Wastewater

The wastewater division maintains approximately 97 miles of sanitary sewer main, which consists mostly of 6 and 8-inch lines, 45 miles of closed storm collection systems and 4 pump stations.

Through effective preventive maintenance programs, the division's goal is to maintain the City's sanitary and storm sewer system in the most cost effective manner possible. This reduces health hazards, property damage, extensive repairs and cleaning costs from damages caused by sewer and storm drain back-ups. The entire main line system is normally cleaned on the average of once each year, using both a mechanical rodder and a hydraulic sewer line cleaner. The storm drain catch basins are cleaned one to two times per year. The wastewater division also has a sewer main line televising program to inspect the sewer system for potential problems and repair them before they happen.

In the event of main line blockages during the City's normal business hours, Monday through Thursday, 7:00 a.m. to 6:00 p.m., please call Public Works at (619) 336-4580.  Outside of our normal business hours, please contact the National City Police Department at (619) 336-4411.

This division is also responsible for marking all City-owned underground utilities in response to Underground Service Alert requests.

Sewer Master Plan Review and CIP Update - May 2019 (PDF)

Sewer Master Plan- March 2011 (PDF)

Sewer System Management Plan - May 2024

Sewer System Management Plan - Volume 1 (August 2013) (PDF) 

Sewer System Management Plan - Volume 2 (August 2013) (PDF)

Regional Water Reuse Plan 2013- memo (PDF)

Regional Water Reuse Plan 2013 (PDF)

Please email any comments regarding the Sewer System Management Plan to publicworks@nationalcityca.gov .

Dig Alert 1-800-227-2600