Water Quality in the Kanab Plateau 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 6.3-7A.  Impaired lakes and streams with site type, name, length of impaired reach, area of impaired lake, designated use standard and parameter(s) exceeded is shown in Table  6.3-7B.  Figure 6.3-10 shows the location of water quality occurrences keyed to Table 6.3-7.  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 6.3-7A.

• Eight wells or springs have parameter concentrations that have equaled or exceeded drinking water standards.

• The parameter most frequently equaled or exceeded in the sites measured was total dissolved solids.  Other parameters equaled or exceeded are lead and nitrates.

Lakes and Streams with Impaired Waters

• Refer to Table 6.3-7B and Figure 6.3-10

• The water quality standard for suspended sediment concentration was exceeded in one 29-mile stream reach, the Paria River from the Utah border to the Colorado River.  A portion of this impaired reach is located in the Paria Basin.

• This reach is not part of the ADEQ water quality improvement effort called the Total Maximum Daily Load (TMDL) Program at this time. 

Effluent Dependent Reaches

• Refer to Figure 6.3-10
• There is one effluent dependent reach in this basin, Transect Canyon.  This reach receives effluent from the North Rim Wastewater Treatment Plant.

Click for Figure 6.3-10 Kanab Plateau Basin

Water Quality Conditions

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