REPORT TO COUNCIL
SUBJECT
Title
Action on Amendment No. 2 to the Agreement with Woodard and Curran, Inc. for Sanitary Sewer Hydraulic Modeling As-Needed Support
Report
COUNCIL PILLAR
Deliver and Enhance High Quality Efficient Services and Infrastructure
BACKGROUND
In March 2018, the City conducted a competitive Request For Proposals (RFP) process for design professional services to assist in maintaining the City's sanitary sewer system hydraulic model (model) and evaluation of sanitary sewer system capacity for development and sewer repair projects on an as-needed basis. Through this process, Woodard and Curran, Inc. was selected and on June 26, 2018 City Council awarded a three-year agreement. On August 18, 2020, City Council approved Amendment No. 1 to the agreement, which updated the scope of work to include additional work efforts related to updating the City's Sanitary Sewer Master Plan. Amendment No. 1 increased the total not-to-exceed amount of the agreement to $973,636 and extended the term for one year to June 30, 2022.
The model is used to evaluate impacts on the sanitary sewer system of proposed developments with higher-than-projected densities or flows in the 2035 General Plan. These types of evaluations are paid for through developer fees. To ensure the model contains the latest and most accurate information on the sanitary sewer system, it requires regular maintenance updates. As part of the citywide sewer condition assessment program, sewer mains are routinely inspected and repaired/replaced, and this model is used to analyze the sewer systems conveyance capacity. Once repairs or improvements are constructed, the model is updated to reflect the changes with the latest data.
This model is also utilized to review Specific Plan impacts on the sewer conveyance capacity, such as the Patrick Henry Drive Specific Plan (PHDSP). In May 2020, the sewer model run analysis found that multiple capacity improvement projects would be required in order to con...
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