Understanding the UCMR3 Survey and Its Household Implications
Federal Monitoring Targeted Large Public Water Systems
The 2013-2015 Unregulated Contaminant Monitoring Rule (UCMR3) gathered data on chromium-6 in the Camden District public water system, serving over 17,000 people in Camden-Wyoming, Kent County, Delaware.
Single-System Data Offers Regional Not Individual Water Quality Insight
Results from this survey reflect the system-wide groundwater source but do not indicate the chromium-6 level in any individual household's water supply.
Monitoring Focused on Detection, Not Compliance Testing
The data documents the presence and concentration ranges of chromium(VI), but detection above the reporting level is not a violation and does not classify the water as unsafe.
Sources of Hexavalent Chromium in Groundwater
Chromium-6 May Originate from Natural Aquifers or Human Activity
Chromium-6 in groundwater can come from naturally occurring geogenic sources, especially in arid, alkaline aquifers, or from industrial processes, though the Camden District’s records do not specify sources.
Public Water System Uses Groundwater Supply
The Camden public water system draws from groundwater sources, indicating potential for low-level hexavalent chromium presence consistent with regional geology.
EPA Records Indicate No Health-Based Violations
Though chromium-6 was detected in some samples, the public water system's official records report no EPA health-based violations related to chromium.
Treated Water Characteristics After Applying Specialized Filtration
Households Report Existing Equipment Challenges to Handle Chromium-6
While existing filtration equipment may function, some households find it insufficient to continuously manage chromium(VI) levels effectively over time.
Water with Hexavalent Chromium Can Appear Clear Yet Contains Trace Chromium-6
Chromium-6 does not cause visible water changes, so treatment serves to address trace concentrations that may impact taste or long-term water quality preferences.
The Pentair Chromium-6 Filter Ships Ready to Configure for Household Use
This specialized filtration technology is designed to provide an effective line of defense against chromium(VI), improving water characteristics at the tap when properly connected in the home’s water flow.
Mechanism of Chromium(VI) Capture by the Pentair Technology
The Pentair Technology Targets Hexavalent Chromium Specifically
The system applies advanced filtration processes that focus on the chemical properties of chromium(VI), helping reduce its concentration in water reaching household taps.
It Works Without Chemical Addition, Using Physical and Chemical Interactions
Functioning via ion exchange or adsorption mechanisms, the technology binds chromium-6 compounds, reducing their presence while maintaining water flow and volume suitable for residential use.
Performance Does Not Depend on Total Chromium Measurements Alone
Because total chromium includes multiple oxidation states, the targeted technology addresses chromium(VI) specifically, which is important given regulatory and health-based monitoring distinctions.
Interpreting ‘Detected,’ ‘Median,’ and ‘Range’ in the Sampling Data
‘Detected’ Indicates Measurement Above The Reporting Level, Not a Violation
Four of twenty samples from Camden District showed chromium-6 levels above the 0.03 µg/L reporting threshold, with the highest measured at 0.93 µg/L.
Median Values Represent the Middle of Detected Concentrations, Not an Average
The median of detected chromium-6 samples was 0.505 µg/L, illustrating typical detected levels but not indicating an exceedance of any federal maximum contaminant level (MCL).
Range Displays The Spread From Lowest To Highest Measured Values
Chromium-6 results ranged from below 0.03 µg/L to just under one part per billion, remaining well below the total chromium MCL of 100 µg/L.
This page provided a structured overview of chromium-6 in Camden-Wyoming’s public water system, clarifying what federal data can and cannot say about individual household water. It also presented how a dedicated Pentair filtration option can complement existing equipment to help manage hexavalent chromium challenges at home.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-07-22. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Camden District (DE0000124), DE: 40 results across 2 listed contaminants, 6 detections above the reporting level; no federal MCL for hexavalent chromium; total chromium MCL 100 ug/L
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