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Barrie Surface Water Treatment Plant

Design and construction consulting of Barrie Surface Water Treatment Plant and intake pumping station.


Client: City of Barrie

Our client’s challenge

Historically, the City of Barrie provided treated groundwater to its residents. However, as the population of the City increased, the City’s groundwater supply was deemed inadequate and a new source of water had to be found. The City of Barrie is very fortunate to be located on the banks of Kempenfelt Bay which became the new drinking water source.   

Our approach

WSP provided consulting engineering services for the design and construction administration and supervision for a new water treatment plant including a low lift pumping station and intake to supply raw water from Kempenfelt Bay, Lake Simcoe. The initial capacity of the facility is 60 ML/d but many of the components of the facility are designed for an ultimate design capacity of 240 ML/d.

The project consists of: a 60-person administration building for the City’s water operations, a 30-vehicle buried parking garage, a process area of the treatment plant which converts 99% of raw water to drinking water, and a two-cell 20 ML reservoir.

The water treatment process train includes:

  • Pre-chlorination for zebra mussel control
  • Raw water pumping
  • Flocculation with pH suppression
  • Primary membranes for particulate/pathogen removal
  • Secondary membranes for liquid wastewater management
  • Granular Activated Carbon (GAC) for taste and odour control
  • Chlorine contact
  • Finished water storage
  • Highlift pumping
  • Chemical storage and metering for chlorine gas, liquid coagulant, sulfuric acid, citric acid, sodium hydroxide, sodium bisulphate, and sodium hypochlorite 


The project was completed in 2013 and is fully operational, supplying safe drinking water to the residents of Barrie.

Due to the facilities in close proximity to residential areas, the following concerns were addressed:

  • Noise: all air handling units for the entire facility were designed inside of the building with acoustic louvres providing the air intakes. The standby generators were moved to a location with lowest residential impact and are Tier-2 low emissions
  • LEED-inspired design: a green roof design was implemented over a large majority of the plant. The facility was partially buried and integrated into the existing landscape.