experienced Professional Engineer to generally supervise any supervisor or worker.

• xiv. The Contractor shall, at no additional cost to the Corporation, furnish all reasonable aid, facilities and assistance required by the Engineer for the proper inspection and examination of the Work or the taking of measurements for the purpose of payment.

• xv. Where the Contractor finds any errors, inconsistency or omission relating to the Contract, the Contractor shall promptly report it to the Engineer and shall not proceed with the activity affected until receiving direction from the Engineer.

• xvi. The Contractor shall promptly notify the Engineer in writing, if the subsurface conditions observed in the Working Area differ materially from those indicated in the Contract Documents.

• xvii. The Contractor shall, if required by the Engineer in writing, search for the cause of any defect, imperfection, or fault under the directions of the Engineer, and the cost of the work carried out in searching as aforesaid shall be borne by the Contractor, and he shall repair, rectify, and make good such defects, imperfections, or defaults at his own expense.

• xviii. The Contractor shall arrange with the appropriate utility authorities for the stake out of all underground utilities and service connections which may be affected by the Work. The Contractor shall be responsible for any damage done to the underground utilities by the Contractor’s forces during construction. The Contractor shall be responsible for any damage done to the private service connections.

GC 4.02    LAYOUT

1. Prior to commencement of construction, the Engineer and the Contractor will locate on site those property bars, baselines and benchmarks which are necessary to delineate the Working Area and to lay out the Work, all as shown on the Contract Drawings.

2. The Contractor shall be responsible for the preservation of all property bars while the Work is in progress, except those property bars which must be removed to facilitate the Work. Any property bars disturbed, damaged or removed by the Contractor’s operations shall be replaced under the supervision of an Ontario Land Surveyor, at no extra cost to the Corporation.

3. The Contractor shall provide qualified personnel to lay out and establish all lines and grades necessary for construction. The Contractor shall