Sites with parameter concentrations that have equaled or exceeded drinking water standard(s) (DWS), including location and parameter(s) are shown in Table 4.3-6A. There are no impaired lakes or streams in this basin. Figure 4.3-9 shows the location of exceedences keyed to Table 4.3-6. 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 4.3-6A.
- Twenty-three sites have parameter concentrations that have equaled or exceeded DWS.
- The most frequently equaled or exceeded parameters was arsenic.
- Other parameters equaled or exceeded in the sites measured in this basin were radionuclides, nitrates, lead and total dissolved solids.