Fleck Yellow, Tea-Colored Tannin Water Filter

Buy Now

View full details

What can government water data tell me about tannins in Cleveland County water?

The public water system serving much of Cleveland County, including Norman Utilities Authority, draws from surface water sources. According to the EPA’s Safe Drinking Water Information System (SDWIS) public record for system OK1020801, there is no federal monitoring data available for tannins in this water system. This means while some water quality data is collected, tannin concentrations have not been measured or reported at the system level. Consequently, the public water system record does not establish whether tannins are present or absent in your specific water supply.

It's important to understand that this absence of data is not evidence of safety or risk; it simply reflects the scope and requirements of regulatory monitoring. To determine if tannins are affecting your household water, individual water testing is necessary.

How do plumbing materials and age affect tannin-related water issues separately from source water?

Plumbing systems themselves can influence water appearance and quality independently of source water. In older homes or where certain plumbing materials are used, tannins may interact with pipes and fixtures, causing tea-colored stains or discoloration even if tannins in the source water are low. Corrosion or buildup in pipes can also exacerbate the visual effects caused by tannins.

Because your existing water treatment equipment has failed, these plumbing influences may become more noticeable. Understanding whether staining or color is due to tannins in the water or plumbing materials is an important step before selecting a treatment approach.

How do tannins differ from other common water discoloration issues like iron or manganese?

Tannins are naturally occurring organic compounds found primarily in surface water sources, often imparting a yellow to brown tea-like color. This differs from iron and manganese, which are metals that can cause rusty or black staining. Unlike iron or manganese, tannins do not respond to standard water softening or oxidation treatments designed for metals.

Recognizing the difference matters because the treatment methods vary. For tannin-related discoloration, specialized filtration is often required to remove the organic material causing the color.

How can I interpret the water system’s record to understand median and range values as a homeowner?

The Norman Utilities Authority water system serves over 104,000 people with surface water but does not report tannin levels. This means no median or range values exist for tannins in the system data. However, the system has recorded some health-based violations unrelated to tannins, and monitoring includes lead levels within plumbing distribution (lead 90th percentile at 0.00055 mg/L sampled in 2025). These figures are distinct from tannins and focus on plumbing-related metals.

For tannins, homeowners should not rely on system data to estimate their water condition but instead seek specific laboratory testing for the tannin content in their water supply.

What should a certified lab test for tannins include, and how do I understand the results?

A certified laboratory test for tannins will typically measure the concentration of these natural organic compounds using colorimetric methods or other accepted analytical techniques. The results will show tannin concentrations in milligrams per liter (mg/L), identifying if tannins are present at levels that might affect water color and stain surfaces.

Because tannins are aesthetic concerns rather than regulated contaminants, the lab report will guide you on whether the concentration is high enough to warrant treatment based on discoloration or staining rather than safety thresholds.

How should I compare Cleveland County’s water record with neighboring counties without overinterpreting?

When comparing water quality records between counties, keep in mind differences in water sources, monitoring requirements, and data availability. Cleveland County’s Norman Utilities Authority relies on surface water, which naturally carries tannins, while neighboring counties might use groundwater less prone to tannin coloration.

Such comparisons should avoid assuming identical water quality or treatment needs. The absence of tannin data in both counties does not confirm absence of tannins, only that monitoring has not been performed or reported.

Closing summary

The Norman Utilities Authority public water system record for Cleveland County provides information on source water type and some regulatory monitoring but does not include tannin measurements. To understand tannins in your household water, especially after your water treatment equipment has failed, individual water testing from a certified laboratory is needed. The Fleck Yellow Tea-Colored Tannin Water Filter ships ready to configure and offers a documented solution specifically designed to address tannin discoloration in residential water. For official water system data, refer to the EPA Safe Drinking Water Information System for system OK1020801.

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 NORMAN UTILITIES AUTHORITY (OK1020801), surface water supply, serving 104868 people: 2 health-based violations of 9 total; lead 90th percentile 0.00055 mg/L