Section 455B.267 - Permits for beneficial use - prohibitions1. 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.C58, 62, 66, 71, 73, 75, 77, 79, 81, § 455A.22 - 455A.24; 82 Acts, ch 1199, §21, 96C83, § 455B.267 85 Acts, ch 7, §7; 86 Acts, ch 1245, §1899AReferred to in §455B.265A, 460.302