E.L. Smith Water Treatment Upgrade Project Edmonton, Canada
Key Data:
Capacity
Current
240 million litres/day
Final
400 million litres/day firm capacity
Plant annual production (2005)
68,100 million litres
Population served (in conjunction with Rossdale WTP)
927,000
Total average daily consumption (approx)
360 million litres
Treatment process
Coagulation, flocculation & filtration.
Filter media
Anthracite & sand
Disinfection
Free chlorine, chloramines & UV
pH adjustment
Sodium hydroxide
High lift pumps
Each 2,000 to 4,000 horsepower; pump 90–200 MLD at approx. 1000kpa (150psi)
Low lift pumps
1,000 horsepower; pump 20–200 MLD
Intake suction velocity
0.01m/s
Treated water physical parameters (yearly average)
Turbidity (NTU)
0.06
Colour (TCU)
1
pH (pH units)
7.7
TDS (mg/L)
230
Chlorine residual (mg/L)
1.65
Project Cost
CAN$140m
Project Timeline:
Plant built
1976
Plant upgrade deferred
1991
"Open house" public information sessions
June 2005 & February 2006
Work began
2005
Southeast Water Transmission Main
Roadway work
August 2006
Tunnel shaft work
August 2006 – March 2007
Transmission tunnel construction begins
January 2007
Pile drilling (river intake construction) scheduled for completion
End of March 2007
Transmission main construction
March – July 2007
Completion expected
Early 2008
Key Players:
Plant owner/operator
EPCOR
Watershed Planning Advisory Council
North Saskatchewan Watershed Alliance (NSWA)
Design assistance
Associated Engineering
Tunnelling and water main installation
City of Edmonton Drainage Branch
Construction
Clark Builders, Sureform/Lockerbie & Hole
Large diameter valves
Summit Valve
Raw water and transmission main piping
Northwest Pipe
Sodium hypochlorite generator equipment
Severn Trent
UV disinfection reactor
Calgon Carbon
