Waitara's wastewater is closer to being treated in New Plymouth.
Tenders closed last week on a contract to convert the Waitara wastewater treatment plant into a pump station, which would send all of the town's sewage through the 13.6km pipeline, which was completed at the end of 2012, to the New Plymouth plant.
The treatment plant conversion will take about four months.
Treated wastewater is expected to stop being discharged into the sea through the Waitara outfall by mid-July.
The 22-year-old treatment plant will continue to operate during the conversion process.
The construction of the pipeline and converting the treatment plant into a pumping station had been budgeted at $12.9 million.
- Taranaki Daily News
Should New Plymouth council sell off assets from the Perpetual Investment Fund to pay off debt?Related story: Perpetual Investment Fund asset sell-off 'should be debated'
Get Taranaki's frequent news and sport updates
Get your mid week news fix
Get your South Taranaki news online