The Marshalltown Water Works Board of Trustees is in charge of setting the Policy and Regulations by which the Utility operates considering all Federal and State regulations. The Treatment Plant can treat 12 million gallons per day to 147 miles of water mains to 10127 customers who are billed bi-monthly except larger users who are billed monthly. The utility contracts with CIRWA to provide treated water to parts of 13 counties and 30 other small communities in central Iowa.
Per code 31.046 the Mayor shall appoint, subject to the approval of the Council, three persons to serve as trustees. The appointment shall provide for six-year terms for the Board of Trustees. No public officer or salaried city employee may serve on the board.