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Securing Arizona's Water Future
Water Quality in the Harquahala Basin

Wells, springs and mine sites with parameter concentrations that have equaled or exceeded drinking water standard(s), including location and parameter(s) are shown in Table 7.3-6A.  There are no impaired lakes or streams in this basin. Figure 7.3-8 shows the location of water quality occurrences keyed to Table 7.3-6.  Not all parameters were measured at all sites; selective sampling for particular constituents is common.  A description of water quality data sources and methods is found in Volume 1, Appendix A. 

Well, Mine or Spring sites that have equaled or exceeded drinking water standards (DWS)

  • Refer to Table 7.3-6A.
  • Eighty-two wells have parameter concentrations that have equaled or exceeded drinking water standards.
  • The most frequently equaled or exceeded the parameter was fluoride. 
  • Other parameters equaled or exceeded include arsenic, lead, chromium, total dissolved solids and nitrates.

Click here for Table 7.3-6

Table 7.3-6 Water Quality Exceedences in the Harquahala Basin

Click here for Figure 7.3-8

Figure 7.3-8 Harquahala Basin Water Quality Conditions

 

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References and Supplemental Reading for the Harquahala Basin

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Automated well
Power Plant in Harquahala Basin