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Adrian · Lenawee County · Michigan

Septic in Adrian, MI

Adrian septic work goes through Lenawee County, where installers need a county license that expires every May 31. A construction permit was $205 on the schedule updated Feb 24, 2026.

Residents
20,493
Homes built before 1980
74.4%
Median home value
$119,900

Census figures: ACS 2023 five-year estimates (B01003, B25034, B25077).

Written by the SepticMatch editorial teamLast reviewed Oct 19, 2026

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Lenawee County sets the septic rules

Septic permits, sale inspections and installer rules are set by the county health department, not by the city. Annual installer licenses that expire May 31.

Who permits septic systems
Lenawee County Health Department
Inspection at sale
No rule found in the county's published code
Permit steps
Site evaluation of isolation from water supplies, soil permeability, seasonal high water table and land area; permit; online payment portal.

See the Lenawee County septic rules

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