Ohio Department of Agriculture Consumer Protection Laboratory
- Coliform Bacteria
About 6,455 households in Pickaway County, 28% of the county, rely on a private well. Nobody tests that water unless the owner does.
About one in 4 households in Pickaway County relies on a private well, around 6,455 homes. Outside the towns with public water, wells are the norm here.
The rules that apply in Pickaway County are set at the state level in Ohio. New wells must be tested before use, and nothing is required at sale. Some counties and townships add permits or setbacks of their own, so check locally before drilling. The state's own recommendations are below.
Under OAC 3701-28 a permit from the local health district is required before a well is drilled or altered. When the work is done, the owner asks the health district for the final inspection, and a sanitarian collects the water sample: total coliform, E. coli and nitrate. The system is approved only when the sample passes (4 or fewer total coliform per 100 mL and no E. coli for a well without continuous disinfection).
No statewide requirement. Most local health districts offer a real-estate evaluation of the well on request (a visual inspection plus a bacteria and nitrate sample), and some lenders ask for one. Ask the county health district for its fee and turnaround.
ODH recommends a total coliform and nitrate test every year, and every time the water changes in taste, color or smell, after flooding, or after any work on the well or pump. Add arsenic, iron and manganese, hardness and sulfate at least once, and PFAS or methane where local conditions call for it.
No statewide free program. Several county health districts run their own labs (Erie, Logan, Mahoning, Canton City among them) and sell bacteria and nitrate tests at cost; others sell bottles from a certified lab. OSU Extension fact sheet AEX-315 lists labs that accept samples from homeowners.
The nearest certified lab is Ohio Department of Agriculture Consumer Protection Laboratory in Reynoldsburg, about 24 miles from the county center. There are 3 more within 40 miles, listed below with what each tests for.
4 certified labs within 40 miles
Licensed help in Pickaway County includes Bapst, Inc and Darby Creek Excavating Inc and 5 others. Every listing was matched to the Ohio license list; the "verify" link on each profile opens the state lookup.
7 licensed contractors
License 9999-PWSC-26-000003 Active
License 9999-PWSC-26-000208 Active
License 9999-PWSC-26-000362 Active
License 9999-PWSC-26-000274 Active
License 9999-PWSC-25-000103 Active
License 9999-PWSC-26-000177 Active
License 9999-PWSC-26-000367 Active
Well depth and water chemistry in Pickaway County follow the rock underneath it. Typical wells here run 50 to 200 ft in glacial sand and gravel; 100 to 400 ft in bedrock in the east and south. Contaminants worth testing for in this part of Ohio include coliform bacteria, nitrate (northwest and central farm counties), arsenic (glacial aquifers in northwest and central ohio), iron.
Varies by location. Check the state well record search for logs of nearby wells.
Neighboring counties: Fairfield County, Ross County, Franklin County, Fayette County.
National ranges from published 2025 to 2026 contractor pricing. Local quotes vary with depth, access and materials.
About 6,455, or 28% of households, based on Census housing data and state well surveys. The share is highest outside the towns with public water.
Ohio Department of Agriculture Consumer Protection Laboratory in Reynoldsburg, about 24 miles away. Call first to ask whether they accept homeowner samples.
Under OAC 3701-28 a permit from the local health district is required before a well is drilled or altered. When the work is done, the owner asks the health district for the final inspection, and a sanitarian collects the water sample: total coliform, E. coli and nitrate. The system is approved only when the sample passes (4 or fewer total coliform per 100 mL and no E. coli for a well without continuous disinfection).
A bacteria and nitrate test runs $25 to $75 at most certified labs; a full panel with metals is $150 to $400. Mail-in kits cost about the same as walking in.