Sites with parameter concentrations that have equaled or exceeded drinking water standard(s) (DWS), including location and parameter(s) are shown in Table 3.11-4A. There are no data on impaired lakes and streams in this basin. Figure 3.11-9 shows the location of exceedences keyed to Table 3.11-4A. 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)
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Click to view Table 3.11-4 Water Quality Exceedences in the San Bernardino Valley Basin

Click to view Figure 3.11-9 San Bernardino Valley Basin Water Quality Conditions |