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Private Well Nitrate Data

Modeled Groundwater Nitrate-N Concentration from Private Wells Data

Nitrate levels in water samples from private wells vary between New Mexico counties and even within the same county. In general there appears to be higher nitrate levels in the western and southeastern portions of New Mexico counties based on the data that are available. The map below demonstrates this.

The groundwater system in New Mexico is very complex. This complexity can lead to large nitrate concentration variability even amongst neighboring wells. Therefore you need to have your own well tested to know the nitrate concentration in your water. The safe drinking water concentration for nitrate-nitrogen (nitrate-N) is 10 mg/L and some of the water samples from wells around the state exceed this standard.

pdf Modeled Groundwater Nitrate-N Concentration from Private Wells Data (653.0 KB)

Average Nitrate-N Concentration by County

Average nitrate levels in water samples from private wells vary between New Mexico counties. The highest nitrate levels are in Chaves County based on the data that are available. The groundwater system in New Mexico is very complex.

The groundwater system in New Mexico is very complex. This complexity can lead to large nitrate concentration variability even amongst neighboring wells. Therefore you need to have your own well tested to know the nitrate concentration in your water. The safe drinking water concentration for nitrate-nitrogen (nitrate-N) is 10 mg/L and some of the water samples from wells around the state exceed this standard. Checking these yearly is a good indicator if your water quality has degraded. This may mean your well casing has cracked or your water has been polluted by animal or human waste. The best time to test is in late summer.

pdf Average Nitrate-N Concentration by County (276.0 KB)

Percentage of Samples Exceeding EPA Standard

Nitrate levels in water samples from private wells vary between New Mexico counties and even within the same county. The counties with the highest percentage of samples that exceed the EPA safe drinking water standard are Chavez and Socorro counties based on the data that are available. The map below demonstrates this.

The groundwater system in New Mexico is very complex. This complexity can lead to large nitrate concentration variability even amongst neighboring wells. Therefore you need to have your own well tested to know the nitrate concentration in your water. The safe drinking water concentration for nitrate-nitrogen (nitrate-N) is 10 mg/L and some of the water samples from wells around the state exceed this standard. Checking these yearly is a good indicator if your water quality has degraded. This may mean your well casing has cracked or your water has been polluted by animal or human waste. The best time to test is in late summer.

pdf Percentage of Samples Exceeding EPA Standard (263.9 KB)

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Content updated: Thu, 19 May 2016 20:56:00 MDT