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Health problems are rare in tested Glynn County wells.

All 5 health checks came back rare here.

From 117 wells tested in Glynn County since 2001; your own well needs its own test. How to read this

Tested wells over the limit GlynnGeorgia
Nitrate2%2 of 106Manganese0%0 of 24Lead0%0 of 24Fluoride0%0 of 20Uranium0%0 of 20
GermsTest every year, whatever the chart says
Coliform bacteria0%0 of 3E. coli0%0 of 3
StainsNot a health risk
Iron stains12%3 of 24

Not charted, because fewer than 10 wells were tested: arsenic (7), radon (3).

Rare: under 5%Worth checking: 5 to 15%Widespread: 15%+

Lab results: Water Quality Portal (USGS and EPA)

Who drinks from a well here

1 in 4 people 21,735 people

Nobody else tests these wells. Only you do.

People on wells: EPA researchers' 2020 estimate

Radon risk (a gas from rock)

Less likely, but the EPA still says test your air.

Radon zones: EPA map

Here's how Glynn County compares with Georgia and the counties around it.

Each result puts Glynn County next to the 4 counties that border it, on the chart's 0 to 50% scale.

All 5 health checks are rare in Glynn County.

Nitrate2 of 106 wells over

2 of 106 wells tested here from 2001 to 2019 were over the EPA limit of 10 mg/L, against about 1 in 18 across Georgia. That's a smaller share than in 7 of the 13 other Georgia counties with 10 or more tested wells.

Glynn and its neighbors
Glynn2%
Camden0%

Too few tested to show: Brantley, McIntosh, Wayne.

Nitrate guide

Manganese0 of 24 wells over

None of the 24 wells tested here from 2005 to 2019 were over the EPA health advisory of 0.3 mg/L, against about 1 in 33 across Georgia. Glynn County had none, while 1 of the 10 other Georgia counties with 10 or more tested wells had at least one, leaving out 1 county whose results are likely overstated.

Glynn and its neighbors
Camden8%
Glynn0%

Too few tested to show: Brantley, McIntosh, Wayne.

Manganese guide

Lead0 of 24 wells over

None of the 24 wells tested here from 2005 to 2019 were over the EPA action level of 15 µg/L, against under 1 in 100 across Georgia. Glynn County had none, while 1 of the 7 other Georgia counties with 10 or more tested wells had at least one.

Glynn and its neighbors
Camden0%
Glynn0%

Too few tested to show: Brantley, McIntosh, Wayne.

Lead guide

Fluoride0 of 20 wells over

None of the 20 wells tested here from 2005 to 2019 were over the EPA limit of 4 mg/L, against under 1 in 100 across Georgia. Half the results were under 0.57 mg/L. Glynn County had none, while 1 of the 12 other Georgia counties with 10 or more tested wells had at least one.

Glynn and its neighbors
Camden0%
Glynn0%

Too few tested to show: Brantley, McIntosh, Wayne.

Uranium0 of 20 wells over

None of the 20 wells tested here from 2005 to 2019 were over the EPA limit of 30 µg/L, against none across Georgia.

Uranium guide

Too few Glynn County wells were tested for these 2.

Arsenic7 wells tested

Only 7 wells here were tested from 2017 to 2019, too few to say how common it is. Across Georgia it's about 1 in 47.

Arsenic guide

Radon in water3 wells tested

Only 3 wells here were tested in 2019, too few to say how common it is. Across Georgia it's about 1 in 19.

Radon guide

None of the 3 Glynn County wells tested for bacteria had it, but every well needs a yearly test.

Coliform bacteria0 of 3 wells had it

None of the 3 wells tested here in 2019 had coliform bacteria, against about 4 in 10 across Georgia.

Bacteria guide

E. coli0 of 3 wells had it

None of the 3 wells tested here in 2019 had E. coli, against about 1 in 12 across Georgia.

E. coli means human or animal waste is getting in, so if a test of your Glynn County well finds it, boil drinking water until the well is fixed.

Bacteria guide

Iron reached staining levels in 3 of 24 tested wells, and it isn't a health risk.

Iron stains3 of 24 wells had it

3 of 24 wells tested here from 2005 to 2019 had enough iron to stain (0.3 mg/L), against about 2 in 10 across Georgia.

Glynn and its neighbors
Camden50%
Glynn12%

Too few tested to show: Brantley, McIntosh, Wayne.

Iron guide

Most of the 117 wells tested in Glynn County were last tested before 2010.

103 wells had a test in the 2000s and 23 in the 2010s.

An old result shows the water as it was then, so treat these 117 wells as a starting point and test your own.

Most Glynn County wells in these records were tested for research or because someone suspected a problem, which can push the shares above what a typical home well would show (how we read the numbers).

One mail-in lab test covers the 3 things to check in Glynn County.

  • Bacteria
  • Nitrate
  • Arsenic

What Georgia offers well owners

Here's what we know about radon and PFAS in Glynn County.

Glynn County is in the EPA's lowest radon zone, so radon from well water is unlikely to be a problem. Radon guide

Between 2023 and 2025 the EPA had 2 town water systems in Glynn County test for PFAS. None found any. No well in Glynn County has public PFAS results, so the town systems are the best clue to what's in the groundwater nearby. PFAS guide

Radon zones: EPA Map of Radon Zones. PFAS: EPA tests of town water systems, 2023 to 2025

Next door to Glynn County
Camden
Elsewhere in Georgia
ColumbiaChathamWorth

All of Georgia

Get a yearly reminder to test your Glynn County well

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Questions people ask about well water in Glynn County

Is well water in Glynn County safe to drink?

Most tested wells in Glynn County came in under the limits. Of 5 health checks with enough tests, nitrate came closest, at 2 of 106 wells over. Every well is different, so test yours for bacteria, nitrate and arsenic.

Where can I get my well tested in Glynn County?

Use a lab Georgia has certified for drinking water. Georgia's list is linked above, in the box about testing. Ask for bacteria, nitrate and arsenic, the tests that matter most in Glynn County.

How does Glynn County compare with the counties around it?

For nitrate, the share of tested wells over the limit: Camden, the one neighbor with data, came in lower than Glynn County, at 0% against 2%. Groundwater doesn't stop at county lines, so Camden's 0% is worth knowing about if you live near it.

How often should I test my well in Glynn County?

None of the 3 wells tested for bacteria in Glynn County had it, but the CDC still says to test for bacteria and nitrate every year, and right away after a flood, a repair, or any change in taste or smell.

By the Tested Water teamData from the USGS, EPA and University of Georgia Cooperative Extension (labs certified by Environmental Protection Division)Updated November 8, 2026

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Where the Glynn County numbers come from

  • People on wells: 21,735 in Glynn County, from EPA estimates built on the 2020 Census (Murray et al.).
  • Lab tests: 438 well water samples from 117 wells in the Water Quality Portal, run by the USGS and EPA, 2001 to 2019.
  • Neighboring counties: the 4 counties that share a border with Glynn County, from the Census Bureau's county adjacency file.
  • PFAS: EPA tests of 2 town water systems in Glynn County under the Fifth Unregulated Contaminant Monitoring Rule, 2023 to 2025.
  • Radon: Glynn County is zone 3 on the EPA Map of Radon Zones.
  • State programs and links: University of Georgia Cooperative Extension (labs certified by Environmental Protection Division), checked November 1, 2026.
Download this county's data (CSV)How we read these numbersReport an error
Test for bacteria and nitrate every yearSee lab tests