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Morden Wastewater System Upgrade

The City of Morden with the assistance of Manitoba Water Services Board (MWSB) has completed their evaluation of the different options for upgrading the wastewater treatment system for the city and has decided to proceed with a lagoon-based Moving Bed Biofilm Reactor (MBBR) treatment system. The options that were considered include a lagoon-based wetland treatment system, MBBR System, SAGR system, a regional facility with Winkler and a subsurface treatment wetland system.

After preliminary evaluation the lagoon-wetland option emerged as the preferred option followed by the MBBR and SAGR system, however after further investigation and stakeholder engagement it became apparent that environment act licensing may be challenging and time-consuming for the lagoon-wetland option with the strong possibility of approval not being achieved. Therefore, council on the advice of MWSB and City administration has made the decision to proceed with the lagoon based MBBR treatment system to move forward in a timely and efficient manner.

The MBBR system will include a mechanical treatment process followed by the lagoons to be used for clarification. The sludge from the lagoon cells will be removed and all the cells will be lined. The height of the dykes will be increased to provide the additional storage capacity. The trunk sewer mains leading to the lagoon site will also be realigned as part of the project, this system will also significantly mitigate the odor issues associated with the current lagoon.

The class-D cost of the option is estimated at $70,000,000. The treatment system will be sufficient to meet the city’s current and growth needs for the next 20 years.

We recognize that there will be a cost to the rate payers through increased sewer rates as well as increased development levies which will be carried by the developers. Further information will be provided through a Public Hearing process however early indications show that the current sewer rate of $4.20 per 1000 gallons of water consumption will increase to $20.51 per 1000 gallons.

For further information on the MBBR system please visit our MBBR Wastewater Treatment System Description page