Physical and chemical characteristics of Neroutsos Inlet, British Columbia, in August 1957 are described. Moderately deep, 11 nautical miles long by 0.5 to 1 mile wide, it has been subjected to a prolonged period of waste disposal from a sulphite pulp mill near its head. The mill effluent is discharged on the surface at the shore and is largely confined to a thin surface layer about 5 m deep....