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Figure 7. Ground water quality classes for the Salt Lake Valley aquifer, Class 1A is high quality drinking water, Class 2 is acceptable drinking water, Class 3 is of limited use (non-potable) and Class 4 is saline (non-potable). Source: Yidana, S.M., Lowe, M. and Emerson, R.L. (2010) Wetlands in Northern Salt Lake Valley, Salt Lake County, Utah – An evaluation of threats posed by groundwater development and drought. Report of Investigation 268, Utah Geological Survey, Utah Department of Natural Resources, p. 11
Originally uploaded in Integrate:Teaching for Sustainability:InTeGrate Modules:Water Science and Society:Student Materials.

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Source: Utah Department of Natural Resources
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