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Securing Arizona's Water Future
Water Quality in the Western Mexican Drainage 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 7.10-5A.  There are no impaired lakes or streams in this basin. Figure 7.10-9 shows the location of water quality occurrences keyed to Table 7.10-5.  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 7.10-5A.
  • Six wells have parameter concentrations that have equaled or exceeded drinking water standards.
  • The parameter for fluoride was equaled or exceeded in all wells.  Other parameters equaled or exceeded include arsenic and lead.

Click here for Table 7.10-5

Table 7.10-5 Water Quality Exceedences in the Western Mexican Drainage Basin

Click here for Figure 7.10-9

Figure 7.10-9 Western Mexican Drainage Basin Water Quality Conditions

 

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