Municipal Control: The Joint Boards must maintain overall control over the assets,
capital construction, system growth, and the long-term development of the system;
Value for Service: The Operator must provide the best service for the
price offered, as well as provide cost control mechanisms;
Capital Projects:
The Joint Boards are responsible for developing, approving, funding and
controlling the implementation of all capital projects. The input of the
Operator on capital projects will be sought. The Joint Boards are particularly
interested in receiving innovative suggestions from the Operator that will
enhance the Joint Boards' System performance; and,
Appropriate Allocation of Risk: Throughout the term of the
Contract, an appropriate balance of risk and benefit will be established
between the Joint Boards and the Operator.
The Lake Huron Water Treatment Facility
The
water treatment facility for the Lake Huron Primary Water Supply System,
located approximately 2 kilometers north of the village of Grand Bend on
Highway 21, has a treatment capacity of 340 million litres per day (75
million Imperial gallons per day or 90 million US gallons per day) and
supplies water to the communities of Bluewater, South Huron, Lambton
Shores, North Middlesex, Lucan-Biddulph, Middlesex Centre,
Strathroy-Caradoc and the City of
London.
The current daily production (annual average) for this facility is 157
million litres per day with a 2001 maximum day production of 264 million
litres. The facility employs ten full-time staff, supplemented by local
contractors for specific or specialized maintenance tasks.
The intake crib for the water treatment facility is located approximately
two kilometers offshore in about 10 meters of water. The intake
structure is designed for the plant’s ultimate treatment capacity of 454
million litres per day for when the plant eventually expands.
The water treatment system employs conventional chemically assisted
flocculation and sedimentation systems, dual-media filtration, and gaseous
chlorine as the primary disinfectant. The treatment system and water
quality is continuously monitored using online analyzers and computerized
Supervisory Control and Data Acquisition (SCADA) systems.

The water treatment plant has five 3000hp high-lift discharge pumps, which
pump the water from the plant at an average pressure of 1380 kPa (200 PSI) through the
47 kilometer
long 1200mm (48 inch) pipeline to the Arva terminal reservoir north of the
City of London. During higher demand periods,
typically in the summer months, an intermediate reservoir and booster
pumping station located near West McGillivray is used to boost the water
to the City of London.
In the event of a power failure, the water treatment plant has a 3.8
megawatt marine-diesel generator onsite and 80,000 litres of diesel fuel,
which is enough to supply power to one high-lift pump, one low-lift pump
and associated treatment, control and monitoring systems for a period of 7
to 10 days before refueling is required.
The Elgin Water Treatment Facility
The water treatment facility for the Elgin Area Primary Water Supply
System, located approximately 2 kilometers east of the village of Port Stanley on County
Road 24 (Dexter Line), has a treatment capacity of 91 million litres per day
(20 million Imperial gallons per day or 24 million US gallons per day) and
supplies water to the communities of Southwold, St. Thomas, Central Elgin,
Aylmer, Malahide, Bayham and the City of London.
The current daily production (annual average) for this facility is 53
million litres per day with a 2001 maximum day production of 74 million
litres. The facility employs ten full-time staff, supplemented by local
contractors for specific or specialized maintenance tasks.
The intake crib for the water treatment facility is located approximately
1.5 kilometers offshore in about 10 meters of water. The crib
intake structure is designed for the plant’s ultimate treatment capacity of
181 million litres per day for when the plant eventually expands.
The water treatment system utilizes conventional chemically assisted
flocculation and sedimentation systems, dual-media filtration, and chlorine
as the primary disinfectant. The treatment system and water quality is
continuously monitored using online analyzers and computerized Supervisor
Control and Data Acquisition (SCADA) systems.
The water treatment plant has four 700hp high-lift discharge pumps, which
pump the water from the plant at an average pressure of 600 kPa (85 PSI) through the 15 kilometer
long 750mm (30 inch) pipeline to the Elgin-Middlesex Terminal Reservoir northeast
of the City of St. Thomas. The water is then re-pumped to St. Thomas,
London, Central Elgin, Malahide and Aylmer from this terminal reservoir. The
750mm (30 inch) pipeline which supplies water to the St. Thomas Terminal
Reservoir also supplies water to the village of Port Stanley and the
municipalities of Central Elgin, Malahide and Bayham along County Road 24
(Dexter Line)
Because the two area water systems are inter-connected through the City of London, the
Lake Huron Water Supply System can supply water to the Elgin Area Water
Supply System in the event of an emergency.
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