Executive/Management Staff
| Name | Title | Email |
Phone |
| Mat Ehrhardt, P.E. | Executive Director/APCO | mehrhardt@ysaqmd.org | (530) 757-3673 |
| Paul A. Hensleigh | Deputy APCO | phensleigh@ysaqmd.org | (530) 757-3665 |
| Muriel Clemente | Administrative Services Manager | mclemente@ysaqmd.org | (530) 757-3658 |
| Benjamin Beattie | Engineering Manager | bbeattie@ysaqmd.org | (530) 757-3667 |
| Jeff Pinnow | Compliance Manager | jpinnow@ysaqmd.org | (530) 757-3662 |
Administrative Staff
| Name | Title | Email |
Phone |
| Denise Almaguer | Administrative Operations Coordinator/Board Clerk | dalmaguer@ysaqmd.org | (530) 757-3675 |
| Alicia Bradell | Administrative Assistant | abradell@ysaqmd.org | (530) 757-3669 |
| Stephanie Holliday | Public Information Officer | sholliday@ysaqmd.org | (530) 757-3657 |
| Ashley Jorgensen | Air Quality Technician | ajorgensen@ysaqmd.org | (530) 757-3656 |
| Lacey O’Brien | Administrative Assistant | lobrien@ysaqmd.org | (530) 757-3539 |
| Josh Zucker | Air Quality Technician | jzucker@ysaqmd.org | (530) 757-3654 |
Compliance Staff
| Name | Title | Email |
Phone |
| Kenny Doss | Senior Air Quality Specialist | kdoss@ysaqmd.org | (530) 757-3664 |
| Oscar Garzon | Assistant Air Quality Specialist | ogarzon@ysaqmd.org | (530) 757-3663 |
| Hernan Lopez-Aguilar | Assistant Air Quality Specialist | hlopez-aguilar@ysaqmd.org | (530) 757-3659 |
| Konstantin Serin | Assistant Air Quality Specialist | kserin@ysaqmd.org | (530) 757-3019 |
| Tony Smith | Associate Air Quality Specialist | tsmith@ysaqmd.org | (530) 757-3046 |
Engineering Staff
| Name | Title | Email |
Phone |
| Jennifer Border, P.E. | Associate Air Quality Engineer | jborder@ysaqmd.org | (530) 757-3655 |
| Christopher Goodwin | Assistant Air Quality Engineer | cgoodwin@ysaqmd.org | (530) 757-3679 |
| Andres Perez | Assistant Air Quality Engineer | aperez@ysaqmd.org | (530) 757-3677 |
| Kyle Rohlfing | Associate Air Quality Engineer | krohlfing@ysaqmd.org | (530) 757-3672 |
Air Monitoring Staff
| Name | Title | Email |
Phone |
| Mike Breuning | Air Monitoring Technician II | mbreuning@ysaqmd.org | (530) 757-3666 |
