Guernsey States asked to follow UK best practice
The costs and practicalities of a wastewater plant for Guernsey will be looked at if a politician gets his way.
The Public Services Department has recommended not building a full sewage treatment plant after a report found it would have no environmental benefit.
Deputy Shane Langlois has called for an investigation into primary treatment only as part of the liquid waste strategy, due to be debated next week.
He said the change would mean the island followed UK best practice.
If Deputy Langlois's move is approved by the States the Public Services Department will be tasked with returning with proposals by the end of the year.
A full sewage treatment plant, which would include three stages of treatment, has been estimated at costing £100m over 25 years.
Deputy Langlois said: "I would not propose full secondary or tertiary treatment because that is happening naturally, but there should be a compromise and we should be using primary sewage treatment before we discharge out into the Little Russell."