On-Call_Landfill_Liner_System_Repair_Services.pdf

REQUEST FOR PROPOSAL

2025-PURB RFP-0092

ON-CALL LANDFILL LINER SYSTEM REPAIR SERVICES

County of Sacramento

9660 Ecology Lane

Sacramento, CA 95827

RELEASE DATE: January 23, 2026

DEADLINE FOR QUESTIONS: February 6, 2026

RESPONSE DEADLINE: February 20, 2026, 2:00 pm

RESPONSES MUST BE SUBMITTED ELECTRONICALLY TO:

https://secure.procurenow.com/portal/saccounty https://secure.procurenow.com/portal/%7bproject.government.code%7d

County of Sacramento

REQUEST FOR PROPOSAL

On-Call Landfill Liner System Repair Services

1. Introduction

2. General Rules

3. Scope of Work

4. Evaluation and Selection

5. Proposal Format and Content

6. Vendor Submissions

Attachments:

A - Table 1 Base Liner System Components

B - Figure 1 - Site Vicinity Map

C - Liner System Geosyn Properties

D - Prevailing Wage Rates - Maintenance Project

E - Contracts Manual-Appendix A Standard Agreement

F - Proprietary Agreement

Request for Proposal #2025-PURB RFP-0092 Title: On-Call Landfill Liner System Repair Services

1. Introduction

1.1. Summary

The County of Sacramento, Department of Waste Management & Recycling (DWMR) is soliciting proposals from qualified liner system installation firms to perform geosynthetic liner repair services for the County of Sacramento Kiefer Landfill facility (KLF) on an on-call basis. The KLF is located in southeastern Sacramento County at 12701 Kiefer Boulevard, Sloughhouse, California 95683 as shown on

Attachment B - Site Vicinity Map.

Damage to the liner system affects the integrity of this environmental barrier and shall be repaired before covering the damaged liner with waste. Due to limitations on locations for active waste placement, repairs may be of a very high priority to maintain service for the waste stream entering the landfill. As such, emergency repairs will be needed on an on-call basis to keep the landfill operation running efficiently. However, repair services will only be required if damage occurs to the landfill base liner system.

1.2. Background

The County owns and operates the KLF for the disposal of Class III municipal solid waste, servicing the residences and businesses within the County of Sacramento and nearby cities. Periodically, the KLF extends the landfill base liner system to incorporate more airspace to deposit waste. The landfill liner system is a subsurface barrier that contains waste and waste constituents from being released into the surrounding environment.

The Kiefer Landfill is permitted for base liner systems in Modules M1L through M11. Module M1 (the original unlined area) was opened for waste fill operations in the summer of 1967. Module M-1L was opened for waste fill operations in March 1994 with the initial base liner system. Currently, landfilling is occurring in Module M4. Modules 5 through 11 will be constructed in the future to meet the local demand for disposal service.

Since the landfill liner has been constructed in multiple phases, the liner system components and material types vary. A summary of the various liner system components is included with this request for proposals as Attachment A - Table 1 Base Liner System Components.

1.3. Contact Information

Any inquiries or requests regarding this solicitation must be submitted via OpenGov. Contact with unauthorized County personnel during the selection process may result in disqualification.

Project Contact:

Tracy Soth

Senior Contract Services Officer

Email: sotht@saccounty.gov

Phone: (916) 876-6285

Procurement Contact:

Tracy Soth

Senior Contract Services Officer mailto:sotht@saccounty.gov tel:(916)876-6285

Email: sotht@saccounty.gov

Phone: (916) 876-6285

Department:

Waste Management and Recycling

Department Head:

Keith Goodrich

Director

1.4. Timeline

Release Project Date January 23, 2026

Question Submission Deadline February 6, 2026, 2:00pm

Proposal Submission Deadline February 20, 2026, 2:00pm mailto:sotht@saccounty.gov tel:(916)876-6285

2. General Rules

2.1. Important Instructions for Electronic Submittal

The County is accepting electronic proposal submissions. Proposers shall create a FREE account with

OpenGov Procurement by signing up at Sign Up (opengov.com). Once you have completed account registration, browse back to this page, click on "Draft Response", and follow the instructions to submit your electronic proposal.

2.2. General Rules

2.2.1 Overview

This Request for Proposals ("RFP") is an invitation for proposers to submit a proposal to the County. This

RFP does not commit the County to award a contract to any proposer. Submission of a proposal shall neither obligate nor entitle a proposer to enter into a contract with the County.

2.2.2 Proposal format and content

When submitting a proposal, proposers must follow the format and contents detailed in Section 5 below. Failure to do so will likely prolong the evaluation process and could result in a proposal not being considered.

2.2.3 Proposal submission

Proposals must be received BEFORE 2:00 pm on Friday, February 20, 2026 electronically via OpenGov.

Failure to submit a proposal on time may be grounds for rejection of the proposal; however, the County reserves the right, in its sole and absolute discretion, to accept proposals after the proposal due date.

2.2.4 Questions and communication

Questions concerning this RFP must be submitted in the project Q&A section in OpenGov Procurement by 2:00 pm on Friday, February 6, 2026.

Questions received via phone or e-mail to direct points of contact for this RFP will not be considered nor responded to. The County shall respond to questions properly submitted as described above via addenda, if the answer presents a material change to the solicitation, and/or via the Question & Answer section for non-material answers.

By submitting a response, proposer affirms review of all solicitation documents including all questions submitted and answers issued by the County on the project.

2.2.5 Addenda

The County reserves the right to modify this RFP at any time prior to the proposal due date. The County will modify the RFP only by written addenda. Proposal should be based on this RFP document and any formal written addenda. Proposers should not rely on oral statements. Addenda will be posted in

OpenGov Procurement. It is the responsibility of each prospective proposer to assure receipt of all addenda.

2.2.6 County's right to withdraw, cancel, suspend and/or modify RFP

The County reserves the right to withdraw, cancel, suspend, and/or modify this RFP for any reason and at any time with no liability to any prospective proposer for any costs or expenses incurred in https://procurement.opengov.com/signup connection with the RFP or otherwise.

2.2.7 Proposer's right to edit or cancel proposal

Proposers may edit or cancel their proposal in OpenGov Procurement prior to the due date.

2.2.8 Proposals will not be returned

Upon submission, proposals will not be returned.

2.2.9 Public disclosure of proposal documents

The County will treat all information submitted in a proposal as available for public inspection once negotiations with the selected party have been completed. If copies of proposals are included with

Board materials, the County will make proposals available for public inspection once staff has made a recommendation for award.

If a proposer believes protected data is included in its proposal, the proposer shall clearly identify the data and provide the legal basis in support of the asserted classification. Proposer must present such information separately as part of its proposal OR type in bold red letters the term "CONFIDENTIAL" on that specific part or page of the proposal which proposer believes to be confidential. Classification of data as trade secret data will be determined pursuant to applicable law, and, accordingly, merely labeling data as "trade secret" does not necessarily make the data protected under any applicable law.

In order for the County to assert the confidentiality of any such information in the event a California

Public Record Act request is received, the proposer must request, execute and submit a County-prepared written agreement to defend and indemnify the County for liability, costs and expenses incurred in asserting such confidentiality as part of the proposal. A copy of that written agreement is attached as Attachment Attachment F Proprietary Agreement.

The final determination of whether the County will assert a proposer's claim of confidentiality shall be at the sole discretion of the County. Any information determined to be non-confidential shall be considered public record. If the County determines that your information does not meet the criteria for confidentiality, you will be notified of the County's intent to release the public record pursuant to any

California Public Records Act request.

The proposer agrees, as a condition of submitting its proposal, that the County will not, as between the parties, be liable or accountable for any loss or damage, which may result from a breach of confidentiality related to the proposal. The proposer agrees to indemnity and hold the County, its officials, agents, and employees harmless from all claims arising out of, resulting from, or in any manner attributable to any violation of any provision of the California Public Records Act, including legal fees and disbursements paid or incurred to enforce this provision.

2.2.10 Proposer's costs

The County shall not be responsible for any costs incurred by proposer in connection with this RFP.

Proposer shall bear all costs associated with proposal preparation, submission, and attendance at interviews, or any other activity associated with this RFP or otherwise.

2.2.11 Proposer's ideas

To the extent permitted by law, the County reserves the right to use any or all ideas, concepts, or other information provided in any proposals. Selection or rejection of the proposal does not affect this right.

2.2.12 Collusion

If the County determines that collusion has occurred among proposers, none of the proposals of the participants involved in the collusion shall be considered. The County's determination shall be final.

2.2.13 Conflict of interest

The proposer affirms that to the best of its knowledge the submission of its proposal, or any resulting contract, does not present an actual or perceived conflict of interest. The proposer agrees that should any actual or perceived conflict of interest become known, it will immediately notify the County and will advise whether it will or will not avoid, mitigate, or neutralize the conflict of interest.

The County may make reasonable efforts to avoid, mitigate, or neutralize a conflict of interest by a proposer. To avoid a conflict of interest by a proposer, the County may utilize methods including disqualifying a proposer from eligibility for a contract award or cancelling the contract if the conflict is discovered after a contract has been issued. The County may, at its sole and absolute discretion, waive any conflict of interest.

3. Scope of Work

The selected consultant will be responsible for the following:

DWMR is seeking a firm that is experienced in maintenance of the geosynthetics components of landfill base liner systems including installing and repairing. DWMR specifically requires assistance with potential maintenance repair of the existing KLF base liner system, should damages occur during operation of the landfill. The anticipated scope of work for the successful Proposer (also identified as

Installer) will include the following on-call tasks:

3.1 Preparation

Prior to notification by DWMR that maintenance repair services are needed, the liner system repair firm

(Installer) shall procure liner system materials that meet the minimum specifications associated with the existing liner system(s) most likely to incur damage. A summary of the existing base liner system component materials is included as Attachment A - Table 1 Base Liner System Components. Although eleven liner system installation phases have occurred at KLF, only the most recent Module 4 (M4) expansion has significant potential to incur damage by the refuse placement operation. However, the possibility still exists that other liner system phases could be damaged along the refuse perimeter during construction activities such as trenching. Generally, the successful Proposer will be required to keep a minor amount of geomembrane (GM), geosynthetic clay liner (GCL), and geotextile (GT) on-hand specifically for repairs to M4. However at the time of this RFP, DWMR has surplus materials of GM, GCL, and GT remaining from the construction of Module 4, Phase 2 stored at the on-site equipment maintenance shop. While DWMR has these material on-hand, the requirement to procure and store equivalent materials separately is waived.

3.2 Documentation

All materials assigned for repair services at KLF shall have corresponding manufacturer’s quality control

(MQC) certifications with matching roll numbers and/or lot numbers as appropriate for the specific material property testing frequency. Material properties shall meet the material specifications identified in the technical specifications for the corresponding base liner system expansion phase. Excerpts from the M4P1 specifications identifying material properties are included as

Attachment 1. MQC certifications, at a minimum, shall include the following information:

1. Geomembrane:

a. Lot Number

b. Roll Number

c. Thickness

d. Asperity Height

e. Density

f. Tensile Properties (strength and elongation at yield and break)

g. Tear Resistance

h. Puncture Resistance

i. Carbon Black Content and Dispersion

2. Geosynthetic Clay Liner

a. Bentonite Mass/Area

b. Geotextile Component Mass/Area (top and bottom)

c. GCL Hydraulic Conductivity and/or Index Flux

3. Geotextile

a. Mass/Area

b. Grab Tensile Strength/Elongation

c. Trapezoidal Tear Strength

d. CBR Puncture Strength

e. Apparent Opening Size

f. Permittivity

3.3 Coordination

Following notification of liner system repairs needed at KLF, Installer shall coordinate their work schedule with the other parties involved. This includes DWMR’s project manager and the project manager for the third-party CQA Consultant contracted to observe and document liner system repairs. At the time of this RFP, GeoLogic Associates is the CQA Consultant contracted for monitoring geosynthetic repair services. No repair work shall be performed without the CQA Consultant present.

3.4 Repair Work

On the coordinated day, Installer shall mobilize to the KLF with repair equipment to meet with the CQA

Consultant prior to beginning repair work. Repair materials shall be brought to the KLF if required materials are not already available on-site. In accordance with specifications, Installer shall perform trial welds on representative geomembrane and perform destructive tests on the trial welds. The test results must pass strength and failure mode requirements prior to beginning repair work. Specific repair methods shall correspond to the Technical Specifications and Construction Quality Assurance (CQA) Plan requirements associated with the applicable liner system phase of construction. Upon the County's acceptance of all work associated with each individual repair event, and the receipt of an invoice for the work, payment will be made to the Installer.

3.5 Time of Completion

Repair work under this contract is anticipated to be performed on an emergency on-call basis. Installer is expected to complete repairs to minor damages under this contract within one week following notification of the damage and requested repair service. In the event that weather conditions or other factors prevent repair work, the repairs shall be performed as soon as reasonably possible.

4. Evaluation and Selection

4.1 Proposal evaluation and recommendation for selection

The County reserves the following rights, to be exercised in the County’s sole and absolute discretion:

1) to determine whether any aspect of a proposal satisfactorily meets the criteria established in this RFP

2) to seek clarification or additional information from any proposer

3) to negotiate, sequentially or simultaneously, pricing and/or terms with any proposer or vendor

4) to reject any or all proposals with or without cause

5) to waive any irregularities or informalities in a proposal

6) to cancel or amend by addenda this RFP, in part or entirely

7) to award multiple contracts to proposers and/or

8) award a contract to a vendor that did not submit a proposal.

Evaluation of proposals by a selection committee, evaluation panel, County staff, a technical advisory committee, or by another group, individual or entity is advisory only. The County of Sacramento Board of Supervisors or its designee may consider or reject such evaluation(s) for any or all proposals. Such evaluations are for the sole benefit of the County of Sacramento Board of Supervisors or its designee, and as such, they are not binding upon the County, nor may they be relied upon in any way by a

Proposer.

The County will issue a Notice of Intent to Award (NOIA) and/or a Notice of Award (NOA), as applicable, to be published on OpenGov Procurement naming County’s selected consultant following completion of the evaluation process.

4.2 Evaluation of responsiveness

The County will consider all the material submitted by a proposer to determine whether the proposer’s offer is in compliance with the terms and conditions set forth in this RFP. Proposals that do not comply with the provisions in this RFP may be considered nonresponsive and may be rejected.

4.3 Evaluation of responsibility

To determine whether a Proposer is responsible, the County will consider the Proposer’s general qualifications to perform the requested services in a satisfactory manner; financial responsibility;

integrity; skill; past performance; and ability. Proposals from proposers considered non-responsible will be rejected.

4.4 Evaluation panel and evaluation criteria

After review of each responsive proposal, the County may award a contract to a successful proposer based on the evaluation criteria, or it may establish a short list of proposers for further consideration.

The short list of proposers may be asked to provide additional information. The short list of proposers may also be asked to attend an in-person or telephone interview/presentation, as determined by the

County in its sole discretion.

Evaluation criteria shall include the following:

1. Quality of the proposed services, including:

A. How well the proposed services meets the requirements as stated in the RFP

B. Ability to respond to emergency on-call repair requests

C. Demonstrated understanding of the scope of work and County’s needs

2. Experience and qualifications, including:

A. Firms Experience

B. Expertise of staff

C. Capability

D. Past performance

E. References

3. Quality of proposal compliance, including:

A. Compliance with proposal format and content

B. Acceptance of the County’s terms and conditions (Attachment E)

4. Overall project Value

4.5. Execution of contract

The selected proposer shall execute an agreement with the County of Sacramento, using the standard consulting agreement (Attachment E). Any requested revisions, deletions, or additions, to the language in the attached sample agreement shall be clearly set forth in the proposal for the County’s consideration.

Before a contract becomes effective between the County and any proposer, the contract must be reviewed by County Counsel and the contract award must be approved by the County Board of

Supervisors or its designee. If for any reason the County Board of Supervisors or its designee does not ratify and sign the contract then there are no binding obligations whatsoever between the County and the proposer relative to the proposed contract.

5. Proposal Format and Content

Each proposal shall include a description of work and a Cost Rate Schedule for mobilization, personnel, equipment, materials, and other expenses. The Cost Rate Schedule shall include all unit rates for the types of labor expected to be used on the project. Equipment and materials required for each repair shall be billed at cost plus markup.

The proposal shall be limited to a maximum of 8 pages plus the Cost Rate Schedule. Proposers may provide, in an appendix, additional information on the firm as relevant to the scope-of-work. Information provided in the proposal shall contain the following:

A. A description of the Installer’s scope of work

B. A brief summary of the firm’s background and organization

C. A statement of the Installer’s capability, qualifications, and experience for performing the repair services. This statement shall include a discussion of the firm’s ability to respond to emergency on-call repair requests.

D. Identification of any actual, apparent, or potential conflicts of interest that may result from the performance of the Work

E. A list of Installer’s references that may be contacted

F. Department of Child Support Services (DCSS) Contractor Certification of Compliance

5.1 Cover letter

Proposers must submit a cover letter that includes the following:

a. A statement that the proposal is effective for a period of one hundred eighty (180) days or the date the contract takes effect, whichever is later;

b. A statement confirming that the proposer has reviewed and agrees to be bound by County of

Sacramento Terms and Conditions (Attachment E) including insurance provisions; or, alternatively, a statement confirming that the proposer has reviewed and agrees to be bound by County of Sacramento

Terms and Conditions (Attachment E), excluding only those provisions that have been redlined for negotiation purposes and are included in their Proposal;

c. A statement that the proposer does not have an actual or perceived conflict of interest regarding this

RFP or in submission of their proposal; or alternatively, a statement explaining any conflict of interest and how to avoid, mitigate or neutralize the conflict;

5.2 Proposal

Proposals must contain the following information (and in the same order):

a. REFERENCES: An up-to-date list of references from at least three (3) organizations for which the firm has performed services within the past five (5) years that are similar to the requirements of the Scope of

Services Requested.

• Provide the name of the organization

• Contact name, street address, e-mail address, telephone number

• Date of Services provided

• Type of work conducted

b. TEAM EXPERIENCE: submit information regarding the organization’s prior experience o Experience: Provide a brief summary of the firm’s experience and past performance with similar projects. Briefly describe projects, the date(s) that services were provided, the function the firm performed on the project, and the methodologies used.

o Identify Key Project Staff: Include a listing of personnel potentially available for the Work, their position (i.e. Master Seamer), and their experience. Listed experience may be in the form of resumes. Resumes shall not exceed 2 pages in length and may be provided in an appendix to the proposal.

c. PRICING: Submit a proposed Cost Rate Schedule identifying rates for the following:

o labor o equipment o materials o mobilization o misc. rates or or expenses to do the work in the proposed scope.

Emphasis should be given to providing references where 1) the resources used are the same or mostly the same as those who will be used for the County’s purposes, and 2) the references are governmental organizations of similar size to the County. The County may request additional references from proposer.

6. Vendor Submissions

6.1. Certification of Independent Contractor Status*

"I hereby certify that the Contractor/Consultant firm employs five or more full-time employees. “Full-time”, as defined by the Internal Revenue Service, means persons employed for 20 or more hours per week, and excludes temporary employees whose term of employment will be less than one (1) month.

This certification satisfies the Internal Revenue Service criteria for treatment of the above-named consultant as an independent contractor, not an employee for tax withholding purposes."

☐ Yes, I certify that the firm has five (5) or more full-time employees.

☐ No, I certify that the firm does not have five (5) or more full-time employees, and the firm provides services to the general public. (The County will conduct a tax determination review if this option is selected.)

*Response required

6.2. Contractor Certification of Compliance, part 1*

WHEREAS it is in the best interest of Sacramento County that those entities with whom the County does business demonstrate financial responsibility, integrity and lawfulness, it is inequitable for those entities with whom the County does business to receive County funds while failing to pay court-ordered child, family and spousal support which shifts the support of their dependents onto the public treasury.

Therefore, in order to assist the Sacramento County Department of Child Support Services in its efforts to collect unpaid court-ordered child, family and spousal support orders, the following certification must be provided by all entities with whom the County does business:

Contractor/Consultant hereby certifies that either:

☐ the Contractor/Consultant is a government or non-profit entity (exempt), or

☐ the Contractor/Consultant has no Principals Owners (25% or more) (exempt), or

☐ each Principal Owner (25% or more) does not have any existing child support orders, or

☐ Contractor/Consultants Principal Owners are currently in substantial compliance with any court-ordered child, family and spousal support order, including orders to provide current residence address, employment information, and whether dependent health insurance coverage is available. If not in compliance, Principal Owner has become current or has arranged a payment schedule with the

Department of Child Support Services or the court.

*Response required

6.3. Contractor Certification of Compliance, part 2*

New Contract/Consultant shall certify that each of the following statements is true:

a. Contractor/Consultant has fully complied with all applicable state and federal reporting requirements relating to employment reporting for its employees; and

b. Contractor/Consultant has fully complied with all lawfully served wage and earnings assignment orders and notices of assignment and will continue to maintain compliance.

NOTE: Failure to comply with state and federal reporting requirements regarding a Contractor's employees or failure to implement lawfully served wage and earnings assignment orders or notices of assignment constitutes a default under the contract; and failure to cure the default within 90 days of notice by the County shall be grounds for termination of the contract. Principal Owners can contact the

Sacramento Department of Child Support Services at 1-866-901-3212, by writing to P.O. Box 269112, Sacramento, 95826-9112, or via the Customer Connect website at www.childsup.ca.gov .

☐ Please confirm

*Response required

6.4. Proposal (without cost proposal)*

Upload your complete Proposal here. Do not include your cost proposal in this section.

*Response required

6.5. Cost proposal (separate)*

Upload your cost proposal here. Confirm that your cost proposal is not attached with your Proposal and is attached separately here.

*Response required

6.6. Confidential sections of proposal (if applicable)

The County will treat all information submitted in a proposal as available for public inspection once the

County has awarded a contract. If you believe that you have a legally justifiable basis under the

California Public Records Act (Government Code section 6250 et. seq.) for protecting the confidentiality of any information contained within your proposal, you must identify any such information, together with the legal basis of your claim in your proposal, and present such information in this section as part of your proposal response package. The final determination of whether the County will assert a proposer's claim of confidentiality shall be at the sole discretion of the County. Click "file upload" below to upload any proposal documents you consider to be confidential documents.

6.7. Proposed Contract Exceptions*

If proposing any exceptions to the County's Sample Contract which includes Exhibits A, B and C, then upload a redlined revision of the Sample Contract attached to this solicitation here. Any submissions are for negotiation purposes only.

If no exceptions are proposed, please submit a response stating your willingness to sign the agreement in the attachments with no exceptions taken.

http://www.childsup.ca.gov/

6.8. Provide the full contact name, title, and e-mail of the signatory for your firm. Provide contact information for the contract manager for your firm in order to distribute contract documents, including other recipients requiring a copy, if awarded.*

Signatory: name, title, email

Contract manager/admin: name, phone, email

*Response required

6.9. PaymentWorks Contact*

Please provide the name and e-mail for a finance point-of-contact for your firm that will receive an invitation to complete the vendor registration process on the County's PaymentWorks portal.

To clarify, if you are set-up with other agencies using PaymentWorks, that information is not available to the County, so you must complete this process for the County.