How to Compare This Area's Record with a Neighboring County's Without Overreading It
Regional Data Specificity
The U.S. Geological Survey sampled groundwater in Cumberland County's aquifer 112ICCC, providing data from 49 chloride measurements across 11 wells. These findings are specific to Cumberland County and should not be assumed to directly reflect conditions in neighboring counties.
Range Versus Median for Perspective
The chloride measurements ranged from 2.3 to 228.0 mg/L, with a median of 23.6 mg/L, demonstrating variability within the county's aquifer but not indicating uniform conditions across all wells or regions.
Limitations in Cross-Region Interpretation
Comparing this regional data to nearby areas requires caution because local geology and groundwater flow can differ, affecting water quality independently from regional trends.
How Public-System Records Differ from Private-Well Testing in What They Establish
Public Sampling Represents Regional Trends
Government data from sampled wells provide an overview of water quality in the area aquifer but do not replace the need for private well owners to test their own water to know specific conditions.
Private Well Testing Is Essential for Individual Decisions
While regional data inform general expectations, individual wells may vary significantly in water quality parameters, making private testing the definitive source for treatment choices.
Detections Are Measurements, Not Safety Judgments
The presence of chloride in all samples simply confirms its detection; no federal threshold was exceeded in these samples, and detection alone is not a sign of safety risk.
How Sample Depth, Well Depth or Source Type Changes What a Reader Should Expect
Well Depth Range in Data
Samples were collected from wells 20 to 132 feet deep, reflecting a variety of groundwater depths in the aquifer, which can influence constituent levels and water characteristics.
Variation by Source Type
Different well constructions and depths may capture groundwater with diverse chemical profiles; private wells might tap different layers than those sampled, affecting water quality.
Expect Range in Constituent Levels
Because the sampled wells vary in depth and location, residents should anticipate some variability in their own water and not rely solely on the median values from public data.
How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means
Sampling Scope Details
The area's chloride data come from 49 sample results taken from 11 separate wells over a span of approximately seven years, providing a moderate dataset for regional assessment.
Sample Size Implications
While helpful for understanding general groundwater quality, the sample size is limited relative to all wells in Cumberland County, so individual well water could differ.
Continuous Monitoring Is Not Represented
The data were collected over multiple years but are snapshots rather than continuous monitoring, so short-term fluctuations may not be captured.
How Seasonal or Multi-Year Variation Shows in the Record (Dates and Ranges Given)
Sampling Period
Data span from August 31, 2010, to October 11, 2017, allowing observation of long-term trends rather than seasonally concentrated results.
Range Reflects Long-Term Variability
The chloride range from 2.3 mg/L to 228.0 mg/L over this period shows natural fluctuations that may occur with changing groundwater conditions over years.
Seasonal Effects Are Not Explicitly Isolated
The dataset does not separate seasonal influences, so individual wells may show seasonal changes not apparent in the aggregated data.
Why Aesthetic Secondary Standards Differ from Health-Based Limits, Applied to This Constituent
Chloride and Taste or Corrosion
Chloride levels influence taste and potential corrosion or staining in pipes and fixtures, making aesthetic considerations important for treatment decisions.
No Health-Based Exceedances in Regional Data
None of the samples exceeded any federal health-based thresholds, affirming that chloride detections here relate mainly to aesthetic and operational concerns rather than safety violations.
Testing Needed to Confirm Personal Water Quality
Because aesthetic secondary standards focus on comfort and equipment longevity, homeowners should test their own water to see if treatment like the Autotrol Total Well Chlorination System with 32000 grain capacity fits their needs.
What You Should Test Next
Ordering a comprehensive water quality analysis for your individual well is the single essential step. Measuring parameters including chloride will confirm your specific water condition and clarify whether treatment with a system like the Autotrol Total Well Chlorination System is appropriate.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2017-10-11. 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 Chloride in the 112ICCC aquifer (Cumberland County): 49 results from 11 wells, median 23.6 mg/L, range 2.3-228.0 mg/L; none above any federal threshold
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