The water drawn from the Navajo County aquifer travels from deep underground wells toward your household taps, carrying minerals dissolved from surrounding rock formations. This natural process shapes the water's hardness—a measure of dissolved calcium and magnesium ions. Addressing hard water requires understanding how hardness levels in the Navajo County aquifer compare to standards and what they mean for your household.
If you want to understand what the measured hardness range means for your water
Between June 2010 and August 2013, groundwater samples from deep wells (approximately 2350 feet) in Navajo County reported hardness median concentrations around 3.28 mg/L, with a narrow range from 3.17 to 3.35 mg/L. These figures are well below any federal secondary standards for water hardness, indicating no official classification of excess hardness in this regional aquifer based on these samples. However, these measurements reflect only a small number of wells in this area and do not necessarily define the hardness in your own private well or municipal supply, which can vary due to local geology.
If you want to consider how hardness varies over time in the local groundwater
The samples collected spanned over three years yet showed minimal variation, suggesting stable hardness levels in this part of the Navajo County aquifer during that period. Seasonal or multi-year fluctuations appear limited in these data, but changes outside the sampled wells or later dates are not captured. A well in one area or at shallower depth might experience different trends, reinforcing the importance of current, localized testing for your household’s water.
If you want to understand how calcium and magnesium enter this aquifer's groundwater
Calcium and magnesium enter groundwater through natural dissolution of minerals in the bedrock and soil. In Navajo County, the geologic formations supplying the aquifer influence hardness as water slowly percolates down. These minerals are common components of hard water and contribute to scaling inside pipes and appliances. Knowing how these elements get into the water clarifies why hardness is common but varies with geology and depth.
If you want to know how public water system records differ from private well tests
Public water utilities regularly monitor their sources and report average water quality, including hardness, for compliance and consumer information. These results represent treated or source water across broad areas and can serve as general guides. In contrast, private well water quality depends entirely on the specific well's location, depth, and geochemistry. Only a direct and current test of your household water can confirm your actual hardness level.
If you represent a commercial or industrial operation considering hardness impact
Operations consuming large volumes of water will want to measure hardness at multiple times and points, considering potential impacts on process efficiency and equipment lifetime. The narrow hardness range in these USGS samples from Navajo County may not reflect local variability in production wells or surface water used in industrial processes. Additional constituents might also be relevant depending on use.
If you want a practical sequence to confirm your water's hardness status
- Start with a simple, affordable water hardness test kit to check your household water.
- If results indicate hardness concerns, consider a laboratory test for precise calcium and magnesium levels.
- Evaluate water appearance, taste, and appliance scale buildup as supplementary indicators.
- Consider the Fleck Hard Water System, a direct-purchase solution known to reduce hardness by treating calcium and magnesium ions effectively.
This overview reflects groundwater hardness in the Navajo County aquifer based on USGS well sampling from 2010 to 2013. For more details and data, visit the official USGS water data site provided.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2013-08-01. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.
On record: U.S. Geological Survey sampling of Hardness, Ca, Mg in the aquifer (Navajo County): 4 results from 1 wells, median 3.28 mg/L, range 3.17-3.35 mg/L; none above any federal threshold
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