Water Harvesting Ordinances

Commercial Rainwater Harvesting

City of Tucson ordinance mandating that commercial developments provide at least 50% of their irrigation needs with harvested rainwater.
https://codelibrary.amlegal.com/codes/tucson/latest/tucson_az_udc/0-0-0-10610

Residential Greywater Stub-Outs

City of Tucson ordinance mandating that all new home construction includes gray water stub-outs at time of building. Stub-outs are sections of drainage pipe installed during construction which allow for convenient and inexpensive redirection of household greywater to the landscape at a later time once the stub-out pipes are connected to the source drain(s).
https://www.tucsonaz.gov/files/water/docs/Gray_Water_Information_Guide.pdf