Manx Utilities has invested £3 million to upgrade the sewage treatment works in Ballaugh.
The work has been designed to treat waste water in the village to an acceptable industry-standard, said the Isle of Man government.
Chairman Tim Baker said: " I am pleased that the area is now able to treat waste water in a modern and environmentally acceptable way".
The government said the treatment units are safer to operate and include odour control.
Postal vote applications have to be in soon
Mum launches petition over university support
Bus services north and south face disruption later
Wildlife Trust unveils woodland plans
Deadline looms for by-election nominations
Biker in UK hospital after Mountain crash
Trial event closes roads in Peel and Ramsey
Requisition meeting for Garff voters