Bid Notice-On-Call Geotechnical Engineering Services.pdf

PDF 779 KB Posted Aug 29, 2026

Attached to: On-Call Geotechnical Engineering Services
Solicitation number: 2026-002
Issued by: California

About this file

Written by GovTribe AI · Sep 8, 2026

Summary

This is a Request for Qualifications (RFQ) issued by the City of Modesto, California, soliciting qualified consulting firms to establish an On-Call Geotechnical Engineering Services List. The City seeks to select up to three (3) consulting firms to provide geotechnical engineering services for various Capital Improvement Program and utility-related projects, including the design and construction of water and sewer pipelines, roadway drainage infrastructure, lift stations, water storage tanks, drainage basins, buildings, and wastewater treatment facilities. Services encompass subsurface characterization, soil permeability and infiltration testing, slope stabilization analysis, soil bearing capacity evaluation, excavation and backfill recommendations, retaining wall design, pavement section design, seismic response analysis, and earthwork design. All services must be performed under the responsible charge of a California-licensed Geotechnical Engineer and Civil Engineer. The RFQ was released on August 17, 2026, with statements of qualifications due by September 22, 2026, at 5:00 p.m. Pacific Time. Requests for clarifications must be submitted by September 10, 2026. Following evaluation and potential interviews in October 2026, City Council approval is anticipated in December 2026, with a notice to proceed expected thereafter.

Agreements will have an initial term of three (3) years from the effective date, with options for two (2) additional one-year extensions, though selection does not guarantee any minimum amount of work or compensation. Compensation is not expected to exceed $100,000 per year per consultant, with a maximum not-to-exceed amount of $300,000 per consultant over the initial three-year term. Work will be authorized through project-specific Task Orders and billed either on a time-and-materials basis at hourly rates or on a lump-sum, fixed-fee basis as specified in each Task Order. The City reserves the right to perform services with staff, procure services separately, or terminate agreements at its discretion. Selection will be based on a weighted scoring methodology evaluating experience (50 points), analysis and approach (15 points), and general qualifications including geographic proximity, availability, responsiveness, specialty services, and firm reputation (35 points). Consultants must comply with conflict-of-interest requirements, file Economic Interest Forms with the Fair Political Practices Commission, obtain a City business license, and maintain comprehensive insurance coverage as specified in the agreement exhibits.

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OPEN

On-Call Geotechnical Engineering Services Utilities

20867, 90742, 91356, 91389, 91842... show all

Project ID: 2026-002

Release Date: Monday, August 17, 2026

Due Date: Tuesday, September 22, 2026 5:00pm

Posted Monday, August 17, 2026 3:09pm

All dates & times in Pacific Time - Los Angeles

Draft Response No Bid

Time Remaining: 24 days, 7 hours, 9 minutes

To respond to this project, please click the "Draft Response" button above.

1. Introduction

1.1. Notice to Consultants

Dear Consultant:

The City of Modesto (City) is soliciting Requests for Qualifications (RFQ) from qualified consulting firms to establish an On-Call Geotechnical Engineering Services List to provide geotechnical engineering services for various future Capital Improvement Program and City projects.

Consultants shall provide sufficient information demonstrating their qualifications, relevant experience, available resources, capacity, and ability to provide responsive on-call services for the types of assignments identified in this RFQ and its attachments. Through this solicitation, the City

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1.2. Background

intends to select up to three (3) of the highest-ranked consultants to enter into individual on-call agreements with the City. Each agreement will have a term of three (3) years from the effective date, with the option for two (2) additional one-year extensions.

Selection to the On-Call Geotechnical Engineering Services List and execution of an on-call agreement does not guarantee any Consultant a minimum amount of work, compensation, or number of Task Orders. The City may elect to perform services with City staff, procure services separately, or utilize any Consultant on the On-Call List based on the City's needs and applicable procurement requirements.

If you wish to be considered for this work, please electronically submit your Statement of

Qualifications (SOQ) through the City's OpenGov Procurement Portal no later than 5:00 p.m.

on Tuesday, September 22, 2026. Statements of Qualifications submitted in any other format will not be accepted.

A selection committee will evaluate all Statements of Qualifications submitted in response to this

RFQ. However, this RFQ does not commit the City to award an Agreement for Consultant Services, reimburse any costs incurred in the preparation or presentation of a Statement of Qualifications, or procure a contract for services.

Agreements for On-Call Geotechnical Engineering Services are not expected to exceed $100,000 per year, per consultant, with a maximum not-to-exceed amount of $300,000 per consultant agreement over the initial three-year term.

This RFQ contains specific instructions and requirements for preparing and submitting a Statement of Qualifications.

Due to scheduling constraints, requests to meet with City staff to discuss this RFQ will not be considered.

The City anticipates designing and constructing various Capital Improvement Program projects over the next several years. The City intends to establish an On-Call Geotechnical Engineering List consisting of consultants possessing established experience in geotechnical engineering. In addition, as noted in Section 1, this RFQ process will select up to three (3) firms that will be placed on an on-call list to provide geotechnical engineering services. The City may hire a geotechnical engineering firm on an as-needed basis.

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2. Scope of Services

2.1. Preliminary Scope of Services

The City of Modesto Utilities Department undertakes a wide range of projects, including the planning, design, and construction of water, sewer, and storm drain pipelines; roadway drainage infrastructure; storm drain and sanitary sewer lift stations; water well pump stations; water storage tanks; drainage basins; buildings; wastewater treatment facilities; groundwater recharge systems;

and flood mitigation facilities, as well as other utility-related projects as needed.

Geotechnical engineering services supporting these projects may include subsurface characterization; soil permeability and infiltration testing; oversight and management of test well installation; slope stabilization analysis and recommendations; evaluation of soil bearing capacity;

excavation and backfill recommendations; retaining wall design; pavement section design; seismic response and hazard analysis; and earthwork design. All geotechnical engineering services shall be performed under the responsible charge of a Geotechnical Engineer and a Civil Engineer licensed in the State of California.

The scope also includes support for the work to be provided after it is awarded.

A. The City of Modesto Utilities Engineering Services projects include the design and construction of pipelines, roadways, storm drain and sanitary sewer lift stations, water well pump stations, water tanks, drainage basins, buildings, and wastewater treatment facilities.

Typically, geotechnical engineering services may be required (but not limited to) for subsurface characterization, soil permeability, slope stabilization, soil load bearing, excavation and backfill issues, retaining walls, pavement thickness design, seismic response and susceptibility, and earthwork design. All professional geotechnical engineering services shall be performed under the responsible charge of a California-licensed professional engineer qualified by education, training, and experience to perform the applicable geotechnical engineering services, as required by applicable California law.

The preliminary scope of services for the on-call list to be provided is included as Exhibit A in the Standard Agreement for On-call Consultant Services (Attachment A) of this RFQ. The on-call agreement will have a term of three (3) years with the option for two (2) additional one-year extensions.

Deliverables may include reports, studies, design documents, construction documents, specifications and estimates. Schedule requirements will vary by assignment and will be established in each individual Task Order. The work may also include:

Conduct field investigations;

Coordination with other design disciplines;

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Participation in public meetings/workshops;

Unless specifically included in the particular scope of work, the environmental review process will be handled by the City. The Consultant may be responsible for agency approvals including, but not limited to:

Stanislaus County

City of Modesto Building Department

CA Regional Water Quality Control Board

CA Department of Fish and Game (Stream Alteration Permits)

CA Department of Transportation

CA Department of Water Resources

Modesto Irrigation District (MID)

Turlock Irrigation District (TID)

Pacific Gas and Electric (PG&E)

Army Corp of Engineers (ACOE)

Union Pacific Railroad (UPRR)

3. Submittal Requirements

3.1. Requests for Clarifications, Corrections or Modifications

It is the policy of the City of Modesto (when not prohibited by the funding source) that, all other factors being equal, local firms whose qualifications are satisfactory and who have sufficient experience and capabilities for providing the necessary professional services shall normally be given priority in being considered for employment by the City. The location of any sub-consultant firms proposed by the consultant will also be considered when applying this policy.

Any requests for clarifications, corrections or modifications of this Request for Qualifications (RFQ) shall be submitted through the Question & Answer section of this Request for Qualifications (RFQ) on the City's OpenGov Procurement portal:

https://procurement.opengov.com/portal/modestogov/projects/287003 before 5:00 pm on

Thursday, September 10, 2026. Responses from the City will be communicated in writing with all responses provided to all approved questions posted publicly and as an addendum, if needed. The

City of Modesto reserves the right to reject any Statements of Qualifications that contains unauthorized conditions or exceptions.

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3.2. Submittal Due Date

3.3. Agreement

Statements of Qualifications must be submitted through the City's OpenGov Procurement portal prior to 5:00 pm on Tuesday, September 22, 2026. Statements of Qualifications received after the above specified date and time or in a manner other than as stated above will not be considered.

Cost proposals shall be submitted as a separate file if stated in this Request for Qualifications

(RFQ). An upload area stating such will be made available within this Request for Qualifications

(RFQ) on the City's OpenGov Procurement portal. If such a requirement is noted in this Request for Qualifications (RFQ), no cost information should be present in the other uploads you provide unless otherwise specified within this Request for Qualifications (RFQ). Before submitting the file, make sure to review the file to avoid submitting duplicate files.

Following interviews (should they be deemed necessary) negotiations will begin with the firm deemed most qualified. If agreement cannot be reached in negotiations, the City will begin negotiations with the firm that is judged to be next most qualified. If the City determines to approve the agreement, a City of Modesto Standard Agreement shall be sent to the successful firm for signature. If an agreement is reached, the Standard Agreement will be presented to Council for approval. Once City Council has approved the Standard Agreement, the agreement will be executed by the City. No Statements of Qualifications shall be binding upon the City until after duly authorized representatives of both the firm and the City have signed the Standard Agreement. The

City shall have the sole authority to terminate negotiations with any firm at any time without recourse by the firm. The approval of the agreement, if made by the City, will be based on a total review and analysis of each Statements of Qualifications and any interviews deemed necessary.

A sample City of Modesto Standard Agreement is included for your reference (Attachment A).

Please review the sample agreement carefully with your legal and/or insurance representative.

Firms are REQUIRED to submit any questions, concerns or language change requests regarding this agreement in writing as a part of this Statements of Qualifications. Firms choosing not to submit any questions, concerns, or language requests, in writing, as part of this Statements of Qualifications are assumed to agree with the agreement in its entirety, as written, with no exceptions.

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3.4. Conflict of Interest/City Business License

The City requires that the firm’s Principal file a Statement of Economic Interest Form 700 with the

City to the satisfaction of the Fair Political Practices Commission (FPPC) when the firm provides information, advice, recommendations or counsel to the City. Before the City enters into an agreement for services with the selected firm, the Principal will be required to report individual economic interests within the City of Modesto on the following:

1. Real Property Interest (geographically limited)

2. Sources of Income

3. Business Positions

4. Business Investments

The selected firm is also required to submit a completed and signed Financial Interest Disclosure

Form and will have a City of Modesto business license.

4. Statement of Qualifications Contents

1. Cover Letter

Upload a cover letter that satisfies the following requirements:

A cover letter introducing the firm and its commitment to provide on-call geotechnical engineering services to the City, including the proposed Project Manager and key personnel, shall be included. The cover letter should highlight the firm's relevant experience, key qualifications, availability, and approach to providing responsive on-call services to the City.

Maximum Length: Two (2) pages.

2. Firm Experience

This section shall include the proposed firm’s geotechnical engineering and project management experience. For the prime consultant, and any sub consulting firms, provide the following information:

The objective of this RFQ is to obtain an SOQ from qualified consulting firms with demonstrated experience in geotechnical engineering services. Potential firms must demonstrate adequate resources to provide professional services for the type of projects outlined above.

The SOQ shall be succinct. The submitted material should focus on technical content that demonstrates geotechnical engineering experience, capability, availability and commitment of the firm and its team. Elaborate or glossy SOQs are neither expected nor desired.

To simplify comparisons during evaluation, information submitted shall be provided in the order listed in this Request for Qualifications (RFQ).

Each submittal shall include the following information:

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Names of principals indicating experience, background, academic training, and where registered.

Length of time in business.

Office address(es) from which services will be supported, percentage of work, and/or category of work to be performed in each office.

Facilities and manpower of the office(s) in which the work will be performed.

Listing of experience for five (5) completed projects that demonstrate relevant geotechnical engineering experience. For each project, provide the project name and owner, location, project description and type, scope of geotechnical services provided, approximate construction cost, geotechnical services fee, completion date, and name and contact information for a knowledgeable owner representative.

Key issues and challenges, and how they were resolved.

Specialty areas addressed and sub-consultant involvement.

Maximum Length: Four (4) pages.

3. Experience of Manager and Team

The proposed scope of services should address the key items outlined in the Background and Scope of Design Services subsections of this Request for Qualifications (RFQ), and shall include the firm’s understanding of the desired work.

The firm’s Project Manager (PM) is defined to be the individual within the prime consultant’s firm who will be directly responsible for managing and coordinating the Consultant’s on-call services and individual task orders. The PM must be knowledgeable and experienced in the geotechnical engineering services anticipated under this RFQ.

The SOQ shall include the following information demonstrating the PM’s knowledge, experience, and availability:

Name and title, years of experience with the prime consultant’s firm, and years of experience with other firms.

Education, degree, specializations.

Representative experience for not more than five (5) recently completed projects, similar in scope. In addition, provide information on all projects that are currently in progress to which the PM is committed:

Owner, project description (including size), location and completion date. If project is in progress, provide estimated completion date and level of commitment.

Name, address and phone number of knowledgeable owner representative.

Firm with which the individual was employed during project experience.

Consultant services for which the individual was directly responsible;

service/functions directly performed by individual (not just job title).

Availability and Capacity.

Identify up to four (4) additional key personnel, for a maximum of five (5) proposed individuals, including the PM. Key personnel should have experience relevant to the types of geotechnical engineering services anticipated under this RFQ. Provide for each additional individual:

Name and title, years of experience with the prime consultant’s firm, and years of experience with other firms.

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Specific project responsibility and functions to be performed.

Education, degrees, and specializations.

Representative experience for not more than three (3) recently completed projects similar in scope to the design services requested. In addition, provide information on all projects that are currently in progress to which the team members are committed.

Owner, project description (including size), location and completion date. If project is in progress, provide estimated completion date and level of commitment.

Name, address and phone number of knowledgeable owner representative.

Firm with which the individual was employed during project experience.

Consultant services for which the individual was directly responsible;

service/functions directly performed by individual (not just job title).

Availability and Capacity.

Maximum Length: Five (5) pages.

4. Additional Information

For any additional information requested or required by any of your previously provided answers or as stated within this Request for Qualifications (RFQ) please upload the additional documentation as part of your proposal.

Describe the firm's approach to providing responsive on-call geotechnical engineering services to the City. At a minimum, address task-order development, responsiveness, field mobilization, laboratory coordination, quality assurance/quality control, communication with City staff, emergency response, and management of multiple concurrent assignments.

Provide any additional information supporting the firm's qualifications for the services required.

Maximum Length: Two (2) pages.

4.1. Proposal*

Please upload your Proposal here formatted in the manner required by this Request for Qualifications

(RFQ).

*Response required

4.2. Submittal Confirmation*

Consultant hereby certifies that all information provided within this submittal is accurate to the best of their knowledge and acknowledges that they have provided proof of their authority to submit a Statements of Qualifications on behalf of the stated Company Name committing them to the information contained within said submittal.

By checking the "please confirm" box below, you certify the above statement.

*Response required

4.3. Financial Interest Disclosure*

Please confirm

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Please download the below documents, complete, and upload.

Financial_Interest_Disclosure_Form_RFP_(4).pdf

*Response required

4.4. California Levine Act Disclosure*

Please download the below documents, complete, and upload.

Modesto_Levine_Act_Statement_Form.pdf

*Response required

5. Selection Process

1. Experience Years of experience of firm and/or its principals as geotechnical engineering professionals.

Broad character and scope of past projects Experience of proposed team members in projects of similar magnitude, design requirements and complexity, within the past five years. Identify each team member’s involvement in the specific project listed and with which firm they were employed when the work was done.

History of repeat business with clients. Designate the previous (within the past five years) geotechnical engineering contracts with the City of Modesto.

Scoring Method:

Points Based Weight (Points):

50 (50% of Total)

2. Analysis Understanding of the City's anticipated on-call geotechnical engineering needs and soundness of the firm's approach to addressing those needs.

Demonstrated ability to manage multiple concurrent assignments, coordinate with City staff and other consultants, meet established schedules, and respond to changing project requirements.

Quality assurance/quality control procedures and demonstrated ability to produce complete, clear, concise, and technically sound reports and other deliverables.

Statements of Qualifications will be evaluated by the Selection Committee and, if a clear selection cannot be made based on scoring of Statements of Qualifications alone, proposing firms will be invited to an interview with the Committee. The Committee will rank the firms based upon an evaluation of the Statements of Qualifications and any interviews deemed necessary. Negotiations will begin with the firm deemed most qualified. If agreement cannot be reached in negotiations, the City will begin negotiations with the firm that is judged to be next most qualified.

Statements of Qualifications and any interviews deemed necessary will be evaluated on the following grading criteria:

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Scoring Method:

Points Based Weight (Points):

15 (15% of Total)

3. General Geographic proximity and ability to provide timely field services within the City's service area.

Availability and capacity of the firm and proposed team to support multiple concurrent Task Orders.

Responsiveness to City requests and ability to mobilize appropriate personnel, equipment, and subcontractors.

Availability of specialty services, laboratories, drilling resources, potholing services, surveying, GIS/CAD support, and other resources necessary to perform anticipated assignments.

Firm reputation, references, and demonstrated commitment to providing high-quality professional services.

Scoring Method:

Points Based Weight (Points):

35 (35% of Total)

6. Rights of the City of Modesto

The City will evaluate all submittals, but this Request for Qualifications (RFQ) does not commit the

City of Modesto to approve an agreement, to pay for any costs incurred in preparation or presentation of a Statements of Qualifications, or to procure an agreement for services. The City reserves the right to:

Make the selection based on its sole discretion;

Accept or reject any and all Statements of Qualifications, or any item or part thereof, or to waive any informalities or irregularities;

Withdraw this Request for Qualifications (RFQ) at any time without prior notice, and the City makes no representations that any agreement will be approved with any firm responding to this Request for Qualifications (RFQ);

Issue subsequent Request for Qualifications (RFQ);

Postpone Statements of Qualifications opening for its own convenience;

Approve or disapprove the use of particular subconsultant;

Negotiate with any, all, or none of the firms submitting a Statements of Qualifications;

Enter into an agreement with another firm in the event the originally selected Proposer defaults or fails to execute an agreement with the City.

Security reminder:

security@opengov.com. Learn more here.

7. Project Schedule

RFP/RFQ Posted: August 17, 2026

Requests for Clarifications, Corrections or

Modifications:

September 10, 2026, 5:00pm

Proposals/Statement of Qualifications Due: September 22, 2026, 5:00pm

Committee Review Complete *: October, 2026

Consultant Interview, if needed *: October, 2026

Council Approval *: December, 2026

Notice to Proceed *: December, 2026

*Dates subject to change

Thank you in advance, for your interest in our project.

Sincerely, Steven Castillo

Assistant Engineer Utilities Department scastillo@modestogov.com

(209) 341-2916

Security reminder:

security@opengov.com. Learn more here.

This is the start of the file's text. The full file is on GovTribe.

File details come from the government source that posted it. Updated Sep 8, 2026.