What 'detected', 'median' and 'range' Mean in the Sampling Record on This Page
In the U.S. Geological Survey sampling for wells in Kent County's aquifer 125RCCS, water hardness was measured in 12 separate wells. The term 'detected' means that hardness levels were found above the instruments' reporting limits in 11 of these wells; one well showed hardness below that limit. The 'median' value of 134.0 milligrams per liter (mg/L) represents the middle point of the sampled hardness results, while the 'range' from 50.1 to 154.0 mg/L shows the spread between the lowest and highest measurements among the wells. These figures provide an overview of the water characteristics in this aquifer zone but do not specifically indicate any individual household's water quality.
A Worked Example: Reading the Record's Median and Range as a Homeowner Would
As a homeowner considering the hardness of your water, the median hardness level of 134.0 mg/L suggests moderate to hard water is typical in the sampled region. The range indicates some wells have softer water near 50 mg/L, while others reach higher hardness near 154 mg/L. Since these values come from deep wells between 180 and 380 feet, your home's water hardness may fall anywhere within this spread or beyond, depending on its specific source. No result exceeded any federal threshold for hardness, meaning these figures reflect typical regional variation rather than health or legal violations.
The Role of Plumbing Material and Age, Separate from the Source Water
Plumbing materials such as galvanized steel, copper, or PVC, and their age, can influence how iron and hardness appear in household water. Older pipes might contribute trace amounts of iron from corrosion, and scale buildup from hardness minerals can accumulate over time, affecting water taste, flow, and appliance lifespan. These plumbing factors act independently from the raw water's mineral content in the aquifer and can complicate the homeowner's experience separate from source water chemistry.
What a Certified Laboratory Test for This Constituent Reports and How to Read It
To determine your home's exact water hardness and iron levels, a certified laboratory can analyze a water sample from your tap or well. Such tests provide specific concentrations of calcium and magnesium ions contributing to hardness, typically reported in mg/L or grains per gallon, alongside iron levels. Understanding these results requires comparing them against regional baselines like those from the U.S. Geological Survey and considering any plumbing influences. These quantitative results help to decide appropriate treatment needs precisely.
What Changes for a Large Household, a Second Home, or a Seasonal Property
Household size and usage patterns impact the scale of water treatment needed. Larger families or homes with greater daily water consumption may require equipment with higher capacity to treat iron and hardness effectively. Seasonal or second homes may have less frequent water use, allowing for different management strategies such as periodic system regeneration. These lifestyle factors dictate how treatment systems should be selected and maintained to match actual household demands while addressing water quality.
How to Compare This Area's Record with a Neighboring County's Without Overreading It
Comparing water hardness data between Kent County's aquifer 125RCCS and nearby counties requires caution. Variations in geology, well depth, and sampling methods can create differences that do not necessarily reflect superior or inferior water quality. It is important to use these figures as regional guides, not direct predictors of your own water. Additionally, water treatment decisions should rely primarily on your home's specific test results rather than broad area comparisons.
To address iron and hardness effectively, the Pentair Iron + Hard Water System offers a documented solution with a capacity of 32,000 grains, tailored for household needs. This system ships ready to configure, simplifying direct purchase and integration with home water lines.
Ultimately, the single test to order is a certified laboratory analysis of your home's water sample measuring iron and hardness concentrations. Obtaining clear results from this test will settle uncertainties and guide whether a system like the Pentair Iron + Hard Water System is appropriate for your household's water treatment.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2015-08-20. 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 125RCCS aquifer (Kent County): 12 results from 12 wells, median 134.0 mg/L, range 50.1-154.0 mg/L; none above any federal threshold