June 26, 1998

  To:Works and Utilities Committee

 From:Mike Price, General Manager - Water and Wastewater Services

 Subject:Geotechnical Consulting Services - Western Beaches Storage Tunnel (WBST) (Trinity-Niagara, High Park)

 Purpose:

 To obtain authorization to amend the consulting agreement dated September 25, 1996 with Geo-Canada Limited to provide geotechnical consulting services during the Phase I design and construction period of the WBST project.

 Funding Sources, Financial Implications and Impact Statement:

 Funding in the total amount of $38.5 million for engineering services and construction of Phase I of the WBST has been previously approved by the Council of the former City of Toronto and is available in Account Nos. 295480-39220-76000-295480 and 217713-39220-76000-217713 of the former City of Toronto. A contract for the amount of $32.0 million for the design/build of Phase I of the project has been awarded and the amount of $60,000 for geotechnical consulting services during design and construction of Phase I of the project has been provided for within the approved budget of $38.5 million.

 Recommendations:

 It is recommended that:

 (1) the terms of reference of the consulting agreement dated September 25, 1996 for undertaking geotechnical investigations for the WBST be amended to include the provision of geotechnical consulting services during the Phase I design and construction of the project;

 (2) the consulting fee of $266,865.70, including GST, provided for in the consulting agreement dated September 25, 1996 with Geo-Canada Limited be increased by $60,000.00 to $326,865.70, including GST; and

 (3)the appropriate City Officials be authorized and directed to take the necessary action to give effect thereto.

  Council Reference/Background/History:

 The Board of Management of the former City of Toronto, at its meeting of September 19 to September 25, 1996, in considering a report dated September 13, 1996 from the Commissioner of Corporate Services, approved the engagement of Geo-Canada Limited to undertake geotechnical investigation for the Western Beaches Storage Tunnel (Board of Management Minutes No. 27). Geo-Canada Limited was selected for this assignment as a result of a proposal call whereby a total of 34 firms were invited and proposals from seven Geotechnical Consultants were received. The Geo-Canada Limited proposal achieved the overall highest ranking based on a pre-determined point score system.

 Further, the Board of Management of the former City of Toronto at its meeting of December 18, 1997 in considering a report dated December 17, 1997 from the City Engineer, approved, inter alia, the award of Phase I of the WBST Design/Build Project at a cost of $32.0 million to the McNally-Frontier Joint Venture.

 Comments and/or Discussion and/or Justification:

 As indicated above, Geo-Canada Limited was engaged by the City in 1996 to undertake geotechnical investigations along the alignment of the WBST. The results of these investigations have been utilized in the preparation of the conceptual design of the tunnel project and form part of the design/build contract documents.

 In the meantime, Phase I of the tunnel project has been awarded and the contractor is undertaking detailed design and construction work for the storage facility.

 During the entire design and construction period for Phase I of the project (approximately 20 months), specialized geotechnical consulting services are required to assist the City in:

• reviews and approvals of detailed design calculations, design/shop drawings and contractors' methodology statements;

• field inspections, as required, to ensure that the work is being carried out in accordance with approved designs and methodology statements from a geotechnical point of view; and

• reviews of claims by the contractor for change conditions and extra work related to geotechnical conditions.

 The estimated cost of these geotechnical services amounts to $60,000, including GST, and services will be paid on the basis of time plus expenses. We are requesting authorization to continue and extend the engagement of Geo-Canada Limited to provide these services for reasons as follows:

  1. Geo-Canada Limited has carried out the initial geotechnical investigations for the WBST project which have been incorporated into the design/build contract document. Therefore, they are most familiar with geotechnical conditions in the vicinity of the project and the specifics of the WBST project.

 2. Geo-Canada Limited was selected for the initial engagement for the WBST as a result of a (competitive) proposal call. Of seven proposals received, they achieved the overall highest ranking.

 3. As per requirement in consulting agreements, Geo-Canada Limited has provided Professional Liability Insurance for their services related to the initial geotechnical investigations. The City's protection provided by this insurance may be jeopardized if another geotechnical consultant is engaged to assist the City in the design and construction phase.

 4. The costs for the required geotechnical services have been estimated and the actual costs are dependent on the design/construction schedule, project progress, difficulties encountered in the field and contractors' performances. Therefore, these services are to be paid on the basis of time plus expenses and do not lend themselves to the calling of competitive bids.

 Conclusions:

 Geotechnical consulting services are required to assist the City during the Phase I design and construction period of the WBST project. Geo-Canada Limited has carried out the initial geotechnical investigations and has a detailed knowledge of local geotechnical conditions and of the specifics of the project.

 Therefore, this firm would provide seamless continuation of geotechnical services for the WBST to the City and is best suited to assist the City during the Phase I design and construction period.

 Contact Name and Telephone Number:

 Werner Wichmann

City Engineer, Former City of Toronto

Toronto Community Council Area

Phone (416) 392-7703

Fax (416) 392-0816

Email ("wwichman@city.toronto.on.ca")

   ____________________________________________________________

Barry Gutteridge, CommissionerMike Price, General Manager

Works and Emergency ServicesWater and Wastewater Services

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