This week, commercial operators in Umatilla County must decide how to address soap lather problems affecting entire buildings rather than single outlets. Knowing the regional water characteristics can help guide that decision.
How Water Hardness Enters Groundwater in Umatilla County
Mineral Content in Aquifer 122GDRD
Water hardness in this area arises mainly from calcium and magnesium dissolved as water passes through geological formations underground. These minerals accumulate in the aquifer, influencing water quality at its source.
Groundwater Flow and Mineral Pickup
As groundwater moves through soils and rocks, it picks up varying amounts of calcium and magnesium, which contribute to hardness. Local mineral composition is a key factor in this process.
Variation by Sampling Depth and Source Characteristics
Sample Depths Reflect Aquifer Diversity
Collected samples from wells between 80 and 1725 feet deep show a range of hardness values. Deeper wells may access different strata with distinct mineral profiles, influencing hardness concentration.
Well Type and Water Hardness Expectation
Both shallow and deep wells in this aquifer contain measurable hardness, so commercial buildings drawing from any source in the area should consider that hardness is relevant across the board.
Understanding Aesthetic Secondary Standards Versus Health Limits
Aesthetic Effects on Soap Lather
Calcium and magnesium cause soap to react differently, reducing lather and making cleaning more difficult. This is a common aesthetic issue linked to hardness, not a health hazard.
Regulatory Context for Hardness Levels
Government records show all sampled wells in this area have hardness below any federal health-based thresholds. Hardness relates to water quality taste and appearance but does not pose safety concerns.
Evaluating Treatment Capacity for Commercial Needs
Daily Water Demand in Commercial Buildings
Commercial facilities use significantly more water than households, requiring water treatment equipment with high grain capacity to manage hardness effectively across the entire building.
Nelsen 210,000 Grain Mineral-Tank Commercial Water Softener
This product offers substantial capacity tailored for whole-building treatment, addressing hardness-related soap lather challenges at scale. It ships ready to configure for commercial plumbing systems.
Sample Size and Data Reliability
Sample Count and Well Distribution
The hardness data comes from four separate wells sampled over a two-year period, providing a snapshot of aquifer conditions but not a comprehensive survey of every well in the area.
Implications of Limited Sampling
While useful for regional insights, these four samples cannot define conditions at any specific well or building. Individual water testing is necessary for precise treatment planning.
What You Should Not Conclude
The regional data does not indicate that every well in Umatilla County has the same level of hardness or that it presents a health risk. Detecting hardness is typical and poses no safety violations. Only a test of your building’s water can confirm its hardness level and the extent of soap lather issues you may experience.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2018-09-19. 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 122GDRD aquifer (Umatilla County): 4 results from 4 wells, median 100.0 mg/L, range 60.3-143.0 mg/L; none above any federal threshold