Minn. Stat. § 412.371: SEPARATE CITY FUND FOR EACH UTILITY.

Subdivision 1. For all utility money in and out.

A separate fund or a separate account shall be established in the city treasury for each utility. Into this fund or account shall be paid all the receipts from the utility and from it shall be paid all disbursements attributable to the utility.

Subd. 2. Must audit like city.

The commission shall, in the same manner as the council under section 412.271, subdivision 1, and to the same extent, audit claims to be paid from the public utilities fund. The secretary of the commission shall draw an order upon the treasurer for the proper amount allowed by the commission.

Subd. 3. Checks paid like city.

Upon counter signature by the president of the commission and presentation orders shall be paid by the treasurer.