Buying a Home With a Septic System or Private Well in Central Ohio: What to Check First

Inspector checking a well cap in the yard of a country home.

Many Central Ohio homes outside city sewer and water lines rely on a septic system or private well. Here is how to inspect both, what Ohio's disclosure form covers, which water tests are suggested, and which questions to ask before you buy.

Not every Central Ohio home is on city sewer and water. Many properties in townships and rural areas, and some within city limits, rely on a household septic system, a private well, or both. For relocating and rightsizing buyers who are used to municipal utilities, that can be unfamiliar. It is also very manageable when you know what to check. This is general information, and your local health district and inspection professionals are the right sources for specifics.

How Do You Know If a Home Has Septic or a Well?

Start with the listing and the seller's disclosure. Ohio's Residential Property Disclosure Form, prescribed under Ohio Revised Code 5302.30, covers the property's water supply and sewer system, and it must explain where to get information on operating and maintaining a sewage treatment system. The form reflects the seller's actual knowledge and is not a warranty, so it does not replace inspections.

You can also ask your agent to confirm the utilities from county records and ask the seller for maintenance history, including pump-out dates and any repairs.

What Does Septic Oversight Look Like in Columbus?

Local health departments regulate these systems. According to Columbus Public Health, it permits and inspects household systems. Homes with mechanical treatment systems are inspected yearly, and homes with non-mechanical treatment components are inspected every five years. Inspections can also be requested after a complaint or during a real estate sale. The city also runs a Septic Tank Elimination Program that helps property owners connect to the city's sanitary sewer.

Rules and practices differ by county and health district, so ask the district that covers the property what records exist and what a pre-purchase inspection involves.

What Should a Septic Inspection Tell You?

As an example of how one Ohio health district describes it, Clermont County Public Health says buyers most often request its homeowner septic inspection before purchase, some lenders require one, and in other cases the buyer asks the seller for it. It notes that vacancy, season and household size can affect results, and that a passing result does not guarantee the system will keep working. It also advises checking the county's inspection database for past results, since recurring problems can be a warning sign.

That page does not carry a publication date and covers a different county, so use it as a general illustration and confirm local practice. The common-sense lessons apply anywhere: ask for the system's records, find out its age and type, and consider the inspection findings together with the home inspection, not instead of it.

How Should You Evaluate a Private Well?

Ohio State's watershed program advises having well water tested by a state-certified lab, and says the Ohio Department of Health suggests regular testing for total coliform bacteria, E. coli, nitrates and arsenic. Other tests depend on known problems or local concerns, and your local health district can advise.

Ohio sets health-based water quality standards for private water systems, though bacteria is the only enforceable standard. For total coliform, counts above 4 MPN call for cleaning and disinfecting the system, and if E. coli is detected, professional disinfection is recommended. Installing, altering or repairing a well requires a registered private water system contractor and a permit from your local health district.

What Else Should You Look For?

Several physical checks are worth making during your inspection:

• Whether the ground slopes away from the well and the cap and casing are intact.

• The distance between the well and any sewage system, fuel tank or area where fertilizers or pesticides are used.

• Whether the seller kept a well file with test results and records of work done.

• Signs of drainage problems or ponding water near either system.

How Do You Build This Into Your Offer?

Ask your agent to include the right inspections and testing within your due diligence period, and to confirm timing with the lab and the inspector so results arrive before the deadline. If a problem turns up, you have choices: negotiate repairs or a credit, ask the seller to correct it before closing, or walk away if the risk is too high. Get cost estimates from qualified contractors rather than guessing.

What Will Ownership Cost Over Time?

A septic system and well mean you are responsible for maintenance that a city utility would otherwise handle. Plan for periodic pump-outs, testing and eventual repairs or replacement, and ask for quotes so you know what a major repair would cost. Also ask about the possibility of a future sewer connection and any related assessments, since that can change your monthly costs.

Frequently Asked Questions

Does Ohio's seller disclosure form cover septic and wells?

Yes. The form prescribed under Ohio Revised Code 5302.30 covers the water supply and sewer system and says where to find information on maintaining sewage treatment systems. It reflects the seller's actual knowledge and is not a warranty.

Should I get a septic inspection before buying?

It is a sensible step for any home on a septic system. Practices vary by health district, so ask the local district what records and inspections are available. A passing result does not guarantee future performance.

What should I test for in private well water?

Ohio State's watershed program says the Ohio Department of Health suggests regular testing for total coliform bacteria, E. coli, nitrates and arsenic, using a state-certified lab.

Who can repair or install a well in Ohio?

Installing, altering or repairing a well requires a registered private water system contractor and a permit from your local health district.

Can a home on septic connect to city sewer later?

In some places, yes. Columbus runs a Septic Tank Elimination Program that helps owners connect to the sanitary sewer. Ask about any assessments or costs for the specific property.

If you are considering a home with a septic system or well, I would be glad to help you line up the right inspections, ask the right questions of the seller, and compare costs before you commit. No pressure, just a clear checklist.

This content is provided for informational purposes only and does not constitute legal or financial advice. All real estate services are provided in compliance with Fair Housing laws, RESPA, TCPA, the REALTOR® Code of Ethics, and Ohio Real Estate Commission advertising regulations. Equal Housing Opportunity. Chrisi Hagan, Collins Lassiter Group, Red 1 Realty.