Catch basins slow down when sediment, leaves, grit, and floatables reduce storage capacity. A cleaning visit should remove accumulated material and identify whether inlet, outlet, or grate conditions need attention.
Quebec City crews often need to balance cleaning speed with access, containment, and documentation. The practical path is to identify what is present, remove it cleanly, and leave the site with maintenance notes that reduce repeat disruption.
For Quebec City, this page keeps the scope specific to local dispatch realities: weather windows, access constraints, waste routing expectations, and cross-service handoff if the first symptom points to a different system. That keeps recommendations useful for operations teams instead of generic service copy.