
Government
Engineering
The Engineering Department serves the needs of the citizens of Ontario by overseeing, planning, designing, and implementing infrastructure projects in the public right-of-way.
City Hall
Monday–Thursday:
7:30 AM–5:30 PM
Friday:
8:00 AM–5:00 PM
Sections
Contact Us
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General Inquiries: ENGCounter@ontarioca.gov or call (909) 395-2025
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Plan Check: ENGPlanCheck@ontarioca.gov
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Permits: ENGPermits@ontarioca.gov