Mont. Code Ann. § 7-13-3016

The records of the district pertaining to the collection of the operation and maintenance tax levied and the records of the district pertaining to expenditures for construction of the system must be kept and maintained in the office of the treasurer of the local government where the district is located. These records must include but not be limited to a list of individual property that is delinquent in payment, together with the name of the owner or owners of the property.