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

Sites with parameter concentrations that have equaled or exceeded drinking water standard(s) (DWS), including location and parameter(s) are shown in Table 3.14-7A.  There are no data on impaired lakes and streams in this basin.  Figure 3.14-9 shows the location of exceedences keyed to Table 3.14-7A.  All community water systems are regulated under the Safe Drinking Water Act and treat water supplies to meet drinking water standards.  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.   Information on contamination sites in the basin is in Section 3.0.6 Water Supply - Contamination Sites.

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

  • Seventy-three sites have parameter concentrations that have equaled or exceeded DWS. 

  • Frequently equaled or exceeded parameters include arsenic and fluoride.

  • Other parameters equaled or exceeded in the sites measured in this basin were  radionuclides, nitrates, lead, beryllium, antimony and total dissolved solids.

Click to view Table 3.14-7

Click to view Table 3.14-7 Water Quality Exceedences in the Willcox Basin

Click to view Figure 3.14-9

Click to view Figure 3.14-9 Willcox Basin

Water Quality Conditions

 

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