What 'Detected', 'Median', and 'Range' Mean in the Sampling Record
In the water quality records for AQUARION-EASTERN FAIRFIELD COUNTY, bacteria presence is reported through sampling results that include terms like 'detected,' 'median,' and 'range.' A 'detected' finding means the sampling instruments registered bacteria in a sample from the public water system. It does not mean a violation or health risk by itself. The 'median' indicates the middle value of all samples measured, giving a sense of commonality but not the highest or lowest extremes. The 'range' shows the spread between the lowest and highest values detected, offering insight into variability over time and locations within the system.
How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means
The recorded bacteria data comes from numerous water samples collected across the public system's service area, which covers many towns in Fairfield County and serves over 350,000 people. However, each sampling event may involve a limited number of sites, which affects the statistical strength of the conclusions. A small sample size may not capture all the fluctuations in bacterial presence within the system. Therefore, while the data offers a regional snapshot, individual household water conditions can vary and require their own testing for precise assessment.
How Public-System Records Differ from Private-Well Testing in What They Establish
The public water system's bacteria data reflect water quality before it reaches individual homes through a network of pipes and treatment facilities. It does not measure specific household plumbing or well water conditions. For homeowners with private wells, bacterial testing involves sampling water from the well or tap and often different testing protocols. The public system record cannot substitute for private well testing. To understand the bacterial status of a particular home's water, a homeowner must obtain a laboratory analysis of their own water sample.
Maintenance Rhythm of the Documented Technology in Plain Terms
The Fleck Bacteria & Coliform Filter ships ready to configure and is designed for residential water treatment. Its maintenance typically involves periodic replacement of filter media or cartridges, a process dictated by the filter's usage and bacterial load in the water. Regular monitoring of water quality and adherence to recommended maintenance intervals ensure sustained performance. This rhythm typically translates to scheduled service actions spaced over months, facilitating effective bacterial control without complex operational demands.
How the Documented Treatment Technology Removes or Neutralizes the Constituent
The Fleck System uses specialized filtration media to physically remove bacteria and coliform organisms from water. It traps and holds bacteria within the filter, preventing them from reaching taps. This method is a mechanical barrier rather than chemical disinfection. It effectively reduces bacterial presence, thereby lowering the chance of bacteria-related water issues in the household. Because it is a single-unit system designed for residential use, it directly addresses bacterial concerns reflected by regional data.
A Worked Example: Reading the Record's Median and Range as a Homeowner Would
Suppose the public record notes bacteria detection with a median near the lower end of the range, indicating that while bacteria are sometimes detected, their levels are generally low within the distribution system. A homeowner might interpret this as a sign that bacterial contamination events are intermittent or localized. Since one detection does not confirm ongoing presence or an unsafe condition, the homeowner should seek specific water testing for their own residence. Based on their results, they can then consider whether the Fleck Bacteria & Coliform Filter is an appropriate response.
What the Reader Should NOT Conclude from Area Data
Area-wide sampling data should not be taken as a definitive statement about any individual home's water quality. Detection of bacteria in public system samples does not mean the water is unsafe at the tap or that health-based standards are exceeded. Likewise, a single health-based violation in the system's record does not represent multiple problems or constant risk. Homeowners must obtain private water testing to understand their own water condition precisely. Finally, the presence of bacteria detected in some samples does not guarantee bacterial contamination is present continuously or across all locations.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2026-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for AQUARION-EASTERN FAIRFIELD COUNTY (CT0150011), surface water supply, serving 351756 people: 1 health-based violations of 202 total; lead 90th percentile 0 mg/L
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