Comparing York County Bedrock Aquifer Data With Neighboring Areas: Avoiding Assumptions
Government groundwater sampling in York County, Maine, focuses on bedrock aquifers. The U.S. Geological Survey collected data from six wells between August and October 2011, with well depths ranging from 104 to 365 feet. This data documents iron presence in that specific source type and location but does not directly describe your well's water quality. Neighboring counties may show different ranges or median values because of differing geology or hydrology, so while regional data offer context, they are not a direct predictor of individual household water conditions.
Measured Iron Range and Federal Standards: What This Range Signifies—and What It Does Not
The six sampled wells in York County bedrock aquifers showed iron from 3.9 to 2180.0 micrograms per liter, with a median value of 26.7 micrograms per liter. None exceeded any federal health-based threshold, which means that while iron was detected consistently, this presence alone is not a violation or an unsafe finding. Iron as a constituent mainly affects aesthetics such as water color, taste, and staining potential rather than health. Decisions about treatment should consider the levels found specifically in your water through testing, not just regional values.
Understanding 'Detected,' 'Median,' and 'Range' in York County Sampling Records
In this context, 'detected' means instruments measured iron in all six wells; it is not an indication of a problem by itself. The 'median' (26.7 μg/L) is the middle value between the lowest and highest concentrations found among samples. The 'range' (3.9 to 2180.0 μg/L) shows variability among the wells but does not imply that every well or household water in the area experiences those extremes. These terms help summarize the area's iron presence but cannot substitute for individual water quality tests.
Sample Size and Well Variety: Why Six Wells Inform but Do Not Define All Local Water Quality
The area record is based on six samples from six different wells, a limited dataset that provides a snapshot rather than a full picture. Each well’s depth and location influence its water quality, and household wells may vary widely even within the same aquifer. The small number of samples means careful interpretation is needed. Consumers should use this information as background rather than definitive evidence of their own water condition.
Aesthetic Secondary Standards Versus Health-Based Limits in Water Quality Assessment
The iron levels found relate to aesthetic secondary standards, which address factors such as color, taste, and staining, differing from health-based limits aimed at safety. Iron concentrations in these samples were below any federal health-based thresholds. Exceeding aesthetic thresholds is not a safety concern but may affect water appearance and performance. Treatment choices can focus on managing these aesthetic implications rather than remedial health risks.
Influence of Plumbing Materials and Age Separate From Source Water Quality
Rust and hardness issues in household water are not determined solely by source water iron content. Plumbing material and the age of household pipes also play roles in how water quality presents at the tap. Older or corroded pipes can increase rust-colored water regardless of the aquifer’s iron levels. Understanding the plumbing context is essential when evaluating the cause of rust and hardness and selecting appropriate water treatment solutions.
In summary, York County aquifer records help frame expectations about rust and hardness but cannot substitute for testing your own well water. The Pentair Well Rust + Hardness System ships ready to configure and offers a documented approach to managing these issues with a grain capacity of 32,000, providing a targeted option for households facing rust and hardness conditions.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2011-10-25. 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 BEDROCK aquifer (York County): 6 results from 6 wells, median 26.7 ug/L, range 3.9-2180.0 ug/L; none above any federal threshold
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