Classification of Drinking Water
Subsystems and Wastewater Facilities
Most drinking water and wastewater systems
are required to be classified.
Classification is a means to determine the
relative operational complexity of a system.
The relative complexity will then help
determine the certification requirements for
individuals operating those systems.
The following forms are used to classify a
new drinking water subsystem, wastewater
facility or to re-classify an existing
subsystem/facility that has undergone
infrastructure changes and thus warrants
review and re-classification. Municipal
residential subsystems/facilities may be
classified from Class 1 to 4 depending on
the complexity of the subsystem/facility.
Residential Water Treatment Subsystem
Municipal Residential Water Distribution -
Supply Subsystem Classification
Municipal Wastewater Treatment Facility
Municipal Wastewater Collection Facility
A Guide to Completing Ministry of the
Environment Water and Wastewater Operator
Certification and Facility Classification