Title
Resolution to Approve Amendment No. 1 to the Professional Services Agreement with Tetra Tech, Inc. for Geotechnical and Environmental Services ($10,000.00)
Memorandum
Attached for your review and approval is a resolution to authorize Amendment No. 1 to the Professional Services Agreement with Tetra Tech, Inc. (Tetra Tech) for geotechnical and environmental services.
It is necessary that the Engineering Unit perform soil borings, pavement cores, environmental sampling and testing, laboratory testing, and all associated work at various locations throughout the City of Ann Arbor as part of various public infrastructure projects. These soil borings and pavement cores identify existing soil type, soil characteristics, pavement thickness, and potential environmental contamination. This information is critical to the success of any project. Professional geotechnical and environmental engineering consultants typically perform this work, as the City does not have the necessary equipment or personnel.
On March 6, 2017, City Council approved the original agreement with Tetra Tech, as well as several other firms, to perform these services (Resolution R-17-062). Since the execution of that contract, Tetra Tech has provided services for multiple projects, which most recently include performing environmental testing for the Hoover/Hill/Greene project, and for the testing of potentially contaminated crushed limestone on several projects. These unanticipated needs will result in the exceedance of the Council authorized amount of $100,000.00.
The contracts approved for geotechnical and environmental services in March of 2017 are at this time mostly expended. Engineering staff plans to issue a new Request for Proposal (RFP) for these services this coming fall/winter. In the meantime, the attached amendment to the contract with Tetra Tech provides sufficient resources to complete the work referenced above.
Tetra Tech is in compliance with the requirements of the City’s Non-Discrimination and Living Wage ordinances.
Budget/Fiscal Impact: The services provided by these consultants will be paid for within approved project budgets and annual operating budgets as appropriate.
Staff
Prepared by: Nicholas Hutchinson, P.E., City Engineer
Reviewed by: Craig Hupy, Public Services Area Administrator
Approved by: Howard S. Lazarus, City Administrator
Body
Whereas, The Engineering Unit has a need to perform soil borings, pavement cores, environmental sampling and testing, laboratory testing, and associated work at locations throughout the City of Ann Arbor as part of various public infrastructure projects;
Whereas, Professional geotechnical and environmental engineering consultants typically perform this work, as the City does not have the necessary equipment or personnel;
Whereas, Council approved an agreement with Tetra Tech, Inc. for said services on March 6, 2017 in the amount of $100,000.00;
Whereas, An additional $10,000.00 is required on the existing contract to fully complete the work assigned to Tetra Tech until a new RFP can be issued later this year;
Whereas, The services provided by Tetra Tech, Inc. will be paid for within approved project budgets and annual operating budgets as appropriate; and
Whereas, Tetra Tech, Inc. is in compliance with the requirements of the City’s Non-Discrimination and Living Wage Ordinance;
RESOLVED, That Amendment No. 1 to the Professional Services Agreement with Tetra Tech, Inc. in the amount of $10,000.00 be approved for Geotechnical and Environmental Services, which Amendment will increase the total possible contract amount to $110,000.00;
RESOLVED, That the Mayor and City Clerk be authorized and directed to execute said agreement after approval as to form by the City Attorney and approval as to substance by the City Administrator; and
RESOLVED, That the City Administrator be authorized to take the necessary administrative actions to implement this resolution.