The new Low Lift Pump Station at Lakeview Water Treatment Plant is designed around 3 x 600 hp and 2 x 500 hp 4.16 KV pumps that are able to deliver 927 ML/d of water to the filtration process. The facility included 2 travelling screens, new HVAC equipment, electrical distribution equipment, and SCADA equipment.
Due to the site constraints, the excavation had to be dug vertically utilizing 14 meter long shoring which NAC elected to be a shot-crete soil nailing systemon 2 sides with one side being the existing pump station and the third open cut. A reinforced concrete structure was utilized to bring the building to grade with the balance of the building being structural steel, masonry, and precast concrete cladding. The discharge of the pumps is through stainless steel interior piping and 2 x 2100 mm exterior CPP distribution mains that tie into existing mains with provisions for future tie-ins.
The pump station is powered via a new underground 27.6 KV feeds that are reduced to appropriate voltages via roof top transformers and distributed through the plant through new switchgear and MCC’s. The facility is operated remotely requiring the need for SCADA integration that ties into the existing SCADA systems.
NAC self performed all concrete work, process piping installations, plumbing, electrical distribution, and SCADA installations.