The San Diego County Water Authority is repairing a pipeline in a remote section of Mission Trails Regional Park after a section of it failed early Sunday just north of the San Diego River.
No injuries were reported and initial assessments indicate that property damage was limited to erosion in the park from the release of approximately 3 million gallons of untreated water from the pipeline, known as Pipeline 4, into the San Diego River. Water service to homes and business was not affected.
The Water Authority is investigating the cause of the failure. Emergency repairs began late Sunday and will continue on a 24-hour-a-day basis until completed. The Water Authority is advising the Regional Water Quality Control Board and other relevant local and regional agencies of the failure.
Pipeline 4 is a 72-inch pre-stressed concrete pipeline constructed in 1977. It delivers untreated water to the City of San Diego’s Alvarado Treatment Plant, Lower Otay Treatment Plant, and the Sweetwater Authority’s Perdue Treatment Plant.
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