Where does our water come from?
Most of the City's water is imported from outside sources. About 64% comes from the Water Facilities Authority. This is a water treatment plant in Upland. About 17% comes from Monte Vista Water District wells in the Montclair area. Chino Hills wells produce about 12% of the water we use. The remaining 7% comes from the Chino Desalter Authority, which operates wells and a treatment plant in the southern part of Chino.

Show All Answers

1. If I have a leak, who is responsible for repairing it?
2. Why does the Chino Hills Water Division let water run down the street?
3. Who do I call if I have a water emergency in the middle of the night?
4. I need to make repairs to my plumbing or irrigation. How do I shut-off my water?
5. Am I responsible for the condition of the plumbing system where it is connected to the City's meter?
6. Where does our water come from?
7. What is water main flushing?
8. Why is water main flushing needed?
9. Will flushing affect my water service?
10. What do I do after flushing has been done?