Yes but they still degrade relatively quickly when managed correctly so a burst of pollutants whenever it rains is better than a constant low level exposure from people washing their cars all the time.
Regions where it rains frequently like the PNW have rain gardens, vegetated swales, catch basins/filters, and other mitigation strategies all over the place whereas e.g. California might just have them throughout the drainage system like at the end of the LA river.
Regions where it rains frequently like the PNW have rain gardens, vegetated swales, catch basins/filters, and other mitigation strategies all over the place whereas e.g. California might just have them throughout the drainage system like at the end of the LA river.