Choosing Treatment for Tannins in Lewiston, Androscoggin County Water

1. Rule Out Simple Causes and Confirm Need for Tannin Testing

This week, you face a choice about water treatment equipment designed to handle tannins, compounds often associated with tea-colored water. Since Lewiston's water system, managed by the Lewiston Water & Sewer Division, draws from surface water sources, the possibility of tannins is plausible due to natural organic materials that can color water. However, no federal or local monitoring data for tannins exists for this system or area, so your home's specific water quality requires testing to confirm tannins' presence and levels.

Begin by visually inspecting your water for tea-like color or staining on fixtures. If present, consider sending a sample to a certified laboratory for tannin analysis, specifying tests for natural organic compounds that cause color. Household test kits may offer preliminary insight but are less reliable than lab results.

2. Recognize Which Household Signs May Indicate Tannins

Tannins can impart a yellow to brown tint to your water, sometimes noticeable when filling clear containers or staining sinks and laundry. These effects are aesthetic and do not alone indicate health concerns. However, tannins can affect taste and react with disinfectants, potentially influencing water treatment efficacy.

Signs not typically caused by tannins include cloudy water, odors, or metallic taste, which generally have other sources such as sediment, chlorine, or metals. Distinguishing these symptoms helps target the right treatment approach.

3. Understand Maintenance Frequency for the Pentair System

The Pentair Yellow, Tea-Colored Tannin Water Filter is designed to reduce tannin color and related staining. This equipment ships ready to configure for your household's water demand. Maintenance mainly involves periodic media replacement or regeneration cycles to maintain filtration performance. Typical intervals depend on tannin levels identified in household testing and water usage but generally range from several months to a year. Regular monitoring ensures sustained effectiveness without guesswork.

4. Consequences of Long-Term Untreated Tannins

Leaving tannins untreated primarily affects water aesthetics and household systems. Discolored water can stain plumbing fixtures, appliances, and laundry. Over time, tannins may interfere with other water treatment processes or accumulate in pipes, reducing efficiency. While tannins are not classified as a health risk by EPA standards, consistently discolored water can diminish comfort and satisfaction with your water quality.

5. Interpreting 'Detected,' 'Median,' and 'Range' in Sampling Records

Lewiston's official water record shows one health-based EPA violation unrelated to tannins and lists water treatment codes. Importantly, no tannin-specific monitoring data is recorded for this system. Terms like 'detected' indicate laboratory measurement but do not mean exceedance of a limit or unsafe conditions. 'Median' and 'range' describe typical concentration values within a dataset when tannins are tested elsewhere but are absent here. Therefore, only direct household testing can clarify your own water’s tannin conditions.

Closing Statement

When your household's water testing confirms tannins and quantifies demand, the Pentair Yellow, Tea-Colored Tannin Water Filter offers an effective, ready-to-configure solution to reduce discoloration and staining common with tannin compounds. Choosing treatment that matches your measured tannin levels helps ensure reliable, improved water appearance and household comfort.

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 LEWISTON WATER & SEWER DIVISION (ME0090830), surface water supply, serving 23720 people: 1 health-based violations of 1 total; lead 90th percentile 0.0023 mg/L