GENERAL TERMS AND CONDITIONS
                           (Continued)
   
             (1) By correcting the error if the percentage of
     error is ascertainable by calibration, special test, or
     mathematical calculation; or, in the absence of (1),
   
            (2)  By using the registration of any check meter
     or meters if installed and accurately registering; or, in
     the absence of (1) and (2),
   
            (3) By estimating the quantity of Gas receipts or
     deliveries based on receipts or deliveries during the
     preceding periods under similar conditions when the meter
     was registering.
   
         Measurement errors shall be processed within six Months
     of the production Month with a three-Month rebuttal period.
     `This standard shall not apply in the case of deliberate
     omission or misrepresentation or mutual mistake of fact.
     Parties other statutory or contractual rights shall not
     otherwise be diminished by this standard.
   
         14.10 If at any time a new method or technique is
     developed for Gas measurement or the determination of the
     factors used in the Gas measurement, Clear Creek may
     substitute the new method or technique upon notification to
     all parties.
   
         14.11 The parties agree to preserve for a period of at
     least three years, or such longer period as may be required
     by public authority, all test data, charts, if any, and
     other similar records.
   
         14.12 Gas quantities determined according to this
     section shall be used for billing, balancing and calculation
     of fuel use.  Clear Creek shall use the best information
     available to close its allocation of quantities for each
     Month of service.  The cutoff for the closing of measurement
     shall be five Business Days after the applicable service
     Month.
   
         If adjustments are made after the date measurement is
     closed, the prior period adjustments (PPA) shall be
     administered under this section.  PPA adjustments due to the
     correction of measurement data shall be processed within six
     Months of the applicable service Month.  Any affected party
     that disputes the adjusted quantities may rebut the basis
     for the PPA; however, such rebuttal must occur within three
     Months of processing.  Any time limits set forth in this