Interpreting Iron Data from Nassau County Aquifer Samples
Laboratory reports list iron concentrations in micrograms per liter (ug/L), showing how much iron was measured in water samples.
The median iron level from 27 samples across 12 wells in Nassau County's aquifer 112GLCLU is approximately 1268.5 ug/L.
Individual sample results ranged broadly from as low as 6.1 ug/L to as high as 9740.0 ug/L, reflecting natural variability in groundwater.
Iron was detected in 16 samples, while 11 samples were below the reporting limit, indicating no iron measurable by the lab's testing method in those cases.
Water Fixtures and Appliances Most Affected by Iron Bacteria
Iron bacteria primarily impacts water fixtures with extended water contact, such as faucets and showerheads, where bacterial slime can accumulate.
Appliances sensitive to build-up, including water heaters and washing machines, may experience operational decline over time due to iron bacterial deposits.
Pipes and plumbing components can develop reddish-brown stains and deposits that come from iron bacteria presence, affecting water appearance and flow.
Sample Size and Its Influence on Data Reliability
The data comes from 27 samples collected over a ten-year period from 12 distinct wells ranging in depth from 13 to 375 feet.
The area data captures conditions specific to Nassau County's aquifer 112GLCLU but does not pinpoint the condition of any individual homeowner’s well or tap water.
A limited number of samples means localized variations in iron presence may not be fully represented, so personal water testing is critical for precise household assessment.
Differentiating Iron Bacteria from Other Similar Water Concerns
Iron bacteria is distinct from general iron presence; it involves bacteria that feed on iron and produce slime, causing staining and biofilm.
This issue differs from sediment problems, which involve particulate matter but lack bacterial growth and slime formation.
It also differs from common bacterial contaminations that may pose health risks; iron bacteria is not classified as a health hazard based on current definitions.
Sources of Iron Bacteria in Nassau County's Groundwater
Iron bacteria occurs naturally in the local groundwater environment, where iron minerals provide nutrients for these bacteria in aquifer 112GLCLU.
The bacteria grow in areas with oxygen and iron available, conditions commonly found in the sampled wells between 13 and 375 feet deep.
Groundwater movement and soil composition influence where and how extensively iron bacteria populations develop in this region.
What Homeowners Should Keep in Mind About Area Iron Data
These regional iron findings do not indicate the iron bacteria levels in your specific household water supply.
No iron result from the sampled wells exceeds any federal regulatory threshold, so these findings do not represent contamination by legal standards.
Testing your home's water is the only way to identify actual iron bacteria presence and concentration before selecting a treatment approach.
The Pentair Iron Bacteria & Slime Filter ships ready to configure and is designed to address iron bacteria issues effectively when they are confirmed in household water.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2021-10-01. 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 Iron in the 112GLCLU aquifer (Nassau County): 27 results from 12 wells, median 1268.5 ug/L, range 6.1-9740.0 ug/L; none above any federal threshold
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