Manitowoc County and the State of Wisconsin require that all Private Onsite Wastewater Treatment Systems (POWTS) be inspected every 3 years to ensure their proper operation.
The program requires visual inspection of the entire septic system and pumping of the septic tank when sludge and scum volume equals one-third of the tank volume. The inspection must be conducted by a licensed master plumber, a licensed master plumber - restricted service, a certified POWTS inspector, a registered POWTS maintainer, or a certified septage servicing provider (pumping service).
Complete Inspection of a POWTS is required:
- upon conveyance, merger, partition, subdivision, or transfer of the property on which the POWTS is located or of the property on which a structure serviced by the POWTS is located.
- when a required 3 year maintenance inspection reveals that the POWTS is not in compliance.