Government groundwater sampling in Bonner County's aquifer 112OTSH shows a consistent presence of hardness minerals across multiple wells. Specifically, hardness measured as calcium and magnesium ranged from 16.8 to 284.0 mg/L with a median of 107.85 mg/L in ten samples taken from 67 to 360 feet deep, collected between mid-2010 and late 2011. None of these results exceeded federal health-based thresholds, but they provide insight into the potential mineral content residents may encounter.
If You Want to Narrow Down the Cause of Water Issues Cheaply and Reliably
Start by inspecting visible signs such as staining on plumbing fixtures or difficulty achieving soap lather, which suggest hardness or iron presence. Follow up by checking for plumbing system irregularities like corrosion or accumulation of mineral deposits that might mimic source water problems. If these preliminary steps do not clarify the source, obtain certified laboratory testing focused on iron and hardness concentrations specific to your household water to confirm the issue and its magnitude.
If Your Home Has Older or Different Plumbing Materials
Plumbing material and age affect water quality perception independently from the source. Iron can originate from corroded iron pipes or fittings, and hardness minerals might accumulate in scaling within pipes. This means that some discoloration or mineral buildup may not reflect aquifer water content directly but rather interactions inside your plumbing. Addressing plumbing-related contributions helps isolate what treatment your water really needs.
If Iron or Hardness Problems Are Ignored for Years
Long-term untreated hardness can lead to scale buildup inside pipes and appliances, reducing flow efficiency and lifespan. Iron, if present in measurable amounts, may cause staining on laundry and fixtures or contribute to metallic taste. While not a health hazard at the levels found in the sampling, these effects can cause inconvenience and may increase maintenance needs.
If Your Well or Source is Particularly Deep or Shallow
Sampled wells in Bonner County ranged from 67 to 360 feet deep. Generally, deeper wells might show different mineral profiles due to geological layers penetrated, possibly affecting hardness and iron levels. Understanding your own well’s depth provides context but does not substitute for direct testing of your water, as variability is common even within an aquifer.
If Your Residence is Large, a Secondary Home, or Seasonal
Larger households may experience greater impact from hardness scale and iron accumulation due to higher water usage, making water quality management more critical. Secondary or seasonal homes should consider system readiness for intermittent use, as scale buildup or iron deposits might behave differently with prolonged periods of stagnation.
If You Are Considering Technology to Treat Iron and Hardness
The Fleck Iron + Hard Water System offers a documented approach to reduce both iron and hardness minerals from well water. This technology utilizes a 32,000-grain capacity system designed to neutralize these constituents effectively. It ships ready to configure for residential water-treatment needs, providing a solution suitable for households encountering these common water quality challenges.
The U.S. Geological Survey's record for Bonner County aquifer 112OTSH encompasses 10 groundwater samples spanning depths of 67 to 360 feet taken between 2010 and 2011. None of the measurements exceeded federal health thresholds. For more detailed information, refer to the U.S. Geological Survey groundwater monitoring data for this region.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2011-09-06. 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 Hardness, Ca, Mg in the 112OTSH aquifer (Bonner County): 10 results from 10 wells, median 107.85 mg/L, range 16.8-284.0 mg/L; none above any federal threshold
- ✓ 90-Day Money-BackNo restocking fees — return within 90 days.
- ✓ Manufacturer WarrantyGenuine Fleck · Pentair · VIQUA equipment.
- ✓ Free Expert SizingTalk to a specialist and buy the right system the first time.

