DATE: September 28, 2021
TO: Mayor and City Council
FROM: Director of Public Works
SUBJECT
Adopt a Resolution Authorizing the City Manager to Amend the Professional Services Agreement with Carollo Engineers, Inc., to Increase the Contract Amount by $61,849 for a Not-to-Exceed Amount of $1,132,877 to Provide Additional Construction Support Services for the Water Pollution Control Facility Headworks Bar Screens Project
RECOMMENDATION
That Council adopts a resolution (Attachment II) authorizing the City Manager to amend the professional services agreement (PSA) with Carollo Engineers, Inc., to increase the contract amount by $61,849 for a not-to-exceed amount of $1,132,877 to provide additional construction support services for the Water Pollution Control Facility Headworks Bar Screens Project.
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. This project includes installing new bar screens to replace the grinders. Bar screens are much more effective at removing increasingly popular disposable wipes and are typically employed throughout the industry in headworks designs. This project also includes: screenings conveyance; screenings washer compactor to consolidate the screenings for disposal; ventilation system improvements; lighting improvements; a new ferric chloride storage and feed facility; and odor control facilities. Construction of the Headworks Bar Screens Project is well underway with project completion scheduled for January 2022.
On April 9, 2019, the City entered into a PSA with Carollo Engineers, Inc. (Carollo) to provide engineering, design, and construction support services for the Headworks Bar Screens Project. Staff is requesting to amend the contract not-to-exceed amount of $1,071,028 by $61,849 to include additional items in the scope of services and to address unforeseen construction conditions, for a new not-to-exceed amount of $1,132,877.
ATTACHMENTS
Attachment I Staff Report
Attachment II Resolution