Arizona Department of Water Resources
http://www.azwater.gov/dwr/Conservation/

City of Scottsdale
http://www.scottsdaleaz.gov/water.asp

City of Chandler
http://www.chandleraz.gov/default.aspx?pageID=369

City of Glendale
http://www.glendaleaz.com/WaterConservation/landscaperebates.cfm