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Mission Statement

To develop regional management strategies to preserve, protect, and enhance coastal resources and surface waters throughout Orange County. A watershed approach considers the entire geographic area that a watercourse drains to address a broad range of issues.


A watershed is the geographic area draining into a river system, ocean or other body of water through a single outlet and includes the receiving waters. Watersheds are usually bordered and/or separated from other watersheds by mountain ridges or other naturally elevated areas.

Areas of Focus

OC Watersheds is a division in the Orange County Public Works department that takes care of watersheds, collects hydrologic and meteorological data, and coordinates water quality compliance between the County and the public. We also moderate harmful chemicals in the watersheds and engage in environmental engineering work. For information on the drought including turf removal rebate programs visit
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Latest News

News ImageMay 11, 2015  Global Ocean Sampling Day is June 21st, 2015
Help take a snapshot of the global oceans on Ocean Sampling Day – Sunday, June 21, 2015. Your sample will be analyzed by genomic sequences to determine marine microbial biodiversity and function.See attachments or visit for more information. Kelly Goodwin of NOAA is the MyOSD Hub for Southern California: (Kelly Goodwin, La Jolla, CA; NOAA/SWFSC, 858 546 7142). RSVP by June 2, 2015.

( My Ocean Sampling Day 2015 Handbook )
News ImageFebruary 2, 2015  8th Annual Rock Water Relay Race
The Newport Beach Chapter of Surfrider is hosting the 8th Annual Rock Water Relay Race on March 28th, 2015. The race covers 13 miles of the Santa Ana River Trail, starting at the Honda Center in Anaheim and finishing at the Santa Ana River Mouth in Huntington Beach. Email for full registration and race info. ( View PDF )

News ImageFebruary 2, 2015  Love Your Beach Cleanup - Saturday, Feb. 7th, Doheny State Beach
The SoCal Land & Water Conservancy is sponsoring a beach cleanup and other fun activities on Saturday, Feb. 7th, at Doheny State Beach. See flyer for more details. ( View PDF )