All petitions for boundary amendments shall be reviewed from the perspective of:
(1) Contribution to the general welfare and prosperity of the people of the county;
(2) Whether a public issue, need, or problem presently exists to serve as a basis for the proposed amendment; and
(3) Consistency with the Hawaii State plan and the county general plan.
(Sec. 34-1.6, R.O. 1978 (1987 Supp. to 1983 Ed.)) (1990 Code, Ch. 26, Art. 1, § 26-1.6)