Fleck Yellow, Tea-Colored Tannin Water Filter

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Public Water System Records vs. Private Well Testing: What They Mean for You

The EPA's public water system records for Lewiston City, which serves over 15,000 residents including those in Nez Perce County, provide information measured at the system level but do not offer specifics on your individual home's water quality. These records reflect water drawn from surface supplies and treated by municipal processes, but they do not include measurements of tannins. In contrast, testing water from a private well or your home's tap directly is necessary to understand what is specifically present in your water supply.

Understanding Aesthetic Secondary Standards Compared to Health-Based Limits for Tannins

Tannins are naturally occurring organic substances common in surface waters that can impart a yellow or tea-like coloration to water. Although tannins affect the appearance and taste of water, they are not regulated under health-based standards by the EPA, which means their presence does not indicate a safety concern. Secondary standards focus on water aesthetics such as color and staining, which tannins influence, and these standards guide treatment decisions based on user comfort rather than health risk.

Reading Certified Laboratory Tests for Tannins

If you decide to test your home water for tannins, a certified laboratory can provide a report showing tannin concentrations typically in milligrams per liter (mg/L). Understanding these results involves comparing the tannin levels to recommended guidelines for aesthetic quality; higher tannin levels explain discoloration or taste issues. Keep in mind that tannin detection indicates presence and concentration but not harm, and treatment suitability depends on the degree of coloration or staining you observe.

Important Information to Note Before Seeking Treatment Advice

Before exploring water treatment options for tannins, record key details including your tannin concentration from lab tests, visual or taste observations in your water, and any existing treatment equipment you might have. Also note the water source type—surface water in this case—and any treatment processes the public system applies to your area. This information helps in selecting appropriate home water treatment tailored to your specific needs.

How to Interpret System Data: A Homeowner’s Perspective

Although Lewiston City's water system record does not include tannin measurements, the surface water source suggests tannins may be present since surface waters often carry organic materials responsible for yellow or tea coloration. This absence of tannin data means individual testing is necessary to confirm if tannins affect your water. Understanding this context helps homeowners prioritize testing and treatment based on their water's appearance.

Comparing Nez Perce’s Water Profile with Neighboring Counties

When comparing Nez Perce County’s water system information with nearby regions, consider that surface water sources commonly have tannins, while groundwater sources may not. Differences in treatment processes also influence water quality outcomes. Avoid assuming that tannin levels or water appearance in another county apply directly to your home, as local source water and treatment vary widely.

For households facing tannin-related water coloration or mild staining, selecting a treatment solution that addresses organic colorants is important. The Fleck Yellow, Tea-Colored Tannin Water Filter ships ready to configure and is documented to reduce tannins effectively when matched to your water’s tannin concentration. Testing your water first and noting your specific tannin levels will guide how this system can meet your household’s 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 LEWISTON CITY OF (ID2350014), surface water supply, serving 15001 people: 0 health-based violations of 42 total; lead 90th percentile 0.001 mg/L