What should you consider when evaluating the need for total well water treatment in CT? Government sampling data from the FIPS 180 area aquifer 112DFSF offers useful regional context, showing a range of iron concentrations that may affect household water quality in various ways.
Interpreting Iron Levels in Regional Groundwater
Median iron concentration in local wells
The U.S. Geological Survey sampled 19 wells ranging from 10 to 80 feet deep in FIPS 180, aquifer 112DFSF, between 2015 and 2025. The median iron level across 70 results was 19.5 micrograms per liter (ug/L), with individual readings ranging from 0.04 to 700 ug/L. These figures represent a wide variation but reflect area-wide observations rather than individual wells.
Prevalence of iron detection
Iron was detected in 21 out of 70 samples, while the other 49 were below the reporting limit. The presence of iron in some regional wells indicates it is a naturally occurring constituent to consider in treatment planning.
Changes in Tap Water Quality After Treatment
Reduction of iron-related issues
When the Fleck Total Well Chlorination System is deployed in a household setting, it functions to address common iron effects that may affect water clarity, taste, or staining potential. This system's grain capacity of 32,000 supports sustained treatment performance over time.
Improved appearance and usability
Treated water is typically clearer and less likely to cause staining on fixtures or laundry, enhancing the overall quality and user experience at the tap.
Long-Term Effects of Untreated Iron in Well Water
Potential for gradual staining
If iron-rich water remains untreated over years, it can lead to buildup and staining on plumbing fixtures, appliances, and laundry, which can gradually affect convenience and aesthetics.
Impact on household water use
Untreated iron can also result in minor clogging or reduction in water flow rates due to mineral deposits, potentially increasing maintenance needs.
Understanding Certified Laboratory Water Tests
What a certified test reports
A certified laboratory test for iron in your well water will provide a concentration value usually expressed in micrograms per liter (ug/L) or milligrams per liter (mg/L). This precise figure indicates your specific water condition, which can differ from regional sampling data.
How to interpret results
Compare your test result with area benchmarks and consult treatment specifications. It is important to remember that the presence of iron alone is not a health violation, but an aesthetic concern that can be managed effectively.
Sources of Iron in CT Groundwater
Natural aquifer composition
In the FIPS 180 region, iron is naturally present in the aquifer materials and can dissolve into groundwater as it moves through soil and rock layers.
Well depth influence
Wells in this area range from shallow (10 feet) to deeper (80 feet), with iron levels varying accordingly. Depth and local geology play roles in iron concentration in groundwater.
What Regional Data Does Not Reveal
The government sampling data reflects iron conditions across many wells in FIPS 180 but does not determine the iron concentration in your specific well. Only a certified laboratory test of your own water can provide that information. Additionally, no sample from this data set exceeded federal thresholds, which means that iron detections in the area are not violations or health risks but factors for treatment consideration.
The Fleck Total Well Chlorination System ships ready to configure for household use and can help address water quality issues indicated by these regional measurements and personal testing results.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2025-11-21. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.
On record: U.S. Geological Survey sampling of Iron in the 112DFSF aquifer (FIPS 180): 70 results from 19 wells, median 19.5 ug/L, range 0.04-700.0 ug/L; none above any federal threshold
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