What is the difference between a storm drain and a sewer?

Sewer pipes capture used water and liquid waste from homes and businesses and carry it to wastewater plants for treatment. Treated wastewater can be reused for landscape irrigation, industrial and construction purposes. Storm drains are separate from the sewer system and, unlike wastewater, stormwater is not treated and reused. Some storm drains are under streets, but much of the system consists of open canals, street gutters and other features that collect, channel and divert stormwater runoff.

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1. What are the City's drainage related responsibilities?
2. What are the resident's drainage related responsibilities?
3. What is the difference between public and private drainage systems?
4. My neighbor has done some work on their lot and now I'm getting more runoff. What can I do?
5. What can I do if there is a significant drainage issue in my neighborhood?
6. Who do I contact for my drainage question that isn't listed here?
7. Is street flooding normal?
8. What is stormwater?
9. What is a flood plain?
10. What is the difference between a storm drain and a sewer?
11. What does impervious mean?
12. What is the difference between detention and retention?