What the Measured Range Means Against Federal Standards and What It Does Not Mean
Government sampling in Douglas County's aquifer N100BSNRGB found hardness in the range of 15.1 to 311.0 mg/L
This range comes from 161 test results across 11 wells sampled between 2010 and 2026, with a median concentration of 136.0 mg/L. None of these readings exceed any federal threshold, which means the water hardness levels measured do not indicate a regulatory violation or safety concern.
Detection everywhere in sampled wells is not a direct indication of your home's specific water quality
While all samples detected hardness, this reflects conditions in the local aquifer wells, not a direct measurement of your own household water. Personal water quality requires testing your specific source.
What a Certified Laboratory Test for Hardness Reports and How to Read It
Lab tests report hardness as milligrams per liter (mg/L), reflecting calcium and magnesium content combined
Understand the numeric value to assess how much hardness your water contains. Values around 136 mg/L as median suggest moderately hard water, but your reading may vary significantly.
Tests do not indicate water safety issues, only hardness concentration affecting scale and soap efficiency
Hardness is an aesthetic and operational characteristic, affecting scale buildup and soap performance rather than health. Interpret your lab report accordingly.
How Public-System Records Differ from Private-Well Testing in What They Establish
Public supply water records reflect aggregated testing that ensures compliance with health-based standards
Records like the USGS sampling provide area-wide data useful for general understanding but cannot replace the precise information from your private well test.
Private well testing is required to determine your water's exact hardness and treatment needs
Test your home's water source to understand your specific hardness level and plan treatment accordingly.
The Role of Plumbing Material and Age, Separate from the Source Water
Older plumbing can contribute to water quality perceptions unrelated to source hardness
Corrosion or buildup in pipes may affect taste, color, or scale deposits independently of water hardness.
Upgrading plumbing materials does not reduce hardness but can impact water experience at the tap
Address plumbing condition separately from hardness treatment for optimal household water quality.
How the Documented Treatment Technology Removes or Neutralizes the Constituent
The Fleck Hard Water — Large Home System uses ion-exchange technology to reduce hardness minerals
This system softens water by exchanging calcium and magnesium ions with sodium or potassium ions, effectively reducing scale and improving water feel and soap effectiveness.
This configuration minimizes downtime during regeneration cycles, maintaining consistent water quality.
How the Treated Water Differs at the Tap Once the Documented Technology Is in Place
Softened water feels smoother and reduces scale buildup on fixtures and appliances
Expect less soap scum and improved lathering, making cleaning tasks easier.
Water treated by the Fleck System is easier on plumbing and extends the lifespan of water-using appliances
Reduced hardness protects pipes and equipment from mineral deposits.
For homeowners in Douglas County with water hardness concerns, the Fleck Hard Water — Large Home System ships ready to configure and can match the demand identified through your water testing to deliver effective hardness control.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-03-18. 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 N100BSNRGB aquifer (Douglas County): 161 results from 11 wells, median 136.0 mg/L, range 15.1-311.0 mg/L; none above any federal threshold

