This week, you need to decide how to interpret manganese concentrations in your household water and whether further action is appropriate.
If you want to understand what area manganese measurements reveal about water quality
The U.S. Geological Survey has sampled groundwater in Whitman County’s aquifer 122CBRV, including measurements from seven wells ranging from 90 to 907 feet deep. Across 15 samples taken over a ten-year period, manganese was detected in 12 samples, with levels ranging from 2.62 to 118.0 micrograms per liter, and a median value near 54.35 micrograms per liter. None of these samples exceeded any federal manganese threshold.
It’s important to recognize that these figures represent area-wide findings, not the specific concentration in your household water. While the data provides a useful overview of manganese presence in the aquifer, individual wells can vary, and only testing your water directly will reveal your own manganese level.
If you need to read and understand a certified laboratory test report for manganese
A certified lab will report manganese concentration usually in micrograms per liter (ug/L). Their report may include the detected level, a reporting limit, and remarks on whether the constituent was below the detection threshold. Detected manganese means the lab instrument measured it; it is not a health violation or necessarily a problem. Understanding these results requires comparing them with federal guidelines and considering local area data. Knowing your specific manganese concentration helps determine if a treatment solution is needed.
If you observe specific household symptoms related to manganese presence
Manganese in water may cause stains on plumbing fixtures and laundry or impart a metallic taste. However, these signs can also originate from other causes. If your household experiences these issues consistently, it could indicate manganese presence worthy of further investigation. Absence of such signs does not guarantee manganese is absent or at low levels.
If you prepare information before discussing treatment options
- Record your water source type (well, municipal, etc.)
- Note the date and depth of your well if applicable
- Keep a copy of your certified lab test report
- Document any household symptoms or concerns related to water quality
This information will help evaluate if manganese treatment is appropriate for your situation.
If your well depth or source characteristics vary from sampled wells
The USGS samples in this area span from shallow to deep wells (90 to 907 feet), and manganese levels can vary with depth and aquifer layers. If your well differs significantly in depth or draws from a different source, manganese concentrations might also differ. Considering your well characteristics alongside area data and lab results gives a clearer picture of your water’s manganese profile.
In summary, area manganese measurements in Whitman County provide helpful context but do not specify your household level. Obtaining a certified lab test and noting household factors guide your decision on treatment. To address manganese-related water issues, the C-Series Black Manganese Stains Filter ships ready to configure and is designed specifically to reduce manganese stains and improve water quality.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2024-08-07. 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 Manganese in the 122CBRV aquifer (Whitman County): 15 results from 7 wells, median 54.35 ug/L, range 2.62-118.0 ug/L; none above any federal threshold