDITIONS (Cont'd)

26. MEASUREMENT

The volumes of natural gas and the quantities of energy received or delivered through a meter or meters

shall be determined in accordance with the provisions set forth in this Section; provided, that Transporter

and Shipper may agree to determine such volumes and quantities of gas received or delivered pursuant to a

method or methods agreed upon by Transporter and Shipper in place of the construction and installation of a

meter and measuring station. Notwithstanding any other provision in this Tariff, Transporter shall not be

required to pay for or to construct or install facilities of any kind, including, but not limited to meters

and measuring stations.

26.1 Measurement Unit. The Measurement Unit shall be one Dekatherm (one Dth) of natural gas and shall be

calculated by multiplying the volume delivered in Mcf by a fraction, the numerator of which is the Heating

Value and the denominator of which is 1,000.

26.2 Volumetric Measurement Base. The volumetric measurement base shall be one cubic foot of natural gas at

a pressure base of fourteen and seventy-three one-hundredths (14.73) pounds per square inch absolute, a

temperature base of sixty degrees (60°) Fahrenheit (519.67° R Absolute), and without adjustment for water

vapor content.

26.3 Atmospheric Pressure. The average absolute atmospheric (barometric) pressure shall be assumed to be

fourteen and four-tenths (14.4) pounds per square inch, irrespective of actual elevation or location of the

delivery point above sea level or variations in actual barometric pressure from time to time.

26.4 Temperature. The temperature of the natural gas shall be determined at Transporter's option:

(a) where Electronic Measurement equipment is provided, by continuous application of instantaneous

temperature measurements from one or more of the meters at a measuring station, or by contemporaneous

application of the arithmetic or other average of the temperature Record from one or more of the meters for

the time during which gas is flowing;

(b) where Electronic Measurement equipment is not provided,

(1) where an instrument which measures and records the temperature of the flowing gas is

installed, by contemporaneous application of the arithmetic or other average of the

hourly or daily temperature Record from one or more of the meters at a measuring

station, or

(2) where an instrument which measures and records the temperature of the flowing gas is

not installed, by contemporaneous application of the temperature as read from

established tables of monthly averages for the point of measurement; or