Clermont County Septic Permits (2026): Fees & Rules

Clermont County rewrote its septic rules on March 1, 2026, and the rewrite took something away: the Acceptable Operation and Maintenance track that let well-behaved systems be inspected half as often is gone. Every household system in the county sits in Clermont County Public Health’s operation permit program, and the assessment clock is now every 12 months for a discharging system, every 19 months for anything with electrical components, and every 38 months for the rest. The county ran 6,513 operation permit inspections in 2025. This is the most actively managed septic program of any county we cover.

What Does a Septic Permit Cost in Clermont County?

The fee schedule updated November 12, 2025 is public, and these are the septic lines we could read from it without guessing. One honest caveat first: the septic page of that PDF is laid out in a way that separates the labels from the amounts when the file is read electronically, so a handful of rows cannot be paired reliably and are not printed here.

Two rows on the schedule carry the $74 state fee and total $674 and $874. Ohio Administrative Code 3701-29-05(C)(3) attaches that $74 only to permits for a new or replacement system, and $35 only to alterations, so those two are the county’s new and replacement installation permits, one of them the variant that also covers a greywater recycling system. Which of the two applies to your project is a question for the office rather than for us, and that is exactly the kind of guess this site does not make. The registration fees above are corroborated by the county’s own 2026 registration application, which prints $125, $125 and $75 per truck.

A separate form, the Homeowner Inspection Request, prices a household sewage treatment system inspection at $180. That figure does not appear in the septic section of the November 2025 schedule, so treat it as the form’s number and confirm it when you book. A further fee resolution had its first reading scheduled for August 12, 2026, and Clermont takes three readings, so expect movement late in the year. For what the system itself costs, see our cost guides.

Who Issues Septic Permits in Clermont County?

Clermont County Public Health is the health district for the whole county, covering 14 townships, nine villages and the City of Milford, and about 214,000 residents.

Clermont County Public Health
2275 Bauer Road, Batavia, OH 45103
Phone: (513) 732-7499
Web: clermonthealthohio.gov

Note the address of the website as much as the office. The department moved from its older domain, and pages still live on the legacy site that no longer match the current regulation. If two pages disagree, the current one is the one on clermonthealthohio.gov and the regulation beats both.

How the Permit Process Runs, Step by Step

Clermont publishes a required package rather than a numbered sequence. Put the department’s own application requirements together with the state rules that apply everywhere in Ohio and the order comes out like this.

• Soil evaluation and design come first. Ohio rule 3701-29-09(A) requires the board of health to run a site review for a new, replacement or altered system, and that review takes in a soil evaluation under rule 3701-29-07 and a design under rule 3701-29-10. An approved site review stays valid five years so long as the site conditions and the design do not change. Clermont wants both in the package: the soil report, and the layout plan from a registered designer.
• Then the surveyor’s site plan. The county asks for a site plan from a licensed surveyor, no larger than 11×17 inches and to scale, showing where the system goes, with the surveyor’s signature and seal.
• Collect the rest before you file. The department states that the application “cannot be initiated without all required information.” For new construction that means the floor plan on paper no larger than 11×17 inches showing every floor and the basement, the property address, the tax parcel number from the County Auditor’s office, a zoning permit from your local zoning office, the water supply type with a private water application submitted for approval alongside the septic application, water main easements confirmed and drawn on the site plan for properties on Tate-Monroe Water Association, the location of a geothermal system where there is one, and the application fee.
• File it. The department’s septic pages link the county’s online permit portal (Citizen Self-Service) as well as the office at 2275 Bauer Road.
• Build only under the permit. Rule 3701-29-09(B) makes the installation permit valid one year from issue, and the board may extend it six months. Rule 3701-29-09(D) allows the work to be done only by a registered installer under that permit.
• Inspections, four of them, before the system is closed up. Rule 3701-29-09(E) has the board inspect the installation promptly, in its own words to “reduce the potential damage that can occur from leaving the system open without final cover.” Locally, section 415-10(B) puts four inspections in the cost of the permit and charges a re-inspection fee for any beyond that, and the disturbed soil absorption area is seeded and strawed.
• Paperwork closes the job. The registered installer’s as-built record goes to the board within fifteen days of the final inspection under section 415-04.4(F), and rule 3701-29-09(H) brings the board back to look at the system running, no later than twelve months after the installation is approved.
• Then the operation permit takes over. Every household system in Clermont is in the program, assessed every 12 months where the system discharges under an Ohio EPA NPDES permit, every 19 months where it has electrical components, and every 38 months where it has neither, under section 415-11(B).

Replacing or repairing an existing system is a shorter package: a floor plan on 8½×11 paper, the parcel identification number, the property address, the water easement and geothermal location where those apply, and the fee. Source: Clermont County Public Health, new construction and repair-or-replace permit pages, read 2026-09-07.

Regulation 415, Rewritten March 2026

Clermont’s local instrument is Regulation 415, Sewage Treatment System Rules, and the version in force took effect on March 1, 2026 under Resolution 01-26, adopted unanimously on February 11, 2026. These are the provisions that change what a project looks like.

• Your design has to come from outside the health department. Section 415-04.4(C) requires a design plan from a source outside the Board of Health for every new and replacement system and every major alteration, unless the application is a remediation addressing a health nuisance. Section 415-04.4(E) then charges a redesign fee for a major revision — a change of system type or of designed daily flow — or for more than two minor ones. (Section 415-04.4(A), the three-designs rule, is about designers rather than projects: a designer submits three different designs to get onto the county’s designer list.)
• Four inspections included. Section 415-10(B): “Four inspections are included in the cost of a permit. Any additional inspections will result in a re-inspection fee.” The site must be seeded and strawed at final inspection.
• What counts as an alteration. Section 415-09 pulls in layout, component and flow changes, replacing more than 20 feet of piping, and every tank replacement. Swapping a tank is a permitted alteration here, not maintenance.
• Discharging systems. Section 415-05(A) requires an Ohio EPA NPDES permit and pump lock-out technology.
• No septage land application. Section 415-04.2(A) does not permit land application of septage in Clermont County, apart from treated composting-toilet waste used on site.
• Drywells are on a clock. Section 415-16 eliminates drywell components by December 31, 2045.
• As-built in 15 days of final inspection, under section 415-04.4(F); the application itself expires five years from the approval date.

The rewrite also retired SNARP, the county’s old repair-plan mechanism, replacing it with an incremental repair plan and a defined “remediation” application and permit. A public SNARP page was still live when we checked, which is why the regulation, not the website, is the thing to read.

The Operation Permit Program, and the Bill That Follows You

Every household system in Clermont is enrolled, assessment intervals are set in the regulation, and the operation permit fee attaches to the property rather than to the person who owned it when the invoice went out.

Section 415-11(B) sets the intervals: once every 12 months for a system under an NPDES permit, once every 19 months for a system with electrical components, once every 38 months for everything else. Townships are worked on a rotating schedule. Since March 2026 an owner may submit an assessment carried out by a registered service provider within 90 days of renewal instead of waiting for the county’s visit, and every time-dosed system must hold a service contract with a registered service provider.

The department’s published collection process gives 30 days to pay from an invoice issued a few days after the inspection, adds late fees after 60 days, and after 90 days allows the fee to be certified against the property, with the objection route running through Ohio Revised Code 3709.091 and, if pressed, the Court of Common Pleas. That description sits on the department’s legacy site and names an official who has since retired, so confirm the current procedure with the office. The direction of travel is not in doubt: the fee survives a sale.

One thing did get gentler. Under section 415-11(E)(1), a documented repair completed before the deadline waives the re-inspection fee.

Which Contractors You Can Use

Ohio issues no septic license, so Clermont’s published registration lists are the credential to check.

As of April 17, 2026 the county listed 43 registered septic installers, 33 registered service providers and 31 registered pumpers and haulers. A separate consultant list revised in March 2026 names 13 designers, four layout-plan providers, four site and soil evaluators and three consultants, with the department’s own disclaimer that it does not endorse consultants. Under Ohio Administrative Code 3701-29-03 registration lapses at the end of each calendar year and requires $500,000 of general liability cover, six continuing-education hours annually, and a statewide surety bond on the Ohio Department of Health’s form: $40,000 for an installer doing more than one system a year, $25,000 for a service provider (reduced to $15,000 with dual installer registration), $25,000 for a septage hauler. Regulation 415 also puts soil work in private hands: all site and soil work must be done by a registered soil scientist. See how we verify for what we check before a company appears on this site.

If replacement is unaffordable, Clermont runs a Septic System Rehabilitation Financing Program, and it was loosened on December 10, 2025: the requirement for a Notice of Violation or a declared public health nuisance was removed and the site-assessment score threshold lowered. Properties scoring 19 or higher are funded, the system value should not exceed 35% of the total value of land and building, and the limit is one replacement or one sewer connection per property. Seventeen applications came in during 2025 and nine jobs were awarded. Our repair guide covers what a failing system usually needs.

Clermont County Permit FAQs

How much is a septic permit in Clermont County?

An alteration permit is $335 and a remediation installation permit is $635, both including the state portion, and the two new or replacement installation rows on the county schedule total $674 and $874. The county’s published PDF does not pair every label to its amount when read electronically, so confirm which row applies to your system with the office on (513) 732-7499 before you budget.

How often does Clermont County inspect septic systems?

Every 12 months for systems under an NPDES discharge permit, every 19 months for systems with electrical components, and every 38 months for everything else. Those intervals are set in Regulation 415-11(B), effective March 1, 2026. The county carried out 6,513 operation permit inspections in 2025.

What happened to the Acceptable Operation and Maintenance program?

It was abolished in the March 2026 rewrite of Regulation 415. Existing AO&M designations run to the expiry of the current permit and then revert to the standard interval, and no new ones will be granted. If your inspection cycle has just halved in length, this is why.

Do I need a permit to replace a septic tank in Clermont County?

Yes. Regulation 415-09 treats every tank replacement as an alteration requiring a permit, along with any replacement of more than 20 feet of piping. The alteration permit is $335. Starting work without a permit adds a penalty of 25% of the applicable fees.

Does an unpaid operation permit fee follow the house when it sells?

The department’s published collection process says the fee attaches to the property and can be certified against it after 90 days. Ask for the operation permit status along with the permit file when you are buying; the seller’s unpaid invoice becomes the buyer’s problem, and Ohio Revised Code 3709.091 is the mechanism.

Sources: Clermont County Public Health, Fee Schedule (updated 11/12/25); Regulations of the Board of Health of the Clermont County General Health District, Regulation 415, Sewage Treatment System Rules, effective March 1, 2026, adopted by Resolution 01-26 on February 11, 2026; Board of Health minutes of December 10, 2025, February 11, 2026 and June 10, 2026, and the tentative agenda for August 12, 2026; 2026 registration application; Homeowner Inspection Request form; registered installer, service provider and pumper lists dated April 17, 2026; consultant list revised March 2026; Clermont County Septic System Rehabilitation Financing Program Plan (revised 12/10/25); CCPH Annual 2025 Report. All read August 7, 2026. Ohio Administrative Code Chapter 3701-29. Fees change; confirm before filing.

Ground conditions, registered contractors and the wider picture: Clermont County septic hub. How permitting works elsewhere in the state: Ohio permit guides.