How the Documented Treatment Technology Removes or Neutralizes Chromium-6
The C-Series System Uses Targeted Filtration
The C-Series Chromium-6 Filter employs specialized media that adsorb and reduce dissolved hexavalent chromium in water. This system targets chromium-6 molecules specifically, converting them into forms more easily captured and removed from the water stream, thus lowering its concentration as the water passes through.
Designed for Residential Demand Levels
Configured to handle typical household water use, this filter accommodates daily volumes common in residential settings without sacrificing treatment effectiveness for chromium-6.
What a Certified Laboratory Test for Chromium-6 Reports and How to Read It
Test Reports Include Concentration in Micrograms per Liter (µg/L)
A laboratory report for chromium-6 details the measured concentration in the water sample, typically shown in µg/L. This number quantifies how many micrograms of chromium-6 are present per liter of water.
The Reporting Level Indicates Detectability Threshold
The reporting level, here 0.03 µg/L, is the minimum concentration the lab can reliably measure. Results below this level may be reported as nondetectable but do not indicate absence.
A Single Test Reflects Only That Sample
Individual test results apply strictly to the sampled water source at the time of collection. Household water can vary due to plumbing and supply changes.
What 'Detected', 'Median' and 'Range' Mean in the Sampling Record for Olmsted County
Detected Means the Constituent Was Measured Above the Reporting Level
In the EPA record for the Rochester public water system serving Olmsted County, one of sixteen samples detected chromium-6 at exactly 0.03 µg/L—the laboratory’s reporting level. This indicates the presence was measurable but not necessarily significant.
Median of Detections Reflects the Center of Detected Values
For chromium-6, the median value of detected concentrations is also 0.03 µg/L, indicating a low but consistent presence when detected.
Range Shows Variation Among Detected Samples
The detection range spans from nondetects up to 0.03 µg/L, meaning most samples showed no measurable chromium-6 while a few registered it right at the detection limit.
What Happens When Chromium-6 Is Left Untreated Over Time
Accumulation May Affect Water Quality Over the Long Term
Without addressing chromium-6, low-level presence can persist, potentially influencing taste and contributing to staining in some household fixtures, though no health-based violations have been recorded for this system.
Long-Term Exposure Effects Vary by Concentration and Use
The health implications depend on individual household water concentrations, which require specific testing. The system-wide data do not indicate health violations.
Which Fixtures, Appliances or Processes Are Affected First and Why
Water Used for Drinking and Cooking Is Most Sensitive
Any chromium-6 in water directly consumed or used in food preparation has the highest priority for removal.
Appliances Using Large Volumes of Water May Show Effects
Water softeners, ice makers, or humidifiers operating with untreated water may accumulate deposits or staining linked to chromium levels.
Shower and Bath Fixtures May Experience Minor Staining
Over time, chromium-6 can contribute to slight discoloration or residue on ceramic and metal surfaces.
To understand your household’s specific chromium-6 levels, a certified laboratory water test is necessary. Based on the water use and measured concentrations, the C-Series Chromium-6 Filter ships ready to configure for typical household daily demand, offering a documented solution for reducing chromium-6.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-11-03. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Rochester (MN1550010), MN: 32 results across 2 listed contaminants, 8 detections above the reporting level; no federal MCL for hexavalent chromium; total chromium MCL 100 ug/L