IA SF2255

Establishes regulatory framework for private sewage disposal systems serving four or fewer dwelling units or fewer than 16 individuals, including septic tanks, holding tanks, and aerobic treatment units

Requires property owners to enter into lifetime monitoring and maintenance contracts with manufacturer-certified technicians before installing a private sewage disposal system, with copies provided to the county sanitarian

Mandates minimum inspection frequencies: Class A proprietary systems (media-based/passive filters) require annual inspections; Class B systems (mechanical aeration/fixed film) require inspections at least twice per year

Certified technicians must report all monitoring and maintenance results to both the system owner and county sanitarian, with county sanitarians performing inspections and filing reports as specified

Restricts Class B systems from use at vacation homes, churches, event facilities, or infrequent-use facilities due to higher maintenance requirements, with preference given to Class A systems and packed bed media filters where site conditions allow