Title:
Title
Supplemental Agreement: Florin Reservoir Air Quality Improvements to the Back-Up Engine Project
End
FileID
File ID: 2019-00535
Location
Location: District 6
Recommendation:
Recommendation
Pass a Motion authorizing the City Manager or the City Manager’s designee to execute Supplemental Agreement No. 1 to City Agreement 2018-0656 with HydroScience Engineers Inc. to provide additional design services and construction support services for the Florin Reservoir Air Quality Improvements to the Back-Up Engine Project, for an amount not-to-exceed $141,653, bringing the agreement’s total not-to-exceed amount to $269,061, and extending the agreement term to June 30, 2020.
Contact: Megan Thomas, Project Manager (916) 808-1729; Michelle Carrey, Supervising Engineer (916) 808-1438; Dan Sherry, Engineering & Water Resources Division Manager, (916) 808-1419; Department of Utilities
Body
Presenter: None
Attachments:
1-Description/Analysis
2-Supplemental Agreement No. 1
Description/Analysis
Issue Detail: Staff recommends Council approve Supplemental Agreement No. 1 with HydroScience Engineers, Inc. to provide additional design services and construction support services for the Florin Reservoir Air Quality Improvements to the Back-Up Engine Project. All of the improvements associated with this design are to ensure a safe working environment for staff and better monitoring of the water flow and pressures through the facility.
Policy Considerations: The proposed supplemental agreement exceeds the City Manager’s approval authority, requiring Council approval. This work is consistent with the criteria set forth in the Department of Utilities (DOU) Capital Improvement Project Programming Guide to rehabilitate, replace, and expand critical infrastructure to ensure reliability and safety.
Economic Impacts: None.
Environmental Considerations: Per the California Environmental Quality Act (CEQA)Guidelines Section 15061(b)(3), approval of the proposed Supplemental Agreement is exempt from the CEQA, under the general rule that CEQA only applies to actions with potential to significantly affect the environment. Approval of this Supplemental Agreement for additional engineering services will not affect the environment. Appropriate evaluation and documentation of the environmental effects of the project as required by CEQA will be completed prior to future project approval.
Sustainability: The proposed project is consistent with the 2035 General Plan by improving infrastructure reliability, which will ensure continued safe operation and maintenance of the existing facilities at Florin Reservoir and Pump Station.
Commission/Committee Action: Not applicable.
Rationale for Recommendation: Originally, there were three separate projects in design to make improvements to the Florin Pump Station. Upon further review, City staff evaluated the designs and determined it would be more cost effective to combine these projects, due to common impact points such as parallel conduit installation, concrete work, and shutdown needs at the site. The proposed supplemental agreement will provide support services necessary for the separate projects to proceed as one coherent project.
In addition, since the project contains structural, air quality, and electrical improvements that are not typically assessed by in-house staff, Supplemental Agreement No. 1 provides special inspection to ensure the construction is built per plans and meets regulatory requirements.
Financial Considerations: The original Florin Reservoir Back-Up Engine contract has a not-to-exceed amount of $127,408. The proposed Supplemental Agreement No. 1, with HydroScience Engineers, Inc. in the amount of $141,653 will increase the not-to-exceed amount to $269,061. Sufficient funds are available in the Florin Reservoir Back-Up Engine Project (Z14130100) to execute the agreement.
There are no General Funds allocated or planned for this project.
Local Business Enterprise (LBE): HydroScience Engineers, Inc. is an LBE.
Background: The City of Sacramento Florin Reservoir, including the Florin Pump Station, is a vital component of the City’s water distribution system. Besides being a significant water storage site, the pump station is used to manage water pressure throughout the distribution system.
The pump station was originally constructed in 1972 with three engine driven pumps and provisions for future storage and pumping capacity. Since that time, with the routine use of all three pumps, there is concern of not having adequate redundant pumping to allow for preventative maintenance on the pumps.
In response to this concern, DOU contracted with Carollo Engineers, Inc. to complete a pre-design report for the site including a review of pump sizing and selection, the potential installation of electric pumps and motors, assessment of the site access, assessment of the air quality and venting of the building, and review of the electrical system and controls.
Based on the results of the report, staff established the Florin Reservoir Back-Up Engine Project, consisting of several enhancements designed to improve the reliability of the Florin Reservoir. Part of these improvements include the design and construction of an improved venting system, upgrades to the secondary emergency exit, and replacement flow meters to the site.
The existing agreement with HydroScience addressed only the design for the improved venting system. The design for the flow meters and the secondary exit were already completed but had not yet gone out for construction. Supplemental Agreement No. 1 will extend the contract with HydroScience to merge the completed designs for the venting system, secondary exit, and flow meters into a single construction bid set. The supplemental will also provide needed specialty inspection and construction support when these improvements go out for public bid later this year.