UST Program Contacts

For general questions regarding the management of UST’s, please call DER at (209) 525-6700.
A Specialist is available Monday - Friday, 8 a.m. - 5 p.m.

For specific questions about your permitted facility, please contact your Area Inspector.
A Specialist may direct you to the Inspector for the area where your business is located.

Beronia Beniamine - Manager
(209) 525-6746
Robert Riess - Sr. HMS
(209) 525-6749
Aron Faria - HMS - East Modesto/Beard Industrial Area
(209) 525-6730
Amber Minami - HMS - West Modesto/Salida
(209) 525-6745
Sarah Joseph - HMS - Turlock/Denair
(209) 525-4778
Ali Arshad - HMS - West Side/Salida/Ceres/Keyes
(209) 525-6715
Mitchell Medeiros - HMS - Ceres/Hughson/Waterford
(209) 525-4749
Hans Yosif - HMS - Oakdale/Riverbank/North Modesto/Salida
(209) 525-6718
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