Well water in Concord township, Ohio

In Concord township, 3% of 40 tested well samples exceeded the EPA limit for nitrate (10 mg/L), based on public data from USGS Water Quality Portal.

The strongest signal is lead: 4% of 23 local samples were above the limit, too few samples to carry the headline but first on the test list below.

2,898 test results across 9 contaminants from at least 42 wells, 1990 to 1999; chloride has the most at 1,394. Data refreshed September 3, 2026.

Compiled by Nick at Well Water Nerd from public records. How these pages are built

What individual samples found

Each row summarizes every public sample for that contaminant inside Concord township. Above limit means above the EPA maximum contaminant level; where EPA has no enforceable limit, the row shows a health guideline or nuisance level instead.

Contaminant	Above limit	Samples	Detected	Median	Highest	Limit
Lead 1991 to 1999	4%	23	4%	0	20	15 ug/L EPA limit
Nitrate 1991 to 1999	3%	40	75%	0.485	15	10 mg/L EPA limit
Fluoride 1990 to 1999	0%	57	93%	0.2	0.41	4 mg/L EPA limit
Copper 1991 to 1999	0%	23	0%	0	0	1.3 mg/L EPA limit
Arsenic 1991 to 1996	0%	13	23%	0	2	10 ug/L EPA limit
Chloride 1990 to 1999	no limit	1,394	100%	38	150	250 mg/L nuisance level
Sodium 1990 to 1999	no limit	1,302	100%	20	120	20 mg/L health guideline
Iron 1991 to 1999	no limit	23	96%	84	945	300 ug/L nuisance level
Manganese 1991 to 1999	no limit	23	100%	124	1,200	300 ug/L health guideline

Closer than the town

See the sampled wells near your address

The same records, drawn around one point: which wells within a few miles were sampled and what they found, how deep the wells next to you were drilled, and any leaking tank or cleanup site within a mile.

Check my address

What this means

The contaminants most often above their limit here are lead (4% of 23 samples) and nitrate (3% of 40 samples). A well next door can differ sharply from yours because bedrock fractures, well depth and plumbing all matter, so these rates describe the area, not your tap.

Chloride, Iron, and Manganese are widespread in local groundwater. They are mainly a staining and taste problem, but high manganese also carries a health advisory for infants.

What to test for in Concord township

1
Lead
4% of 23 local samples were above the limit.
2
Nitrate
3% of 40 local samples were above the limit.
3
Coliform bacteria
Recommended for every private well, every year.
4
Chloride
Detected in 100% of local samples.
5
Manganese
Detected in 100% of local samples.
6
Iron
Detected in 96% of local samples.
7
Fluoride
Detected in 93% of local samples.

Test your Concord township well for lead, nitrate and coliform bacteria

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 $209 Already tested? Upload the report

Just want bacteria checked first? Tap Score coliform and E. coli test, $99. Coliform and E. coli are the tests every well needs every year.

Want a quick look before paying for a lab? Home well water test strips on Amazon check hardness, iron, pH and nitrate in minutes. They are a screen, not a result: arsenic, bacteria, uranium and PFAS need a certified lab.

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. As an Amazon Associate we earn from qualifying purchases.

Where to get a well tested in Ohio: certified labs, state programs and prices.

Already have results back? Get your lab report read against the Concord township numbers, $29. Every line explained, ranked by what matters, with the fix for each.

Wells in Concord township

335 domestic wells in Concord township are on record with the state since 1970. 11% are drilled into bedrock, and the typical well is 82 feet deep (one in ten goes past 213 feet).

In a typical Concord township well, bedrock starts about 214 feet down, the median yield is 15 gallons per minute, <1% of wells yield under 3 gallons per minute and usually need a storage tank.

1970s

1980s

1990s

2000s

2010s

2020s

Find your own well's report

The state keeps the driller's report for most wells drilled since 1984. It tells you how deep your well is, where bedrock starts, and how much water it makes, which decides what treatment can work.

Open ODNR water well log search and choose Water Well.
The log lists depth, depth to bedrock, casing, static water level, the pump test and the driller.

Ohio has required well logs since 1948, so most drilled wells have one.

The rock under Concord township

Silurian-Devonian aquifers

Carbonate-rock. Limestone and dolomite move water through cracks and solution channels, sometimes very fast. Bacteria and nitrate can travel from the surface to a well in days, so annual bacteria testing matters more here than most places; hardness is a given.

Classification from the USGS Principal Aquifers of the United States (national map, 2003 edition, GIS release 2015), read at the town centroid. A single well can sit in a different unit, especially near a boundary.

Official help in Ohio

Two places to start that are not selling anything: the state program that answers private well questions, and its list of labs certified to run drinking water tests. A certified lab is the difference between a result you can act on and a number.

Private Water Systems Program, Ohio Department of Health
Laboratory Certification, Ohio EPA

Treatment that fits the local profile

Lead

Point-of-use reverse osmosis; Certified lead-removal carbon filter; Neutralizing filter to raise pH and stop leaching

Nitrate

Point-of-use reverse osmosis; Anion exchange; Distillation

Manganese

Oxidizing filter (greensand, birm) whole-house; Water softener (low levels); Point-of-use reverse osmosis

Iron

Oxidizing filter whole-house; Water softener (low levels); Aeration plus filtration

Systems we would look at first

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 lead

Under-sink reverse osmosis system

under-sink or countertop, about $300

Look for NSF/ANSI 58 certification listing the contaminant you need removed.

For lead

Acid neutralizing filter

whole-house, at the point of entry, about $1,200

Raises pH so plumbing stops leaching lead and copper.

For lead

Aquasana SmartFlow reverse osmosis

under-sink or countertop, about $225

Certified to NSF/ANSI 58 and 53 to reduce arsenic (96%, pentavalent), fluoride (90%), lead (99%), nitrate, nitrite and PFOA/PFOS at the kitchen tap, with a remineralizer.

For iron

Iron and manganese oxidizing filter

whole-house, at the point of entry, about $1,800

Air-injection or greensand media; fixes staining at the source.

Free, no obligation

Get on the list for a free in-home water test in Concord township

No water treatment company serves Concord township through Well Water Nerd yet. We are signing licensed companies on county by county: they test at your tap for free, walk you through the numbers, and quote treatment only if something needs fixing. Leave your details and you are first in line. Nothing is shared until a company joins for Concord township, and you get an email naming it first.

Common questions

How deep are wells in Concord township?

The typical domestic well in Concord township is 82 feet deep, based on 335 wells reported to the state since 1970. One in ten is deeper than 213 feet. 11% are drilled into bedrock.

Is there arsenic in well water in Concord township?

Arsenic was detected in 23% of 13 public well samples in Concord township, and 0% were above the EPA limit of 10 ug/L. Arsenic has no taste or smell; a lab test is the only way to know your level.

How often should I test a private well in Concord township?

Test for bacteria and nitrate every year. Test once for arsenic, uranium, radon, fluoride, manganese and PFAS, then again every three to five years or after any change in taste, color, or plumbing.

Towns near Concord township

Closest first. Groundwater does not stop at a line on a map, so the next town over is a fair second opinion.

Want the numbers themselves? Download the Ohio dataset as CSV, every county and town, with the sources named.

Sources

USGS Water Quality Portal: 2,898 samples in Concord township. Data from the Water Quality Portal, a service of USGS, EPA and USDA; groundwater samples collected by USGS and cooperators. Retrieved September 3, 2026.
Ohio DNR water well logs: 377 well records in Concord township, 335 domestic. Water well logs filed with the Ohio Department of Natural Resources Division of Water Resources since 1948. Only aggregates are shown; owner names and addresses are never stored. Retrieved September 17, 2026.

Non-detects count as samples and are treated as zero when computing medians. Exactly at the limit counts as not above it. A sample belongs to the town containing the well's reported coordinates.