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Arizona > Tucson > Environment and Nature

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Directory > Regional > U.S. States > Arizona > Cities > Tucson > Community > Environment and Nature


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  • Arid West Water Quality Research Project
    Created to address concerns that water quality criteria and standards developed under the Clean Water Act were not always appropriate for use in arid and semiarid areas of the western U.S.
    www.co.pima.az.us/wwm/wqrp
 



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