Board Members

Picture Bio

Jimmy Dang, P.E.


Senior Civil Engineer
Oro Loma Sanitary District
Phone: (510) 481-6981

Jimmy Dang manages the laboratory, pretreatment compliance, and Capital and Renewal & Replacement programs related to the treatment facility.  He oversees the long-term planning for the treatment plant, prepares design documents, manages construction, and all other aspects of project management. Jimmy holds a B.S. in Civil Engineering from Cal Poly San Luis Obispo and a MPA from CSU Dominguez Hills. He is a registered Civil Engineer licensed in the State of California.


Bob Allen

Vice Chair

Senior Project Manager
Trident Engineering


Amanda Schmidt, P.E.

Chief Financial Officer

Associate Engineer
Central Contra Costa Sanitary District
Phone: (925) 229-7363


Nancy McWilliams, P.E.


Senior Civil Engineer
City of American Canyon
Phone: (707) 647-4579

Nancy is the Development Engineer for the City of American Canyon.  She is responsible for all engineering activities related to development from pre-application planning phase through final design and construction.


Dustin La Vallee, P.E.

Communications Officer

Associate Engineer
East Bay Municipal Utility District (EBMUD)
Phone: (510) 287-1152

Dustin is an Associate Civil Engineer with EBMUD in Oakland where he works on the design and project coordination of various water distribution pipeline projects. He has experience in the private and public sectors and has worked on a variety of environmental and civil engineering related projects.


Alexandra Watson, E.I.T.

At-Large Representative

Associate Engineer
Hydroscience Engineers
Phone: 925.332.5221 ext. 208



Bill Chavez, P.E.

Past Chairman

Project Manager
Sacramento Regional County Sanitation District
Phone: (916) 876-6015

Bill has been employed by the Sacramento Regional County Sanitation District and the County of Sacramento for over 20 years.  He has worked on the design and construction of interceptors ranging from 36 inches up to 10 feet in diameter, involving both trenchless technology and conventional open trench installation.  He has also been on the Project Management Team for the construction of two sewer pumping station, 10 and 40 MGD, in the City of Folsom and Citrus Heights.  He is a Professional Civil Engineer registered with the State of California.  Bill enjoys traveling, biking, photography, and tennis.