DATE: April 9, 2019
TO: Mayor and City Council
FROM: Director of Public Works
SUBJECT
Title
Authorization for the City Manager to Execute a Professional Services Agreement with Carollo Engineers for Engineering Services for the WPCF Headworks Bar Screens Project (No. 07567) in an amount not-to-exceed $1,071,028
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RECOMMENDATION
Recommendation
That Council adopts the attached resolution authorizing the City Manager to execute a professional services agreement with Carollo Engineers for engineering services for the WPCF Headworks Bar Screens Project in an amount not-to-exceed $1,071,028.
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SUMMARY
The Water Pollution Control Facility (WPCF) collects and treats wastewater from the City’s residents and businesses. The WPCF headworks facility is the first treatment process in the plant and is responsible for removing large debris that can harm downstream pumps and other equipment. Currently, the headworks relies on grinders to protect downstream equipment. In recent years with the increasing popularity of “disposable” wipes, downstream processes have been impacted by the inability of the grinders to remove these wipes that cause pumps and pipes to clog. In addition, wipes collect in the digesters reducing their capacity and causing them to be removed from service more frequently for cleaning. This project includes installing new bar screens to replace the grinders. Bar screens are much more effective at removing wipes and are typically employed throughout the industry in headworks designs. This project also includes related evaluations and optional design services for the ferric chloride and odor control facilities.
ATTACHMENTS
Attachment I Staff Report
Attachment II Resolution
Attachment III Scope of Work