Notification of Scheduled Wastewater Overflow into Lunenburg Front Harbour due to Equipment Upgrades and Commissioning at Wastewater Treatment Plant

The Town of Lunenburg is planning to perform equipment upgrades and commissioning at the Lunenburg Wastewater Treatment Plant that shall create periods of disruption to the Town’s wastewater treatment process. These periods of disruption are tentatively scheduled for a 5-hour period during November 25, a 5-hour period during December 1, a 3-hour period during December 9, and a 3-hour period during January 6, 2027. These times could change depending on weather or other factors. It is estimated that during these scheduled periods of disruption for the equipment replacement work, a total of approximately 2,150 m3 of wastewater will be released into Lunenburg Front Harbour from three relief points located near 3 Brook St., 34 Bluenose Dr., and 176 Bluenose Dr., Lunenburg. These locations occasionally see overflows of wastewater during heavy rain events due to system design to relieve pressure from high volumes in the collection system due to wet weather. 

This equipment upgrade and commissioning at the Lunenburg Wastewater Treatment Plant is integral to the system’s operation and must be completed by redirecting wastewater flows away from the Plant. As a result, the Town of Lunenburg will schedule the periods of disruption to take place during expected times of no/low precipitation to reduce flows within the wastewater collection system. This will help minimize the impact on customers and the environment while ensuring customers continue to have wastewater service during this period.  

To reduce pressure on the wastewater system and minimize environmental impact during these periods of disruption, we are asking Town of Lunenburg utility customers to reduce wastewater flows. Please minimize use of running water, flushing toilets or doing laundry during these times.

Furthermore, during a 355-hr period during the period of December 1 to 16, as the new treatment process is brought online, all wastewater will receive partial treatment including solids removal, but the treatment process will not be at full effectiveness yet.  During this period, a total of approximately 47,780 m3 of wastewater that is not fully treated may be released at the usual outfall near 34 Bluenose Dr.  As the process gets established and the biomass builds up, wastewater effluent quality will gradually improve until it meets the federal regulatory requirements by the end of this period.

Further details shall be provided by the Town in due course to confirm the dates and times for the commencement of each of the periods of disruption to the wastewater treatment process.

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