Portland Natural Gas Transmission System

Second Revised Volume No. 1

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Effective Date: 09/01/2006, Docket: RP06-449-000, Status: Effective

Original Sheet No. 332 Original Sheet No. 332 : Effective






8.1 Daily Balancing Obligations.


(a) Transporter. To the best of its ability, Transporter shall

monitor Nominations, deliveries, and receipts for each transportation

transaction and, based upon available information, notify Shipper(s) of any

scheduling, imbalance, or overrun problem which has occurred, or may occur

unless corrective action is taken. Transporter shall not be obligated on any

Day to receive from Shipper at any Receipt Point, or make available to Shipper

at any Delivery Point, any quantity of Gas in excess of such Shipper's

Scheduled Quantity for that Receipt or Delivery Point. Any allocation of

scheduled receipt or delivery quantities due to operational conditions

occurring during the gas Day shall be reported to the affected Shipper(s)

within one Business Day of the end of the Day in which such allocation



(b) Shippers.


(1) Each Shipper shall ensure that each of its Scheduled

Quantities on any Day does not exceed its MDQ for the applicable Primary

Receipt Point or Primary Delivery Point; provided, however, that Shipper may

exceed its MDQ to deliver make-up quantities when capacity is available and

subject to the capacity allocation procedures of Section 7 herein. If Shipper

designates Secondary Receipt and/or Delivery Point(s) on any Day, the sum of

its Receipt Point Scheduled Quantities on that Day shall not exceed the sum of

the MDQs specified in Schedule 1 of its Gas Transportation Contract, and the

sum of its Delivery Point Scheduled Quantities shall not exceed the sum of the

MDQs specified in Schedule 2 of its Gas Transportation Contract.


(2) For each Day on which Transporter receives Gas from or

delivers Gas to multiple Shippers at a common Receipt or Delivery Point, and

on which the total quantities received or delivered exceed or fall short of

the sum of all affected Shippers' Scheduled Quantities for such Day, Shippers

whose quantities are commingled at such Delivery or Receipt Point not subject

to an Operational Balancing Agreement shall have the obligation to accept the

pre-determined allocation method in effect for that meter for each allocation

period for which the Shipper has scheduled deliveries or receipts.

Transporter shall allocate quantities in accordance with Operational Balancing

Agreements with the operator of the common Receipt or Delivery Point to the

extent operational balancing agreements are in effect at such points.


(3) To the best of its ability, Shipper shall on a Daily