The Alaska Department of Environmental Conservation is remanding a Constantine Metal Resources waste management permit for additional review after a handful of Haines residents and local and out-of-state environmental groups contested the permit approval.

Amber LeBlanc, acting director of the department’s Division of Water, issued her decision on Sept. 9 — about a month after the challengers’ requested an informal review of the division’s decision to issue a wastewater discharge authorization permit.

The legal requirements…