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Nitrate Contamination Potential in Arizona Groundwater: Implications for Drinking Water Wells

By:
Kristine Uhlman
Janick F. Artiola
Arizona's arid environment and aquifer types allow for the persistence of nitrate contamination in ground water. Agricultural practices and the prevalence of septic systems contributes to this water quality concern, resulting in nitrate exceeding the EPA Maximum Contaminant Level (MCL) in several locations across the state. Working with known nitrate concentrations in 6,800 wells across the state, this fact sheet presents maps showing the probability of nitrate contamination of ground water exceeding the MCL. The importance of monitoring your domestic water supply well for nitrate is emphasized.
This fact sheet is to be taken from research conducted by Uhlman and Rahman and published on the WRRC web site as: "Predicting Ground Water Vulnerability to Nitrate in Arizona". Funded by TRIF and peer reviewed by ADEQ. It also follows on "Arizona Well Owner's Guide to Water Supply" and also "Arizona Drinking Water Well Contaminants" (part 1 already submitted, part 2 in process).
PDF icon AZ1536
Keywords:
  • drinking water
  • nitrate
  • water wells
  • ground water
  • water sampling
  • Arizona
  • nitrate probability map
Publication Date:
July 2011
AZ1536
Pages:
4 pp.

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