3080 Bristol Street, #520 • Costa Mesa, California 92626
April 24, 2026
Ms. Tanya Williams
City Manager
City of Rialto
150 South Palm Avenue
Rialto, CA. 92376
SUBJECT: Proposal to Provide Additional Staffing Support Services
Dear Ms. Williams,
Dopudja & Wells Consulting (Dopudja & Wells) has been requested to prepare a proposal to extend additional consulting support services. This proposal includes two primary areas of support as outlined below.
Scope of Work
Task 1. Additional Interim Staffing Support Related to the Utility Department With the recent reorganization of the Utility Department, Dopudja & Wells was requested to provide additional support. Our temporary support effort covers the period from the end of our prior amendment and is expected to occur through the end of October 2026. During this period our role will progressively decrease as we transition support over to the reorganized Utility Department. Dopudja & Wells will control our work and the manner in which it is performed. During this period Dopudja & Wells will continue to have no control over the conduct of the City’s officers, employees, or agents. Dopudja & Wells will not at any time or in any manner represent that it or any of its officers, employees, or agents are in any manner officers, employees, or agents of the City. Dopudja & Wells shall not incur or have the power to incur any debt, obligation, or liability whatever against the City, or bind the City in any manner. No City employee benefits shall be available to Dopudja & Wells in connection with the performance of the scope of work pursuant to the Agreement with the City. As requested by the City , we are proposing Mr. John Rossi in the primary duties of providing consulting support to the City. Additionally, the City has requested Mr. Stephen Dopudja and Mr. Jason Pivovaroff to continue to support the department with technical and Concession Agreement expertise. Lastly, the City is experiencing a higher pace of infill/developments, predominantly in the sewer service areas. These include residential, commercial/industrial developments. As a result, additional hydraulic modeling has been requested beyond historic levels. All of the work in this work will be performed on an as-needed basis. Below is a table to reflect the anticipated level of support and reductions through October 2026.
Tanya Williams
April 24, 2026
3080 Bristol Street, #520 • Costa Mesa, California 92626 Period
Hours Per Week
Principal
(Dopudja)
Senior/
Consultant
(Pivovaroff)
Senior/
Consultant
(Rossi)
Project Engineer
(Wells/Connell)
May 2026 - July 2026 16 24 16 4
Aug 2026 - Oct 2026 8 20 8 4
Note: The budget also includes approximately 2% for administrative support and 1.5% for reimbursables.
Task 2. Project Management and Administration
Project management and administrative activities include coordination of project activities with City staff, management of internal project staff, monitoring of budget, and invoice preparation.
Proposed Fee
The tasks in the Scope of Work described above will be performed on a time and materials basis, which will include reimbursable mileage (billed at the IRS mileage rate). Monthly invoice amounts may vary, depending on assignments. However, Dopudja & Wells will not exceed the fee for the total period of the engagement without written authorization from the City of Rialto. The proposed Task 1 and 2 fees and anticipated schedules are Shown in Table 1 below. Should the Utility Department restructuring result in less needs by the City from Dopudja & Wells, the proposed hours would not be billed to the City.
Table 1 - Fees for Services
Task Description
Amount ($) Estimated Schedule
(Months)
1 Additional Interim Staffing Related to the Utility Department Reorganization $505,830 6 2 Project Management and Administration $24,680 6
Total $530,510
Note: All mileage will be billed at the current IRS rate. All sub-consulting agreements are reimbursed at cost plus 10%.
Dopudja & Wells understands the importance of this project to the City of Rialto, and we look forward to assisting the City. Please do not hesitate to contact Stephen Dopudja via email at [email protected] or at 949-842-4370 if there are any questions.
Sincerely,
Dopudja & Wells Consulting
Stephen Dopudja, P.E.
President/CEO
RCE #65187