What 'Detected', 'Median', and 'Range' Mean in the Sampling Record on This Page
When reviewing public water system records like those for Farmington's water supply, terms such as 'detected', 'median', and 'range' describe the measured presence and distribution of various water constituents within the system's samples. 'Detected' indicates that a substance was measured in at least one sample, but does not imply a health concern or legal violation by itself. The 'median' is the middle value of all sample results, presenting a typical concentration observed among the samples. The 'range' shows the lowest and highest measured amounts across all samples in the dataset. Understanding these terms helps set expectations about water quality without assuming they reflect an individual household’s water condition.
How Constituents Enter Groundwater or the Distribution System in This Region
Farmington’s public water system sources its supply from groundwater. Various substances can enter groundwater naturally through soil and rock interactions or from human activities such as land use and infrastructure presence. Once drawn into the distribution system, plumbing materials and processes can also influence constituent levels. For example, the lead 90th percentile in Farmington reflects plumbing factors affecting water after it leaves the source rather than the original groundwater quality. Recognizing the pathways of these substances helps residents understand possible changes from source water to tap water.
How Public-System Records Differ from Private-Well Testing in What They Establish
Public water system records provide information on water quality at a community scale, reflecting aggregated data across numerous sampling points and homes in Farmington. These records do not specify individual household water conditions. In contrast, private well testing evaluates water quality at a specific location and plumbing, providing a direct measure of that home's water. Homeowners relying on public system data should consider it as a regional indicator rather than a personalized report. For precise evaluation, testing the water within the home is necessary.
How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means
The figures reported for Farmington’s water system derive from multiple samples and monitoring locations as part of routine compliance and surveillance by the water provider and regulatory agencies. However, the exact number of samples and specific well contributions are not detailed in this summary. A small sample size or limited sampling frequency can result in less comprehensive data, leaving some variability undetected. Understanding that sample coverage shapes the confidence in water quality assessments encourages homeowners to seek individual testing if their water demands precise knowledge.
How the Documented Treatment Technology Removes or Neutralizes the Constituent
For households exploring treatment options in Farmington, the Autotrol Safe Drinking Water Filter presents a technology designed to address contaminants present in the local water supply. This system operates by filtering water to reduce or neutralize targeted substances, including metals and other constituents that can affect taste, appearance, or safety indicators as identified by regulatory records. It ships ready to configure for home use, offering a user-controlled approach to enhancing water quality at the point of use.
Selecting this type of equipment allows residents to manage their drinking water beyond community-level treatment, tailoring purification to individual household needs.
The Single Test That Clarifies Your Drinking Water Situation
The most definitive way for Farmington households to confirm their drinking water quality is to conduct a comprehensive water test from their own tap. This test should include analyses for constituents relevant to the local water system and plumbing materials, such as lead and other metals. A result below regulatory health-based thresholds can help settle concerns regarding safety and guide decisions on whether additional treatment like the Autotrol Safe Drinking Water Filter is appropriate. Testing ensures that any treatment chosen addresses the actual water conditions of the household rather than relying solely on regional data.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2024-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for FARMINGTON PWS (MO4010270), groundwater supply, serving 18217 people: 39 health-based violations of 46 total; lead 90th percentile 0.00482 mg/L
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