Pentair Lead in Water Filter

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You might notice a metallic taste or be concerned about lead in your home water supply in Pierce County. The Tacoma Water Division serves over 446,000 people with surface water. According to EPA records, the lead 90th percentile in system sampling was 0 mg/L at the end of 2025. This figure reflects the distribution system and the effects of household plumbing materials rather than the source water itself.

If you want to understand what "detected" and related terms mean in the government sampling

The 90th percentile measure reported indicates that 90% of sampled faucets showed lead levels at or below 0 mg/L during the latest testing period. This does not mean every home has zero lead, but it means the majority of tested taps were at or below that amount. "Detected" refers to measurable amounts found with sensitive instruments but is not by itself a violation or a safety determination. The EPA also records whether health-based violations have occurred; the Tacoma system has nine such violations, but none related to lead in this sampling period.

If you want to know the best way to evaluate your home's water lead level

Start with a simple inspection of your household plumbing materials, especially if your home was built before 1986 when lead pipes and solder were more common. If you suspect lead or want a definitive answer, collecting a water sample from your tap and sending it to a certified laboratory is the only way to establish your home's specific lead content. This individual testing is key because the system's numbers reflect averages across many homes, not yours in particular.

If you observe issues with specific fixtures or appliances

Lead tends to appear first in water from fixtures with older brass components, lead solder, or lead service lines. Kitchen and bathroom faucets are common places to find lead leaching, especially after water sits for several hours. Hot water heaters and appliances that store water can also contribute if their internal materials contain lead. Identifying these points helps focus testing and treatment efforts.

If lead presence in water is left unaddressed over many years

Chronic exposure to lead via drinking water can contribute to health risks, particularly for children and pregnant women. It is important to recognize that the lead levels reported for Tacoma Water Division do not imply immediate danger but do warrant caution if older plumbing exists. Without intervention or filtration, lead can continue to leach into water, increasing potential exposure.

If you want to understand the significance of the government-reported lead range compared to federal limits

The EPA's maximum contaminant level goal for lead is zero, reflecting the ideal to have none present. The reporting from Pierce County’s Tacoma system shows the 90th percentile at zero, indicating good overall control of lead in the distribution system. However, this does not guarantee that no lead is present in every household, as localized plumbing can affect results. These figures are not health violations but help guide water system improvements and homeowner awareness.

If you consider how seasonal and multi-year changes appear in the data

Lead levels can vary with water chemistry, temperature, and usage patterns throughout the year. The Tacoma Water Division samples regularly, with results graphed over time to observe trends. The latest data from 2025 confirms consistent low lead presence in the system overall, though occasional fluctuations may occur. This ongoing monitoring informs when additional precautions may be advisable.

These government data reflect lead conditions in the Tacoma Water Division distribution system serving Pierce County broadly. To determine your home's situation, testing your water is essential. For households concerned about lead, the Pentair Lead in Water Filter ships ready to configure and can help reduce lead content at the tap, providing an extra layer of protection based on proven filtration technology.

Learn more or review the EPA’s Tacoma Water Division water system record at the official government website for detailed sampling and compliance information.

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 TACOMA WATER DIVISION CITY OF (WA5386800), surface water supply, serving 446170 people: 9 health-based violations of 12 total; lead 90th percentile 0 mg/L