Well Water Testing Guide for Ohio
Where to test, what to test for, what it costs, and how Ohio's county health district system works.
Your County Health District Is Your First Call
Ohio is unique: 88 county health districts independently regulate private water systems. Your county health department is the primary authority for well construction, testing requirements, and water quality guidance in your area. They know the local geology, common contaminants, and approved labs.
Ohio doesn't have a single state-level private well testing program like some states. Instead, each county health district handles its own. This means testing availability, costs, and programs vary by county. Some counties offer periodic free or reduced-cost testing events; others don't.
Start by calling your county health district's environmental health division. They can tell you:
- What testing is recommended for your area
- Which labs are approved in your county
- Whether any free testing programs are currently available
- Local concerns specific to your well's location
Certified Testing Labs
Ohio EPA maintains a list of certified drinking water labs. Here are some that serve private well owners across the state:
- Ohio EPA Division of Environmental Services The state lab in Columbus. Provides testing services and can direct you to regional labs.
- Suburban Testing Labs 3302 Brecksville Rd, Richfield, OH 44286 · Serves northeastern Ohio. Full suite of well water tests.
- Alloway Environmental Testing Lima, OH. Serves western Ohio agricultural communities. Familiar with nitrate and agricultural contaminant testing.
- TestAmerica (Eurofins) Multiple Ohio locations. Large national lab with comprehensive testing capabilities including VOCs.
- Your county health district Many county health departments either operate their own lab or have preferred labs with discounted rates for residents. Always check locally first.
What Does Testing Cost?
| Test | Typical Cost | Notes |
|---|---|---|
| Coliform / E. coli bacteria | $25-$60 | Basic safety test. Should be done annually. |
| Nitrate | $15-$40 | Essential for agricultural areas. Annual. |
| Comprehensive panel | $100-$200 | Bacteria, nitrates, minerals, metals, pH, TDS. Good baseline. |
| VOC screen | $100-$250 | For wells near industrial or commercial sites. |
| Individual metals (lead, arsenic, etc.) | $25-$75 each | Add-on tests for specific concerns. |
What Should You Test For?
Ohio's recommended testing schedule for private well owners:
Every Year
- Bacteria (total coliform and E. coli)
- Nitrate — especially if near farmland. See our nitrate guide.
Baseline (At Least Once)
- Hardness — to properly size a water softener. See our hardness guide.
- Iron and manganese — for treatment sizing
- pH — affects corrosion and treatment effectiveness
- Total dissolved solids (TDS)
If You're in Specific Areas
| Area / Situation | Additional Tests |
|---|---|
| Near industrial sites (Kent, Ravenna, Akron corridor) | VOCs (trichloroethylene, other solvents) |
| Intensive agriculture (western OH, Amish Country) | Nitrates (annually), atrazine/pesticides |
| Older home with lead plumbing | Lead (first-draw sample) |
| Near coal mining (SE Ohio) | Sulfate, iron, manganese, pH (acid mine drainage) |
| Hydrogen sulfide smell | Hydrogen sulfide, sulfate-reducing bacteria |
Test Again If
- Your area has flooding
- You notice any change in taste, odor, or appearance
- Anyone has unexplained gastrointestinal illness
- Your well was recently repaired or had pump work
- You just purchased the property
- A new land use starts nearby (farming, construction, industry)
How to Collect a Sample
- Use the container provided by the lab (sterile for bacteria tests)
- For bacteria: remove the aerator, run cold water for 2-3 minutes before collecting
- For chemical tests: run water for 2-3 minutes to clear the plumbing, then fill
- Keep samples cool (not frozen) and deliver within 24 hours for bacteria
- Label each container with your name, address, date, time, and sample point
Sources
- Ohio EPA — Certified Drinking Water Laboratory List
- Ohio Department of Health — Private Water Systems Program
- Ohio State University Extension — Testing Your Well Water
- EPA — Protect Your Home's Water: Test Your Well