Fleck Black Manganese Stains Filter

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Comparing Manganese Data in St. Lawrence County to Nearby Regions

The manganese data available for St. Lawrence County’s aquifer 367BKMN reflects measurements collected from multiple wells over a decade. While it provides insight into regional water characteristics, this data should not be directly applied beyond its geographic and hydrogeologic context. For instance, a neighboring county may show differing manganese levels due to variations in geology, aquifer composition, and groundwater flow. Thus, while the general presence of manganese is expected in this region’s groundwater, local variations can be significant and depend on specific well location and depth.

Sample Size and Interpretation of the Manganese Record

The manganese figures for St. Lawrence County come from 22 sample results drawn from 10 separate wells between 2010 and 2020. These wells ranged in depth from 60 to 280 feet. A sample size of this extent gives a regional overview but cannot capture all micro-scale variations or fluctuations that may exist in any individual well. Therefore, homeowners should recognize this data as indicative of regional groundwater trends rather than a precise description of their own well water.

Understanding Detected, Median, and Range in Manganese Measurements

All 22 sampled results detected manganese, with none reported below the equipment’s reporting limit. The recorded concentrations ranged from 1.05 to 170.0 micrograms per liter (µg/L), with a median value of 32.1 µg/L. Here, 'detected' means manganese was measured by instruments, but this does not indicate a violation or safety issue. The 'median' provides a midpoint concentration among the samples, and 'range' shows the lowest and highest measured values, offering a sense of variability in the aquifer.

How Manganese Concentrations Relate to Federal Standards and Household Impact

None of the manganese results in this data set exceed federal health-based thresholds, which means that from a regulatory standpoint, these levels are within accepted limits. However, manganese can cause aesthetic and operational challenges in household water, such as discoloration or staining, even at concentrations below health-based standards. This underscores the importance of assessing your own water through testing rather than relying solely on regional data. Testing confirms the actual manganese concentration in your home's supply and guides appropriate treatment decisions.

Sources of Manganese in St. Lawrence County Groundwater

Manganese naturally occurs in many rock and soil types found in St. Lawrence County’s aquifer system. It enters groundwater primarily through the weathering and dissolution of manganese-containing minerals in the subsurface environment. Well depth and local geological variations influence manganese’s presence, with deeper wells potentially accessing water with different manganese levels than shallower sources. The regional aquifer's characteristics, including its mineral composition, directly affect manganese concentrations in groundwater.

Summary and Next Steps for Homeowners

The manganese data for St. Lawrence County’s aquifer 367BKMN comes from comprehensive sampling at multiple wells over ten years, providing a valuable regional perspective but not a specific well profile. Homeowners experiencing issues after equipment failure should rely on direct testing of their own water to determine manganese concentrations. For addressing manganese-related aesthetic or staining concerns in residential water, the Fleck Black Manganese Stains Filter ships ready to configure and is documented to treat manganese effectively when properly matched to water conditions. For more detailed information, consult the original U.S. Geological Survey groundwater data for aquifer 367BKMN at waterdata.usgs.gov.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2020-07-23. 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 367BKMN aquifer (St. Lawrence County): 22 results from 10 wells, median 32.1 ug/L, range 1.05-170.0 ug/L; none above any federal threshold