Maintenance & Operations
1313 Valley Blvd., Colton, CA 92324 (909) 580-5008
The Maintenance & Operations Department plays a crucial role in supporting the educational mission of the Colton Joint Unified School District. Our work directly impacts student success by providing a clean, safe, and well-maintained learning environment. We are committed to creating a positive and productive atmosphere for all members of our school community.
Staff_M & O
Maintenance & Operations Administrative Staff Directory | maintenance@cjusd.net
Manager of Maintenance & Operations
Patrick Yamakawa (909) 580-5008 ext. 5344
Maintenance & Operations Supervisor II
Ralph Duran (909) 580-5008 ext. 5342
Maintenance & Operations Supervisor II
Phillip May (909) 580-5008 ext. 5363
Maintenance Supervisor
Harry Arensberg (909) 580-5008 ext.5347
Maintenance & Operations Supervisor I
Bruno Granillo (909) 580-5008 ext.5351
Maintenance & Operations Supervisor I
Ernesto Arriola (909) 580-5008 ext.5348
Grounds Supervisor
Moises Rodriguez (909) 580-5008 ext.5349
Accounting Technician
Santos Menendez (909) 580-5008 ext.5343
Office Assistant
Ariana Payan (909) 580-5008 ext.5344