Understanding Tannins in York County Water and Choosing the Right Treatment

The public water system serving Kennebunk, Kennebunkport, and Wells in York County obtains its supply from surface waters and has no recorded EPA health-based violations. While this confirms compliance with safety standards, tannins are not regularly monitored in this system, so understanding their possible presence requires additional steps.

1. What the Absence of Tannin Data in Government Records Means

The EPA system record for this region does not include tannin measurements. This absence does not imply either the presence or absence of tannins in household water. Instead, tannins are naturally occurring organic compounds common in surface waters, especially those influenced by decaying vegetation or peat-rich soil. Their presence is typically an aesthetic concern rather than a health risk.

2. Reading Surface Water Supply Data as a Homeowner

Because the water system relies on surface water sources, it is more likely to contain tannins compared to groundwater-based supplies. Homeowners noticing tea-colored stains or a slightly bitter taste in their water may infer tannins as a cause, but confirmation requires testing their own water specifically for tannins, which is separate from regulated EPA testing for contaminants.

3. Influence of Water Source and Depth on Tannin Expectations

Surface water draws are exposed to organic material and seasonal changes, leading to variability in tannin levels. Shallow wells or systems directly connected to surface supplies can show higher tannin concentrations. Thus, households on surface water systems like this should consider tannin testing if they observe characteristic discoloration or odors.

4. Understanding Seasonal and Multi-Year Variations in Tannin Appearance

Tannins in surface water fluctuate seasonally, often increasing in autumn when falling leaves decompose, or during periods of heavy rainfall that carry organic matter into water bodies. Since the EPA record for this system shows no tannin monitoring, this variability is not documented, making direct observation and home testing even more important.

5. Clarifying Key Terms in Water Sampling Records

The terms “detected,” “median,” and “range” describe measurement results in regulated testing but are not available for tannins here. For example, “detected” means an instrument measured tannins above the test’s detection limit, but for this system, no such data exists. Median and range values would summarize concentrations if measured. Homeowners interested in tannins must conduct specific tests that report these metrics to evaluate their water.

In summary, the government water system record for Kennebunk, Kennebunkport, and Wells covers health-based contaminants and shows no violations but does not track tannins. To determine tannin levels in your household water, specialized testing is required. For managing tannin concerns, the Autotrol Yellow Tea-Colored Tannin Water Filter is designed to address discoloration and related aesthetic issues common with tannins in surface water supplies. This system ships ready to configure and can be considered once testing confirms tannin presence.

The information here is based on the EPA SDWIS public water system record for ME0090760, covering approximately 35,663 residents through 14,265 connections in York County. For further details, consulting the official government source is recommended.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2023-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA SDWIS record for KENNEBUNK, KENNEBUNKPORT & WELLS WD (ME0090760), surface water supply, serving 35663 people: 0 health-based violations of 9 total; lead 90th percentile 0.001 mg/L