3 Year CCTV Sanitary Sewer Main Inspection

The City of Palo Alto Utilities (CPAU) department has identified approximately 20% of sewer main pipelines for cleaning, CCTV inspection and condition assessment service. The location of pipe segments are shown on provided project map showcasing a 3 year CCTV Sewer main inspection project.

• Approximately 230,000 LF/44 miles of sewer mains need to be inspected over the period of 3 years (approximately 15 miles each year).
• The sewer mains to be inspected are non-plastic lines, with diameter range from 6-inch to 18-inch.
• The CCTV inspection needs to be conducted during the summer months (April through November, total of approximately 105 working days) each year.

The City will use this 3yr CCTV inspection data to prioritize future sanitary sewer main replacement CIP projects. Our current outdated CCTV inspection footage did not include any NASSCO Pipeline Assessment Certification Program (PACP) inspection ratings. The City would like to establish a benchmark to compare with future inspections of the same pipeline segments. By doing so, the City can incorporate an asset management program to determine likelihood of pipeline failures and when combined with the consequences of failure, develop a risk-based plan to priortize imporvements.