What We Do The Public Works Department of the City of Chino Hills is ready and equipped to respond to emergency situations 24-hours a day.
We realize that emergency repairs may be required at any time of the day or night. City staff is prepared with:
After-Hours Contact Instructions To contact after-hours emergency on-call staff, please phone 909-364-2860 and leave a voicemail message. Our on-call staff will respond within 45 minutes.