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Meet Our Team

Roberta Martoza, Director 

Roberta Martoza
Director
209-932-2933

Louisa Jones, Risk & Insurance Manager 

Louisa Jones
Risk & Insurance Manager
209.946.2783

Mike Ubick, Assistant Director EH&S 

Mike Ubick 
Assistant Director EH&S
209.946.7645

Lisette Cardenas, Risk Analyst 

Lisette Cardenas
Risk Analyst
209.946.3280

Thomas Campbell, Senior EH&S Tech               

Thomas Campbell
Sr. EH&S Tech
209.946.2296

 Kellan Lamb, Sr. EH&S Technician

Kellan Lamb
Sr. EH&S Tech
209.932.7735