Interpreting Sampling Terms: Detected, Median, and Range in Water Records
In public water records like those for the Brunswick County Water System serving Leland, terms such as 'detected', 'median', and 'range' refer to statistical summaries of water sampling results across the system. A 'detected' measurement indicates the presence of a constituent somewhere in the sampled network, but not necessarily in every home or tap. The 'median' represents the middle value of measurements collected, and the 'range' shows the span from the lowest to the highest values recorded. These summaries help frame the overall water quality but do not describe any single household’s water specifics.
Long-Term Effects of Untreated Tannin Presence
Tannins, organic compounds common in surface water sources, can accumulate over time in household water. Unlike substances that pose direct health risks, untreated tannins primarily affect aesthetics and household maintenance. Over years, tannins may cause tea-colored or yellowish tinting of water, staining fixtures, and leaving residues on glassware and laundry. While not harmful in a health sense, these effects can be inconvenient and diminish satisfaction with home water quality.
Distinguishing Tannins from Other Commonly Confused Constituents
Tannins can be mistaken for iron or manganese staining, as all may discolor water or surfaces. However, iron and manganese have distinct metallic tastes and may cause rust-like deposits, whereas tannins originate from decayed vegetation and produce a tea-like color without metallic flavor. Iron and manganese usually require different treatment approaches focused on oxidation and filtration, while tannin treatment targets organic color removal.
Pathways for Tannins Entering the Water Supply in Brunswick County
The Brunswick County Water System draws from surface water sources, which naturally contain varying levels of tannins due to decomposing plant material in local rivers, lakes, and reservoirs. These organic compounds dissolve into the water, particularly in areas surrounded by wetlands or forested land. While federal datasets do not include tannin monitoring for this system, surface water origin is a key indicator that tannins may be present in varying degrees.
Water Quality Changes at the Tap After Using the Pentair Yellow, Tea-Colored Tannin Water Filter
When water passes through the Pentair Yellow, Tea-Colored Tannin Water Filter, tannins are reduced through specialized filtration media designed to adsorb these organic compounds. The result is clearer water with significantly diminished tea-coloration. This improvement enhances the appearance of water from the tap, reduces staining on fixtures and fabrics, and generally elevates user satisfaction without altering the water’s safety profile.
For households in Leland with measurable tannin-related concerns, the Pentair Yellow, Tea-Colored Tannin Water Filter ships ready to configure for residential demand levels identified through proper water testing. This technology is a proven solution for addressing tannin-related aesthetic issues characteristic of surface water supplies like Brunswick County’s.
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 BRUNSWICK COUNTY WATER SYSTEM (NC0410045), surface water supply, serving 151357 people: 3 health-based violations of 14 total; lead 90th percentile 0 mg/L
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