March 4, 1999

TO:Works and Utilities Committee

FROM:Commissioner, Works & Emergency Services

SUBJECT:CONSULTING SERVICES - GENERAL ADMINISTRATION AND SITE SUPERVISION FOR WESTERN BEACHES STORAGE TUNNEL PHASE II

Purpose:

To obtain Council authorization to amend the engineering consultant agreement with CH2M Gore & Storrie Limited and MacViro Consultants Inc. to include detailed design services and general administration and site supervision during construction of Phase II of the Western Beaches Storage Tunnel.

Funding Services, Financial Implications and Impact Statement

Funds are available in the approved 1999-2003 Water and Wastewater Services Division, Water Pollution Control Capital Account C-WP951, New District Sewers.

Recommendations:

It is recommended that:

authority be granted to amend the existing engineering services Agreement with the joint consulting firms of CH2M Gore & Storrie Limited and MacViro Consultants Inc. for review of detailed design calculations and drawings proposed by the design/build contractor, and general administration and site services during construction for Phase II of the Western Beaches Storage Tunnel, by an additional amount of $650,000.00 including the Goods and Services Tax and including a contingency allowance of $120,000.00, to cover extended services during construction for Phase I and Phase II, if necessary and as authorized by the Commissioner of Works and Emergency Services, all in accordance with the terms of the existing engineering agreement; and

the appropriate City officials be authorized to take the necessary action to give effect thereto.

Background

Council of the former City of Toronto, at its meeting of July 5, 1996, in considering Communication No. 59 from the Board of Management, approved the engagement of CH2M Gore & Storrie Limited and MacViro Consultants Inc. (CG&S/MacViro) to provide engineering consulting services for the preliminary design, preparation of the design/build proposal call and assistance in the pre-qualifications and tender process for the Western Beaches Storage Tunnel (WBST) project in the amount of $727,229.20 including Goods and Services Tax (GST).

Subsequently, the Board of Management of the former City of Toronto, at its meeting of December 11, 1997 (Minute No. 2.6) approved amending the terms of reference of the engineering assignment with CG&S/MacViro to increase the consulting fees by $84,630.00 to $811,759.20 including GST, to allow for the preparation and evaluation of revised predesign and design/build Request for Proposals.

By adoption of Clause No. 2 of Report No. 4 of the Works and Utilities Committee, City Council, at its meeting of May 13, 14 and 15, 1998 approved amendment of the engineering consulting agreement with CG&S/MacViro to include detailed design review and general administration and site services during construction for Phase I of the WBST project, by an amount of $970,000.00 thereby resulting in a total agreement amount of $1,781,759.20 including GST.

Comments and Justification:

Council of the former City of Toronto by adoption of Clause No. 6 of Report No. 1 of the Community and Neighbourhoods Services Committee on February 4, 5 and 6, 1998, awarded Phase I of the WBST to McNally-Frontier Joint Venture Inc. at a total contract price of $31,500,000.00 including GST. See attached Appendix 'A' for summary of project costs.

City of Toronto Council adoption of Notice of Motion J(19) at its meeting on February 2, 3 and 4, 1999, awarded Phase II of the WBST to McNally-Frontier Joint Venture Inc. at a contract price of $17,259,100.00 including GST. See attached Appendix 'A' for summary of project costs.

The purpose of the WBST, following Lakeshore Boulevard West between Strachan Avenue and Parkside Drive, is to intercept and store, during periods of rainfall, polluted sewer discharges which otherwise would flow to Lake Ontario from the City's combined sewer system for subsequent treatment before release to the Lake. Intercepting and treating the polluted sewer discharges will improve the water quality along the western waterfront and substantially reduce the frequency of beach postings during the summer seasons. As previously advised, both phases of the WBST project have now been awarded and the contractor has completed approximately 65 per cent of Phase I construction. The contractor is currently mobilizing for Phase II construction with the establishment of the construction compound at Cowan Shaft located on the south side of Lakeshore Boulevard in line with Dunn Avenue.

The WBST project is a design/build contract and during its entire construction period the City must review and approve detailed engineering design calculations and design/shop drawings proposed by the contractor, as well as carry out general project administration and site supervision during construction, to ensure that the constructed work meets specified and approved standards, performance specifications, and design drawings. The City must also review and approve progress payments and change orders. To assist in carrying out these tasks, the City engaged the consulting services of the joint consulting firms of CG&S/MacViro for Phase I of the WBST project.

During construction of Phase II of this project, continuation of the same above-noted services by the same two engineering consulting firms is recommended as being most beneficial to the City of Toronto. These consultants undertook the preliminary design, preparation of the design/build RFP and evaluation of contractor proposals, and their initial involvement gives them detailed knowledge of the WBST project enabling them to competently review the detailed design calculations and drawings being prepared by the general contractor. Both consulting firms also have experience and expertise in deep tunnel and shaft construction. The cost of the consulting firms' services for Phase II of the WBST project has been estimated at $650,000.00 including GST and including a contingency allowance of $120,000.00 to cover extended services during construction for Phase I and Phase II, if necessary. The consultants' services will be paid on a time basis plus allowable disbursements, all in accordance with the terms of the existing engineering agreement.

Conclusion:

The consulting firms of CH2M Gore & Storrie Limited and MacViro Consultants Inc. had been selected by the City to undertake the preliminary design and preparation of design/build tender documents for the WBST project and to provide general administration and site supervision during Phase I construction. Accordingly, these consultants will provide continuity of engineering services for the project and are therefore best suited to undertake the detailed design services and the construction supervision and administration for Phase II of the WBST project.

Contact Name and Telephone Number:

Pagnanelli, P.Eng.

Manager, Plant & Facility Construction

Engineering Services - Works Facilities and Structures

Technical Services Division

Telephone No. (416) 392-8245

T.G. Denes, P.Eng. B.H. Gutteridge

Executive DirectorCommissioner of Works and Emergency Services

Technical Services Division

AP/cr

APPENDIX "A"

WESTERN BEACHES STORAGE TUNNEL CONSULTING AND CONTRACTUAL COSTS

CG&S/MacVIRO ENGINEERING CONSULTING FEES

AWARDED CONTRACTUAL SUMS TO MACNALLY-FRONTIER JOINT VENTURE INC.

AUTHORITY		TOTAL LUMP SUM		CUMULATIVE TLS		DESCRIPTION
Council Feb.4,5,6,1998, C&NSC Rep.1, Cl.6		-$31,500,000.00		$31,500,000.00		Awarded Phase 1 with Alternative B (Battery Park instead of Coronation Park main shaft)

Council Feb.2,3,4, 1999, Notice of Motion J(19)		+$17,259,100.00		$48,759,100.00		Phase 2 Design-Build

All above amounts include the Goods and Services Tax

These costs are included in the approved 1999-2003 Capital Works Program, Capital Account WP951, New District Sewers.