Additional Expenditures for Extra Work
on Capital Projects Currently in Progress
The Works Committee recommends the adoption of the following report (September 20, 1999) from the
Commissioner of Works and Emergency Services:
Purpose:
To obtain Council authorization to negotiate and authorize additional expenditures for the performance of necessary
additional work on contracts within the Water and Wastewater Services Division as outlined in this report.
Funding Sources:
Funds are available in the approved 1999-2003 Water and Wastewater Services Division Capital Accounts for each
contract outlined in this report.
Recommendations:
It is recommended that:
(1)additional expenditures in the amount of $212,343.41 including Goods and Services Tax be authorized for the
performance of necessary additional work on Water and Wastewater contracts, as described herein and in accordance with
the amounts listed in Appendix B attached; and
(2)the appropriate City officials be authorized to take the necessary action to give effect thereto.
Background:
At its meeting of January 6, 1998, City of Toronto Council enacted By-law No. 7-1998, Interim Financial Control By-law,
which repealed former Metro By-law No. 146-90. As the new by-law contains no provision to exceed the awarded contract
value, as confirmed by the City's Legal Division, the Department has effectively lost its ability to authorize the unforeseen
and necessary additional work that may arise during construction of capital projects. This is particularly problematic in
instances where the capital construction is tendered on a firm, lump sum basis. For contracts recently tendered, since
confirmation of the repeal of former Metro By-law No. 146-90, we have been providing, on an interim basis, a general
contingency allowance for possible extra work into the Schedule of Prices for Alterations, Extras, and Deductions for
incorporation into the total lump sum tender price. However, in the case of contracts identified herein, Contract
No. WS-4-97, Rehabilitation of the 13.8 kV Power Substation at the R.C. Harris Filtration Plant, and Contract No.
WPC-8-97, Replacement of Sludge Dewatering Centrifuges at the Highland Creek Treatment Plant, no such general
contingency was added, as we believed it was still available through former Metro By-law No. 146-90.
At the time of award, in accordance with former Metro By-law No. 146-90, as amended, a Department Head had authority
to approve additional expenditures on a commitment in accordance with the by-law up to an amount equal to ten percent of
the commitment. As such, under the former Metro by-law a further ten percent of the awarded contract amount for each of
the contracts identified herein would have been available for required extra work on each contract.
Comments and Justification:
Shown in Appendix A are the above-noted contracts which require the performance and/or payment of approved extra
work.
Appendix B identifies the extra work necessary to be performed for both of the contracts described in Appendix A along
with their corresponding costs.
Through the course of construction under Contracts Nos. WS-4-97 and WPC-8-97, a number of issues have arisen that
required work in addition to the scope of work specified in the contract documents. To ensure continuity with respect to
liability and warranty issues under the contracts, these changes must be implemented by the issuance of extra work orders.
Some of the extra work is required to be performed to conform to recently changed regulatory code requirements or
operating procedures, and should be implemented to ensure construction of the best possible finished product.
With respect to Contract No. WS-4-97, Toronto Hydro's standard compliance changes and the unanticipated strike by
Toronto Hydro personnel required additional effort. Because of the inherent uncertainty of the strike duration and the
regulation imposed by Toronto Hydro that no newly-installed switchgear can be energized without Toronto Hydro's
commissioning, a decision was made not to proceed with removal of the old equipment. This was done to avoid entering
the high water demand period with less than full power capacity. This decision effectively led to deferral of the
replacement work on the last transformer-switchgear assembly until after October 1, 1999, representing the start of the low
water demand period reflecting lower electrical power consumption. The contract documents specified that no work could
be undertaken during the high water demand seasonal period between May 1 and October 1.
The necessary extra work to be authorized under these contracts is due to unexpected circumstances which have arisen
during construction, and amounts to a combined total of $212,343.41 for both contracts.
Conclusion:
The additional expenditures for extra work in the amount of $212,343.41, including GST are summarized in Appendix B
attached. This additional work is necessary to either meet regulatory code requirements and/or ensure construction of the
best possible product.
Contact Names and Telephone Numbers:
P. Jancic, P. Eng.A.F. Piccolo, P. Eng.
Senior Project EngineerSenior Project Engineer
Engineering Services - Works FacilitiesEngineering Services - Works Facilities and Structuresand
Structures
Technical Services DivisionTechnical Services Division
Telephone No. (416) 392-8251Telephone No. (416) 392-8853
Appendix A
Water and Wastewater Services Division
Capital Contracts Requiring the Performance
and/or Payment of Approved Extra Work |
Capital
Acct. No. |
Contract
No. |
Description |
Authority re
Contract Award |
Awarded
Contract
Amount
Inc. GST |
Date of Order
to Commence
Contract
Work |
Water
Supply
Contracts:
WS295 |
WS-4-97 |
Rehabilitation of the
13.8 kV Power
Substation at the
R.C. Harris
Filtration Plant |
EPS Report
No. 12, Clause
No. 28, adopted
by Council on
September 8,
1997 |
$1,884,500.00 to
K-Line
Maintenance and
Construction Ltd. |
December 16,
1997 |
Water
Pollution
Control
Contracts:
WP050 |
WPC-8-97 |
Replacement of
Sludge Dewatering
Centrifuges at the
Highland Creek
Treatment Plant |
EPS Report
No. 12, Clause
No. 14, adopted
by Council on
September 24,
1997 |
$1,645,000.00 to
Ram Mechanical
Contractors
Limited |
November 17,
1997 |
Appendix B
Request for Authorization of Additional Expenditures
for Extra Work on Water and Wastewater
Contracts Identified in Appendix A |
Contract
No. |
Extra Work Description/Justification |
Terms |
Authorized
Additional
Amount |
WS-4-97
WPC-8-97
|
Provision of Type B Toronto Hydro (TH) incoming/metering cells
CREDIT: Provision of non-arc proof TH incoming/metering cells
THES warning labels
THES interlocks
THES pilot wire CTs
CREDIT: Deletion of metering cabinet (TH consulted)
Extra shop drawings of switchgear to expedite TH part of work
CREDIT: Deletion of Extra Sets of CTs (6 Sets)
CREDIT: Parking lot grounding grid
CREDIT: Front door glazing (Heritage Committee request)
CREDIT: Floor channels
Civil works - modifications to accommodate General Switchgear equip.
Seal for floor cracks
CREDIT: Transformer loss credit
Low Voltage terminations - 1250 kcmil extra termination cost
General Switchgear - SCADA changes
Metering conduit (enforced by TH)
Dedicated AC/DC supply (safety and security concerns)
CREDIT: Delete P & C wiring
Supply and install telephone splitter
Supply and install cordless wrench
Ferranti transformer claim
Add CT (P&C) wiring
Delay in T1 installation - TH strike (site storage, double handling, etc.)
Floor painting
Rescheduling of work due to Plant operations
Add D C breaker
Add Feature to Battery Charger
SUB TOTAL RE EXTRA WORK FOR WS-4-97
Additional hardware and software for interlocks & control of system
Programming modifications for alarms, control back-up and configuration,
provision of additional valving and piping
SUBTOTAL RE EXTRA WORK FOR WS-8-97
TOTAL RE EXTRA WORK FOR BOTH CONTRACTS NOTED |
Lump Sum
Lump Sum
Lump Sum
Lump Sum
Lump Sum
Lump Sum
Lump Sum
Estimated
Lump Sum
Lump Sum
Lump Sum
Lump Sum
Lump Sum
Estimated
Lump Sum
Estimated
Estimated
Estimated
Lump Sum
Lump Sum
Lump Sum
Estimated
Lump Sum
Estimated
Estimated
Lump Sum
Lump Sum
Lump Sum
Lump Sum
Lump Sum
|
80,810.37
-85,000.00
1,807.60
507.54
2,392.41
-554.19
617.93
-2,000.00
-2,247.00
-1,979.50
-2,773.44
31,145.32
12,198.16
-3,000.00
2,319.65
1,281.33
10,905.95
13,400.00
-5,157.51
3,692.89
1,975.28
16,236.84
15,575.71
66,813.48
13,858.93
4,756.90
3,390.52
3,019.04
183,994.21
13,068.86
15,280.34
28,349.20
212,343.41 |