Imperial County, California
Department of Public Works
“Public Works works for the Public”
REQUEST FOR PROPOSALS
ON-CALL, AS NEEDED, MECHANICAL ENGINEERING SERVICES
COUNTY PROJECT NO. 6685PWS
Requested by:
John A. Gay, PE
Director of Public Works
Prepared By:
Alfonso Varela
Administrative Analyst II
Deadline for Submissions: Monday, January 19, 2026 by 4:00 P.M
Imperial County
Department of Public Works
155 S. 11th Street
El Centro, CA 92243
PROPOSALS MUST BE SUBMITTED ON THE SPECIFIED DATE AND TIME. THE COUNTY WILL NOT
CONSIDER PROPOSALS RECEIVED AFTER THE DUE DATE. AN AMENDMENT IS CONSIDERED A NEW
PROPOSAL AND WILL NOT BE ACCEPTED AFTER THE SPECIFIED DATE AND TIME.
November 24, 2025
As Needed, On Call, Mechanical Engineering Services
SPECIAL NOTICE No. 1
Notification of Consultant Registration Requirements (where required)
Pursuant to the requirements of California Labor Code section 1771.1, all consultants and sub-consultants
that wish to engage in public work through a public works contract must be registered with the Department
of Industrial Relations (DIR).
Beginning March 1, 2015, no consultant or sub-consultant may be listed on a bid proposal for a public
works project unless registered with DIR.
Beginning April 1, 2015, no consultant or sub-consultant may be awarded a contract for public work on a
public works project unless registered with the DIR, pursuant to Labor Code section 1725.5
All consultants, including sub-consultants, listed in the proposal must be registered with the DIR at the
time proposals are due, and must submit proof of registration with the proposal. Any proposals
received listing unregistered consultants and/or sub-consultants will be deemed non-responsive.
NOTE: DIR number is to be specified on the cover page of the consultant proposal. Proof of registration
for consultant and sub consultant shall also be submitted as an exhibit of the proposal.
Application and renewal are completed online with a non-refundable fee of $400. Read the Public Works
Reforms (SB 854) Fact Sheet for requirements. Instructions for completing the form and additional
information can be found on the DIR website.
This Project is subject to compliance monitoring and enforcement by the Department of Industrial
Relations.
SOURCES OF INFORMATION
INFORMATION
Department of Industrial Relations
(Public Works)
SB 854 Fact Sheet
Senate Bill 854 Compliance
Public Works Contractor (PWC)
Registration
Classifications and Minimum
Labor Rates
WEBSITE
http://www.dir.ca.gov/Public-Works/PublicWorks.html
http://www.dir.ca.gov/Public-
Works/PublicWorksSB854.html
http://www.dir.ca.gov/Public-Works/SB854.html
https://www.dir.ca.gov/Public-Works/Contractor-
Registration.html
http://www.dir.ca.gov/OPRL/Pwd/
RFP Issued: Monday, November 24, 2025 Due: Monday, January 19, 2026 by 4:00pm
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As Needed, On Call, Mechanical Engineering Services
TABLE OF CONTENTS
I.
PURPOSE AND BACKGROUND............................................................................. 04
II. PROJECT POSTING AND SCHEDULING ............................................................ 04
III. SCOPE OF WORK ..................................................................................................... 05
IV. ASSIGNMENT OF WORK........................................................................................ 09
V. RESPONSIBILITY OF COUNTY ............................................................................ 10
VI. PROPOSAL CONTENT AND FORMAT................................................................. 10
VII. PROPOSAL EVALUATION ..................................................................................... 12
VIII. PROPOSAL SUBMITTAL ........................................................................................ 12
IX. CONSULTING AGREEMENT AND INSURANCE REQUIREMENTS ............. 13
X. CLOSING ITEMS....................................................................................................... 13
XI. QUESTIONS AND CONTACT INFORMATION................................................... 14
TABLE
1. PROCUREMENT TIMELINE ........................................................................................ 05
EXHIBITS
A. PROPOSAL EVALUATION
B. SAMPLE CONSULTANT AGREEMENT AND INSURANCE REQUIREMENTS
*THE CONSULTING FIRM MUST REVIEW THE ATTACHED SAMPLE AGREEMENT
RFP Issued: Monday, November 24, 2025 Due: Monday, January 19, 2026 by 4:00pm
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As Needed, On Call, Mechanical Engineering Services
I. PURPOSE AND BACKGROUND
Imperial County Department of Public Works (ICDPW) is requesting proposals from qualified and
experienced professionals to provide on-call services. The selected firm(s) will assist the County with
various assignments for local, state, or federally funded projects. These services will be on an intermittent
basis.
The purpose of the Request for Proposals (RFP) is to provide ICDPW with the ability to obtain assistance
quickly during peak workload periods, staffing shortages, and when expedited/fast track support is needed
to satisfy the Department’s scheduling and needs. The County of Imperial will award multiple on-call
contracts to qualifying firms for Mechanical Engineering Services. The term of the as needed, on call
agreements shall be for one (1) year, with the option to renew for up to (4) additional one-year terms.
Unless otherwise terminated by ICDPW, upon expiration of the initial year, the agreement shall
automatically renew for successive one (1) year terms for four (4) one year periods for a total of five (5)
years.
Consultant hourly billing rates proposed at the time of award shall remain in effect for the initial one-year
term of the Agreement. Any proposed adjustment to hourly rates for subsequent renewal periods shall
require prior written approval from the Director of Public Works, or designee, before such rates may take
effect. Increased rates shall not be applied or invoiced without ICDPW approval, and any unauthorized rate
increase shall constitute a material breach of the Agreement and may be grounds for termination.
Each proposal will be scored in accordance with the Consultant’s qualifications and experience. The
aforementioned services will be conducted under a contract with the County of Imperial, hereinafter
referred to as "County" and the consultant entity, hereinafter referred to as "Consultant". The contract will
be regulated according to the provisions of all federal, state and local laws and ordinances that are
applicable. This includes compliance with prevailing wage rates and their payment in accordance with the
Davis Bacon Wage Determinations.
Note: The County enforces the American with Disabilities Act (ADA) using local, state and federal
guidelines and enforces the strictest of the ADA codes and regulations concerning existing and new facility
improvements.
Compensation for the as needed, on call, agreement shall be handled through task orders after consideration
of price quotes from consultants and will be financed through project specific sources.
The contract will be regulated according to the provisions of all federal, state and local laws and ordinances
that are applicable. This includes compliance with prevailing wage rates and their payment in accordance with
California Labor Code, Section 1774. All Service Providers and sub-consultant(s) shall pay all workers not
less than the general prevailing rate of per diem wages and the general prevailing rate for holiday and overtime
work as determined by the Director of the Department of Industrial Relations, State of California, for the type
of work performed and the locality in which the work is to be performed, pursuant to sections 1770 et seq. of
the California Labor Code. Prevailing wage rates are available on the Internet at: <http://www.dir.ca.gov>.
All Service Providers and sub-consultant(s) shall comply with the registration and qualification requirements
pursuant to sections 1725.5 and 1771.1 of the California Labor Code
II. PROJECT POSTING AND SCHEDULING
This RFP is being distributed electronically through the County of Imperial PlanetBids Procurement Portal at
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RFP Issued: Monday, November 24, 2025 Due: Monday, January 19, 2026 by 4:00pm
As Needed, On Call, Mechanical Engineering Services
the following address: https://vendors.planetbids.com/portal/64020/portal-home. Consultants wishing to
submit a proposal in response to this RFP must be registered on PlanetBids in order to access documents,
submit questions, and upload proposals and cost estimates. Instructions for registration are available on the
portal.
All solicitation documents, addenda, and official notifications will be posted on this portal. Consultants must
be registered with PlanetBids to download documents and receive notifications of updates. The portal will serve
as the official medium of communication for this solicitation. Prospective firms are responsible for monitoring
the portal for any addenda or amendments prior to submission.
TABLE 1 – PROCUREMENT TIMELINE (subject to change)
EVENT
Issue Request for Proposal
Last Day for Request(s) for Clarification
must be submitted in writing
Proposal Due
Consultant Selection
Agreement for Services
DATE
Monday
November 24, 2025
Monday
December 22, 2025 by 4:00pm
Monday
January 19, 2026 by 4:00pm
Mar 2026 / Apr 2026
Mar 2026 / Apr 2026
III. SCOPE OF WORK
Imperial County Department of Public Works is seeking proposals from qualified individuals, firms, and/or
consultants who demonstrate experience in the services being requested. Please note, all schedule of fees
must be uploaded as a separate file under the designated “Cost Proposal” section of the PlanetBids portal.
Do not include cost information within the main proposal upload.
The selected firm(s) will provide As Needed, On-Call Professional Mechanical Engineering Services that
include but are not limited to those mentioned herein. The County will assign work to any of the firms as
is deemed necessary and appropriate by the County.
All Service Providers and sub-consultant(s), employees or agents thereof, performing work per agreements
awarded pursuant to this RFP must, at all times during the performance of such work, maintain all
appropriate, valid license(s), certifications, or registrations required by law. If the possession of any
license(s) including, without limitation, a valid California professional engineer’s license in mechanical
engineering, is required under law for the performance of the work, the Service Provider must ensure that
the work is performed by, or under the direct supervision of, an appropriately licensed individual. No sub-
consultants shall be utilized without prior written authorization from the County.
The County’s use of consultant services will be on an as-needed basis, if demand does not exist, services
may not be requested. For each on-call service request, the consultant and the County will agree upon a
specific scope of work and associated cost. The County reserves the right, at its sole discretion, to retain
other consulting firms when it determines that doing so would provide an economic or other significant
advantage. Services under each contract will be provided on a negotiated, task order basis. No minimum
RFP Issued: Monday, November 24, 2025 Due: Monday, January 19, 2026 by 4:00pm
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This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.
