Government groundwater sampling in Gloucester County’s aquifer 121CKKD found radium-224 in all tested wells, with measurements ranging from 0.03 to 16.8 picocuries per liter (pCi/L) and a median of 1.865 pCi/L across 38 samples from 31 wells sampled between 2010 and 2018.
Radium-224 Range Versus Federal Standards: What It Means and Doesn’t
Every sample detected radium-224, but none exceeded federal limits
No radium-224 level in Gloucester County samples surpassed any federal threshold, indicating compliance with health-based standards.
A detection signals presence, not a safety violation
Detection means instruments measured radium-224; it does not imply unsafe water or regulatory breach.
The range shows variability by well depth and location
Levels varied from near trace amounts (0.03 pCi/L) to mid-range values (16.8 pCi/L), reflecting natural differences in groundwater chemistry.
Seasonal and Multi-Year Variability Observed
Sampling occurred from August 2010 through September 2018
Long-term sampling captures fluctuations across seasons and multiple years.
Radium-224 concentrations showed notable range during sampling period
Variation suggests that water quality can change over time even within the same area and aquifer.
Well depths ranged from 17 to 162 feet
Depth influences radium presence; deeper wells may have different concentrations than shallower ones.
Information to Collect Before Seeking Treatment Solutions
Obtain a current, well-specific water test from an accredited lab
Local testing confirms your household’s radium-224 concentration and other relevant parameters.
Note well construction and depth details
This information helps interpret your test results and treatment needs.
Record average daily water use for your household
Daily consumption data is useful in sizing a treatment system.
Evaluating Treatment Capacity Against Household Demand
The Pentair Uranium & Radium System offers a grain capacity of 32,000
Its capacity supports removal of uranium and radium from typical residential water volumes.
Match system capacity to your water use to avoid premature saturation
Estimating daily and cumulative contaminant load guides appropriate treatment sizing.
Household Fixtures and Appliances Most Affected Initially
Water closets, faucets, and showers contact water directly and first
Mineral accumulation or staining may appear earliest at these points.
Water-using appliances can experience performance impact over time
Softening uranium or radium-related deposits helps preserve appliance function.
Distinguishing Aesthetic Secondary Standards from Health-Based Limits
Aesthetic standards focus on taste, staining, or corrosion effects
They do not define safety or health violations.
Radium-224 federal limits are health-based and strictly enforced
Sampling data shows Gloucester County wells are below these health thresholds.
Understanding the difference helps avoid unnecessary concern
Recognize that exceeding an aesthetic guideline does not indicate health risk.
Important: Area-wide sampling data provides useful background but does not predict exact radium levels in your well. Only testing your household water can identify your specific conditions and inform treatment needs. The Pentair Uranium & Radium System ships ready to configure, offering a proven solution when elevated uranium or radium is confirmed by laboratory analysis.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2018-09-04. 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 Radium-224 in the 121CKKD aquifer (Gloucester County): 38 results from 31 wells, median 1.865 pCi/L, range 0.03-16.8 pCi/L; none above any federal threshold
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