74:21:02:71Special Class I systems.

Any wastewater treatment system classified as Class I that serves 500 or more people using only stabilization ponds must be under the supervision of an operator who has been certified as a Class I Stabilization Pond or Class I (or higher) Wastewater Treatment Operator. The wastewater collection system for these systems must be under the supervision of an operator who has been certified as a Class I (or higher) Wastewater Collection Operator. Groundwater systems classified as Class I that serve less than 500 people that do not treat the water must be under the supervision of an operator who has been certified as a Class I Very Small Water System Operator or a Class I (or higher) Water Distribution Operator. Groundwater systems classified as Class I that serve less than 500 people that treat the water must be under the supervision of an operator who has been certified as a Class I Small Water Treatment System or Class I (or higher) Water Treatment Operator. The distribution system for these systems must be under the supervision of an operator who has been certified as a Class I (or higher) Water Distribution Operator.

Source: 27 SDR 53, effective December 4, 2000; 34 SDR 304, effective June 9, 2008.