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Securing Arizona's Water Future
Water Quality in the Parker 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 7.6-7A.  There are no impaired lakes or streams in this basin. Figure 7.6-9 shows the location of water quality occurrences keyed to Table 7.6-7.  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. 

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

  • Refer to Table 7.6-7A.
  • Fifty-two wells have parameter concentrations that have equaled or exceeded drinking water standards.
  • The parameter most frequently equaled or exceeded was nitrate.  Other parameters equaled or exceeded include arsenic, chromium, lead, fluoride and organics.

 

 

Click here for Table 7.6-7

Table 7.6-7 Water Quality Exceedences in the Parker Basin

Click here for Figure 7.6-9

Figure 7.6-9 Parker Basin Water Quality Conditions

 

 

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References and Supplemental Reading for the Parker Basin

Colorado River
Lower Colorado River Planning Area
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Imperial NWR
Parker Dam