This week’s decision involves choosing how to address tannin-related water concerns at home, given your previous equipment has stopped performing effectively.
Source Type and Expected Tannin Presence
Surface water as a tannin source
The Conway Water System serving Faulkner County draws from surface water sources. Surface waters often contain natural organic materials like tannins, which can impart a tea-colored tint. However, federal data collected for this system does not include tannin concentration measurements. Therefore, their presence or level in your home’s water cannot be assumed based on this record alone.
Influence of source depth and treatment
Tannins originate primarily from decaying vegetation in water bodies near the surface. Depth of source or well may reduce tannins naturally. The Conway system utilizes numerous treatment processes (codes 125, 220, and others) designed to address various water quality issues; however, tannins are not specifically measured or noted in their public record.
Changes in Treated Water at the Tap After Using the Pentair System
Effect on tannin coloration and staining
Using the Pentair Yellow, Tea-Colored Tannin Water Filter directly purchased for home use changes water at the tap by reducing tannin-related coloration and potential staining. This technology targets tannins effectively, helping restore clearer water appearance once configured and integrated into existing plumbing.
Impact on taste and odor
Tannins can sometimes contribute to slight taste or odor changes. This Pentair system helps improve sensory qualities by filtering tannins and associated natural organics, enhancing overall water acceptability.
Sample Size, Wells, and Interpretive Limits of Data
Number of system connections sampled
The Conway Water System serves 64,008 people across 28,969 water connections. While lead sampling is detailed, no tannins data exist in federal monitoring datasets for this system or area.
Implications of limited tannin data
The absence of tannin sampling means homeowners should conduct private testing to know their home water’s tannin levels. Relying solely on public records cannot reveal tannin status at an individual residence.
Understanding Aesthetic Secondary Standards Versus Health-Based Limits
Tannins as an aesthetic concern
Tannins affect water appearance and can stain plumbing fixtures or laundry but are not regulated by health-based limits under EPA rules. The Conway system reports zero health-based violations, consistent with federal oversight.
Why tannin presence is not a safety violation
The EPA does not classify tannin detections as violations or safety issues. Instead, tannins fall under aesthetic considerations related to taste, odor, and coloring.
Seasonal and Multi-Year Variation in Water Records
Absence of tannin-specific monitoring dates
No federal tannin monitoring data exist for Conway Water System, so seasonal or year-to-year changes in tannin levels are undocumented in public records.
General seasonal tendencies in surface water tannins
Surface water tannin content typically fluctuates seasonally with vegetation cycles, rainfall, and organic decay rates, suggesting potential variability in household experiences despite stable municipal records.
In summary, publicly available Conway Water System data affirm no health-based water violations but lack specific tannin measures. Homeowners facing tannin issues should test water privately and consider the Pentair Yellow, Tea-Colored Tannin Water Filter for reliable tannin reduction at the tap after prior treatment failures.
This checklist clarified tannin expectations based on surface water supply, treatment impacts, data limitations, aesthetic standards, and seasonal variation to help guide your next steps.
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 CONWAY WATER SYSTEM (AR0000189), surface water supply, serving 64008 people: 0 health-based violations of 0 total; lead 90th percentile 0.001 mg/L
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