Comparing Mesa’s Chromium-6 Record with Neighboring Areas Without Overreading
The City of Mesa’s public water system in Maricopa County delivers surface water to roughly 466,000 people through 142,500 connections. Federal monitoring from 2013 to 2015 detected chromium-6 in all samples, with levels ranging from just above 0.03 µg/L up to 24.0 µg/L. While detections occurred everywhere tested, these measurements reflect the entire system’s water, not any individual household’s supply. By contrast, neighboring counties may show different detection patterns and concentrations due to source water and system differences. When comparing Mesa’s record to others, it is important to remember that each dataset describes a regional system condition, not a specific home. These measurements serve as a starting point for understanding potential water characteristics in your area but do not reveal your own tap water’s exact chemistry.
Meaning of ‘Detected’, ‘Median’, and ‘Range’ in Mesa’s Chromium-6 Sampling
A detection simply means that an instrument found chromium-6 present above the reporting limit of 0.03 µg/L during sampling. The median value of 4.0 µg/L represents the middle of all detected results, providing a general idea of typical levels found, while the range up to 24.0 µg/L shows the highest measurement recorded during the survey. These terms describe the scope and variability of chromium-6 occurrence in Mesa’s system. None of these figures indicate a safety violation or guaranteed condition at any particular home. They offer context for regional water quality and assist in evaluating potential water treatment needs.
How Chromium-6 Enters Mesa’s Groundwater and Distribution System
In the Mesa area, chromium-6 primarily originates from surface water sources that may carry it from natural mineral deposits or industrial activities in the region. This hexavalent form of chromium can enter the water supply through runoff or leaching into surface water reservoirs and then flow into the distribution system delivering water to homes. Understanding this pathway helps in recognizing why chromium-6 appears consistently in local water samples and why treatment approaches targeting this contaminant are important for concerned households.
Judging Treatment Capacity Against Household Daily Water Demand
Choosing appropriate water treatment involves matching the equipment’s capacity to the household’s daily water use. Average daily water consumption varies widely but generally falls between 50 to 100 gallons per person. Treatment devices designed to reduce chromium-6 must handle this volume effectively to maintain water quality without interruption. Assessing your household’s water usage through meter readings or bills informs the selection of a suitable filtration system that can operate continuously and cope with peak demand periods.
Understanding Mesa’s Chromium-6 Range Relative to Federal Standards
Federal regulations currently do not set a maximum contaminant level (MCL) specifically for chromium-6; however, a total chromium MCL of 100 µg/L applies. Mesa’s highest detected chromium-6 was 24.0 µg/L, well below this total chromium standard. This information clarifies that the presence of chromium-6 in Mesa’s public water is measured and recognized but does not constitute a violation or safety breach for the system. It also does not directly establish individual household water conditions, which require separate testing to determine.
For households in Mesa seeking to address chromium-6 and ensure water quality that fits their daily consumption demands, the Pentair Chromium-6 Filter ships ready to configure, providing a documented solution tailored to remove this constituent effectively. Matching treatment capacity to your household’s actual water use ensures consistent performance in reducing chromium-6 presence from your tap.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-01-21. 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 Mesa (AZ0407095), AZ: 256 results across 2 listed contaminants, 243 detections above the reporting level; no federal MCL for hexavalent chromium; total chromium MCL 100 ug/L
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