Pentek Yellow, Tea-Colored Tannin Water Filter

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1. Number of Samples and Wells Behind the Tannin Figures

When you receive a laboratory report for tannins in water, it lists concentration values based on specific water samples. In the case of Scott County, KY, data from the Georgetown Municipal Water Service is available. This public water system serves over 44,000 people through more than 15,000 connections, relying on surface water sources.

However, it’s important to note that no federal or state monitoring data exists for tannins specifically in this water system. This means no government record quantifies tannin levels from individual water sources or wells here. Any reporting of tannin presence or amount would require testing of your own household supply. The existing data on the system’s water quality does not include tannins.

2. What Measured Range Means Against Federal Standards

Federal environmental agencies do not establish health-based standards or legal limits for tannins in drinking water. This is because tannins primarily impact water aesthetics, such as color and staining potential, rather than safety.

For Scott County’s municipal supply, EPA records show zero health-based violations. Lead concentrations, an unrelated measure, remain low and well within safety guidelines. The absence of tannin data indicates assessment falls outside regulated parameters, not a health risk per se.

Since tannin is not federally monitored in this system, laboratory results you might obtain from private testing reflect only your specific well or household, not the broader municipal system. Understanding the local context helps interpret these results appropriately.

3. Consequences of Leaving Tannins Untreated Over Time

When tannins are present in household water, they can cause several long-term issues without necessarily being harmful to health. These include:

• Tea-colored or yellowish tint that discolors water visibly
• Staining of sinks, tubs, and laundry fabrics
• A slight bitter or astringent taste that some notice
• Accumulation of organic residues that may support microbial growth in plumbing

These effects accumulate gradually. Addressing tannins can help maintain water clarity and protect surfaces without impacting water safety or regulatory compliance.

4. How Tannins Enter Water Sources in Scott County

Tannins originate from decaying vegetation and natural organic matter common in surface waters. Georgetown Municipal Water Service’s reliance on surface water means tannins can sometimes be present, especially during seasonal runoff or after heavy rainfall.

The surface water source captures organic compounds leached from surrounding forests and soil. These compounds dissolve into the water, causing the characteristic tea color if not removed during treatment.

Since the municipal system records no health-based violations, current treatment processes likely reduce tannin impact to acceptable levels. However, household-level variation can occur due to plumbing, storage, or specific water usage.

5. Reading the Median and Range as a Homeowner

Although no tannin data exist for the municipal system, you can consider the approach used for other constituents like lead. For example, the lead 90th percentile is recorded at 0.005 mg/L, indicating most samples measure below this level. This figure reflects distribution plumbing conditions, not the source water directly.

If you obtain a tannin test from a private lab, compare it to typical ranges reported for similar surface water sources rather than relying on municipal data. Identifying whether tannin levels cause visible staining or taste issues helps determine your need for a treatment device.

The Pentek Yellow, Tea-Colored Tannin Water Filter ships ready to configure and is designed to reduce tannins effectively in household water supplies where testing confirms their presence. It is a practical choice for homeowners managing tea-colored water concerns.

Closing

The Georgetown Municipal Water Service record covers extensive sampling of public water serving Scott County, KY, but excludes tannin monitoring. To assess tannins in your household supply, private testing is required. For more detailed municipal data, visit the EPA public water system records at https://data.epa.gov/efservice/WATER_SYSTEM/PWSID/KY1050157/JSON.

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 GEORGETOWN MUNICIPAL WATER SERVICE (KY1050157), surface water supply, serving 44608 people: 0 health-based violations of 4 total; lead 90th percentile 0.005 mg/L