The director, on the director's own motion or the application of any person, may modify, suspend, or revoke any permit if, after affording the permittee an opportunity for a hearing in accordance with chapter 91, the director determines that:
In determining the public interest, the director shall consider the environmental impact of the proposed action, any adverse environmental effects which cannot be avoided should the action be implemented, the alternatives to the proposed action, the relationship between local short-term uses of the environment and the maintenance and enhancement of long-term productivity, and any irreversible and irretrievable commitments of resources which would be involved in the proposed action should it be implemented, and any other factors which the director may by rule prescribe; provided that any determination of public interest shall promote the optimum balance between economic development and environmental quality.
HRS § 342H-4