Executive Management

General Manager Jeff Umbrasas is smiling at the camera. He is wearing dark framed eye glasses, a dark grey suit jacket, a light blue dress shirt, and a darker blue checked-pattern tie.
General Manager, Jeff Umbrasas
Jeff joined Rincon Water  in 2017 as the Director of Administration and Finance.  In March 2026, he was appointed by the Board of Directors (Board) as the General Manager. As the General Manager, Jeff is under the direction of the Board and provides leadership, management, and planning for all aspects of the District’s day-to-day business for water, wastewater, and fire operations.  Jeff also represents Rincon Water before local, regional, state, and federal agencies while implementing Board directives, policies, and goals.

Administration and Finance Director Mehrnoush Jamshidi is smiling at the camera, She is wearing a black blazer, an umber camisole, and a small pendant necklace.

Director of Administration and Finance,  Mehrnoush Jamshidi
Mehrnoush joined Rincon Water in 2026. She is responsible for planning, directing, managing, and overseeing  the administration and finance activities and operations. This includes accounting, customer service, risk management, purchasing, contracts, information management, and human resources.