A catch basin is the sumped inlet that takes runoff off a road, parking lot, or yard and carries it into the storm system. Over time it fills with sediment, road grit, leaves, trash, and an oil-and-water mix. Once the sump fills, the basin stops doing its job — water backs up, ponds, and in winter freezes. Culverts collect the same material at a larger scale, and a blocked culvert can flood a road or wash out a shoulder.
Cleaning the structure means removing that accumulated material and getting the slurry off site. OE does this with high-pressure water to break up compacted sediment and a high-capacity vacuum to lift the slurry into the debris tank — the same non-destructive method we use for utility work, applied to drainage maintenance. There is no mechanical digging in the structure and no material pushed deeper into the system to resettle downstream.
Cleaning a basin is only half the job — the material has to go somewhere. Sediment removed from Ontario storm structures is generally not hazardous waste, but it still has to be transported by a licensed hauler and taken to an approved facility. OE handles the cleanout, the haul, and compliant disposal as one scope, so the documentation lines up with your maintenance and reporting obligations.