A typical laboratory test result for iron in residential water lists concentrations in micrograms per liter (ug/L). These figures alone do not imply a health risk or legal violation but indicate what instruments measured. For metropolitan Oakland County drawing from aquifer 112OTSH, known data provides a helpful context for metallic taste.
Metallic Taste Means Consistent Concentrations at Varying Well Depths, but Not Always Your Water
Samples collected from this aquifer come from wells 11 to 49 feet deep, producing a median iron concentration near 14.5 ug/L and ranging from 5.6 to 1240 ug/L across 18 tests from 16 wells between 2010 and 2016. These figures show iron presence varies with depth and location, but each well’s individual water sample is unique. Your own well water may differ and requires specific testing to confirm.
Before Seeking Advice, Note Your Water Source Details and Any Equipment Changes
Knowing your well depth, water source type, and history of any filtration or conditioning equipment helps clarify metallic taste causation. Since your existing equipment has failed, documenting when and how it failed, along with any prior treatment methods, gives professionals a clearer picture to recommend solutions precisely tailored to your household.
Metallic Taste First Affects Drinking Water and Cooking Fixtures Due to Direct Contact
Fixtures used for drinking and cooking, such as kitchen faucets and ice makers, typically reveal metallic taste signs before less direct-use fixtures. This is because the taste is most noticeable and impactful where water flavor is most critically assessed. Appliances relying heavily on pure tasting water can also experience performance changes attributed to metallic elements.
Robust Data from 16 Wells Supports Regional Trends but Limits Individual Predictability
The U.S. Geological Survey’s dataset includes 18 iron samples from 16 distinct wells in Oakland County aquifer 112OTSH. While providing a reliable range and median for the area, this relatively small sample size means individual households should not infer their water conditions without testing, especially after equipment failure.
Federal Limits Focus on Health-Based Thresholds, Not Taste Standards for Iron
None of the iron results from these area wells exceeded federal health-based thresholds. However, iron levels below these limits can still cause aesthetic effects such as metallic taste, staining, or discoloration. Understanding this distinction helps prevent confusion between health safety and water quality preferences.
The government dataset reviewed here reflects iron concentrations detected from multiple wells sampled over several years in Oakland County’s aquifer 112OTSH. For addressing metallic taste in your home water after failed equipment, the Fleck Metallic-Tasting Water Filter system ships ready to configure and is designed to reduce such aesthetic concerns effectively. For more detailed data, consult the U.S. Geological Survey monitoring location 424614083175300.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-09-27. 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 112OTSH aquifer (Oakland County): 18 results from 16 wells, median 14.5 ug/L, range 5.6-1240.0 ug/L; none above any federal threshold