Specifications include, but are not limited to: Manual Cleaning of Drainage Structures and Pipes Mechanical Cleaning of Drain Structures and Pipes Clean, Restore, Reshape, or Repair of Ditches, Swales, Channels Drainage Pipe Installation or Repair Build or Repair Concrete Drainage Structures (Manholes, Catch Basins, Junction Boxes, Inlets, Flumes, Headwalls, Paved Ditches/Swales, etc.) Culvert Repair Contractor shall maintain a digital (EXCEL) record of the following MS4 Permit-related activities performed: Manual Cleaning of Drainage Structures and Pipes Mechanical Cleaning of Drain Structures and Pipes Clean, Restore, Reshape, or Repair of Ditches, Swales, Channels Drainage Pipe Installation or Repair Build or Repair Concrete Drainage Structures (Manholes, Catch Basins, Junction Boxes, Inlets, Flumes, Headwalls, Paved Ditches/Swales, etc.) Culvert Repair.