What the Measured Range Means Against Federal Standards, and What It Does Not Mean
Tannins are organic compounds that can give water a yellow to brown tint. Unlike substances with federal limits, tannins are not routinely monitored or regulated as a contaminant by the EPA in public water systems. Peoria's municipal system, IL AMERICAN-PEORIA, sources water from surface water but does not have data on tannin concentrations reported in EPA records. This absence means tannins do not appear in compliance or violation reports and no federal health-based standard applies.
It is important to understand that the absence of tannin data in public records is not evidence that tannins are present or absent in any individual home. Rather, it reflects that federal testing does not require measurement of these compounds for this system. Tannins predominantly affect water appearance rather than health and are considered an aesthetic issue.
A Worked Example: Reading the Record's Median and Range as a Homeowner Would
The publicly available data for Peoria’s water system includes measurements for some parameters but excludes tannin levels. For example, the reported 90th percentile lead measure of 0.009 mg/L is a plumbing distribution point statistic, unrelated to tannins. Without tannin data, a homeowner cannot rely on these municipal system figures to estimate tannin presence or concentration.
For household water quality concerns about tannins, the practical step is targeted home testing through specialized water analysis that quantifies tannin levels specifically. A typical test involves sending a water sample to a certified laboratory that can measure tannins. This informs whether treatment is necessary and which type of treatment fits the household’s water characteristics.
How the Treated Water Differs at the Tap Once the Documented Technology Is in Place
The C-Series Yellow, Tea-Colored Tannin Water Filter addresses tannins by using a specialized filtration process designed to remove tea-colored organic compounds that cause discoloration. When configured with this system, treated water at the tap appears clearer, reducing yellow or brown tint that tannins can impart and improving overall aesthetic quality.
This technology works without relying on chemical additives and is designed to be compatible with household water systems. It allows consumers to manage tannin-related discoloration based on their own testing results, providing clearer water without altering municipal supply standards.
How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means
The publicly accessible data on Peoria’s public water system covers over 55,000 connections serving about 137,575 people, representing a broad sample of the region’s surface water supply and distribution infrastructure. However, there are no federal tannin measurements reported for this system or any related federal dataset, highlighting that the system does not routinely monitor tannins at source or distribution points.
Small or no sample sizes for tannins mean that homeowners or water users should not assume the presence or absence of tannins from municipal records alone. Testing individual household water is necessary to understand local conditions, as tannin levels can vary widely based on well depth, surface water runoff, and local environmental factors.
What Questions a Commercial or Industrial Operator Adds That a Household Does Not
Commercial and industrial users often require more frequent and comprehensive water quality data, including tannins, as these can affect processing equipment, product quality, and regulatory compliance for discharge. They may need larger volume filtration or integrated treatment systems tailored to tannin concentration variations over time.
Households typically focus on visible water clarity and taste, making the question of tannins a matter of practical nuisance and home aesthetics rather than regulatory thresholds. Commercial users must consider additional factors such as continuous monitoring, process integration, and cost-efficiency in treatment solutions.
For residential water users in Peoria weighing options to manage tannins, the C-Series Yellow, Tea-Colored Tannin Water Filter offers a ready-to-configure solution. It helps households respond directly to the tannin levels identified by their own lab testing, improving water appearance at the tap without reliance on municipal data for tannins.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2026-06-30. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for IL AMERICAN-PEORIA (IL1435030), surface water supply, serving 137575 people: 2 health-based violations of 2 total; lead 90th percentile 0.009 mg/L