Government groundwater sampling in Essex County, Massachusetts, specifically from aquifer 112SRFD, shows that iron was detected in 14 of 16 samples taken from eight wells between 2010 and 2019. These wells ranged in depth from 20 to 63 feet. Iron concentrations varied broadly from 5.3 to 29,200 micrograms per liter, with a median level around 72.85 micrograms per liter. Importantly, none of these findings exceeded federal safety standards. This information reflects regional water conditions but does not establish the quality of any individual household’s water, which still requires its own testing.
If Your Plumbing Materials and Age Are a Concern
The presence and impacts of iron bacteria often depend not just on source water quality but also on the plumbing system itself. Older plumbing, or systems using iron or steel pipes, might provide surfaces where iron bacteria can more easily flourish. Corrosion and accumulated deposits in pipes can create environments supporting slime and bacterial growth, separate from the iron content in water. If your previous treatment system failed, consider that replacing or upgrading your equipment alone may not fully address the issue if the underlying plumbing favors bacterial development.
If Your Household Size or Usage Pattern Varies
Larger households typically have higher daily water demands, which can influence how iron bacteria and slime build up in plumbing. Similarly, second homes or seasonal properties often experience extended stagnation periods, increasing the likelihood of bacterial growth before water use resumes. Systems designed for smaller or continuous use may not perform adequately under these varying conditions. After equipment failure, reassessing your household’s water usage pattern can help determine the capacity and type of treatment best suited for your situation.
If Your Well or Source Depth Differs from Local Sampling
The USGS sampling data covers wells between 20 and 63 feet deep in Essex County’s aquifer 112SRFD. If your well is significantly shallower or deeper, or if you draw water from a different type of source, iron bacteria presence and concentration may differ from regional averages. Well construction and depth can affect oxygen levels and nutrient availability, altering bacterial growth conditions. Independent testing of your specific water source is necessary to understand your situation accurately.
If You Need to Assess Treatment Capacity Relative to Demand
Choosing an effective approach after treatment equipment failure involves matching system capacity to your household’s daily water use. A treatment system that cannot handle peak demand or the volume of water passing through may allow iron bacteria and slime to persist or return quickly. Evaluating average and peak water consumption will guide selecting appropriate equipment sized to maintain water quality consistently. The C-Series Iron Bacteria & Slime Filter ships ready to configure for diverse household needs, supporting effective control over iron bacteria where it occurs.
If You Want to Understand Sample Results Terminology
Terms such as 'detected,' 'median,' and 'range' reflect how iron measurements were reported in the regional sampling. 'Detected' means the instrument measured iron at or above the reporting threshold but does not imply a violation or health concern. 'Median' indicates the middle value of all samples, giving a sense of typical concentration in the area wells. The 'range' shows the lowest and highest detected concentrations, illustrating variability. This sampling covers multiple wells and years and helps set expectations but does not replace specific testing of your water.
The U.S. Geological Survey's data referenced here represents iron measurements from sampling in Essex County, MA aquifer 112SRFD. These findings inform regional water conditions but do not establish any individual well’s iron bacteria levels. For personal water assessment, laboratory testing of your own water source remains essential. The C-Series Iron Bacteria & Slime Filter offers a documented solution built to address iron bacteria in residential water where it is confirmed to be present.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-09-19. 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 112SRFD aquifer (Essex County): 16 results from 8 wells, median 72.85 ug/L, range 5.3-29200.0 ug/L; none above any federal threshold