Copper in Ohio well water
In Ohio, <1% of 2,477 tested private well samples exceeded the EPA limit for copper (1.3 mg/L).
Copper leaches from pipes when water is acidic. Above 1.3 mg/L it causes stomach upset, and long-term exposure can harm the liver and kidneys. Blue-green stains on fixtures are the giveaway.
Check your copper number
Type the value from your lab report. It is compared to the EPA limit, the same way the full interpretation does it.
Test your Ohio well for copper
Certified lab analysis of your own tap water, bottles and prepaid return shipping included. The Essential well panel covers arsenic, uranium, nitrate, lead, copper, manganese, iron, sodium and bacteria; radon and PFAS are add-ons.
Order the Tap Score well water test kit, from $209Already tested? Upload the report
Affiliate links: the merchant pays us a commission and the price is the same for you. It does not change what the data above says.
Systems that remove copper
Some links below are affiliate links. If you buy through one, the merchant pays us a commission at no extra cost to you. It does not change which products we list or what the data says.
Some links below are affiliate links. If you buy through one, the merchant pays us a commission at no extra cost to you. It does not change which products we list or what the data says.
For copper
Under-sink reverse osmosis system
under-sink or countertop, about $300
Look for NSF/ANSI 58 certification listing the contaminant you need removed.
For copper
Acid neutralizing filter
whole-house, at the point of entry, about $1,200
Raises pH so plumbing stops leaching lead and copper.
Rather have it installed and sized for your well? Book a free in-home water test with a licensed local company.
Where to get a well tested for copper in Ohio: certified labs, state programs and prices.
By county, from individual samples
Public monitoring samples against the EPA limit (1.3 mg/L); counties with at least 30 samples.
| County | Above EPA limit | Samples | Detected | Median | Highest |
|---|---|---|---|---|---|
| Coshocton | 115 | 80% | 0 | 4.6 mg/L | |
| Montgomery | 128 | 82% | 0.003 | 1.4 mg/L | |
| Shelby | 44 | 77% | 0.001 | 0.012 mg/L | |
| Hamilton | 89 | 75% | 0.001 | 0.03 mg/L | |
| Muskingum | 97 | 74% | 0 | 1.1 mg/L | |
| Jefferson | 77 | 74% | 0 | 0.05 mg/L | |
| Preble | 50 | 74% | 0.001 | 0.128 mg/L | |
| Butler | 113 | 67% | 0.001 | 0.02 mg/L | |
| Miami | 80 | 66% | 0.001 | 0.03 mg/L | |
| Geauga | 34 | 65% | 0 | 0.22 mg/L | |
| Clark | 73 | 44% | 0 | 0.026 mg/L | |
| Champaign | 72 | 36% | 0 | 0.036 mg/L | |
| Wood | 45 | 36% | 0 | 0.011 mg/L | |
| Greene | 73 | 34% | 0 | 0.57 mg/L | |
| Darke | 30 | 33% | 0 | 0.013 mg/L |
- Linton township, Coshocton County2% of 55
- Miami township, Montgomery County2% of 66
- Hamilton, Butler County0% of 47
- Colerain township, Hamilton County0% of 54
- Mount Pleasant township, Jefferson County0% of 70
- Meigs township, Muskingum County0% of 81
- White Eyes township, Coshocton County0% of 52
- Concord township, Miami County0% of 56
- Spring Valley township, Greene County0% of 42
- Jackson township, Franklin County0% of 34
- Columbus, Franklin County0% of 251
- Franklin township, Tuscarawas County0% of 88
- Hamilton township, Franklin County0% of 73
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. copper counts and shares are listed on each county and town page with their sources.