(b)     Subject to the limitations and requirements set forth in this Rate
Schedule and in Customer s ILS Service Agreement, Customer shall be permitted
to request Caledonia to:
   
(i)     loan to Customer, on an interruptible basis, quantities of Gas, up to
the Customer s Maximum Interruptible Loan Quantity (MILQ) on a daily basis not
to exceed the Maximum Daily Withdrawal Quantity (MDWQ), as limited by the ADWQ
set forth in Exhibit A of Customer s ILS Service
Agreement.
   
(ii)     return to Caledonia, on an interruptible basis, thermally equivalent
quantities of Gas, up to the Maximum Daily Injection Quantity (MDIQ), as
limited by the ADIQ set forth in Exhibit A of Customer s ILS Service
Agreement, on a daily basis, provided that Caledonia shall not be obligated
under this ILS Rate schedule on any Day to accept return of Gas in excess of
the working gas quantities loaned from storage for Customer, plus sufficient
quantities for Fuel Reimbursement.