|
CONSTRUCT
A MICRO FILTRATION PLANT PROGRAM
|
9.0 - COST
|
|
The project included
improvements to the intake and settling pond. The water treatment plant
building houses the raw water strainers, the membrane system, gas
chlorination system, peak draw treated water pumps, standby power
generation as well as an office and laboratory. The project included a
residuals disposal system, a 910,000 Ml clearwell and all the outside
piping to integrate the plant with the existing transmission system.
Finally the project scope included both a plant and City SCADA system.
The plant operates under a gravity water supply through the plant with
limited treated water pumping for peak summer draws only. The residuals
disposal from the plant under permit from the Ministry of Environment
Lands and Parks is by gravity to settling ponds.
A schematic of the water
treatment system is provided on Figure 2.

A schematic of the plant
floor plan is provided on Figure 3.

|
| 9.1
- Capital Cost |
The total final costs to project
completion are as follows:
| 1. |
Intake
and Settling Pond Modifications |
$245,000 |
| 2. |
Excavation,
Backfill, Yard Piping |
410,000 |
| 3. |
Clearwell
Reservoir (Concrete, Rebar) |
150,000 |
| 4. |
Building
(Shell, Footings, Trusses, Roof System, Block Wall, & Interior
Finishes) |
400,000 |
| 5. |
Mechanical
(Process, Building and Membrane Equipment Installation) |
595,000 |
| 6. |
Electrical,
Instrumentation and Membrane Equipment Installation |
425,000 |
| 7. |
SCADA
System |
300,000 |
| 8. |
Membrane
Equipment Supply |
2,535,000 |
| 9. |
Engineering |
200,000 |
| 10. |
Construction
Management |
200,000 |
| 11. |
Site
costs, First Aid, Insurance |
200,000 |
| 12. |
Other |
180,000 |
| 13. |
Taxes |
160,000 |
| Total
Project Cost |
$6,000,000 |
The total project capital cost was
$6,000,000 with the cost for the membrane system being $2,535,000.
|
| 9.2
- Operation and Maintenance
Costs |
The estimated annual operation and
maintenance costs of the Greeley Creek water treatment plant are as
follows:
| 1. |
Wages |
$40,000 |
| 2. |
Fringe
Benefits |
13,000 |
| 3. |
Freight |
500 |
| 4. |
Telephone/SCADA |
|
| |
- Radio License |
500 |
| |
- Telephone (2 lines) |
2,500 |
| |
- Technical Support |
10,000 |
| 5. |
Insurance
|
7,500 |
| 6. |
Contracted
Services |
5,000 |
| 7. |
Internal
Equipment Rental (Snow Removal) |
5,000 |
| 8. |
Materials
and Supplies |
|
| |
- Membrane replacement (8 year cycle) |
55,000 |
| |
- Chemicals |
5,000 |
| |
- Replacement parts |
10,000 |
| 9. |
Utilities
(Electrical/Propane) |
35,000 |
| 10. |
Other |
5,000 |
| TOTAL |
$194,000 |
The total City budget for plant
including labour (one full time equivalent), mechanical and materials
costs is $194,000. The City will operate the plant with the existing
labour force. The exception is that an electrical instrumentation
technician has been hired to work not only at the plant but also on
other City facilities.
|
| 9.3
- Unit Cost of Water Treatment |
The cost of water treatment includes
the capital debt retirement costs plus the annual operation and
maintenance costs. The debt servicing is through the Provincial
Government's Municipal Finance Authority. The total annual debt
retirement costs, including the Province's obligation, are $562,000 and
the annual operation and maintenance costs are $194,000. The total
annual cost of the water treatment plant is about $756,000. The
estimated 2007 total volume of water treated is 2,628 ML. The unit cost
of water is $0.29/m3 made up of operation and maintenance costs of
$0.08/m3 and capital debt repayment costs of $0.21/m3.
|
| 9.4
- Consumers Cost of Water |
In the absence of metering the City
water utility bills on a flat rate. Prior to the Greeley Creek project
the residential rates were $125 per year. The annual rate per
residential connection was increased to $175/year on July 1, 1999 and on
January 2000 increased to $225/year. The City's 10 year strategic
Financial Management Plan anticipates the water rate leveling out at
$275/year in 2002. This includes the impact of the Province assuming
fifty percent of the water treatment plant capital debt retirement costs
and reserves for planned capital works.
|
|