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…
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…
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FEMA Processing
The FEMA (Federal Emergency Management Agency) processing section of Engineering Support is responsible for submitting claims to the agency for damage to County public right-of-way that occurs during…
Pothole Repair
OC Public Works Operations and Maintenance handles all pothole repairs for all unincorporated areas within Orange County right of ways. Potholes can appear in various shapes and sizes on asphalt…
Permit and Plan Review
The Permit and Plan Review Section is responsible for reviewing and evaluating encroachment permit requests, subdivision and road/flood control improvement plans and specifications and permits for…