EL Smith Water Treatment Upgrade Project, Edmonton, Canada
Key Data:
Capacity
Current
240 million litres a day
Final
400 million litres a 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 and filtration
Filter Media
Anthracite and sand
Disinfection
Free chlorine, chloramines & UV
pH Adjustment
Sodium hydroxide
High Lift Pumps
Each 2,000hp to 4,000hp; pump 90–200 million litres a day at approx. 1000kpa (150psi)
Low Lift Pumps
1,000hp; pump 20–200 million litres a day
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
C$140m
Project Timeline:
Plant Built
1976
Plant Upgrade Deferred
1991
"Open House" Public Information Sessions
June 2005 and 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
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
