Keeping up with population growth

The Gilmore sanitary catchment area has experienced rapid growth and sanitary flows as the area has become more developed after the construction of the Millenium SkyTrain.

The upgrade increased pumping capacity to 155 L/s through new FRP wet well with triplex 70HP pumps.

Work included:

  • A new influent sanitary sewer
  • Tying in with an overbuilt manhole
  • Duplex 45HP pumps for the existing wet well for back-up service
  • A flow diversion chamber to allow flows to be directed to the new or old wells valve chamber

A new control building was constructed with architectural features including patterned masonry block, glulam beams, and a green roof. The building houses the motor control centre, a standby power Genset, an odour control system and a washroom. An art display sign was built on the exterior of the building to explain the infrastructure to the public.  

The pump station site posed a number of challenges including:

  • Overhead SkyTrain and BC Hydro
  • Difficult geotechnical conditions necessitating sheet pile excavation and pile foundations for the structures
  • A methane dissipation system
  • Corrosion protection