Montana Title 75. Environmental Protection § 75-5-511. Sewage system operators authorized to adopt charges and rates for users

(1) A municipality or other entity operating a sewage system may adopt a system of charges and rates to assure that each recipient of treatment works services within the municipality's jurisdiction or service area will pay its proportionate share of the costs of operation, maintenance, and replacement of any treatment works facilities or services provided by the municipality or other entity.

(2) A municipality or other entity operating a sewage system may require industrial users of its treatment works to pay to the municipality or other entity that portion of the cost of construction of the treatment works which is allocable to the treatment of such industrial user's wastes. The department may determine whether the payment required of the industrial user for the portion of the cost of the construction of the treatment works is properly allocable to the treatment of the industrial user's wastes.