What does 'detected', 'median', and 'range' mean in the City of Forney water sampling record?
The EPA's public water system record for the City of Forney in Kaufman County lists several measurements used to describe the system's treated water quality sampled at distribution points. The term 'detected' means that the measuring instrument found a constituent at some level in at least one sample across the system, but it does not imply a violation or unsafe condition. The 'median' or 90th percentile is a statistical measure indicating the middle or higher-end concentration found in the tested samples from the distribution system. The 'range' shows the lowest and highest measured values during the sampling period. These figures summarize the system’s general water characteristics, not any specific homeowner's water quality at the tap.
What does the measured range for the City of Forney water mean compared to federal standards, and what does it not mean?
The City of Forney's system has two health-based violations noted out of a total of sixteen recorded issues, as per EPA data. These violations relate to federal health standards for drinking water safety. However, the presence of any detected substance within the measured range, or even those listed with aesthetic or secondary standards, does not mean your home water exceeds safety limits or is harmful. The EPA's standards are complex, and only confirmed violations indicate failure to meet health criteria. Therefore, while the system's record shows some health-based violations, the presence of various measured constituents within range alone should not be interpreted as your home's water being unsafe without direct testing.
What does a laboratory test report for your home's water actually list, and how should you read it?
A certified laboratory test for your household water will report precise concentrations of specific constituents detected in your well or tap water. Such a report will typically include numerical values along with detection limits and reference health standards for each substance. Unlike EPA system-wide data, this test reflects only your water's condition at the sampling point. Reading your test report carefully means identifying which substances exceed health-based limits, which are within recommended guidelines, and which are simply detected without health concern. Understanding this helps you make informed decisions about any needed treatment measures tailored to your water's actual profile.
What should you write down before asking for advice on water treatment sizing?
Before seeking guidance on sizing a home water treatment system, document key details including:
- The results and dates of any certified water test reports you have for your home.
- The source type (city surface water, well, etc.) supplying your home.
- The number of people in your household and average daily water usage.
- Any known water quality issues such as staining, taste, or cloudiness.
- The City of Forney water system's EPA public record details, if relevant, as context.
These data points help align treatment system sizing with actual household needs and the water's characteristics.
What additional questions do commercial or industrial operators ask that a household does not?
While household water treatment sizing focuses mainly on daily water use and basic water quality, commercial or industrial users consider additional factors such as peak flow rates, process water requirements, regulatory compliance for effluent, and potential scale or corrosion control needs across different equipment. These concerns often require more detailed water quality profiles and larger, more complex treatment systems. For residential purposes, these questions are usually unnecessary but understanding them helps clarify the scope of household water treatment.
What should you NOT conclude from EPA area data alone?
The EPA's City of Forney water system data provide important insight into the general water quality delivered to Kaufman County residents but do not reveal any single home's water condition. You should not conclude that the presence or levels of constituents in the system record apply directly to your tap water. Likewise, detecting a substance or even a listed violation on the system record does not automatically mean your water is unsafe or that you must take immediate action. The only way to understand your home's water quality precisely is through a certified laboratory test of a sample collected at your actual water point. Only then can you determine the appropriate capacity and type of treatment that meets your household's water needs.
When sizing your home water treatment system, such as the Fleck City Whole-Home Protection System with a 32,000-grain capacity, use your specific water profile combined with general area data as a guide. This approach ensures a balanced, effective treatment solution designed for your household's actual water characteristics and consumption.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for CITY OF FORNEY (TX1290002), surface water supply, serving 29692 people: 2 health-based violations of 16 total; lead 90th percentile 0.00167 mg/L