Iron Bacteria in CT Aquifer 112DFSF: Understanding Local Water Data and Treatment Options

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How Treated Water Differs at the Tap After Using the C-Series System

Water drawn from wells in aquifer 112DFSF in Connecticut often contains varying iron levels measurable by modern instruments. While these iron amounts are generally below any federal action thresholds, the presence of iron bacteria can cause slime buildup, staining, and unpleasant tastes or odors in household water. The C-Series Iron Bacteria & Slime Filter ships ready to configure and offers targeted reduction of iron bacteria and associated byproducts, improving water clarity and quality at the tap. After treatment, homeowners typically notice reduced staining on fixtures and less slime accumulation, making daily water use more satisfactory without changes in routine plumbing.

How Sample Depth, Well Depth, or Source Type Changes What a Reader Should Expect

The USGS sampling for this area included wells between 10 and 80 feet deep, representing a typical depth range for residential groundwater sources in this aquifer. Iron concentrations detected at these depths varied widely, reflecting natural aquifer heterogeneity and differing biological activity levels affecting iron bacteria growth. Shallower wells may be more prone to iron bacteria-related issues due to interactions with surface organic matter, while deeper wells might show lower iron detections but can still harbor biofilms. Understanding well depth helps homeowners anticipate potential iron bacteria effects but does not replace a direct water test.

A Worked Example: Reading the Record's Median and Range as a Homeowner Would

The USGS record for aquifer 112DFSF shows 70 samples from 19 wells. Iron was detected in 21 samples, with a median iron concentration of 19.5 micrograms per liter and a range from 0.04 to 700.0 micrograms per liter. This means half the detected iron measurements are below 19.5 ug/L, and the highest detected value was 700.0 ug/L. Most samples were below detection limits, which do not imply absence but rather concentrations too low for the instruments used. This range illustrates variability homeowners may experience depending on their well and timing. The median helps identify a central tendency but does not dictate individual water quality.

What the Measured Range Means Against the Relevant Federal Standard, and What It Does Not Mean

None of the 70 samples in this dataset exceeded federal safety thresholds for iron, which are primarily aesthetic secondary standards related to taste, staining, and corrosion potential rather than health risks. Detecting iron or iron bacteria at these levels should not be interpreted as a violation or a health hazard. Instead, these measurements provide a reference for typical background iron in the aquifer. Homeowners should consider these figures in context and not assume their water matches these exact concentrations without testing.

What 'Detected', 'Median' and 'Range' Mean in the Sampling Record on This Page

• Detected: The instrument measured iron at or above the reporting limit in a sample; it does not indicate a violation or unsafe condition.
• Median: The middle value separating the higher half and lower half of detected iron concentrations; it summarizes typical levels found but is not a regulatory limit.
• Range: The spread from the lowest to the highest measured iron concentration in the sample set, showing variability across wells and times but not establishing individual well conditions.

What the Reader Should Write Down Before Asking Anyone for Treatment Advice

Before seeking treatment options, homeowners should record the depth of their well, the date and source of any recent water quality tests, and any observable symptoms such as staining or slime buildup. Most importantly, a certified laboratory analysis specifically measuring iron and iron bacteria presence in their own water supply is essential. Knowing these details allows for informed discussions about appropriate solutions.

Ordering a comprehensive lab test that quantifies iron concentration and identifies iron bacteria presence in your own water supply is the critical next step. This test will provide the clear data necessary to confirm if treatment with a system like the C-Series Iron Bacteria & Slime Filter addresses your household water concerns effectively.

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