Tannins in York County Water: Understanding Concerns for Kittery Residents
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WSP Whole House Tannin Filter - Yellow Tea-Colored
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The Kittery Water District in York County, ME, serves over 14,000 people using surface water as the source. Water from surface sources, such as rivers and lakes, can sometimes carry natural organic materials including tannins. These compounds are known for causing yellow or tea-colored tints in water, which may prompt questions about water quality in homes.
How Do Public Water System Records Differ from Private Well Testing in What They Establish?
The Kittery Water District maintains a public water system record reporting no health-based violations according to EPA standards. These records reflect water quality as tested at the system level before it reaches households, not specific residential taps. However, there is no federally collected monitoring data for tannins in this system. Private wells, in contrast, can have highly variable tannin levels depending on local groundwater conditions, so only direct testing of a well’s water can confirm tannin presence in a home.
What Is the Recommended Order to Identify Whether Tannins Are Affecting Your Household Water?
Begin with a simple visual check for yellow or brown coloration in cold water from a faucet that is directly connected to the source, such as a kitchen or laundry tap. If discoloration is noticeable, consider sending a water sample to a certified laboratory for specific tannin analysis. This confirms whether tannins are present and at what levels. Evaluating the water in this way rules out other causes of discoloration that might originate within household plumbing instead.
How Many Samples and Wells Are Represented in the Kittery Water District Data, and What Does That Mean for Tannin Assessment?
The system serves 5791 connections corresponding to thousands of households, with source water drawn from surface supplies. EPA records capture broad water quality parameters across this entire system rather than individual points. Since no tannin monitoring data exists for this public system, there is no collective sampling basis to conclude tannin presence or absence broadly. Therefore, home-specific testing is essential for personal water quality decisions.
How Can You Judge Treatment Capacity Against a Household’s Daily Water Demand for Managing Tannins?
Any filtration approach to address tannins should match the household’s daily water use to maintain consistent water clarity. C-Series Yellow, Tea-Colored Tannin Water Filter units ship ready to configure for residential demands typical of Kittery homes. Sizing filters to average consumption ensures effective tannin removal without frequent maintenance or service interruptions.
Which Household Fixtures, Appliances, or Processes Are Affected First by Tannins and Why?
Tannins are primarily visible in cold water taps and can discolor laundry during washing, leading to yellow or brown staining. Fixtures that use untreated water like ice makers or humidifiers may also show signs of tannin presence. Hot water tends to extract less color, so discoloration is usually less apparent there. Treating water before contact with these points helps maintain appearance and reduce staining risks.
In summary, Kittery residents relying on municipal surface water should recognize that public water records show no health-based concerns, though tannins might occur naturally in the source waters. Identifying tannins requires home-specific testing and visual inspection. When tannins are confirmed, a C-Series Yellow, Tea-Colored Tannin Water Filter offers a documented solution tailored to typical household water needs.
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 KITTERY WATER DISTRICT (ME0090790), surface water supply, serving 14478 people: 0 health-based violations of 9 total; lead 90th percentile 0.002 mg/L