Jason Warner, General Manager/Treasurer (from 2008)

Directs, manages, and coordinates District activities in accordance with Board policies. Manages the daily activities of the District and keeps the Board informed on projects and programs to facilitate good decision making. As Treasurer of the District, the General Manager also oversees the District‘s financial operations and risk management.

Email: jwarner@oroloma.org



Andreea1Andreea Simion, Administrative Services Manager (from 2003)

Manages human resources functions, administrative support services, and public information programs. Oversees the preparation of agendas and minutes for the Board and various committee meetings, and coordinates the solid waste, recycling, safety, and training programs.

Email: asimion@oroloma.org

arlene1Arlene Wong, Finance Manager (from 2013)

Manages the District‘s financial controls and reporting system, including budgeting, cash flow, investments, billings, payments, payroll, financial audits and compliance. Ensures that the District is meeting its fiduciary responsibilities, and assists other managers in budget monitoring and project costing.

Email: awong@oroloma.org


Jimmy Dang, District Engineer (from 2020)

Manages the Engineering Department. Administers the Capital and Renewal & Replacement programs for the District. Oversees the safety program,  long-term planning for the collection system and treatment facility, issuance of permits for construction, repairs, and annexations, and reviews plans and specifications.

Email:  jdang@oroloma.org

WilliaBillm D. Halsted, Technical Services Manager (from 2020)

Manages the laboratory and pretreatment compliance programs and Capital and Renewal & Replacement projects for the collection system and treatment facility. Oversees the Geographic Information System (GIS) and Asset Management programs, prepares design documents, manages construction, and other aspects of project management related to the District.

Email: bhalsted@oroloma.org


Christopher Brown, Collection System Manager (from 2018)

Manages the inspection, assessment, and maintenance of the sewer collection system. Performs regulatory reporting and maintains continuous emergency response. Ensures that exemplary customer service is provided when the crews perform sewer line work throughout District neighborhoods.

Email: cbrown@oroloma.org

Treatment Plant

Manuel Talledo-Garcia, Operations Manager (from 2011)

Manages continuous operations of the treatment plant and water reclamation facilities. Oversees processes for energy optimization, grease acceptance for digester efficiency, and sludge dewatering. Maintains primary responsibility for regulatory compliance with the District’s National Pollutant Discharge Elimination System (NPDES) permit.

Email: manuel@oroloma.org

Gene Palop, Maintenance Manager (from 2019)

Manages treatment facilities and equipment maintenance and provides support to the Operations and Collections Departments. Maintains efficient response to remote site pump station failures. Collaborates with the Engineering Department in various projects. Maintains primary responsibility for compliance with the Air Board’s regulations.

Email: gpalop@oroloma.org

Important Numbers

(510) 276-4700 Oro Loma Sanitary District Office 24/7 Emergency Response

(510) 613-8710 Waste Management of Alameda County

(877) STOPWASTE Alameda County Recycling Hotline

(800) 606-6606 Alameda County Household Hazardous Waste

Our Facilities

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