Are manganese levels a concern in my household water in Coconino County? Government data from the U.S. Geological Survey provides measured manganese concentrations in local wells, which helps frame typical regional values but not your specific water quality. Interpreting these figures requires understanding how manganese enters groundwater, the sample size behind the data, and what your own test results mean.
How Does Manganese Enter Groundwater in Coconino County's Aquifer 310COCN?
Manganese is a naturally occurring element found in soils and rocks. In Coconino County’s aquifer 310COCN, manganese enters groundwater primarily through the weathering of manganese-containing minerals in the surrounding geology. The depth of sampled wells, ranging from 600 to 1150 feet, may influence manganese presence but does not guarantee the same for all wells. Groundwater flow patterns and local mineral content all contribute to manganese levels detected in area wells.
How Many Samples and Wells Support These Coconino County Manganese Figures?
The data stems from 20 sample results collected across 3 separate wells in the aquifer from July 2017 to April 2026. While this gives a useful regional snapshot, the relatively small number means individual locations can vary significantly. The range of manganese measured was from 39.0 to 410.0 micrograms per liter (µg/L) with a median value of 105.5 µg/L. All results were below federal manganese thresholds, indicating no regulatory exceedances in these samples.
A Worked Example: Reading the Record’s Median and Range as a Homeowner
If your household water comes from a well in this aquifer, you might see manganese test results anywhere within the documented range. The median of 105.5 µg/L suggests half the samples measured less and half more. Your well's value won't be known without specific testing. Knowing these regional levels helps set expectations but does not determine your actual manganese concentration or water quality.
How to Compare Coconino County’s Manganese Record with Neighbouring Counties Without Overreading It
Comparing manganese levels to nearby counties can offer context but must be done cautiously. Different aquifers, well depths, and geological conditions influence manganese presence. A neighboring county’s data might show higher, lower, or similar manganese ranges, but this does not imply your own water matches any specific values. Local testing remains essential for household assessment.
What a Certified Laboratory Test for Manganese Reports and How to Read It
A certified water test for manganese typically reports concentrations in micrograms per liter or milligrams per liter. The test confirms your water’s specific manganese level and reveals if it is detectable or below reporting limits. Since manganese is not a health-based regulated contaminant at typical groundwater levels, such tests help assess aesthetics like staining or taste rather than safety. Understanding your test report empowers informed decisions about water treatment.
What Changes for a Large Household, a Second Home, or a Seasonal Property?
Household size and water use frequency can influence treatment needs if manganese is a concern. Larger homes or those with multiple bathrooms may require systems sized for higher flow rates. Seasonal or second homes might see water quality changes after inactivity, affecting manganese oxidation or sediment accumulation. Options like the Autotrol Black Manganese Stains Filter ship ready to configure and can address manganese-related staining and aesthetic issues effectively when sized and maintained appropriately.
This page has walked through how manganese enters groundwater in Coconino County, the sampling basis behind regional manganese data, how to interpret regional medians and ranges, and what certified tests report. These steps support understanding your household’s manganese status with reference to documented area conditions and choosing solutions accordingly.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-04-30. 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 Manganese in the 310COCN aquifer (Coconino County): 20 results from 3 wells, median 105.5 ug/L, range 39.0-410.0 ug/L; none above any federal threshold
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