Pentek Yellow, Tea-Colored Tannin Water Filter

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Observing Water Color and Taste Changes in Sacramento

Residents in Sacramento County relying on the SCWA - LAGUNA/VINEYARD surface water supply may notice tea-colored water or subtle taste shifts at fixtures. These changes can fluctuate across seasons, reflecting natural organic materials like tannins in surface water sources.

Seasonal and Multi-Year Variation in Water Quality Records

Surface Water as a Source of Organic Material

Surface water supplies tend to collect organic matter from surrounding vegetation and soils, especially during rainy seasons or runoff events, causing tannin levels to vary over time.

Absence of Direct Tannin Monitoring

The EPA public water system records for Sacramento’s SCWA system do not include tannin measurements. Therefore, variations in tannin-like discoloration are inferred from the source type rather than explicit data.

Reading Water Records as a Sacramento Homeowner

Focus on Source and Treatment Codes

The SCWA system serving 184,896 people with surface water uses several treatment processes registered under EPA codes, indicating steps to address typical surface water issues. Without direct tannin data, understanding treatment effectiveness relies on knowing these processes.

Considering Lead and Health Metrics

Lead in plumbing samples is reported with a 90th percentile of 0 mg/L, highlighting no detected plumbing lead concerns. This does not relate to tannins but helps contextualize water safety within the system.

Comparing Sacramento with Neighboring Counties’ Water Records

Similar Source Types May Show Similar Issues

Neighboring counties with surface water sources can experience comparable organic material variability, including tannins. However, direct comparison requires checking each system's monitoring specifics and treatment approaches.

Avoid Overinterpreting Absence of Specific Data

If neighboring areas lack tannin data, it does not prove absence of tannins. Likewise, detected organic color does not confirm unsafe levels or mandate the same treatment choices.

Symptoms That Do and Do Not Indicate Tannin Presence

Signs That May Point to Tannins

• Tea or amber coloring in tap water
• Natural, earthy taste changes not explained by other sources
• Staining on fixtures consistent with organic material

Signs Unrelated to Tannins

• Metallic tastes or odors (may suggest other contaminants)
• Cloudiness or sediment unrelated to organic staining
• Water hardness or scaling from minerals

Understanding Sampling Terms: Detected, Median, and Range

Detected Means Measured, Not a Violation

Detection simply means the substance was found by an instrument in the sampled water. It does not indicate a safety or compliance issue.

Median and Range Describe Data Distribution

Median gives the middle value in a data set, while range shows the lowest to highest measurements, illustrating variability but not necessarily a problem.

System Data Does Not Substitute Individual Testing

Homeowners should test their own water to determine tannin levels, since system-wide records do not provide household-specific concentrations.

Choosing Equipment to Address Tannin Concerns

When tannins are identified as a household concern based on testing and appearance, selecting the right filtration is key. The Pentek Yellow, Tea-Colored Tannin Water Filter ships ready to configure for residential use and is specifically designed to reduce tannin-induced discoloration and taste effects. Measuring your water’s tannin demand will guide proper product use and ensure effective treatment.

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 SCWA - LAGUNA/VINEYARD (CA3410029), surface water supply, serving 184896 people: 1 health-based violations of 2 total; lead 90th percentile 0 mg/L