Wyo. Stat. § 15-7-407 (2026)

(a) The board shall fix the rates for water, sanitary
sewer services and electric service furnished to customers, and
any revision thereof is subject to the local governing body's
review, modification and approval. The rates shall secure an
income sufficient to:

          (i) Pay the interest charges and principal payments
on all bonds issued to pay the purchase price, construction
cost, extensions and enlargements of the respective systems as
they are due;

          (ii)   Pay all salaries and wages of the officers and
employees;

          (iii) Cover the cost of all materials and supplies
used in the operation of the plants;

          (iv)   Cover all miscellaneous expenses;

          (v) Cover all usual extensions and enlargements,
together with a reasonable allowance for emergency and
unforeseen expenses; and

          (vi) Provide and maintain a depreciation fund for
each department.

     (b) The board shall account for the depreciation of the
water plant and of the sanitary sewer system, including sewage
disposal plant or plants, using rates of depreciation approved
by the board and the local governing body. The depreciation fund
shall be used only to pay for replacements and additions to the
waterworks, sanitary sewer systems and sewage disposal plants.
Replacements and additions shall be capitalized and the capital
value added to the value of the systems to establish the value
of the plants for depreciation purposes. The local governing
body may by ordinance fix special rates for water, electric or
sanitary sewer services furnished to the governing body of the
city or town for public purposes, or to organized institutions
of charity, or to any person who is eligible for assistance
under W.S. 39-11-109(c)(ii) through (vii).