Fleck Chromium-6 Filter

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What is the difference between total chromium and chromium-6 in water testing?

When assessing chromium in water, it is important to distinguish between total chromium and chromium-6 (hexavalent chromium). Total chromium includes all forms, both trivalent chromium (chromium III) and hexavalent chromium (chromium VI). Government monitoring in the Marion County area, specifically the City of Keizer public water system, recorded chromium-6 in 5 out of 32 samples at levels up to 0.098 micrograms per liter (parts per billion) and total chromium detected up to 0.3 micrograms per liter. Since total chromium combines both forms, it does not precisely reveal how much chromium-6 is present, which is the form of particular concern for household water quality considerations.

How do chromium oxidation states change from the well to my tap?

The chemical form of chromium can transform between the source well water, distribution mains, and your tap depending on water chemistry factors such as pH and the presence of oxidizing or reducing agents. Chromium-6 is generally more mobile and soluble in groundwater, but environmental conditions may alter it to chromium-3 or vice versa. Therefore, water sampled at the well may differ chemically from water at the tap. This means laboratory testing of your household water is necessary to know your specific chromium-6 level rather than relying solely on public system data.

What is the recommended approach to verify chromium-6 levels in my household water?

Because public data represents the overall system rather than individual homes, the first step is to obtain a certified laboratory analysis for chromium-6 concentration in your well or tap water. This test targets hexavalent chromium specifically, providing clear results to inform treatment decisions. Initial inexpensive checks, such as reviewing local water reports and simple water quality parameters, help eliminate other potential issues but will not confirm chromium-6 content.

How often does the Fleck Chromium-6 Filter require maintenance?

The Fleck Chromium-6 Filter is designed to operate with a straightforward maintenance schedule involving routine checks and media replacement at intervals outlined by water use and chromium levels found in your household test results. This rhythm ensures the filter consistently addresses chromium(VI) challenges without frequent disruption. The equipment ships ready to configure and operates automatically once set up, requiring simple upkeep rather than specialized services.

What are potential long-term effects if chromium-6 remains unaddressed?

While chromium-6 concentrations detected in the Marion County system have not resulted in any health-based violations, prolonged exposure to elevated levels not monitored here can impact water taste and stain fixtures or laundry. Over many years, untreated chromium-6 may contribute to aesthetic and functional water quality concerns. Proactive testing and targeted treatment can help maintain water clarity and peace of mind.

What single water test should I order to clarify chromium-6 in my household water?

You should request a specialized test for chromium-6 (hexavalent chromium) from a certified laboratory. A result reported in micrograms per liter (parts per billion) at or below the detection limits typical of federal monitoring will help confirm your water condition. Such testing provides the definitive information needed to decide if the Fleck Chromium-6 Filter suits your household’s water quality goals.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2014-09-24. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for City of Keizer (OR4100744), OR: 64 results across 2 listed contaminants, 7 detections above the reporting level; no federal MCL for hexavalent chromium; total chromium MCL 100 ug/L