Septic rules in Wayne County
Wayne County's septic program sits in its Environmental Health unit, and the rule most owners meet is the county's evaluation ordinance, effective in September 1999. The county's septic page and a 2017 county brochure say that a house with a septic system outside the City of Detroit must be evaluated before sale, by the health department or by a registered private evaluator, and the system needs to be satisfactorily functioning before the sale may take place; we have not seen the ordinance text, so confirm the wording with the department.
The brochure says the evaluation includes locating the tank and drain field, pumping the tank and exposing the field, and that a failed system can still close if the owner gives assurance of correction. Our sources do not say who issues septic permits inside Detroit. The 2024 fee schedule lists a $358 evaluation by the health department, a $161 "transfer evaluation" that the schedule does not explain, a $471 septic permit and a $325 repair permit, and registered evaluators pay $150 a year.
Wayne has 23 of the 101 cities on this site, from Detroit to Livonia and Dearborn, and for any of them the first question is whether a city sewer already serves the street. The pre-sale inspection page explains the sale rule, and pumping in Wayne County covers the hauler side.
The county's rules, line by line
- Who permits septic systems
- Wayne County Environmental Health (Public Health), Wayne, Michigan
- Governing code
- Wayne County Sanitary Code; On-Site Sewage Disposal System Evaluation and Maintenance Ordinance No. 99-527 (effective September 1999)
- Inspection at sale
- Required outside the City of Detroit, per the county page and a 2017 brochure; confirm the wording with the department. A failed system can close with assurance of correction; escrow may be required.
- Permit steps
- A valid permit comes before installation; the county asks for a form, proof of a street address, the 10-digit parcel ID, a survey and legal description for new construction, a plot plan and fees. Permits last one year, per the county's page; confirm with the department.
- Installers and evaluators
- Registered evaluators for time-of-sale work, $150 a year (2024 schedule). No county installer license found.
- Records
- Ask Wayne County Environmental Health how to request the permit file for your address.
Septic fees in Wayne County
| Item | Amount | Note |
|---|---|---|
| Site evaluation, under 1,000 gal/day | $300 | Schedule effective Jan 16, 2024 |
| Septic permit, under 1,000 gal/day | $471 | Same schedule |
| Septic repair permit | $325 | Same schedule |
| Health department sale evaluation | $358 | Same schedule |
| "Transfer evaluation" (the schedule does not explain the term) | $161 | Same schedule |
Rules and fees change every year. Confirm with the health department before you rely on a line. "No rule found" means the pages and code we have say nothing on that line; it is not the county saying there is no rule. Use the county rules lookup to compare counties.
Septic services in Wayne County
- Septic pumping in Wayne CountyIn Wayne County a pumping is often part of the sale evaluation, so the pumper and the evaluator may be the same visit.
- Septic inspection in Wayne CountyWayne County inspections before a sale are done by the health department or a registered private evaluator, and the registered list is published each year.
- Drain field in Wayne CountyWayne County's brochure says its sale evaluation exposes the drain field, but the county pages we can cite do not give its isolation distances, so ask the department.
What septic work costs
These are the Michigan-wide estimates from our model, not Wayne County prices. The county's own permit and evaluation fees are in the table above.
| Job | Estimated range | Unit |
|---|---|---|
| Septic pumping | $255 to $810 | per visit |
| Septic inspection | $130 to $520 | per inspection |
| Drain field | $890 to $6,025 | per repair |
Estimates, not quotes. How we estimate costs.
All septic services
Cities in Wayne County
These cities, each with 10,000 or more residents, follow Wayne County rules for septic. Each city page points back here.