Site and Geotechnical Investigation Consultant Services

The vendor is required to provide the site investigation and geotechnical investigation consultant will be required to assemble a consultant team, which should include, but not be limited to the following disciplines:
• Site surveying
• Geotechnical engineering
• Environmental engineering
• Municipal engineering
• Transportation engineering
• Arborist services
- Geotechnical site investigation
• Consultant must complete a comprehensive geotechnical site investigation as per geotechnical investigation guidelines for state infrastructure projects, version 1.0.
• Estimated quantities of the boreholes and test pits for each project can be found in the RFP schedule c – schedule of fees
• Consultant will drill boreholes to the minimum depths below grade as identified in schedule c – schedule of fees or auger refusal, whichever occurs first.
• Borehole locations must be determined and confirmed by the province prior to proceeding.
• During drilling operations, consultant must notify the province immediately if:
o Any fill material is encountered.
o Suitable foundation stratum is not reached within a depth of 15 m below existing grade.
o Unsuitable material, which includes non-engineered fill material, or organic material is encountered.
• If unsuitable material is encountered during investigation and province required, consultant will:
o Complete test pits to 1 meter below existing grade (1m x 1m x 1m).
o Obtain two (2) samples per test pit.
o Provide an estimated quantity of top soil and suitable fill material for proposed building footprint and paved areas.
• Backspin the boreholes and level all holes (to minimize the potential settlement around the test hole locations) upon completion, clean work area, and remove/dispose of any remaining boring spoils off site prior to demobilization.
• Restore site back to similar condition prior to the work commencing.
• This includes landscaping repairs as required.
• Record the depth of the water table as a geodetic elevation (survey required).
• Boreholes with standpipe piezometers must be backfilled with approximately 3 m of sand, 5 m of drill cuttings, and 2 m of bentonite chips.
• Piezometers must be decommissioned approximately two weeks after installation, after water levels have been measured, by removing the top 2 m of the standpipe and then filling the remaining standpipe with bentonite chips.
- Contract Period/Term: 3 years