What nitrate concentration can I expect in Cumberland County household water, and how should I decide between treatment options? Government data from local aquifer sampling shows a measurable range and median that homeowners can use as a guideline for testing and treatment decisions.
Understanding Median and Range Values for Nitrate in Cumberland County's Aquifer
Median nitrate shows typical concentration in sampled wells
The US Geological Survey sampled 11 wells in Cumberland County's aquifer 112ICCC from 2010 through 2017. For nitrite, closely chemically related to nitrate, the median measured concentration was 0.0195 mg/L with a range from 0.001 to 0.248 mg/L. These results indicate that within this area aquifer, nitrite is generally found at very low levels, with some variability across different wells.
Range reflects variability but no federal threshold was exceeded
The highest nitrite detection in the sampled wells was 0.248 mg/L, well below federal limits for drinking water. None of the 98 results from these 11 wells indicated nitrite levels exceeding regulatory health-based thresholds, indicating the aquifer’s nitrite presence is low enough to meet safety standards at the time of sampling.
What Seasonal and Multi-Year Sampling Reveals About Nitrate Levels
Aquifer sampling spanned 2010 to 2017 showing long-term trends
Data collected over more than seven years and multiple seasons show consistent low-level detections without spikes beyond the range stated. This suggests nitrate and nitrite concentrations in the aquifer remain relatively stable over time, but individual household wells could vary due to localized conditions not captured by the broad survey.
Some samples had nitrite below detection limits
Out of 98 sample measurements, 68 were below the reporting limit, meaning nitrite was not quantifiable in those samples. This emphasizes the variability in detection and the importance for households to conduct their own water tests to assess specific local nitrate and nitrite levels.
What Varies for Large Households, Second Homes, or Seasonal Properties
Water use frequency influences detection and treatment needs
Larger households or properties with intermittent use may experience different indoor water quality due to factors like water stagnation or varied consumption patterns. This can impact nitrate and nitrite service levels and treatment timing.
Seasonal homes may need specific water testing before use
Properties occupied seasonally should test water before each use period because groundwater chemistry, including nitrate-related compounds, can fluctuate seasonally or during dormancy.
How Well Depth and Water Source Type Affect Nitrate Expectations
Sampled wells ranged from 20 to 132 feet deep
The USGS data covers a wide depth range, demonstrating that nitrate concentrations at different depths within this aquifer are generally low but can vary. Deeper wells do not necessarily mean higher or lower nitrate, so well depth alone should not replace water testing.
Groundwater from aquifers like 112ICCC can contain nitrate from natural and human sources
Nitrate enters groundwater from agricultural runoff, septic systems, and natural soil processes. Its presence depends on local land use and geochemistry rather than well depth alone.
Which Household Appliances and Processes Are Most Affected First
Water used for drinking and cooking is most sensitive to nitrate levels
Nitrate and nitrite impact taste and safety considerations primarily in consumption. Knowing nitrate concentration helps prioritize treatment for faucets and appliances used for drinking or cooking.
Other water uses like laundry and bathing are less immediately affected
While nitrate presence can influence water quality, aesthetic impacts like taste or staining are less relevant for washing clothes or bathing.
What to Record Before Discussing Treatment Options
Test your own water for nitrate, not just rely on area data
Because nitrate levels vary by individual well or system, it is essential to obtain a current, local water test that specifies nitrate and nitrite levels before making treatment choices.
Note household size, water use patterns, and well depth
Record information about household consumption, seasonal occupancy, and your well’s characteristics. This contextual data supports selecting appropriate water treatment technology.
Choosing between treatment strategies depends on understanding your local nitrate presence and household needs. The Fleck Nitrate & Nitrite (Well) Filter ships ready to configure and provides a documented method for reducing these compounds in residential water. Armed with your test results and household context, you can decide confidently how to address nitrate treatment in your home.
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 Nitrite in the 112ICCC aquifer (Cumberland County): 98 results from 11 wells, median 0.0195 mg/L, range 0.001-0.248 mg/L; none above any federal threshold
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