Fleck Nitrate & Nitrite (Well) Filter

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What does the nitrate data from Lafayette Parish aquifer 112CHCTU tell me about my water?

The U.S. Geological Survey collected water samples from 31 wells in Lafayette Parish, within aquifer 112CHCTU, between 2011 and 2021. Across 112 measurements, nitrate was detected in 66 results, with concentrations ranging from 0.019 to 25.3 mg/L and a median value of 0.575 mg/L. Notably, three samples exceeded the federal maximum contaminant level (MCL) of 10.0 mg/L, which is the health-based federal guideline for nitrate concentration in drinking water.

These findings represent the area-wide groundwater quality but do not characterize your well or household water specifically. Testing your own water is essential to know your nitrate levels accurately, especially since your existing equipment has recently failed and may no longer address nitrate effectively.

How does nitrate enter groundwater or the water system in Lafayette Parish?

Nitrate typically enters groundwater through leaching from fertilizers, septic systems, animal wastes, and natural soil processes. In agricultural areas like parts of Lafayette Parish, fertilizer runoff can be a significant source. The local aquifer, ranging from 11 to 250 feet deep at sampled wells, can accumulate nitrate over time depending on land use and soil characteristics.

What initial checks should I do before pursuing laboratory tests for nitrate?

Start by reviewing your household water system's recent maintenance and functioning status since your current equipment is no longer operational. If you notice any changes in water taste or color, document these observations. Checking with your local water utility or health department may provide information about any recent regional test results or advisories. However, a laboratory test of your household water remains critical for precise nitrate measurement as government data only provides a regional background.

How do seasonal and multi-year variations in the nitrate record appear in Lafayette Parish's data?

The USGS data collected over a decade shows that nitrate levels in the local aquifer vary considerably from sample to sample, with some measurements nearing or exceeding the federal MCL and others remaining very low. This suggests nitrate concentrations can fluctuate over time, possibly influenced by precipitation cycles, agricultural activity seasons, and groundwater flow patterns. Regular testing captures these temporal changes more reliably than a single sample.

How do records from public water systems compare with private well testing when assessing nitrate?

Public water systems routinely monitor nitrate concentrations and typically maintain records demonstrating compliance with federal health standards. These records reflect the treated water delivered to consumers and may not directly indicate the raw groundwater quality. Private well owners should conduct independent testing to understand nitrate levels in untreated groundwater because distribution system treatments and dilutions can differ.

What additional questions would a commercial or industrial operator consider beyond household concerns?

Commercial and industrial users must assess nitrate levels in relation to specific process requirements, regulatory compliance, and potential impacts on equipment and product quality. They often need larger treatment capacities and more frequent water quality monitoring to manage fluctuations. For residential users, the focus is mainly on health implications and ensuring consistent safe drinking water.

What steps lead from understanding regional nitrate data to choosing treatment after equipment failure?

This page outlined the difference between regional nitrate data and your household situation, explained nitrate sources local to Lafayette Parish aquifer 112CHCTU, and recommended starting with basic checks before lab testing. Given the recorded presence and variability of nitrate in your area, testing your own water is the crucial next step. If treatment is needed, equipment such as the Fleck Nitrate & Nitrite (Well) Filter ships ready to configure and is designed specifically to address nitrate and nitrite in well water for residential use.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2021-07-22. 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 112CHCTU aquifer (Lafayette Parish): 112 results from 31 wells, median 0.575 mg/L, range 0.019-25.3 mg/L; 3 above a health-based federal MCL (federal MCL 10.0 mg/L)