Site drainage investigative works as described on the attached sheet C2.0 Preliminary Utility Plan. The scope of work shall include the following: 1. Perform potholing at four (4) locations to determine: a. Depth of pipes from adjacent finish grade to the top of the conduits b. Size and diameter of conduits (so that conduit invert elevation can be calculated). c. Material of conduits. d. Required potholes patch and repair works to match with the existing adjacent surfaces. Note that Pothole #3 is located in an existing play equipment area and will require the removal, salvaging, and reinstallation of the rubber tiles over the asphalt pavement to match the existing conditions. 2. Video recording inspections of the existing conduits routed from the site and through the building are continued through the building as far as is feasible. Recording shall be saved in a USB Flash Drive and properly documented in a report format with information to include pipe coordinates and location, camera angle and direction of video recording, date and time of the recording, etc.
