UW26006 REQUEST FOR PROPOSALS - RWCF ADDITION OF CENTRIFUGE SYSTEMS

REQUEST FOR PROPOSALS (RFP)
RWCF ADDITION OF CENTRIFUGE SYSTEMS
(PROJECT NO. UW26006)
PROPOSALS WILL BE RECEIVED UNTIL THE HOUR OF
2:00 O'CLOCK P.M., THURSDAY, JUNE 18, 2026,
IN THE OFFICE OF THE CITY CLERK,
FIRST FLOOR, CITY HALL, 425 NORTH EL DORADO STREET,
STOCKTON, CALIFORNIA 95202-1997

TABLE OF CONTENTS
NOTICE INVITING PROPOSALS ........................................................................ 3
PROPONENT'S CHECKLIST .............................................................................. 4
1.0 GENERAL INFORMATION ....................................................................... 5
1.1 REQUEST FOR PROPOSAL (RFP) PROCESS ....................................... 5
1.2 INVITATION TO SUBMIT A PROPOSAL ................................................. 5
1.3 LOCAL BUSINESS PREFERENCE .......................................................... 5
1.4 LOCAL EMPLOYMENT-PUBLIC WORKS CONTRACTORS ................ 6
1.5 CONSEQUENCE OF SUBMISSION OF PROPOSAL .............................. 6
1.6 ACCEPTANCE OR REJECTION OF PROPOSAL ................................... 6
1.7 RIGHT TO CHANGE OR AMEND REQUEST........................................... 7
1.8 CANCELLATION ....................................................................................... 7
1.9 EXAMINATION OF PROPOSAL MATERIALS ......................................... 7
1.10 ADDENDA AND INTERPRETATION ........................................................ 8
1.11 DISQUALIFICATION ................................................................................. 8
1.12 CONDITIONS IF WORK IS SUBCONTRACTED ...................................... 9
1.13 LICENSING REQUIREMENTS .................................................................. 9
1.14 INSURANCE REQUIREMENTS ................................................................ 9
1.15 INDEMNITY AND HOLD HARMLESS .................................................... 10
1.16 APPLICABLE LAW ................................................................................. 10
1.17 METHOD OF PAYMENT ......................................................................... 10
1.18 NOTICE TO OUT-OF-STATE VENDOR ................................................. 10
1.19 TERM ....................................................................................................... 11
1.20 COMPETITIVE PRICING ......................................................................... 11
1.21 AVAILABLE FUNDING ........................................................................... 11
1.22 TERMINATION FOR CONVENIENCE .................................................... 11
1.23 AUDITING OF CHARGES AND SERVICES ........................................... 11
1.24 PROPOSAL SECURITY .......................................................................... 12
1.25 CONTRACT BONDS ............................................................................... 12
1.26 CHANGES ............................................................................................... 12
1.27 AWARD ................................................................................................... 13
1.28 LIQUIDATED DAMAGES ........................................................................ 13
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1.29 PRODUCT OWNERSHIP ........................................................................ 13
1.30 CONFIDENTIALITY ................................................................................. 13
1.31 OTHER GOVERNMENTAL AGENCIES ................................................. 13
1.32 NON-MANDATORY PRE-PROPOSAL CONFERENCE ......................... 14
1.33 PREVAILING WAGES & CONTRACTOR/SUBCONTRACTOR REGISTRATION
REQUIREMENTS .................................................................................... 14
2.0 BACKGROUND/GENERAL NATURE OF SERVICE .............................. 16
2.1 SCOPE OF SERVICES ........................................................................... 16
3.0 PROPOSAL GUIDELINES, CONTENT AND FORMAT .......................... 19
3.1 EVALUATION PROCEDURE AND CRITERIA ....................................... 22
3.2 PROPOSED DEVELOPMENT COSTS ................................................... 23
3.3 PROPONENT CONTACT ........................................................................ 23
3.4 CITY'S USE OF PROPOSAL MATERIAL .............................................. 23
3.5 REJECTION OF PROPOSAL ................................................................. 23
PROPOSAL DOCUMENTS ............................................................................... 24
PROPONENT'S COVENANT ............................................................................ 25
NON-COLLUSION ............................................................................................. 26
CERTIFICATION OF FINANCIAL CONDITION ............................................... 265
Attachments to this RFP are linked below:
ATTACHMENT A - PRE-PROPOSAL MEETING LOCATION
ATTACHMENT B - CONSTRUCTION FRONT END SPECIFICATIONS
ATTACHMENT C - CENTRIFUGE VENDOR O&M
ATTACHMENT D - PROPOSED CENTRIFUGE FEED PUMP SPECIFICATIONS
ATTACHMENT E - CENTRATE PUMPS O&M
ATTACHMENT F - POLYMER BLENDING UNIT O&M
ATTACHMENT G - SHAFTLESS SCREW CONVEYER O&M
ATTACHMENT H - STOCKTON RWCF RECORD DRAWINGS
ATTACHMENT I - GEOTECHNICAL REPORT
ATTACHMENT J - CONTRACTOR INFORMATION VOLUME 1
ATTACHMENT K - CONTRACTOR INFORMATION VOLUME 2
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NOTICE INVITING PROPOSALS
NOTICE IS HEREBY GIVEN that Request for Proposals (RFP) are invited by the City of
Stockton, California for RWCF ADDITION OF CENTRIFUGE SYSTEMS (PROJECT NO.
UW26006) in strict accordance with the specifications.
The City of Stockton, Municipal Utilities Department (City) is seeking proposals from qualified
Design-Build teams to provide design and construction services for the addition of new
centrifuge systems to increase dewatering capabilities at the Regional Wastewater Control
Facility(RWCF).
Proposal forms and specifications are available on the City's website at
www.stocktonca.gov/mudbid and must be delivered to the Office of the City Clerk, City Hall,
425 North El Dorado Street, Stockton, up to but not later than, Thursday, June 18, 2026, at
2:00 p.m.
The City reserves the right to reject any and/or all proposals received.
Information on Technical Data Information on Process/Clarification
Ana Chiono, MUD Engineering Procurement Division
(209) 937-5650 e-mail: stocktonbids@stocktonca.gov
e-mail: ana.chiono@stocktonca.gov
DISCLAIMER: The City does not assume any liability or responsibility for errors/omissions in
any document transmitted electronically.
Bid Flash Post and Advertisement Dated: May 08, 2026
KATHERINE ROLAND, CMC CPMC
CITY CLERK OF THE CITY OF STOCKTON
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REQUEST FOR PROPOSALS (RFP)
RWCF ADDITION OF CENTRIFUGE SYSTEMS
PROJECT NO. UW26006
PROPONENT'S CHECKLIST
Did You:
*___ Complete the following proposal documents (FROM THIS PACKET ONLY
SUBMIT PAGES 22 to 25 AND PLACE IN THE FRONT OF YOUR PROPOSAL):
*___ Sign and notarize by jurat certificate the "Non-Collusion Affidavit" form. An "All-
Purpose Acknowledgment" form will not be sufficient.
*___ Complete and sign a "Proponent's Fee Schedule" form, (under separate cover).
*___ Sign the "Proponent's Covenant" form. Include (with proposal) name and
e-mail address for City contact, if different from signatory.
*___ Include your proposal, as outlined in these specifications.
*___ Submit one (1) ORIGINAL (unbound, no staples) and three (3) COPIES of all
proposal documents. Additionally, submit one (1) USB with an electronic version
of the proposal and an electronic version of the proposal fee.
*___ Include your 10% Bidder's security, bond or check.
*___ Complete and sign "Certification of Financial Condition" form.
*___ Review all clarifications/questions/answers on the City's website at
www.stocktonca.gov/mudbid
*___ Deliver sealed proposal to City Hall, City Clerk's Office (1st floor), 425 North El
Dorado Street, Stockton, CA 95202, before THURSDAY, JUNE 18, 2026, at 2:00
p.m. Sealed proposal shall be marked "Proposal" and indicate project name,
number, and proposal opening date (in the same format below). Please note that
some overnight delivery services do not deliver directly to the City Clerk's Office.
This could result in the proposal arriving in the City Clerk's Office after the proposal
opening deadline and therefore not being accepted.
A) "RFP - RWCF ADDITION OF CENTRIFUGE SYSTEMS"
B) PROJECT NO. UW26006
C) JUNE 18, 2026
CONTACT INFORMATION:
Information on Technical Data Information on Process/Clarification
Ana Chiono, MUD Engineering Procurement Division
(209) 937-5650 e-mail: stocktonbids@stocktonca.gov
e-mail: ana.chiono@stocktonca.gov
*If not completed as required, your proposal may be rejected.
DISCLAIMER: The City does not assume any liability or responsibility for errors/omissions in
any document transmitted electronically.
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REQUEST FOR PROPOSALS (RFP)
RWCF ADDITION OF CENTRIFUGE SYSTEMS
PROJECT NO. UW26006
1.0 GENERAL INFORMATION
1.1 REQUEST FOR PROPOSAL (RFP) PROCESS
The City of Stockton (City) is issuing this Request for Proposals (RFP) to retain a
qualified design consultant / general contractor team to provide design services
and construction services for the Regional Wastewater Control Facility (RWCF)
Addition of Centrifuge Systems (Project No. UW26006).
1.2 INVITATION TO SUBMIT A PROPOSAL
Proposals shall be submitted no later than 2:00 p.m., on Thursday, June 18, 2026,
in the office of:
CITY CLERK
CITY OF STOCKTON
425 NORTH EL DORADO STREET
STOCKTON, CA 95202-1997
One (1) original and three (3) copies of the proposal shall be submitted.
Additionally, submit one (1) USB with an electronic version of the proposal and an
electronic version of the proposal fee. The proposal should be firmly sealed in an
envelope which shall be clearly marked on the outside, "PROPOSAL" and indicate
project name and proposal opening date on the outside (in the same format below).
The proposal fee should be submitted in a separate sealed envelope. Any
proposal received after the due date and time indicated may not be accepted and
may be rejected and returned, unopened, to the proponent.
A) "RFP - RWCF ADDITION OF CENTRIFUGE SYSTEMS"
B) PROJECT NO. UW26006
C) JUNE 18, 2026
1.3 LOCAL BUSINESS PREFERENCE
Stockton Municipal Code Section 3.68.090 reads as follows:
Preference shall be given to the purchase of supplies, materials, equipment, and
contractual services from local merchants, quality and price being equal. Local
merchants who have a physical business location within the boundaries of San
Joaquin County, and who have applied for and paid a business license tax and
registration fee pursuant to Stockton Municipal Code Title 5, Chapter 5.08, License
Taxes, shall be granted two (2) percent bid preference. Local merchants who have
a physical business location within the boundaries of the City of Stockton, and who
have applied for and paid a business license tax and registration fee pursuant to
Stockton Municipal Code Title 5, Chapter 5.08, License Taxes, shall be granted
five (5) percent bid preference. This section is intended to provide preference in
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REQUEST FOR PROPOSALS (RFP)
RWCF ADDITION OF CENTRIFUGE SYSTEMS
PROJECT NO. UW26006
the award of certain City contracts in order to encourage businesses to move into
and expand within the City. (Ord. 2014-03-18-1601 C.S. 1; prior code 3-106.1)
1.4 LOCAL EMPLOYMENT-PUBLIC WORKS CONTRACTORS
Proponent must comply with City of Stockton Municipal Code (SMC) Section
3.68.095, Ordinance No. 011-09 adopted September 1, 2009, effective October 1,
2009.
1.5 CONSEQUENCE OF SUBMISSION OF PROPOSAL
A. The City shall not be obligated to respond to any proposal submitted nor be
legally bound in any manner by the submission of a proposal.
B. Acceptance by the City of a proposal obligates the proponent to enter into
an agreement with the City.
C. An agreement shall not be binding or valid against the City unless or until it
is executed by the City and the proponent.
D. Statistical information contained in these documents is for informational
purposes only. The City shall not be responsible for the accuracy of said
data. City reserves the right to increase or decrease the project scope.
E. City reserves the right to increase or decrease the project scope.
1.6 ACCEPTANCE OR REJECTION OF PROPOSAL
A proposal shall be prepared and submitted in accordance with the provisions of
these RFP instructions and specifications. Any alteration, omission, addition,
variance, or limitation of, from, or to a proposal may be sufficient grounds for
rejection of the proposal. The City has the right to waive any defects in a proposal
if the City chooses to do so. The City may not accept a proposal if any document
or item necessary for the proper evaluation of the proposal is incomplete,
improperly executed, indefinite, ambiguous, or missing.
The City reserves the right to select the successful proposal and negotiate an
agreement as to the scope of services, the schedule for performance and duration
of the services with proponent whose proposal is most responsive to the needs of
the City. Further, the City reserves the right to reject any and all proposals, or
alternate proposals, or waive any informality or irregularity in the proposal as is in
the City's best interest.
The City reserves the right to reject any and all proposals, or portions thereof,
received in response to the RFP or to negotiate separately with any source
whatsoever, in any manner necessary, to serve the best interests of the City.
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REQUEST FOR PROPOSALS (RFP)
RWCF ADDITION OF CENTRIFUGE SYSTEMS
PROJECT NO. UW26006
Additionally, the City may, for any reason, decide not to award an agreement as a
result of this RFP.
Non-acceptance of any proposal shall not imply that the proposal was deficient.
Rather, non-acceptance of any proposal will mean that another proposal was
deemed to be more advantageous to the City or that the City decided not to award
an agreement as a result of this RFP.
1.7 RIGHT TO CHANGE OR AMEND REQUEST
The City reserves the right to change the terms and conditions of this RFP. The
City will notify potential proponent of any material changes by posting on the City's
website. No one is authorized to amend any of the RFP requirements in any
respect, by an oral statement, or to make any representation or interpretation in
conflict with its provisions. If necessary, supplementary information and/or
clarifications/questions/answers will be posted on the City's website at
www.stocktonca.gov/mudbid. Failure of any proponent to not have received such
information and/or clarifications/questions/answers shall not relieve such
proponent from any obligation under his/her proposal as submitted.
Any exceptions to this Proposal shall be clearly stated in writing.
1.8 CANCELLATION
The City reserves the right to rescind award of the contract at any time before
execution of the contract by both parties if rescission is deemed to be in City's best
interest. In no event shall City have any liability for the rescission of award. The
proponent assumes the sole risk and responsibility for all expenses connected with
the preparation of its proposal.
1.9 EXAMINATION OF PROPOSAL MATERIALS
The submission of a proposal shall be deemed a representation and warranty by
the proponent that investigated all aspects of the RFP, that it is aware of the
applicable facts pertaining to the RFP process and its procedures and
requirements, and that it has read and understands the RFP. No request for
modification of the provisions of the proposal shall be considered after its
submission on the grounds that the proponent was not fully informed as to any fact
or condition. Statistical information which may be contained in the RFP or any
addendum is for informational purposes only. The City disclaims any responsibility
for this information which may subsequently be determined to be incomplete or
inaccurate.
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REQUEST FOR PROPOSALS (RFP)
RWCF ADDITION OF CENTRIFUGE SYSTEMS
PROJECT NO. UW26006
1.10 ADDENDA AND INTERPRETATION
The City will not be responsible for, nor be bound by, any oral instructions,
interpretations, or explanations issued by the City or its representatives. Any
request for clarifications/questions/answers of this RFP shall be made in writing/e-
mail and deliverable to:
CITY OF STOCKTON
ATTN: ANA CHIONO
MUNICIPAL UTILITIES DEPARTMENT
2500 NAVY DRIVE
STOCKTON, CA 95206
Email: ana.chiono@stocktonca.gov
Such request for clarifications/questions/answers shall be delivered to the City by
June 08, 2026. Any City response to a request for
clarifications/questions/answers will be posted on the City's website at
www.stocktonca.gov/mudbid by June 15, 2026, and will become a part of the RFP.
The proponent should await responses to inquiries prior to submitting a proposal.
1.11 DISQUALIFICATION
Any of the following may be considered cause to disqualify a proponent without
further consideration:
A. Evidence of collusion among proponents;
B. Any attempt to improperly influence any member of the evaluation panel;
C. Any attempt to communicate in any manner with a City of Stockton elected
official during the RFP process will, and shall be, just cause for
disqualification/rejection of proponent's proposal/Proponent's bid submittal
and considered non-responsive.
D A proponent's default in any operation of a professional services agreement
which resulted in termination of that agreement; and/or
E. Existence of any lawsuit, unresolved contractual claim, or dispute between
proponent and the City.
F. No person, firm, or corporation shall be allowed to make or file or be
interested in more than one bid for the same supplies, services, or both;
provided, however, that subcontract bids to the principal bidders are
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REQUEST FOR PROPOSALS (RFP)
RWCF ADDITION OF CENTRIFUGE SYSTEMS
PROJECT NO. UW26006
excluded from the requirements of this section: Section 3.68.120 of the
Municipal Code.
1.12 CONDITIONS IF WORK IS SUBCONTRACTED
A. The proponent assumes full responsibility, including insurance and bonding
requirements, for the quality and quantity of all work performed.
Subcontractor use for any part of any contract resulting from this RFP
requires prior written approval from the City authority before any
subcontractor work may commence.
B. If proponent's supplier(s) and/or subcontractor's involvement requires the
use of a licensed, patented, or proprietary process, the proponent of the
process is responsible for assuring that the subcontractor, supplier, and/or
operator have been properly authorized to use the process or for providing
another process which is comparable to that which is required prior to
submission of a proposal.
1.13 LICENSING REQUIREMENTS
The Designer performing engineering design services for this Project shall hold all
required professional licenses applicable under California law.
The Contractor for this Project shall possess at the time of proposal a valid
California Class A General Engineering Contractor's License and shall obtain a
City of Stockton business license prior to execution of the Contract.
For questions regarding business licensing, please contact the City of Stockton
Business License Division at (209) 937-8313.
1.14 INSURANCE REQUIREMENTS
Proponent, at Proponent's sole cost and expense and for the full term of the
resultant contract or any extension thereof, shall obtain and maintain at least all of
the insurance requirements listed in attached Exhibit B.
All coverage shall be provided by a carrier authorized to transact business in
California and shall be primary. All policies, endorsements, and certificates shall
be subject to approval by the Risk Manager of the City to Stockton as to form and
content. These requirements are subject to amendment or waiver if so approved
in writing by the Risk Manager.
Maintenance of proper insurance coverage is a material element of this contract,
and failure to maintain or renew coverage or to provide evidence of renewal may
be treated as a material breach of contract.
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