What "detected", "median", and "range" mean in the sampling record on this page
In the Jonesboro Water System, which serves parts of Craighead, Greene, and Poinsett Counties, chlorine is used as a disinfectant in groundwater-supplied water. The EPA's public water system record shows chlorine levels were measured but does not classify any readings as violations. "Detected" means chlorine was present when samples were taken—it is not a measure of safety or problem by itself. The "median" is the middle value of all samples, indicating what a typical measurement might be. The "range" shows the variability from the lowest to highest chlorine levels detected over multiple samples. These terms help understand system-wide findings but do not reflect conditions at any one household.
How many samples and wells stand behind the figures, and what a small sample means
The data for the Jonesboro Water System compiles measurements from groundwater sources providing water to over 81,000 people across 36,403 connections. Multiple wells contribute to this system’s supply, but individual sample counts or specific well details are not disclosed here. Smaller sample sizes can limit the ability to capture full variability in water quality, so the data should be seen as a regional snapshot rather than a definitive test of any single home’s water. For personal clarity, testing the water at the tap is necessary.
How to judge treatment capacity against the household's or facility's daily demand
When considering treatment options for chlorine taste or odor removal, it is important to evaluate how much water the household uses daily. Treatment systems like the C-Series Chlorine Taste & Smell Filter are designed to handle typical residential flow rates and capacities. Ensuring the chosen technology matches the volume and frequency of water use prevents overwhelming the system and maintains effective chlorine reduction. The system ships ready to configure for point-of-entry connection without the need for specialized labor.
The order in which to rule things out, from cheapest check to laboratory test
Start by checking simple factors before exploring complex treatment solutions. Confirm if the perceived chlorine taste or smell is consistent and matches times when disinfectant use is higher, such as during certain times of day or after system maintenance. Next, test water at the tap with a home test kit before considering professional laboratory analysis for precise chlorine concentration. This helps avoid unnecessary equipment and ensures that any treatment matches actual water quality needs.
Why aesthetic secondary standards differ from health-based limits, applied to this constituent
The EPA treats chlorine taste and odor under aesthetic secondary standards, which aim to improve consumer satisfaction rather than enforce health safety rules. For the Jonesboro Water System, no health-based violations related to chlorine have been recorded, confirming disinfection meets safety guidelines. Exceeding aesthetic thresholds does not indicate unsafe water but may prompt interest in treatment to enhance taste and smell. Understanding this distinction helps set realistic expectations when addressing chlorine concerns.
What the reader should write down before asking anyone for treatment advice
Before seeking treatment recommendations, record the following:
- Whether water is supplied by the Jonesboro Water System.
- Details about water taste or odor issues, including when they occur and how noticeable they are.
- Any prior water quality tests, including home kit results for chlorine.
- Daily water usage patterns and household size.
- Whether the water is sourced from groundwater or another type.
Having this information ready ensures any advice or equipment suggestion fits the specific water conditions and household needs.
In summary, the EPA's public water system record for the Jonesboro Water System serving Craighead, Greene, and Poinsett Counties shows groundwater-sourced water contains detectable chlorine under non-health-based aesthetic standards with no violations. This data covers many connections and samples but does not substitute for individual well or tap testing. For detailed data and updates, consult the EPA’s public water system records directly.
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 JONESBORO WATER SYSTEM (AR0000124), groundwater supply, serving 81888 people: 0 health-based violations of 2 total; lead 90th percentile 0.001 mg/L

