Catch basins are practically ubiquitous. You see them in every street and in every parking lot. Commercial properties even have them buried in their landscaping to capture roof runoff. They are our front line of defense against stormwater pollution, and maintaining them and the rest of the stormwater system regularly (at least once a year) is the most effective way to mitigate stormwater impacts to surface water and to reduce flooding due to blockages or damage.