Fleck Nitrate & Nitrite (Well) Filter

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If you see nitrate detected and worry about safety, understand what the local data really means

Nitrate is a compound naturally found in soil and water, often influenced by agricultural activities and natural processes. In Richmond County's aquifer 211MDVL, government groundwater sampling recorded nitrate in all 152 samples taken from 13 wells over a 15-year period. The median nitrate concentration was 1.455 mg/L, with individual values ranging from 0.064 mg/L to 12.9 mg/L. Importantly, only one sample exceeded the federal maximum contaminant level (MCL) of 10.0 mg/L, a health-based regulatory threshold. Detection of nitrate is common and does not by itself signify a problem. Understanding this data helps avoid misinterpretations that could cause unnecessary concern.

If your local water quality report gives a median and range on nitrate, here is how to read it

The median value of 1.455 mg/L nitrate represents the midpoint of all samples from the aquifer, meaning half were higher and half lower. The range shows the highest and lowest nitrate concentrations measured in those 13 wells sampled at depths between 100 and 455 feet. This regional data reflects conditions in the aquifer over multiple years but does not pinpoint what is in any specific household well or tap. Your water could have nitrate levels anywhere within or even outside this range. Testing your own water is the only way to know your exact nitrate concentration.

If your plumbing is older or uses specific materials, this does not change nitrate levels from the source

Nitrate enters your water supply from the groundwater source itself rather than from plumbing components. The materials and age of pipes can affect water quality in other ways, such as leaching metals or causing discoloration, but they do not generate or increase nitrate content. Therefore, comparing nitrate measurements should focus on source water, not plumbing differences.

If you want to compare nitrate levels between Richmond County and a neighboring area, avoid assuming identical risks

Each county or region draws from different groundwater systems that can vary widely in nitrate levels due to geology, land use, and well characteristics. For example, nitrate ranges and medians from a neighboring county may be higher or lower based on sampling scope and aquifer conditions. Using Richmond County’s aquifer 211MDVL data alone avoids overgeneralization. Confirming your water source and local sampling results is necessary before drawing comparisons.

If you consider nitrate treatment, how should you evaluate capacity relative to your household’s demand?

Effective nitrate removal depends on matching treatment capacity with the daily volume of water used. Households with higher water consumption require systems designed to process larger amounts without performance loss. The Fleck Nitrate & Nitrite (Well) Filter is engineered to reduce nitrate and nitrite levels and can ship ready to configure. Knowing your household water use, including peak and average daily consumption, helps select treatment capacity that maintains water quality consistently.

If you rely on public water records versus private well tests, here is what each reveals about nitrate

Public water system records usually report compliance testing results from source water or distribution points and cover large populations over time. These records indicate general regional nitrate conditions and regulatory status but may not reflect individual household water chemistry. Private well testing provides specific information about your tap water but requires sampling by a certified laboratory. Both sources are valuable; public records identify regional trends, while private tests confirm your actual home water quality.

To resolve any questions about nitrate in your household water, the critical step is to order a laboratory test specifically measuring nitrate concentration in your own water supply. A result below 10.0 mg/L confirms compliance with the federal health-based standard and indicates nitrate levels are within the range found in Richmond County's aquifer 211MDVL. If levels exceed this threshold, considering treatment options such as the Fleck Nitrate & Nitrite (Well) Filter can help manage nitrate effectively.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2025-07-10. 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 Nitrate in the 211MDVL aquifer (Richmond County): 152 results from 13 wells, median 1.455 mg/L, range 0.064-12.9 mg/L; 1 above a health-based federal MCL (federal MCL 10.0 mg/L)