The City is in the process of updating the master plan for the sanitary sewer collection system.  The scope of work for the update includes data collection, flow monitoring, updating the City’s existing hydraulic model for the sanitary sewer network, analyzing the sewer network to determine deficiencies, developing projects to address deficiencies, and conducting a funding analysis to determine appropriate fees to support the cost of the projects.

Key benefits of the updated master plan include:

1. Expansion of the system hydraulic model to increase the pipelines modeled from 34% (trunk lines only) to 96% (all-pipes model)
2. Calibration of the hydraulic model to the updated dry weather and wet weather flows based on the flow monitoring program results
3. Update of the hydraulic model with the latest water use and land use changes

4. Re-validation and/or correction, as needed, of prior model attributes.

The updated master plan allows the City to make improvements to the sanitary sewer system to accommodate current and future development and ensure the City continues to provide a high level of reliable service to its customers.

Two main reports were generated with the master plan update:

1. Sanitary Sewer Master Plan Update 2025 Report (PDF)
   

   Summary of the activities, results and recommendations resulting from the comprehensive update of the hydraulic model, system deficiency analysis, and recommended projects to resolve system deficiencies.

2. Sanitary Sewer Conveyance Fee Nexus Study (PDF)
   Analysis of the costs associated with the needed sanitary sewer capacity improvements and the proposed fee rates to support the program. 

An outreach meeting to provide general information regarding the Sanitary Sewer Master Plan 2025 Update and the results of the Conveyance Fee Nexus Study was held on Thursday, October 9, 2025. See below for meeting materials.

• Presentation
• Video

For any questions about this project, please contact Craig Temple at ctemple@santaclaraca.gov.