If a capacity constraint is anticipated or planned (for example, due to system
maintenance), Caledonia shall post a notice of the anticipated constraint on
its Internet Web Site at least forty-eight (48) hours in advance of the start
of the constraint period.
   
4.2     Advanced Interruptible Storage Service and Advanced Interruptible Loan
Service.  Agreements relating to Advanced Interruptible Storage Service and
Advanced Interruptible Loan Service obligations and extensions of the service
shall have priority as follows:
   
(a)     The order of priority relating to service requests for service
under the AISS and AILS Rate Schedules shall be based on the highest present
value to Caledonia over the term of the Service Agreement, as calculated by
the formula set forth in Section 3.2(c), above.
   
(b)     Should two or more requests under Advanced Interruptible Storage
Service or Advanced Interruptible Loan Service by Customers have the same
priority, capacity will be allocated to each Customer on a pro rata
basis.
   
4.3     Interruptible Service and Authorized Overrun Quantities.  Agreements
relating to Interruptible Storage Service and Interruptible Loan Service
obligations and Authorized Overrun Quantities (as set forth in FSS, AISS, ISS,
AILS, and ILS Rate Schedules) and extensions of the service shall have
priority as follows:
   
(a)     The order of priority relating to service requests for service under
the ISS and ILS Rate Schedules and Authorized Overrun Quantities under all
Rate Schedules shall be based on the average daily interruptible storage,
loan, injection, withdrawal or overrun charge agreed to by Caledonia and
Customer, with the highest charge calculated on a daily basis given highest
priority.
   
(b)     Should two or more requests under Interruptible Storage Service,
Interruptible Loan Service or Authorized Overrun Quantities under all Rate
Schedules by Customers have the same priority, capacity will be allocated to
each Customer on a pro rata basis.
   
4.4     Interruption.
(a)     If on any Day Caledonia s capability to receive or deliver quantities
is impaired so that Caledonia is unable to receive or deliver all the
quantities which are scheduled, then interruption of service shall be made in
the reverse order of priority set forth in Sections 4.1, 4.2 and 4.3.  If Firm
Storage Service must be interrupted, interruption of service to FSS Customers
shall be pro rata based on ADWQ, ADIQ or MSC, as applicable.  Interruption of
service to Interruptible Storage Service Customers, Interruptible Loan Service
Customers and to Customers utilizing Authorized Overrun Quantities under all
Rate Schedules shall be based on the charges paid by Customer, with the
transaction at the lowest price to Caledonia being interrupted first.  Any
ties shall be interrupted on a pro rata basis.