What to Record Before Asking for Tannin Treatment Advice
Before discussing treatment options, document all water test results related to your household water. Since tannins are not monitored in the East St Louis municipal water supply as per EPA data, focus on test reports that include organic color measurements or specific tannin tests from an independent lab. Note your water source type, any visible coloration or staining, and any other water quality indicators such as total dissolved solids or pH. Keep a detailed record of when and where the tests were taken.
Comparing Seasonal and Multi-Year Variations in East St Louis Water Records
The East St Louis water system serves over 130,000 people using surface water as the source, filtered through a range of treatment steps. While specific tannin measurements are not available in the public system records, surface waters commonly experience seasonal changes in natural organic compounds including tannins, especially during leaf fall or runoff in autumn. These organic compounds fluctuate over time but the municipal records primarily reflect other treatment parameters for safety and taste.
A Worked Example: Interpreting Median and Range in Water Records
Although tannins are not directly measured, consider the lead 90th percentile value listed for this system: 0.003 mg/L, sampled in late 2025. This plumbing-related measure does not reflect source water tannin content but illustrates how to read data ranges from municipal records. If your own water test shows color or staining consistent with tannins, this local context informs your decision to seek treatment capable of handling organics typical in surface water.
Judging Treatment Capacity Against Household Daily Demand
Once the presence of tannins in your household water is confirmed, choosing an appropriate treatment capacity is crucial. The Pentek Yellow Tea-Colored Tannin Water Filter ships ready to configure and is designed to reduce tannin-related discoloration and staining for residential use. Consider your household’s daily water consumption to ensure the filter's capacity meets or exceeds your demand. Larger families or homes with higher water usage may require more frequent cartridge replacements to maintain effectiveness.
Differences Between Public System Records and Private Well Testing
Public water system data, like that of East St Louis, covers broad water quality trends and regulatory compliance but does not measure tannins. Private well testing, however, would include specific tannin analysis if requested, providing a direct measure of tannins in your water supply. Therefore, relying solely on municipal records cannot confirm or rule out tannins for your household. A private water sample sent to a lab with tannin testing is necessary for an accurate assessment.
The Single Test to Confirm Tannins and Inform Treatment Choice
To definitively determine if tannins affect your household water, order a laboratory test specifically measuring tannin concentration or total organic color. A confirmed presence of tannins, especially if causing tea-colored staining or discoloration, would justify using a treatment like the Pentek Yellow Tea-Colored Tannin Water Filter. Such a test result provides the basis for selecting the right treatment capacity and ensures you address this aesthetic concern effectively.
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 IL AMERICAN-EAST ST LOUIS (IL1635040), surface water supply, serving 131368 people: 1 health-based violations of 2 total; lead 90th percentile 0.003 mg/L
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