If you rely on a private well drawing from Plymouth County’s aquifer 112SRFD, you may be trying to decide which category of water treatment fits your home best. Area-wide data from the U.S. Geological Survey offers valuable clues but cannot replace testing your own well water. Understanding what the local record does and does not tell you can help guide your choice and avoid common misconceptions.
Myth 1: Local Aquifer Data Shows Exactly What Treatment Your Well Requires
Government sampling in Plymouth County focused on wells between 8 and 166 feet deep, with 35 samples taken from 17 wells over nearly a decade. While the median iron concentration is 20.4 micrograms per liter and results range broadly from 3.8 to 61,700, these figures describe area conditions, not your specific water. No samples exceeded any federal threshold. Therefore, although the record indicates iron is present in the aquifer, only a direct test from your well can determine your water’s actual makeup and treatment needs.
Myth 2: The First Signs of Water Quality Issues Always Appear in Kitchen Fixtures
Though iron and similar constituents can affect water quality, household appliances and fixtures tied to water flow may show early effects sooner. Water heaters, washing machines, and bathroom faucets often signal buildup or discoloration because they cycle volumes frequently and use water at elevated temperatures. Knowing which points in your plumbing system display early changes helps prioritize monitoring and treatment where it matters most.
Myth 3: Local Water Quality Stays Consistent Year-Round Without Significant Fluctuations
The sampling dates from 2010 to 2019 demonstrate that concentrations of elements like iron vary over time. The wide range in individual test results—from below detection limits up to tens of thousands of micrograms per liter—reflects natural seasonal and multi-year variation in aquifer composition. These fluctuations underscore why one-time tests might not capture the full picture and why ongoing water monitoring can be valuable for long-term treatment decisions.
Myth 4: Adjacent Counties Have Similar Water Quality Profiles So You Can Assume Similar Treatment Needs
Comparing Plymouth County’s aquifer 112SRFD data with a neighboring county’s records is tempting but requires care. Differences in geology, well depths, and sampling periods can produce distinct water characteristics even in nearby locations. The broad iron concentration range found here should not be assumed to match conditions elsewhere. Instead, local data serve as context, not a substitute for specific analysis of your property’s water source.
Myth 5: You Can Decide on Treatment Without Detailed Water Quality Information
Before selecting any treatment system, knowing certain details about your water is critical. Document the depth of your well, recent water test results including iron levels, and records of any appliance or plumbing concerns. This information equips you to evaluate treatment options effectively and identify the appropriate capacity. For instance, a treatment system rated for 32,000 grains, such as the Fleck Complete Well System, can address a variety of whole-house water challenges once your test results are confirmed.
The Essential Next Step: The single decisive action is to obtain a certified laboratory analysis of your well water, focusing on iron concentration and any other constituent relevant to your household concerns. This test result will provide the objective foundation needed to select a tailored treatment system that meets your specific needs.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-09-05. 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 (Plymouth County): 35 results from 17 wells, median 20.4 ug/L, range 3.8-61700.0 ug/L; none above any federal threshold
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