Missouri septic system permits (MO)
In Missouri the county health department or the state permits onsite wastewater systems. Start here for the rules, the permit and the registered installer list.
Missouri septic system permits
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What you can look up here
- Septic systemsPermits, inspections, and records for septic systems.
- Environmental conditionsContamination, tanks, spills, and permitted facilities near a site.
About this resource
- Provided by
- Missouri Department of Health and Senior Services (official)
- Covers
- Missouri statewide
- Link status
- Opened normally at the last check
- Link checked
- Oct 13, 2026
- Web address
- https://health.mo.gov/business-professionals/onsite-wastewater-treatment
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