Pentek Yellow, Tea-Colored Tannin Water Filter

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Government Sampling Records for Bentonville Water Utilities

Surface Water as the Source

The Bentonville Water Utilities system serves over 51,000 people with surface water as its source. According to EPA SDWIS records, no health-based violations are on file for this system, affirming compliance with federal safety standards.

Lead Levels in Distribution

Lead in tap water, measured at the 90th percentile for this utility, is very low at 0.001 mg/L, indicating effective lead management within the distribution network rather than source concerns.

Factors Affecting Your Water Profile

Relevance of Source Water Type for Tannins

Because surface waters often traverse natural organic environments like forests and wetlands, tannins can be present due to decomposing vegetation. This means tannin presence is more likely in surface water sources than in deep wells.

Sample Depth and Geographic Variability

Federal data do not include tannin measurements for Bentonville's system, so homeowner testing is necessary to confirm tannin presence and concentration in your household water.

Interpreting Limited Sample Data and Testing Needs

Sample Count and Geographic Scope

The EPA data reflects wide system testing focused on regulated contaminants but does not cover tannins specifically. This limited scope means you must rely on private or specialized testing to identify tannins at your tap.

Implications of Small Data Sets

Without direct tannin samples, any assumption about your water based solely on region or system data can be incomplete. Testing within your home and comparing results over time helps determine if your existing equipment meets tannin reduction needs.

Distinguishing Tannins from Similar Compounds

Difference From Iron and Manganese

Tannins create tea-colored water and can cause staining but do not behave like iron or manganese, which are minerals causing metallic taste or rust-colored stains.

Difference From Organic Contaminants

Tannins originate from natural organic matter and are different from synthetic organic chemicals or pathogens that require distinct treatment methods.

Information to Gather Before Seeking Treatment Advice

Testing for Tannin Concentration

Request water analysis that specifically measures color units or tannin concentration to verify the extent of tannin presence.

Monitoring Existing Equipment Performance

Note when your current system fails to maintain water clarity or causes staining, which signals insufficient tannin removal capacity.

Household Water Usage and Flow Rates

Record your household water demand to ensure treatment options suit volume needs without frequent service interruptions.

Water Quality Changes After Using the Pentek Yellow, Tea-Colored Tannin Water Filter

Improved Water Clarity and Appearance

After treatment, expect reduction in discoloration and staining associated with tannins, improving aesthetic water quality at the tap.

Maintaining Taste and Odor

Tannin filtration does not introduce chemicals; treated water maintains a clean taste without the tea-like coloring.

How the Pentek System Removes Tannins

Specialized Filtration Media

The Pentek filter uses media designed to capture and adsorb tannins effectively, preventing them from passing into your household water supply.

Capacity to Handle Moderate Tannin Loads

This system is engineered to handle typical tannin concentrations found in surface waters of this region, making it suitable for households experiencing capacity limits in existing equipment.

What You Should Not Conclude from Area Data Alone

No Direct Tannin Measurements From EPA Data

Because EPA records do not monitor tannins for Bentonville's system, presence and level in your home water cannot be assumed from area data.

System Compliance Does Not Guarantee Absence of Aesthetic Issues

Even with no health-based violations, tannins can cause discoloration or staining that affect water appearance and require separate treatment consideration.

Personal Testing Is Essential

Ultimately, only a direct test on your household water can confirm tannin concentrations and guide appropriate treatment decisions.

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 BENTONVILLE WATER UTILITIES (AR0000041), surface water supply, serving 51250 people: 0 health-based violations of 0 total; lead 90th percentile 0.001 mg/L