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Contact Us

Maintenance, Operations & Facilities

General Lobby Hours: 7:00 AM - 3:30 PM

Emergency Dispatch Line: (925) 825-7440 Ext. 3884
Security Line After Hours: (925) 825-7440 Ext. 3836

If needed, please email security at

Note: The Operations Department runs  24 hours, 7 days a week. The scope of public service may extend after hours. Please contact directly for appointments if needed.

Dispatch Line

For emergencies or operator needs, please contact Emergency Dispatcher at Ext. 3884


Melanie Koslow

Executive Director of Maintenance, Operations & Facilities
(925) 682-8000 Ext. 3815

Maintenance & Operations

Janet Richardson

Administrative Secretary II
Ext. 3804

Paul Lundholm

Maintenance Manager
Ext. 3826

Chris Hansen

Custodial & Operations
Ext. 3861

Brian Patterson

Landscape Manager
Ext. 3822

Sara Baca

Use Permits Technician
Ext. 3827

Connie Hernandez-Race (Sub)

Secretary, Trades
Ext. 3809

Anabelle Anading

Secretary, Custodial
Ext. 3820

Lewy Madrigal

Secretary, Grounds
Pest Control
Ext. 3802

Liz Acevedo

Fiscal Analyst
Ext. 3830

Heather Johnston

Facilities Technician
Ext. 3807

Patty Zaldana

Ext. 3884

Custodial & Operations Coordinators

Nick Jakobsen

Team Green | AM Schedule
Ext. 3821

Hashimu Lewis

Team Green | PM Schedule
Ext. 3824

Debbie Robertson

Team Orange | AM Schedule
Ext. 3860

Patrick Reed

Team Orange | PM Schedule
Ext. 3829

Facilities & Bonds

For more information, please visit the Facilities & Bonds page.

If needed, please email

Marie Hill

Administrative Secretary
Ext. 3863

Han Phan

Facilities Technician
Ext. 3864