(1) On application by a person for a waterway work licence, the authority must—
(a) issue the licence; or
(b) refuse to issue the licence.
(2) The authority must not issue a waterway work licence unless satisfied it is appropriate to do so having regard to—
(a) whether issuing the licence would or may—
(i) adversely affect the environmental flows for a particular waterway or aquifer that are required under the environmental flow guidelines; or
(ii) adversely affect the environment in any other way; or
(iii) adversely affect the interests of other water users; and
(b) whether the work would be in the interests of the public; and
(c) for work that involves the construction or alteration of a water structure—
(i) whether the structure is designed to allow water to pass over, under or through it; and
(ii) the need for the structure and whether another more appropriate approach is available; and
(d) anything else the authority considers relevant.