Ocean Water Protection Program

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2012/2013/2014 Triennial Ocean, Harbor & Bay Water Quality Report

New Water Quality Report
This report provides an updated analysis of bacteriological water quality data for Orange County’s recreational waters and includes data on sewage spills and related ocean, harbor and bay water closures.

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Ocean Water Protection Program
(714) 433-6400
(714) 433-6481 Fax
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Heal the Bay - Report Card


Ocean & Bay Closures, Warnings and Advisories Status Report

Report Issued:  September 1, 2015 at 8:15 AM

Report is updated when a change of status occurs.

Updates by phone: (714) 433-6400

sign: Keep Out


Ocean and bay waters are closed when an immediate health hazard is identified such as a sewage spill.  Click a closure when displayed to see the location.

No ocean, harbor, or bay water closures are currently in effect.



Ocean and bay waters are posted with warning signs when bacterial levels in ocean or bay waters exceed health standards. Click a posting when displayed to see the location.

Seal Beach - From the San Gabriel River jetty to 300 feet downcoast of the San Gabriel River jetty (posted area reduced  8/21/2015).

Yellow Warning Sign


Ocean or bay water advisories are issued to alert the public of real or possible elevated bacteria levels associated with urban and storm runoff at outlets, such as storm drains, creeks and rivers that can impact ocean and bay waters.  Click an advisory when displayed to see the outlet location where ocean bacterial levels have exceeded health standards in the mixing zone between the runoff and the receiving ocean water.

No outlets, where urban runoff mixes with ocean receiving waters exceeded health standards at the following locations the last time they were tested.

The Environmental Health staff advises that levels of bacteria can rise significantly in ocean and bay waters adjacent to storm drains, creeks and rivers. Swimmers should avoid coastal waters impacted by discharging storm drains creeks and rivers, and beach users should avoid contact with any runoff on the beach during dry or wet weather conditions.

Nowcast / Predictive Modeling Pilot Project

The County of Orange is currently participating in a nowcast pilot project in collaboration with Heal the Bay and Stanford University. The project is operating at 3 beach locations within Southern California, one being at the San Juan Creek mouth at Doheny State Beach. A nowcast is a computer-based model that predicts daily bacteriological water quality, much like a daily weather forecast. The nowcast will be updated daily, Monday through Friday and some weekends, through September 7, 2015. Click here to learn more about this pilot project.

Doheny State Beach – The ocean water area fronting the mouth of the San Juan Creek.

Today's Nowcast
September 1, 2015

Previous Sample Results
 August 27, 2015




Ocean water bacteria levels are predicted to meet state health standards at this location.

Enterococci = 9 CFU/ml

Fecal Coliform < 9 CFU/ml

Total Coliform < 9CFU/ml 

Ocean water is considered safe for contact when the following health standards are not exceeded:

Enterococci 104 CFU/ml
Fecal Coliform 400 CFU/ml
Total Coliform 10,000 CFU/ml



Red Warning Sign


Long term warnings occur at locations where bacterial levels consistently exceed health standards, usually from the impact of urban runoff. Click on a posting to see the location.

Newport Bay - Harbor Tower Marina at Pacific Coast Highway and Newport Blvd. (posted 5/6/1999).

How to Contact Us

To report a sewage spill during normal business hours (8:00 am to 5:00 pm), call: (714) 433-6419

To report a sewage spill after normal business hours, on weekends or holidays, call: (714) 628-7008

To report a bather illness or if you have any other questions, during business hours call: (714) 433-6280