Total Maximum Daily Load TMDLs
A TMDL (Total Maximum Daily Load) is defined in federal regulations as “the sum of the individual waste load allocations for point sources and load allocations for nonpoint sources and natural…
The Orange County Stormwater Program Technical Advisory Committee TAC
The TAC serves the Permittees in a program advisory role, providing policy direction for the Orange County Stormwater Program development, budget, and implementation. FormationPer the Stormwater…
Unincorporated Reports and Studies
The Unincorporated Orange County Stormwater Program works to keep pollution out of our flood control channels, creeks, rivers and ocean. The County is regulated by two separate Municipal Stormwater…
SANTA ANA REGION WATER QUALITY MONITORING
The Santa Ana Region Monitoring Plan fulfills the requirements of Phase I MS4 Permit issued by the Santa Ana RWQCB. Maps of the Santa Ana Region monitoring sites is provided in the link below: …
BMP Design Manual
County of Orange/ Orange County Flood Control District BMP Design ManualThe County of Orange/Orange County Flood Control District (County/OCFCD) is subject to two Municipal Separate Storm Sewer…
History
The Orange County Flood Control District (OCFCD), established May 23rd , 1927 under authorization of the Orange County Flood Control Act, Chapter 723 of the State of California Statutes of 1927, was…
Obtaining the FIRM
FEMA Flood Insurance Rate Maps (FIRM) Flood Insurance Rate Maps (FIRM), a.k.a. Flood Maps, can be viewed through the Federal Emergency Management Agency's (FEMA) Map Service Center. If you have…
Floodplain Information Elevation Certificates
As a public service to unincorporated areas, the County of Orange will provide the following information upon request: Whether a property is in or out of the Special Flood Hazard Area (…