Administration » Discipline Office

Discipline Office

Ontario High School Discipline Office

I am the Assistant Principal of Discipline and am committed to the safety of our students and staff on campus. The security staff throughout the Chaffey Joint Union High School District is made up of highly trained individuals who specialize in the safety of our students. Their first priority in any given situation is the safety of our students, staff, and community members on our sites. Each security officer has received specialized training and they partner with local law enforcement to maintain a safe learning environment on each of our campuses. Each of our sites also has a School Resource Officer that is assigned to the campus. In order to maintain a safe environment for our students and staff we have implemented several policies on our campus. I invite you to please take the time to learn more about our policies by reviewing the documents below. Thank you and I look forward to a successful school year!


Mr. Martin Telles
Assistant Principal of Discipline
(909) 988-7411 Ext 2030 

Email: [email protected]


Mrs. Jenny Sunderland
Discipline Secretary
(909) 988-7411 Ext 2031

Email: j[email protected]

Visitor Policy

Visitors are not allowed on any of the Chaffey District Campuses without first receiving permission and obtaining a visitors pass in the Administration Office.

Important School Rules