| STAFF | TITLE | DEPARTMENT | PHONE | EMAIL |
| ABREGO, JANNET | CUSTOMER SERVICE REPRESENTATIV | FINANCE | 925-252-4265 |
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| ACOSTA, SALOMON | MAINTENANCE WORKER I | PUBLIC WORKS - WATER UTILITIES | 925-252-6900 |
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| ALIOTTI, MARIA | ASSISTANT CITY MANAGER | CITY MANAGER | 925-252-4044 |
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| ALLEY, SAMUEL | RECREATION COORDINATOR | RECREATION | 925-252-4038 |
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| ANTONIAZZI, ANTHONY | WATER MAINTENANCE MECHANCI II | PUBLIC WORKS - WATER UTILITIES | 925-252-6986 |
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| ANZELONE, ANGELA | COMMUNITY SERVICES SPECIALIST | POLICE | 925-252-4160 |
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| ARCAINA, JOSELITO | MAINTENANCE WORKER II | PUBLIC WORKS - WATER UTILITIES | 925-252-6900 |
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| ARCEO, ADRIANA | HUMAN RESOURCES SPECIALIST | HUMAN RESOURCES | 925-252-4844 |
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| ARIAS, LAZARO | MAINTENANCE WORKER II | PUBLIC WORKS - MAINT. SVC. | 925-252-6900 |
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| ARROYOS, RAFAEL | MAINTENANCE WORKER II | PUBLIC WORKS - WATER UTILITIES | 925-252-6900 |
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| AUGUSTINE, ALEXANDRIA | ADMINISTRATIVE ASSISTANT | PUBLIC WORKS - MAINT. SVC. | 925-252-4260 |
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| BALDAZO, ANTHONY | PUBLIC WORKS SUPERVISOR | PUBLIC WORKS - PARKS AND LANDSCAPE | 925-252-4025 |
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| BALDAZO, ANTONIA | COMMUNITY OUTREACH COORDINATOR | POLICE | 925-252-4166 |
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| BALLARDO, BRYAN | PUBLIC WORKS SUPERINTENDENT | PUBLIC WORKS - MAINT. SVC. | 925-252-4908 |
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| BARAJAS, ERNESTO | MAINTENANCE LEAD WORKER | PUBLIC WORKS - PARKS AND LANDSCAPE | 925-252-6900 |
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| BARKER PORTILLO, ZUNA | HEALTH AND SAFETY OFFICER | CITY MANAGER | 925-252-4129 |
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| BELLAFRONTE, SARA | ASSISTANT TO THE CITY MANAGER | CITY MANAGER | 925-252-4109 |
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| BERARD, MICHAEL | MAINTENANCE WORKER II | PUBLIC WORKS - MAINT. SVC. | 925-252-6900 |
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| BERMINGHAM, DAVID | WATER PLANT OPERATOR | PUBLIC WORKS - WATER UTILITIES | 925-252-6900 |
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| BERUMEN, SERENA | CRIME ANALYST | POLICE | 925-252-4122 |
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