Iowa Code § 455B.267: Permits for beneficial use — prohibitions.

1. The director or the commission may issue a permit for beneficial use of water in a watercourse if the established average minimum water flow is preserved.

2. A use of water shall not be authorized if it will impair the effect of this chapter or any other pollution control law of this state.

3. A permit shall not be issued or continued if it will impair the navigability of any navigable watercourse.

4. A permit to divert, store, or withdraw water shall not be issued or continued if it will unreasonably impair the long-term availability of water from a surface or groundwater source in terms of quantity or quality, or otherwise adversely affect the public health or welfare.