Cogeneration Facility, Humber Treatment Plant -
Contract No. WPC-11-97
The Works and Utilities Committee recommends the adoption of the following report (April 7, 1998) from the
Commissioner of Works and Emergency Services:
Purpose:
The purpose of this report is to award Contract No. WPC-11-97 for the installation of previously purchased new gas
engines and air blowers including all associated electrical and mechanical work for the cogeneration project at the Humber
Treatment Plant.
Funding Sources:
On August 12, 1992, Metropolitan Council adopted Clause No. 17 of Report No. 17 of The Works Committee, approving
funding for the cogeneration project at the Humber Treatment Plant. Financing for the cogeneration project was previously
approved, and funds are available in the Water Pollution Control Capital Account No. C-WP115, Humber Treatment Plant.
Recommendations:
It is recommended that:
(1)Contract No. WPC-11-97, for the installation of previously purchased new gas engine generation units and electric air
blowers including all associated electrical and mechanical work for the cogeneration project at the Humber Treatment
Plant, be awarded to Comstock Canada Ltd., for the Total Lump Sum Price of $16,798,000.00 including the Goods and
Services Tax and a Schedule of Prices Allowance of $22,860.00 for potential additional work; and
(2)the appropriate City officials be authorized to take the necessary action to give effect thereto.
Background:
On March 19, 1998, the City Clerk's Office of the Corporate Services Department opened the following tenders for
Contract No. WPC-11-97:
No. |
Tenderer |
Total Lump
Sum Price
$ |
Schedule of
Prices
Included in
Total Lump
Sum
Tender Price
$ |
4 |
Comstock Canada Ltd. |
16,798,000.00 |
22,860.00 |
3 |
Granville Constructors Ltd. |
17,424,500.00* |
28,740.00* |
1 |
E.S. Fox Limited |
17,868,000.00* |
22,340.00* |
2 |
Sutherland-Schultz Inc. |
18,926,160.00 |
28,740.00 |
*Tenderers Nos. 3 and 1 made arithmetical errors in the Schedule of Prices. As per the terms of the tender documents, the
amounts for both the Schedule of Prices and the Total Lump Sum Price have been adjusted accordingly.
Representatives of this Department and our consultants have met and reviewed the tender with the lowest tenderer,
Comstock Canada Ltd. (Comstock). Clarification was required on some technical aspects of the tender submission by
Comstock. Comstock subsequently submitted additional information and clarification respecting the said tender, in writing,
which satisfies the Works and Emergency Services and Legal Departments that all requirements of the tender documents
have been met. We are satisfied that this company has the capability to carry out the work as specified. Comstock has
successfully completed other work for the Department in the past.
This contract was originally tendered in July/August 1997, at which time only one tender was received in the amount of
$21,763,800.00. This amount was approximately 40 percent over the pre-tender estimate which was primarily attributed to
unfavourable market conditions created by a very high volume of tendering activity at that time. As a result, staff
recommended that the contract not be awarded at that time, that the scope of work be reviewed and adjusted, and that the
contract be retendered at a later date under more favourable market conditions. By adoption of Clause No. 13 of Report No.
12 of The Environment and Public Space Committee on September 24, 1997, Metropolitan Council approved the
retendering of the project. The scope of work was subsequently reviewed, split into two contracts and retendered. This
action has resulted in an overall reduction of $4,236,934.00 in the tendered value for the installation contract, and brings
the overall cost of the cogeneration project within the amounts budgeted in the Capital Works Program.
The Fair Wage Office has advised that Comstock and their named subcontractors maintain wage rates, working conditions,
and collective agreements conforming to City of Toronto requirements.
The Commissioner of Finance has approved the proposed bonding company.
Comments and Justification:
This contract is the last of a four-part project, the other three being: (a) the supply of new air blowers; (b) the supply of
new gas engine generation units; and (c) the construction of an electrical substation building and associated buried
electrical concrete encased duct banks all required for the cogeneration project. The supply of new electric air blowers
under Contract No. WPC-9-94 and new reciprocating gas engine generation units under Contract No. WPC-10-94 were
awarded by Metropolitan Council on April 5, 1995, by adoption of Clause No. 22 and Clause No. 21, respectively, of
Report No. 5 of The Environment and Public Space Committee. The construction of the electrical substation building and
associated duct banks under Contract No. WPC-10-97 is expected to be awarded in April 1998 by the newly established
Bid Committee. The contract award values for the air blowers, the cogeneration units, and the electrical substation building
are $2,576,913.00, $13,197,038.00, and $728,866.00, respectively. The air blowers and cogeneration equipment have been
delivered and are currently in storage awaiting to be installed under this current installation contract, No. WPC-11-97.
The project, as a whole, is required to upgrade/modify the existing cogeneration plant replacing aged equipment in service
since 1958, and to utilize increased digester gas production for supplying electrical and heat energy and process air for
sewage treatment purposes.
Conclusions:
It is recommended that Contract No. WPC-11-97 should be awarded to Comstock Canada Ltd. for the installation of new
gas engine generation units and electric air blowers including all associated electrical and mechanical work for the
cogeneration project at the Humber Treatment Plant.
Contact Name and Telephone Number:
Mr. A. Pagnanelli, P.Eng., Senior Project Engineer, Management & Technical Services Division
Phone No.: (416) 392-8854; Fax No.: (416) 392-4594
E-mail: anthony_pagnanelli@metrodesk.metrotor.on.ca