DATE:
September 8, 2026
CATEGORY:
Consent
DEPT.:
Public Works
TITLE: Middlefield and Moffett Sewer
Replacement, Project 22-42–Various
Actions
RECOMMENDATION
1. Approve plans and specifications for the Middlefield and Moffett Sewer Replacement, Project 22-42, and authorize staff to advertise the project for bids.
2. Authorize the City Manager or designee to award the construction contract to the lowest responsive responsible bidder if the bid is within the total project budget of $10,440,000.
3. Find that in accordance with California Environmental Quality Act (CEQA) requirements, Middlefield and Moffett Sewer Replacement, Project 22-42, is categorically exempt as Class 2, Replacement or Reconstruction, under CEQA Guidelines (Title 14, Division 6, Chapter 3, Article 3 of the California Code of Regulations), Section 15302(c).
4. Authorize the City Manager or designee to amend the professional services agreement with BKF Engineers, a California corporation (Entity No. 599256), for Middlefield and Moffett Sewer Replacement, Project 22 -42, increasing compensation by $73,000 for additional design services, for a total amount not to exceed $700,000.
5. Authorize the City Manager or designee to execute a professional services agreement with Tanner Pacific, Inc., a California corporation (Entity No. 3876190), to provide construction management and inspection services for Middlefield and Moffett Sewer Replacement, Project 22-42, in a not-to-exceed amount of $635,000.
BACKGROUND
The 2017 Utility Alignment and Constructability Study, Project 12-38, evaluated the vulnerability of utility crossings of major highways and creeks and identified the improvements and/or redundancies required to provide reliable services to the community. One such crossing is a sewer main that crosses Stevens Creek and Highway 85 by Moffett Boulevard. Due to challenges with Valley Water objectives for Stevens Creek, the City could not rehabilitate the City’s existing sewer main that currently traverses Stevens Creek. As a result, staff devised a strategy to
Middlefield and Moffett Sewer Replacement, Project 22-42–Various Actions September 8, 2026
eliminate the Stevens Creek and Highway 85 sewer crossings. Part of this change in sewer alignment was completed in 2020, with the elimination of a sewer main that previously crossed the Ameswell Hotel parcel at 750 Moffett Boulevard.
On September 13, 2022, Council approved a $627,000 professional design services contract with BKF to provide civil engineering services for the Middlefield and Moffett Sewer Replacement , Project 22-42. The project scope consists of reversing the flow direction of the Moffett Boulevard sewer main west of Highway 85, away from the sewer main to be abandoned, and directing flow to the West Middlefield Road main via a new pipe (Figure 1) . Due to conflicts with the San Francisco Public Utilities Commission ’s (SFPUC) potable water mains, which cross the Moffett Boulevard and Middlefield Road intersection, a section of the new sewer main is proposed along the southeastern corner of the U.S. Army (Shenandoah) property.
Figure 1: Location Map
Middlefield and Moffett Sewer Replacement, Project 22-42–Various Actions September 8, 2026
ANALYSIS
The Middlefield Moffett Sewer Realignment, Projects 22 -42, will install and replace approximately 3,400 linear feet of 8” and 15” sewer mains along West Middlefield Road and Moffett Boulevard (Figure 1). In addition, staff successfully negotiated a 20-foot width sanitary sewer easement and temporary construction easement within U.S. Army land on its Shenandoah site to accommodate the final sewer main alignmen t. In developing the sanitary sewer alignment, staff prioritized preserving the heritage trees within the West Middlefield Road median and the Shenandoah site.
Plans and specifications for the project are complete and available for viewing in the Public Works Department. If Council approves the recommended actions and a responsive and responsible bid within the project budget is received, construction is anticipated to begin at the beginning of 2027 and be completed in fall 2027.
Design Consultant Services
Due to the extended design timeline and the need for engineering documents to support negotiations with the U.S. Army for the easement, additional funds are needed for the design contract with BKF. S taff is requesting to add $73,000 and amend the professional services agreement, increasing the total not-to-exceed contract amount to $700,000.
Construction Management and Inspection Services
The Public Works Department occasionally utilizes consultants to supplement staff and provide construction engineering and inspection services as needed to ensure the timely project delivery.
In 2024, a Request for Qualifications process established a list of pre -qualified consultants for construction management and inspection services. For this project, staff solicited a proposal from one of these pre-qualified firms, Tanner Pacific, Inc. (TPI), and evaluated the response based on expertise, availability, and service fees. TPI was determined to be suitable due to their extensive experience with similar projects , including those within the City. The recommended fee of $635,000 for basic services, reimbursable expenses, and additional services for unforeseen items is within the range typically charged for such services.
Environmental Clearance
In accordance with the requirements of the California Environmental Quality Act (CEQA), th e project has been determined to be categorically exempt as Class 2, Replacement or Reconstruction, pursuant to Article 19, Section 15302(c), as it consists of replacement of existing public facilities involving negligible or no expansion of capacity at the same site. Staff recommends that Council make a finding that in accordance with the CEQA requirements, the Middlefield and Moffett Sewer Replacement, Project 22-42–Various Actions September 8, 2026
project is categorially exempt as Class 2, Replacement or Reconstruction, under CEQA guidelines (Title 14, Division 6, Chapter 3 of the California Code of Regulations) Section 15302(c).
FISCAL IMPACT
The Middlefield and Moffett Sewer Replacement, Project 22-42, is funded with $7,090,000 from the Wastewater Fund and $ 3,350,000 from the Wastewater Capacity Fund for a total project budget of $10,440,000.
The estimated project cost is as follows:
Construction $ 5,200,000
Construction Contingency 750,000
Project Management 200,000
Design Consultant Services 700,000
Construction Management and Inspection 635,000
Permits, Project Contingency, and Miscellaneous 255,000
Subtotal $ 7,740,000
City Administration 504,000
Total Project Cost Estimate $ 8,244,000
The project has sufficient funds for the recommended actions. No additional appropriation is being requested at this time.
LEVINE ACT
California Government Code Section 84308 (also known as the Levine Act) prohibits city officials from participating in any proceeding involving a “license, permit, or other entitlement for use” if the official has received a campaign contribution exceeding $500 from a party, participant, or agent of a party or participant within the last 12 months. The Levine Act is intended to prevent financial influence on decisions that affect specific, identifiable persons or participants. For more information see the Fair Political Practices Commission website: www.fppc.ca.gov/learn/pay-to- play-limits-and-prohibitions.html
Please see below for information about whether the recommended action for this agenda item is subject to or exempt from the Levine Act.
SUBJECT TO THE LEVINE ACT
☒ Competitively bid contract
Middlefield and Moffett Sewer Replacement, Project 22-42–Various Actions September 8, 2026
ALTERNATIVES
1. Approve the plans and specifications, but direct staff to defer construction.
2. Provide other direction.
PUBLIC NOTICING
In addition to the standard agenda posting, staff sent notices to occupants and property owners within 750’ of the project.
Prepared by:
Jason Chou
Senior Civil Engineer
Reviewed by:
Tina Tseng
Principal Civil Engineer / Engineering and
Environmental Compliance
Approved by:
Lisa Au
Assistant Public Works Director
Audrey D. Seymour
Assistant City Manager
cc: APWD—Arango, Au, USM, PCE—Shah, Tseng, SCE—Chou, SMA—Nunez, SMA—Truong, File (Project 22-42), [email protected]