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Planned upgrades to Saint John’s Lancaster Lagoon

You may notice more odour than usual near the Lancaster Lagoon in Saint John over the coming months as the aeration system is upgraded.

A temporary bypass will be installed to redirect incoming wastewater away from the aeration treatment pond to the existing settling pond.

While wastewater will continue to be screened, the city said it will be at a reduced level compared to when the facility is fully operating.

“Residents should be aware of the potential for increased odour throughout the duration of the project, which is a result of the sludge removal from the aeration cells,” the city said in a recent news release.

“Understanding that wastewater is being released at a reduced treatment level, Saint John Water advises that people and pets minimize recreational activities in the water around the outlet of Manawagonish Creek, as well as Manawagonish Cove.”

The temporary bypass will occur for about three months, with a planned start date of June 20 and an estimated completion date of Sept. 20.

Once the new aeration system is installed and operational, incoming wastewater flow will be directed back to the aeration pond for regular operation.

Officials said the new aeration system will extend the service life of the Lancaster Lagoon, improve the efficiency of the treatment process and ensure the operation continues to meet regulatory compliance.

The Lancaster Lagoon is located on the city’s west side between Route 1 and Sand Cove Road.


  • Brad Perry is an award-winning news anchor and reporter and a 2013 graduate of the NBCC journalism program. Based in New Brunswick, he is also the assistant national news director for Acadia Broadcasting. Contact Brad at perry.brad@radioabl.ca.

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Saint John, CA
2:56 am, Apr 10, 2026
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