Fleck Nitrate & Nitrite (Well) Filter

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What Government Data Shows About Nitrate Levels

Median and Range of Nitrite Concentrations

The U.S. Geological Survey sampled groundwater wells in Middlesex County aquifer 112SRFD between 2010 and 2019. Results showed nitrite detected in 6 out of 42 samples, with a median concentration of 0.007 mg/L and a range spanning 0.001 to 0.031 mg/L. These samples came from wells ranging 19 to 93 feet deep.

No Federal Threshold Exceeded

Importantly, none of these results exceeded federal nitrate or nitrite thresholds. Detection alone does not imply a violation or an unsafe water supply under federal rules.

Detection Versus Concentration Limits

Detecting nitrite means the substance was measured by instruments. Detection is not synonymous with a problem unless concentrations surpass regulatory standards, which the local data does not indicate.

Additional Considerations for Commercial and Industrial Users

Stricter Monitoring Expectations

Commercial and industrial water users often must meet additional regulatory and operational standards for nitrate and nitrite, beyond household thresholds.

Process Impact and Compliance

Industry users typically analyze how nitrate impacts manufacturing processes or regulatory compliance, requiring more frequent or specialized testing than household water use.

Interpreting the Data as a Middlesex County Homeowner

Understanding Median and Range

The median nitrite level of 0.007 mg/L means half the samples were below and half were above this value. The highest result, 0.031 mg/L, remains well under federal limits, suggesting nitrate presence at low levels in the regional aquifer.

Application to Your Well

These area-wide measurements provide context but cannot substitute for specific testing of your own household water to determine actual nitrate levels.

Differences Between Public-System Records and Private Wells

Scope of Sampling

Government sampling reflects regional groundwater conditions but does not directly measure individual private wells.

Private Well Testing as Essential Step

Only a test of your own well water can confirm nitrate concentrations and help decide on treatment needs, especially if existing equipment has stopped functioning.

Fixtures and Appliances Most Affected First

Water Used for Cooking and Drinking

Nitrate presence is primarily a concern for water consumed by people, so kitchen taps and drinking water sources are first in line to watch.

Childcare and Infant Formula Preparation

Infants are more sensitive to nitrate, making water used for formula preparation a critical focus area.

Seasonal and Multi-Year Trends in Middlesex County

Sampling Dates and Observed Range

The data covers nearly a decade, from May 2010 to September 2019, capturing seasonal and multi-year fluctuations in nitrite levels.

Consistency in Low-Level Detection

Despite variations, detected concentrations stayed below federal thresholds across all samples, indicating no significant spikes in nitrate over time.

Recommended Next Step for Households

Because regional data cannot specify your water quality, the essential step is to have your household water tested for nitrate and nitrite concentrations. A test result below federal guidelines would confirm no immediate concern. If levels are elevated, the Fleck Nitrate & Nitrite (Well) Filter ships ready to configure for residential use, providing a documented solution to reduce these constituents in well water.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2019-09-26. 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 112SRFD aquifer (Middlesex County): 42 results from 10 wells, median 0.007 mg/L, range 0.001-0.031 mg/L; none above any federal threshold