Aquatic Herbicide Applications
NPDES Guidelines for Aquatic Applications Orange County Public Works maintains numerous flood control channels, basins, and dams throughout the county. Due to inspection requirements and…
BMP Design Manual
County of Orange BMP Design ManualThe County of Orange (County) is subject to two Municipal Separate Storm Sewer System (MS4) permits issued by the Santa Ana and San Diego Regional Water Quality…
Bacterial Culture Aerobic
TEST NAMEBacterial Culture, AerobicDEPARTMENTBACTTESTSB2DESCRIPTIONIdentification of all aerobic organisms found using conventional biochemical and matrix-assisted laser desorption ionization time of…
County Investment Fund
Beginning with 2025, the Board of Supervisors (Board) has maintained their oversight of the investment of funds in the County Treasury. The Board-approved Orange County Investment Policy…
Compliance Monitoring
Investment Portfolio Compliance | March 2025Investment Portfolio Compliance | June 2025
Active Landfills
The County of Orange operates one of the nation’s premier solid waste disposal systems, providing this essential public service to residents and businesses in 34 cities and unincorporated areas. Our…
Trichomonas Nucleic Acid Amplification Test
TEST NAMETrichomonas Nucleic Acid Amplification TestDEPARTMENTVIROTESTSV17DESCRIPTIONAutomated Qualitative Nucleic Acid Amplification, for the primary diagnosis of Trichomonas vaginalisSPECIMEN…
Office of Vital Records
The Orange County Office of Vital Records is responsible for registering all births and deaths that occur in Orange County including births for babies that were born outside of a hospital setting.…
General Information for Funeral Establishments Only
The Office of Vital Records provides in-person services to Funeral Establishments by appointment only. Click here for instructions Page Last Updated: 12/26/2025