For general questions or help with the campus directory, please contact us either via email at: info@deltacollege.edu or call the San Joaquin Delta College main phone number at: (209) 954-5151 and follow the prompts.
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![Dustin Tsai](https://deltacollege.edu/sites/default/files/styles/directory_grid_item/public/dustin_tsai.png?itok=-zoH33_A)
![Paul Ustach](https://deltacollege.edu/sites/default/files/styles/directory_grid_item/public/ustach_paul_2024.jpeg?itok=-AcRWdT0)
![Loren Valterza](https://deltacollege.edu/sites/default/files/styles/directory_grid_item/public/loren_valterza_265x332.jpg?itok=8D8e-j9w)
Professor / Librarian / Coordinator of Bibliographic Instruction
Arts and Communication Division, Library
(209) 954-5151, ext: 5146
![](https://deltacollege.edu/sites/default/files/styles/directory_grid_item/public/default-directory_669.jpg?itok=RjmJ1tNC)
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![Susan Vang](https://deltacollege.edu/sites/default/files/styles/directory_grid_item/public/susan-vang.jpg?itok=99j-slb9)