FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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SANTA ANA TRUNK SEWER REHABILITATION, PROJECT NO. 1-23
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION: Recommend to the Board of Directors to:
A. Approve a Professional Construction Services Agreement with Stantec Consulting Services, Inc. to provide construction support services for Santa Ana Trunk Sewer Rehabilitation, Project No. 1-23, for a total amount not to exceed $2,700,000; and
B. Approve a contingency of $270,000 (10%).
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BACKGROUND
Stantec Consulting Services, Inc., was selected as part of a competitive, qualifications-based solicitation process to design Santa Ana Trunk Sewer Rehabilitation, Project No. 1-23. At the time of the solicitation, the Orange County Sanitation District (OC San) documented its intent to award a subsequent agreement to the design consultant for continuation of engineering services during construction.
This project will rehabilitate a portion of the Santa Ana Trunk Sewer north of Interstate 405. This will include rehabilitation of approximately 15,000 feet of large diameter sewers and associated manholes in the cities of Santa Ana and Costa Mesa using the cured-in-place (CIPP) trenchless rehabilitation method.
RELEVANT STANDARDS
• Comply with California Government Code Section 4526 to engage the best qualified firm “on the basis of demonstrated competence and qualifications” and “negotiate fair and reasonable fees”
• Protect OC San assets
PROBLEM
This project requires the design consultant to provide as-needed services during construction including submittal review, responding to the contractor’s requests for information, reviewing construction change orders, participating in meetings, attending site visits, and preparing record drawings.
PROPOSED SOLUTION
Award a Professional Construction Services Agreement with the design consultant, Stantec Consulting Services, Inc., to provide engineering support services during the construction phase.
TIMING CONCERNS
Engineering support services will be required at the start of construction. Construction is anticipated to start in January 2026.
RAMIFICATIONS OF NOT TAKING ACTION
The engineering support services needed to facilitate and review construction activities would not be available by the Engineer of Record, which may negatively impact the contract execution.
PRIOR COMMITTEE/BOARD ACTIONS
April 2022 - Approved a Professional Design Services Agreement with Stantec Consulting Services, Inc. to provide engineering services for Santa Ana Trunk Sewer Rehabilitation, Project No. 1-23, for an amount not to exceed $3,880,000 and approved a contingency of $388,000 (10%).
ADDITIONAL INFORMATION
Stantec Consulting Services, Inc. has successfully furnished engineering services for the design of this project and their support services during construction will provide continuity through the completion of the project.
Staff negotiated with Stantec Consulting Services, Inc. for these support services in accordance with OC San’s adopted policies and procedures. A review of the proposed price was conducted using estimated quantities of requests for information, submittals, meetings, site visits, change order reviews, and design revisions, as well as the level of effort for preparing record drawings. Based on this review, staff determined the negotiated fee to be fair and reasonable for these services.
CEQA
The project is exempt from CEQA under Class 1, 2, and 3 categorical exemptions set forth in California Code of Regulations Sections 15301 and 15303. A Notice of Exemption was filed with the OC Clerk-Recorder on April 29, 2022.
FINANCIAL CONSIDERATIONS
This request complies with the authority levels of OC San’s Purchasing Ordinance. This item has been budgeted (Budget Update FY 2025-26, Page A-5, Santa Ana Trunk Sewer Rehabilitation, Project No.1-23), and the budget is sufficient for the recommended action.
ATTACHMENT
The following attachment(s) may be viewed on-line at the OC San website (www.ocsan.gov) with the complete agenda package:
• Draft Professional Construction Services Agreement
• Presentation
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