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.
C83, §455B.267
85 Acts, ch 7, §7; 86 Acts, ch 1245, §1899A