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Staff Directory

EMERGENCY AFTER HOURS CONTACT
For after hours emergencies regarding water, sewer, street lights, and traffic signals call: (714) 538-1961

ADMINISTRATION (714) 744-5545

Joe DeFrancesco, Public Works Director
Pam Witham, Executive Assistant

Gregory Warren, Administrative Manager (Recycling) (714) 744-5551
Robert Moya, Senior Administrative Analyst

PUBLIC WORKS FRONT COUNTER (714) 744-5525

Trista Perez, Administrative Specialist 
D'Anna Benson, Administrative Specialist
 

ENGINEERING DIVISION


Main Phone Number (714) 744-5544 

Frank Sun, Deputy Public Works Director/City Engineer 
Linda Young, Administrative Assistant 

CONSTRUCTION MANAGEMENT AND FACILITIES 

Majid Farhat, Principal Civil Engineer 
Alan Truong, Senior Civil Engineer 
Matt Lorenzen, Contract Administrator 
Jon Vikander, Facilities Maintenance Supervisor 

CONSTRUCTION INSPECTORS
(714) 744-5526 

Patrick Guerrero, Supervisor 
Bryan Save
         

DESIGN ENGINEERING 
   
Paul Tran, Associate Civil Engineer 
Randy Nguyen, Associate Civil Engineer 

ENVIRONMENTAL / WATER QUALITY
(714) 744-5547 

Gene Estrada, Environmental Program Manager 
Mike Carney, Environmental Scientist 
Tim Dunn, Environmental Compliance Specialist
Fernando Nieves, Environmental Compliance Specialist 

GIS / MAPPING (714) 744-5544
    
George Liang, Principal Civil Engineer
Neil Millward, GIS Analyst 
Tatiana Bolderoff, Engineering Technician 

REAL PROPERTY (714) 744-5544 

Mark Winters, Real Property Agent 

SUBDIVISION / DEVELOPMENT SERVICES (714) 744-5544 
          
Encroachment Permits, Grading Permits, Assigning Addresses, 
Flood Zone Information, Lot Line Adjustments, Tentative Tract Maps, 
Parcel Maps, Review of Property Dedication Requirements

George Liang, Principal Civil Engineer
Taylor Abernathy, Associate Civil Engineer 
Josh Soliz, Engineering Technician
Sandy Hayashigawa, Engineering Technician, Central Files 

TRAFFIC ENGINEERING, OPERATIONS, AND TRANSPORTATION DIVISION
 

Main Phone Number (714) 744-5536 
After Hours Emergencies (714) 538-1961 

Amir Farahani, City Traffic Engineer
Phyllis Then, Administrative Assistant 

Requests for installing Traffic Control Devices, Requests for Neighborhood 
Parking Permit Programs, Limited Time Parking Restrictions, Driveway/Intersection 
Vision Zones, traffic counts, long-term planning of transportation/
circulation issues, Neighborhood Traffic Management Program, Dirt Hauling 
Permits & complaints, Plaza Banner Permits, Oversize Load & Annual 
Transportation Permits, malfunction of traffic signals, timing sequence of traffic 
signals, burned out street lights.         

TRAFFIC ENGINEERING
  (714) 744-5540 
    
 Medel Llanes, Senior Civil Engineer 
 Dave Allenbach, Transportation Analyst 
 Doug Keys, Transportation Analyst 

 TRAFFIC OPERATIONS
(714)532-6426 

 Chris LaFace, Traffic Operations Superintendent 

 MAINTENANCE DIVISION
 
 Main Phone Number (714) 532-6480 
 After Hours Emergencies (714) 538-1961 

 Christian Saxe, Acting Deputy Director, Maintenance & Operations
 Ruben Hernandez, Acting Public Works Maintenance & Operations Manager
 Becky Fletcher, Administrative Assistant 

 FLEET OPERATIONS AND CUSTODIAL
 
        
 Keith Marian, Equipment Maintenance Superintendent 
 Teri Easley, Senior Finance Clerk 

 SANITATION / STREET MAINTENANCE / STREET TREES
 

 Victor Uribe, Public Works Maintenance & Operations Manager
 Randy Largent, Tree Services Coordinator 
 Rich Esparza, Environmental Compliance Specialist 

 WATER DIVISION 
 
Main Phone Number (714) 288-2475 
 After Hours Emergencies, (714) 538-1961 

 Jose Diaz, Water Manager 
 Corina Perez, Administrative Assistant

 ENGINEERING

 
Bob Baehner, Principal Civil Engineer 
 Son Tran, Senior Civil Engineer  
 Tuan Cao, Associate Civil Engineer 
 Josie Kauo, Senior Finance Clerk 

 FIELD OPERATIONS
 

 Rick Hurtado, Assistant Water Manager 
 John Lopez, Field Maintenance Supervisor
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