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The City of Carlsbad provides sewer (wastewater) collection services through 288 miles of sewer pipes. Carlsbad's wastewater is delivered to the Encina Wastewater Authority, where it is treated and either released into the ocean or treated further and used as recycled water. Wastewater collection services to the southern portion of the city are provided by either the Leucadia Wastewater District or Vallecitos Water District. To determine if a property is located within these districts, please view the sewer district map.

To report sewer smells, leaks or spills, call 760-438-2722 or after hours 760-931-2197.

Please send your comments on how the City is operating and maintaining the sewer system to wastewater@carlsbadca.gov or call 760-438-2722.