What are catch basins?

A catch basin is a curbside receptacle whose function is to convey water from streets and other urban surfaces into the storm drain system. The design of this drainage structure includes a sump that captures and temporarily stores some pollutants such as oils and sediment. Regular maintenance to clean out the sump removes the stored pollutants and prevents them from washing further into the storm drain system and into receiving waters such as the Chehalis River.

Show All Answers

1. What is stormwater runoff?
2. What is allowed in storm drains?
3. What are catch basins?
4. What is an illicit discharge?
5. How can I report a spill?
6. What can I do to prevent stormwater pollution?
7. How can I help?
8. Why manage stormwater?
9. Do catch basins and storm drains get cleaned out?
10. Why doesn’t the City clean out all of the storm drains before a storm?
11. What are the metal buttons that are above catch basins around Aberdeen?
12. What discharges are allowed in catch basins?
13. What is the Stormwater Rate?