How Public Water System Records Differ from Private-Well Testing in What They Establish
The public water system serving Berlin, Cheshire, Meriden, Southington, and Wallingford in New Haven County is the Meriden Water Division, which supplies surface water to over 58,000 people. This system’s records show treatment methods and general water quality indicators but do not provide data on microplastics, as no federal or state monitoring currently includes microplastics in their regular testing protocols for this public supply.
Unlike a private well test, which directly measures contaminants in your household’s water, public system records reflect the average quality of water before it reaches your home. These records cannot confirm if microplastics are or are not present in your tap water at your residence. To understand your individual water quality regarding microplastics, specific testing of your home’s water is necessary.
What 'Detected,' 'Median,' and 'Range' Mean in the Sampling Record on This Page
The Meriden Water Division’s public record includes terms like 'detected' for substances measured in the system, though microplastics data is absent. Generally, a 'detected' measurement means that a testing instrument found trace amounts, but this is not a health violation or safety concern on its own. The 'median' indicates the middle value of multiple samples taken over time, showing what is typical, while 'range' describes the span from the lowest to the highest values observed.
For microplastics, since no federal monitoring data exists for this system, none of these terms apply. Homeowners considering treatment should keep this distinction in mind to avoid conclusions based solely on available public system data.
What Distinguishes Microplastics from the Two Problems Most Often Confused with It
Microplastics are tiny plastic particles often arising from surface water sources like rivers and lakes, the very source type for this system. They differ from sediment or turbidity, which involves visible particles such as dirt or organic material. Microplastics cannot be seen by the naked eye and require specialized laboratory analysis to detect.
Additionally, microplastics do not behave like chemical contaminants that may cause taste or odor issues, which are often confused with their presence. Recognizing these differences is essential before choosing a treatment approach to address household water concerns.
The Household or Facility Symptoms That Do and Do Not Point to Microplastics
Signs like cloudy water or sediment buildup generally point to traditional particulate issues, not microplastics. Because microplastics are microscopic, they rarely cause visible or taste alterations detectable without laboratory testing.
If you observe staining, unusual taste, or odor, these symptoms are likely related to other water quality factors tracked by public water system reports. Microplastics usually require scientific testing to confirm their presence and impact.
The Order in Which to Rule Things Out, from Cheapest Check to Laboratory Test
- Begin by reviewing your water supply’s recent public quality reports for known issues unrelated to microplastics.
- Check household plumbing and filters for sediment and particulate accumulation that may cause visible effects.
- If concerns persist, arrange for specialized laboratory testing of your water sample specifically for microplastics to obtain definitive results.
Once testing confirms the presence of microplastics, treatment options can be considered with confidence. The Fleck Microplastics Filter ships ready to configure and is designed to reduce microscopic plastic particles effectively in residential water supplies.
Ordering a microplastics-specific water analysis from a certified laboratory is the single most important step to settle whether microplastics treatment is necessary for your home.
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 MERIDEN WATER DIVISION (CT0800011), surface water supply, serving 58441 people: 2 health-based violations of 14 total; lead 90th percentile 0 mg/L