Iron in Connecticut well water
In Connecticut, iron was detected in 91% of 2,236 tested private well samples.
Iron is a nuisance rather than a health hazard: rust stains, metallic taste, and clogged fixtures above 300 ug/L. It often occurs with manganese and can feed iron bacteria that foul plumbing.
Check your iron 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 Connecticut well for iron
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
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Systems that remove iron
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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 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.
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 iron in Connecticut: certified labs, state programs and prices.
By county, from individual samples
Public monitoring samples against the EPA limit; counties with at least 30 samples.
| County | Above EPA limit | Samples | Detected | Median | Highest |
|---|---|---|---|---|---|
| Greater Bridgeport | no limit | 44 | 100% | 105 | 4,900 ug/L |
| South Central Connecticut | no limit | 151 | 98% | 64.9 | 4,300 ug/L |
| Lower Connecticut River Valley | no limit | 146 | 97% | 90 | 66,000 ug/L |
| Northwest Hills | no limit | 175 | 97% | 70 | 11,000 ug/L |
| Northeastern Connecticut | no limit | 186 | 96% | 60 | 7,600 ug/L |
| Western Connecticut | no limit | 222 | 96% | 95 | 65,000 ug/L |
| Capitol | no limit | 664 | 91% | 38 | 81,000 ug/L |
| Naugatuck Valley | no limit | 290 | 86% | 30 | 26,500 ug/L |
| Southeastern Connecticut | no limit | 358 | 83% | 50 | 31,000 ug/L |
- Wilton, Western Connecticut Planning Region100% detected of 64
- Farmington, Capitol Planning Region100% detected of 39
- Avon, Capitol Planning Region100% detected of 38
- Southington, Capitol Planning Region97% detected of 39
- Stonington, Southeastern Connecticut Planning Region97% detected of 31
- Simsbury, Capitol Planning Region95% detected of 41
- Granby, Capitol Planning Region92% detected of 38
- Newtown, Western Connecticut Planning Region87% detected of 30
- Woodbury, Naugatuck Valley Planning Region76% detected of 129
- Manchester, Capitol Planning Region70% detected of 146
- East Lyme, Southeastern Connecticut Planning Region48% detected of 105
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. iron counts and shares are listed on each county and town page with their sources.