Pentek Chromium-6 Filter

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If your tap water tests detect chromium-6 at trace levels in Pierce County

Measurements reported by the Southwood Water System, serving over 64,000 residents in Pierce County from surface water sources, show hexavalent chromium (chromium-6, Cr(VI)) presence in many samples. Between 2014 and 2015, 33 out of 41 results detected chromium-6 above the reporting threshold of 0.03 micrograms per liter (µg/L), with a highest recorded level of 0.23 µg/L and a median of 0.11 µg/L. This data comes from a federal unregulated contaminant monitoring rule (UCMR3) survey aiming to understand regional water characteristics rather than establish compliance or safety for any specific household.

This federal survey provides valuable regional insight but cannot determine the chromium-6 concentration in your individual residence’s water. Testing your home's water directly is the only method to know your household's actual chromium-6 levels for informed decision making.

If you want to understand why total chromium measures don’t resolve the chromium-6 question

Total chromium results reported by the same Southwood Water System ranged from non-detects to 0.34 µg/L, with detections in 16 of 41 samples. Total chromium includes all chromium species, including trivalent chromium (chromium-3), which has different chemical behavior and health considerations than hexavalent chromium. Because total chromium encompasses multiple forms, it cannot substitute for chromium-6 data when evaluating concerns or treatment needs related specifically to hexavalent chromium.

If you need to match treatment capacity to your household’s daily water use

Selecting a water treatment device that addresses chromium-6 requires assessing your household's typical water demand. Daily water usage affects how quickly a filter’s capacity may be reached, influencing maintenance intervals and performance stability. The documented Pentek Chromium-6 Filter ships ready to configure for residential use, supporting typical household flows. Knowing your average daily consumption helps ensure that any treatment option chosen maintains consistent service without premature depletion of its filtration capabilities.

If you want to know how water quality at your tap changes with the Pentek Chromium-6 Filter in use

Once configured with the Pentek Chromium-6 Filter, treated water at the tap reflects the technology’s targeted reduction of hexavalent chromium concentration. This filter employs methods shown effective in decreasing chromium-6 levels under documented conditions, improving water quality specifically with respect to Cr(VI). It does not alter other water constituents beyond its design and supports delivery of water that meets typical residential expectations for chromium-6 content management.

If you are curious about California’s 10 µg/L chromium-6 guideline and its implications for households in Pierce County

California has established a public health goal for chromium-6 in drinking water at 10 micrograms per liter, reflecting state-specific risk assessments and policy decisions. This level is substantially higher than the highest chromium-6 values reported in Pierce County’s public water system samples. Understanding this standard provides context for evaluating your household’s water data relative to precautionary benchmarks elsewhere, but it is not a federal requirement or a direct measure of safety in your area.

What you should not conclude from Pierce County’s public water chromium-6 data

Regional detection of chromium-6 in Southwood Water System monitoring does not indicate unsafe water, exceedance of any federal health-based standard, or conditions specific to your home. No violations linked to chromium-6 or other contaminants appear in this system’s EPA record. Your best source of information about your household’s water quality is a qualified test of your own water supply. After confirming your home’s chromium-6 levels, you can weigh technical approaches such as the Pentek Chromium-6 Filter based on capacity, effectiveness, and your water use patterns to make a fully informed choice.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-03-16. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Southwood Water System (WA5382844), WA: 82 results across 2 listed contaminants, 49 detections above the reporting level; no federal MCL for hexavalent chromium; total chromium MCL 100 ug/L