Not many clean-water operators can watch orca and humpback whales while doing plant rounds.That privilege belongs to Mark Descoteaux and his five-member team at the Unalaska Wastewater Treatment Facility, on an Aleutian island in the Bering Sea some 800 miles west of Anchorage, Alaska.Their chemically enhanced primary treatment plant (1.0 mgd design, 0.4 mgd average) handles wastewater from some 4,200 residents and four major fish and seafood processing facilities in what Descoteaux calls the largest fishing port in the nation.Commercial fishing enterprises capture king crab, halibut and cod from the Bering Sea; the king crab boats featured on the Discovery
