20070917Public Notice.pdf

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A VISTA UTILITIES
Exhibit "
Notice to Public of Applicant's Proposed Tariffs
September 14 2007
VISTA UTILITES
NOTICE OF IDAHO TARIFF CHANGE
(Natural Gas Service Only)
Notice is hereby given that the "Sheets" listed below ofTariffIPUC No. 27 , covering
natural gas service applicable to Idaho customers of A vista Utilities have been filed with
the Idaho Public Utilities Commission (IPUC) in Boise, Idaho.
Tenth Revision Sheet 150 canceling Ninth Revision Sheet 150 and
Seventh Revision Sheet 155 canceling Sixth Revision sheet 155
Tenth Revision Sheet 150 updates the forward-looking cost of natural gas purchased for
customer usage. Sixth Revision Sheet 155 updates the amortization rate used to recover
previous gas cost differences.
If the proposed tariffs are approved by the IPUC, total Company Idaho revenues will decrease
by approximately $4.0 million per year, or about 4.6%. This request is a Purchased Gas Cost
Adjustment (PGA) that is filed annually to reflect changes in the cost of gas purchased to serve
customers. Any increases or decreases resulting from these PGA filings directly result from
the cost of gas purchased in the marketplace; A vista makes no additional profits from these rate
changes.
A residential or small business customer served under Schedule 101 using an average of
65 thenns per month can expect to see an average decrease of approximately $3.65 per
month, or about 4.6%. Larger commercial customers served under Schedules 111 and
121 can expect to see an average decrease of about 5.2% and 5.5% respectively, with the
higher percentages due to lower base rates. However, actual customer decreases will
vary based on thenns consumed.
This filing requests an effective date of November 1 , 2007.
Copies of the proposed tariff changes are available for inspection in the Company
offices or can be obtained by calling [phone] or writing:
Avista Utilities
Attention: Ms. Patty Olsness
O. Box 3727
Spokane, W A. 99220-3727
September 14, 2007