Arizona Department of Water Resources (ADWR)
http://www.adwr.state.az.us

Arizona Meteorological Network (AZMET)
http://ag.arizona.edu/azmet

Arizona Municipal Water Users Association (AMWUA)
http://www.amwua.org

Arizona Nursery Association (ANA)
http://www.azna.org

Central Arizona Project (CAP)
http://www.cap-az.com

Salt River Project (SRP)
http://www.srpnet.com

University of Arizona
http://ag.arizona.edu/waterquality/WaterQualityIndex.htm

University of Arizona - Maricopa County Cooperative Extension
http://ag.arizona.edu/maricopa/garden

University of Arizona - Pima County Cooperative Extension Low 4 Program
http://ag.arizona.edu/pima/low4

University of Arizona Water Resources Research Center
http://ag.arizona.edu/azwater

Water Wiser - The Water Efficiency Clearing House
http://www.waterwiser.org