REPORT TO COUNCIL
SUBJECT
Title
Consider an Agreement for Sanitary Sewer Hydraulic Modeling As-Needed Support Services
Report
BACKGROUND
The City's sanitary sewer collection system consists of approximately 270 miles of sewer pipelines, ranging in size from 4 to 48 inches in diameter, and seven sewage pump stations. The system collects wastewater generated within the City as well as flows from the major portion of the Cupertino Sanitary District via a connection at Homestead Road and Swallow Drive. Flow is conveyed eastward to the City of San Jose's interceptor sewer on Zanker Road. It is also conveyed northward to the Northside and Rabello Pump Stations, where it is pumped to the San Jose/Santa Clara Regional Wastewater Facility for treatment and disposal.
The hydraulic model was originally created as part of the City's 2007 Sanitary Sewer Capacity Assessment (SSCA) for developing wastewater flow projections and future capacity needs for the City's sanitary sewer. The model was updated and recalibrated as part of the 2016 Sanitary Sewer Master Plan Update (Master Plan Update). The updated model helps to guide capacity improvement planning for the City's sanitary sewer system. Accurate capacity improvement planning ensures that the City continues to provide a high level of service to its customers.
Since 2008, the model has been utilized to assess capacity impact of over one hundred proposed development projects. Developments with intensified land use may need to be reviewed for capacity impacts on the sanitary sewer system. The model requires regular maintenance updates to ensure it contains the latest and accurate information of the sanitary sewer system. Approval of this agreement would allow the City to keep the sanitary sewer system model up to date and provide un-interrupted sanitary sewer capacity review services for development projects.
DISCUSSION
The City currently has a sanitary sewer hydraulic modeling support agreement with Woodard and...
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