Contract Amendment Page 1 of 7
CAO Approved June 2024
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6 AMENDMENT NO. 2 TO THE AGREEMENT
BETWEEN THE CITY OF SAN MATEO AND
HDR ENGINEERING, INC. FOR
PROFESSIONAL DESIGN SERVICES FOR MOTOR CONTROL CENTER (MCC) REPLACEMENT
PROJECT
($75,665 [Original Amount], $12,630 [Amendment No. 1], $156,129 [Amendment No. 2]) This Amendment is made and entered into this day of ______________, by and between the CITY OF SAN MATEO, a municipal corporation existing under the laws of the State of California (“CITY”), and HDR ENGINEERING, INC. (“CONSULTANT”).
WHEREAS, the CITY and CONSULTANT entered into an Agreement for professional design services (“Agreement”) on November 13, 2025; and
WHEREAS, on February 25, 2026, the CITY and CONSULTANT executed Amendment No. 1 to the Agreement to add additional scope of services to Task 2 in order to advance the design phase of this project, and an increase to the compensation by $12,630, for a new Agreement total not to exceed $88,295; and
WHEREAS, CITY and CONSULTANT wish to amend the Agreement to add additional scope of services to Tasks 1, 2 and 3 in order to complete the design phase of this project, and increase the compensation by $156,129, for a new Agreement total not to exceed $244,424.
NOW, THEREFORE, the parties agree as follows:
1. Section 1, “Scope of Project,” of the Agreement is amended to read:
“The scope of services to be performed by CONSULTANT under this Agreement is described in Exhibits A, A1, and A2, attached and incorporated by reference.” Exhibit A2 to the Agreement is attached and incorporated by reference.
2. The first paragraph of Section 8, “Payment,” of the Agreement is amended to read:
“Payment shall be made by the CITY only for services rendered and upon submission of a payment request upon completion and CITY approval of the work performed. In consideration for the full performances of the services and any reimbursable expenses set forth in this Agreement, CITY agrees to pay CONSULTANT a fee based on verified time and materials not to exceed $244,424. Requests for payments shall be itemized and correspond to the various items of work described in Exhibits A, A1, and A2 and based on the rate and cost schedule set forth in Exhibits B, B1, and B2, attached and incorporated by reference.” Exhibit B2 to the Agreement is attached and incorporated by reference.
3. The remaining terms of the Agreement remain in full force and effect.
Contract Amendment Page 2 of 7
CAO Approved June 2024
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6 IN WITNESS WHEREOF, CITY OF SAN MATEO and HDR ENGINEERING, INC., have executed this Amendment No. 2 on _______________________.
CITY OF SAN MATEO CONSULTANT
Matt Fabry
Public Works Director
Date Elizabeth K. Mesbah Date
Its Authorized Agent
Senior Vice President
APPROVED AS TO FORM
Linh P. Nguyen
Assistant City Attorney
Date
Exhibit A2
Scope of Services
Attachment A
Scope of Services
City of San Mateo Clean Water Program
Motor Control Center (MCC) Replacement
Project Management, Construction
Document, and Bid Period Services
BACKGROUND
The scope of this amendment will include work under the following tasks of the MCC Replacement project: Task 1 (Project Management); Task 2 (Contract Documents); and Task 3 (Bid Period).
Since execution of the previous Agreement, the City has identified and requested additional scope be added to the project. The added scope requires supplemental engineering services, including mechanical, structural, and civil design efforts. In addition to the expanded technical scope, the opinion of probable construction costs (OPCC) will be updated based on the modified design scope. This amendment accounts for the associated fee for Ewing Construction Services.
Furthermore, the extended design schedule resulting from the additional scope has required increased project management and coordination efforts.
The additional or modified scope, as previously discussed with the City, includes the following:
HVAC demolition and replacement in the MCC room in the main structure and associated wall repairs.
New conduits to and from MCC 1P1.
New electrical vaults with integrated sumps and sump pumps if draining by gravity is not feasible.
Modified connection between MCC 1P3 and the old administration building. Scope from the GMP-3 project, including the feeders to existing MCC-P3 (future MCC-20020). Modified sequencing plan and temporary power plan to incorporate City’s decision to install new duct banks and electrical vaults in lieu of using the existing ones.
This amendment assumes the above tasks will be completed by the end of November 2026.
SCOPE OF WORK
Task 1 – Project Management
Under Task 1, HDR will manage the scope, budget, and schedule, as well as coordinate with the owner’s representative and City. This task includes document management as well as staff management.
Additionally, this task includes monthly progress reports and monthly invoices. Task 1 includes the following activities:
HDR will provide up to six hours per month of project management time for processing invoices, general project coordination on schedule and budget, as well as coordination with the City and owner’s representative.
HDR will attend up to two biweekly meetings with the City and Owner’s Representative (2 hours per month)
HDR will provide up to two hours per month of project accounting services related to preparation and processing of invoices.
HDR will provide up to two hours per month of project administration services related to document management.
Assumes a five-month duration for this task.
Task 2 – Contract Documents
Under Tast 2, HDR will provide the following services:
HDR will develop the mechanical, civil, and structural design for the additional scope described above.
The modified Contract Documents will include no more than 35 additional drawings and 10 additional specifications that were not included in the original Project Scope to address the new scope.
DR will provide two design package submittals under Task 2:
Preliminary design submittal to be reviewed by a third party and the City Biddable, conformed, final design package
HDR will review and respond to comments provided by the third-party reviewer on the preliminary design submittal.
Ewing Construction Services will update the Opinion of Probable Construction Costs (OPCC) for the City’s review and use for the updated Project scope. The cost estimates will consider labor and material costs, as well as costs associated with temporary power anticipated to be required during construction. This deliverable will be provided with the final design submittal. The additional design services will include up to two site visits from HDR’s Electrical, Civil, Mechanical, and Structural Engineers.
Task 3 – Bid Period
Under Task 3, HDR will assist the City with conducting one job walk and attend the pre-bid conference to meet with prospective contractors and answer questions relating to the design. HDR will provide additional assistance during the bid period including up receiving and recording contractor questions, and issuing one addendum to the Contract Documents, if needed.
This amendment allows for support from the Electrical, Civil, Mechanical, and Structural Engineers during the bid period for one addendum. This assumes 8 hours for each discipline lead to respond to bidder questions and prepare the addendum.
Exhibit B2
Fee and Rate Schedule
Table 1 - Estimated Work Effort and Cost
San Mateo
Motor Control Center (MCC) Rep
Task Task Description Project
Manager
Assistant
Project
Manager
Engineer
Electrical
Engineer
Electrical Sr
Project
Quality
Manager
Mechanical
Engineer Sr
Mechanical
Engineer
Mechanical
QC
Civil
Engineer Civil QC Senior Structural
Engineer QC
CAD
Support
Structural
Engineer
Project
Accountant 1
Admin Project
Coordinator
Total HDR
Labor Hours
Total HDR
Labor
($)
Sub Consultant
Cost ($)
Sub Consultant
Mark up
($)
Total Cost
($)
Task 1 - Project Management
1.1 Project Management 5 35 10 10 60 11,237.57 0.00 0.00 11,237.57 Subtotal Task 1 5 35 0 0 0 0 0 0 0 0 0 0 0 10 10 60 11,237.57 0.00 0.00 11,237.57 Task 2 - Contract Documents
2.1 Contract Documents 24 40 90 50 12 50 124 8 72 24 34 56 50 634 130,208.06 8,300.00 415.00 138,923.06 Subtotal Task 2 24 40 90 50 12 50 124 8 72 24 34 56 50 0 0 634 130,208.06 8,300.00 415.00 138,923.06 Task 3 - Bid Period
3.1 Bid Period 8 8 8 24 5,968.03 0.00 0.00 5,968.03
Subtotal Task 3 0 0 0 0 0 8 0 0 8 0 8 0 0 0 0 24 5,968.03 0.00 0.00 5,968.03 COLUMN TOTALS 29 75 90 50 12 58 124 8 80 24 42 56 50 10 10 718 $ 147,414 $ 8,300 $ 415 $ 156,129 7/10/2026 HDR Engineering, Inc.