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 7.5-6A. There are no impaired lakes or streams in this basin. Figure 7.5-8 shows the location of water quality occurrences keyed to Table 7.5-6. A description of water quality data sources and methods is found in Volume 1, Appendix A. Not all parameters were measured at all sites; selective sampling for particular constituents is common.
Well, Mine or Spring sites that have equaled or exceeded drinking water standards (DWS)
- Refer to Table 7.5-6A.
- Fifty-eight wells have parameter concentrations that have equaled or exceeded drinking water standards.
- The most frequently equaled or exceeded parameter was fluoride. Other parameters equaled or exceeded include arsenic, chromium, lead and nitrates.
Table 7.5-6 Water Quality Exceedences in the McMullen Valley Basin
Figure 7.5-8 McMullen Valley Basin Water Quality Conditions