State (∃not federal) program.

Enacted in 1957 via Iowa Legislation.

In water rights law, Iowa is considered a hybrid between “Riparian” (Eastern U.S.) and Prior Appropriation (Western U.S.) law.

All waters in Iowa are “public waters and public wealth” of its citizens.

Use a permit system for anyone using >25,000 gallons of water per day, any single day of the year.