The official water quality record for Knoxville’s public system, FIRST U.D. OF KNOX COUNTY (TN0000369), serving over 115,000 residents, reports zero health-based violations and confirms the water source as surface water.
Interpreting 'Detected', 'Median', and 'Range' in Knoxville’s Water Data
The absence of specific tannin data in government records means no federal or state agency has established a quantified measure for tannins in this public supply. 'Detected' typically signals that a compound was measured by an instrument, but here no tannins have been measured or reported. 'Median' and 'Range' statistics, often summarizing concentration distributions, are unavailable for tannins in this system. This underscores that any household’s tannin presence must be established by independent water testing.
Questions Beyond a Household’s Scope: Commercial and Industrial Considerations
Unlike residential settings, commercial or industrial operators inquire about tannin concentrations to assess large-scale impacts on process equipment, product quality, or compliance with industrial permits. They often require extensive sampling regimes, ongoing monitoring, and must consider water treatment resilience under heavy daily usage. Households generally prioritize practical impacts such as discoloration or taste and adjust equipment accordingly.
Distinguishing Aesthetic Secondary Standards from Health Limits for Tannins
Tannins are naturally occurring organic compounds that can impart a yellow or tea color to water. While they may affect appearance and taste, tannins are not regulated as health hazards in Knoxville’s public water system, which shows no EPA health-based violations. Aesthetic secondary standards guide treatment decisions focused on improving water appearance, preventing staining, and enhancing consumer satisfaction, not on mitigating health risks.
How Larger Households or Seasonal Properties Influence Treatment Needs
Residences with greater water use may find existing tannin removal systems reaching capacity faster, requiring upgrades or more frequent maintenance. Seasonal homes might face prolonged equipment inactivity, affecting filter media performance over time. Assessing usage patterns helps determine whether the treatment approach matches household demand, maintaining water quality and system longevity.
Pathways for Tannins to Enter Water Supplies in Knox County
Tannins commonly originate from decaying vegetation in surface water sources, consistent with Knoxville’s water supply. These organic compounds dissolve during rainfall and runoff, resulting in their presence in lakes, rivers, or reservoirs before treatment. Municipal treatment plants address many aesthetic factors, but residual tannins can persist, warranting point-of-entry solutions for households sensitive to discoloration.
To verify tannin levels in your home water, certified laboratory testing specifically targeting organic color-causing compounds is necessary. Knowing these values allows informed decisions on treatment methods like the Fleck Yellow, Tea-Colored Tannin Water Filter, which ships ready to configure and is designed to target tannins effectively where existing equipment is insufficient.
This briefing summarizes the official public water system record for FIRST U.D. OF KNOX COUNTY (TN0000369), focusing on water quality insights available for Knox County residents. For detailed data, visit the EPA source at data.epa.gov.
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 FIRST U.D. OF KNOX COUNTY (TN0000369), surface water supply, serving 115531 people: 0 health-based violations of 3 total; lead 90th percentile 0.001 mg/L
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