The Louisville Water Company serves over 800,000 people in Jefferson County, KY, drawing from surface water sources and maintaining a record free of health-based violations. While government data does not include tannin testing, residents may notice tea-colored staining or other effects typically linked with tannins found in surface water. This page helps you decide what to check and how the Pentair Yellow, Tea-Colored Tannin Water Filter can address typical tannin-related issues.
If you want to identify tannins in your water, start with visible signs and basic testing
Tannins can give water a yellow to brown tint and cause staining on fixtures or laundry. Because Jefferson County’s public water source is surface water, conditions exist where tannins may enter household water. However, no federal or local public water system testing currently tracks tannin levels in this area, so direct testing of your water is the only way to know your situation.
Begin by observing water color and stains and consider purchasing a laboratory test specifically targeting tannin concentration. Such a test will provide a quantitative measure, differentiating tannins from other discoloring agents.
If your home’s plumbing is older or uses certain materials, consider their influence separately from source water
Discoloration or staining is not always from source water tannins. Older pipes, iron components, or certain plumbing materials can cause similar effects unrelated to tannins. Since the Louisville Water Company reports low lead levels and no health violations, discoloration from plumbing may be more likely if your home is older or has aging components.
Understanding whether stains arise before or after your water enters your home helps identify if tannins or plumbing conditions are responsible.
If your water source includes deeper wells or filtered supply, your tannin expectations may differ
Jefferson County’s water comes from surface sources rather than deep wells, where tannins tend to be less common due to reduced organic material. Households with private wells should test their water independently to assess tannins. For homes on the Louisville Water Company system, surface water origin suggests tannins could be present if staining or discoloration occurs.
If treating tannins, compare filtration capacity with your household’s daily water use
The Pentair Yellow, Tea-Colored Tannin Water Filter ships ready to configure for residential water use and is designed to reduce tannin coloration and staining. To ensure effective treatment, consider your household’s daily water consumption. Filters must handle typical volume demands without frequent maintenance or performance loss.
Choosing a system sized appropriately for your water needs helps maintain clear water and operational efficiency.
Understanding government sampling terminology: detected, median, and range
The Louisville Water Company’s public record reports no health-based violations, with a 90th percentile lead concentration of 0.0011 mg/L measured at distribution points. This statistic relates to plumbing and distribution, not source water or tannins. No tannin data exist for this system or the area in federal databases, so detection or absence in record data does not reflect tannin levels.
In general, detection means the substance was measured but is not an indicator of safety or problem severity. Median and range values summarize concentrations in sampled points but do not apply for tannins here.
If your household is large or a seasonal property, treatment needs may vary
Larger households or properties used seasonally may require filters with greater capacity or differing maintenance schedules. The Pentair system’s design accommodates typical residential use but consider how water consumption patterns affect filter life and performance. Second homes with infrequent use might need additional flushing or checks before use to manage tannin-related discoloration effectively.
The Louisville Water Company’s record reflects surface water serving Jefferson County’s broad population with no health violations recorded. Because tannin testing is not part of this public system’s data, individual water testing is key to determining tannin presence. The Pentair Yellow, Tea-Colored Tannin Water Filter offers a documented way to reduce tannin-related color and staining when present. For official information, consult EPA public water system records for Louisville Water Company.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2023-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for LOUISVILLE WATER COMPANY (KY0560258), surface water supply, serving 806997 people: 0 health-based violations of 1 total; lead 90th percentile 0.0011 mg/L
- ✓ 90-Day Money-BackNo restocking fees — return within 90 days.
- ✓ Manufacturer WarrantyGenuine Fleck · Pentair · VIQUA equipment.
- ✓ Free Expert SizingTalk to a specialist and buy the right system the first time.