Replace AHUs 2,5,7 at Sablich Center

Amendment / Modification

This amendment modifies the solicitation by:

• Extending the proposal due date from May 27, 2026, to June 1, 2026, at 11:00 AM CST.

• Updating the Wage Determination.

• Section A - Solicitation/Contract Form: The Response Due Date and Solicitation Number have been updated.

• Section J - List of Attachments: Attachment 4 (Wage Determination) has been deleted and a new "Updated Wage Det." has been added as a Line Item Attachment for Line Item 0001.

• The deadline for proposal submissions has been extended to June 1, 2026.

• Bidders should ensure they are using the updated Wage Determination.

Other / Unclassified

This document is a General Decision Number (MS20260050) dated May 18, 2026, for building construction in Harrison County, Mississippi. It lists prevailing wage rates and fringe benefits for various construction trades, including electricians, power equipment operators, ironworkers, plumbers, pipefitters, sheet metal workers, truck drivers, tile setters, sprinkler fitters, roofers, various equipment operators, laborers, cement finishers, carpenters, bricklayers, and welders.

It also includes information regarding Executive Order 13706 (Paid Sick Leave for Federal Contractors) and Executive Order 13658 (Establishing Paid Sick Leave for Federal Contractors), outlining contractor obligations and worker protections. Details on how to add unlisted classifications after award and the process for wage determination appeals are also provided.

This document is crucial for bidders on construction opportunities in Harrison County, Mississippi, as it specifies the minimum prevailing wage rates and fringe benefits that must be paid to laborers and mechanics employed on the contract. Bidders must incorporate these rates into their cost proposals and ensure compliance during contract performance. Understanding the EO requirements related to paid sick leave is also essential for accurate cost estimation and contract management.

Questions & Answers / Clarifications

This document provides responses to pre-bid questions regarding the MAHG 25-1074 Replace AHUs 2,5,7 project at Sablich AHUs B701.

• Personnel Roles: While ideally three different personnel fill Superintendent, Safety, and QA/QC roles, the Superintendent or QA/QC may also fulfill the SSHO role. The Superintendent cannot serve as QA/QC, and QA/QC cannot serve as Superintendent.
• Plans: A project-specific QA/QC plan and a project-specific safety plan are required.
• Tax Exemption: The project is not tax-exempt.
• Drawings: The drawing set released on SAM, marked as 95%, is the 100% complete and final set.
• Flexible Air Ducts: The maximum flexible air duct length is 5 feet, overriding detail 3 on M-500 per UFC 3-410-01.
• General Notes: General Note 11 applies to AHU 2,5,7 on M-100 through M-103 at all 3 floors. DDC t-stats zone control 1 through 11 are in M-102 and M-103.
• Diffusers: Light Troffer Diffusers Schedules are to be provided.
• Ductwork/Air Distribution: Numerous ducts need reconnection, supply air diffusers added to each room, pneumatic dampers changed, and flex ducts reconnected. Refer to keynotes on drawings sheet M-104.
• Existing Controls: Johnson Control Inc Metasys currently has the existing controls.
• Equipment Information: Nameplates or serial numbers for specific equipment can be provided upon request for an itemized list.
• Temporary Air: Temporary air is not required. Refer to SOW sections 3.2.4.1.7, 3.2.4.1.8, and 3.2.4.1.9 regarding AHU replacement sequence and continuous facility operation.
• Condensate Drains: Gravity-operated drains do not require elevation with pipe supports but must be sloped to drain properly.
• Asbestos: Asbestos testing is not anticipated, and no abatement is required unless hazardous material is suspected or identified during execution, in which case SOW 4.6 guidance applies.
• Damper Actuators: Damper actuators are included with the unit; the mechanical contractor is responsible for a controls contractor to complete the controls portion.
• Filter Status: A differential pressure sensor for AHU return air for dirty filter status is required.
• Thermostats: No new DDC T-Stat is required unless existing is inoperable. Verify existing humidity control and temperature sensors.
• Motorized Dampers: The entire damper with actuator must be replaced with new. Damper air flow and temperature are modulated by the zone T-Stat.
• AHU 6: AHU 6 is not included in this contract.
• Roof Curbing: Existing curbing is to be repaired as stated in the SOW. Contractors are not required to price for new roof curbs, but must provide a certified curb adapter.
• Roof Warranty: There is no warranty on the existing roof. A roofing contractor is required to ensure the roof is watertight.
• Control Valves/Piping: New control valves and piping are to be used.
• Phasing: Contractor must follow the phasing outlined in the SOW sections 3.2.4.1.7, 3.2.4.1.8, and 3.2.4.1.9.
• Electrical: Contractor must follow the SOW scope for electrical requirements, including new breakers, wire, and disconnects for each new AHU. Only one AHU can be demolished at a time.
• Unforeseen Condition: Addendum 1 provides clarification on an unforeseen condition regarding lightweight concrete on top of steel decking during AHU-6 removal.

These clarifications address specific requirements, materials, and procedures, potentially impacting bidder understanding of scope and cost. Bidders should review these responses carefully to ensure their proposals accurately reflect the project requirements.

Amendment / Modification

This amendment (0001) to Solicitation FA301026R0007, dated April 23, 2026, makes the following changes:

• Pre-Bid Site Visit Questions: Questions and answers from the Pre-Bid Site Visit have been uploaded to the SAM.gov solicitation posting as of May 7, 2026. Offerors must acknowledge receipt of these questions and answers by signing this amendment.

• New Clause Added: Clause 52.222-90, "Addressing DEI Discrimination by Federal Contractors" (Deviation 2026-00038), has been added to the solicitation.

• Contract Clauses: FAR Clause 52.222-90 has been added.

• Attachments:

  • Attachment 10 - Pre-Bid Q&A Doc has been added.
  • Attachment 11 - Addendum 1 has been added.

• Offerors are required to acknowledge receipt of the Pre-Bid Site Visit Questions and Answers by signing this amendment.

• All other terms and conditions of the original solicitation remain unchanged.

Solicitation / RFP / RFQ

This solicitation is for the "Replace AHUs 2, 5, 7 Sablich Center" project at Keesler AFB, MS. The estimated magnitude of the construction is between $1,000,000.00 and $3,000,000.00. This acquisition is a 100% Service-Disabled Veteran-Owned Small Business set-aside.

• Furnish all equipment, labor, supervision, and materials necessary for the replacement of AHUs 2, 5, and 7 at the Sablich Center.

• Work must be performed in accordance with the Statement of Work, Specifications, and Drawings.

• Contract Type: Firm Fixed Price.

• Period of Performance: 210 calendar days from the date of award.

• Estimated Value: Between $1,000,000.00 and $3,000,000.00.

• Proposals will be evaluated using the Lowest Price Technically Acceptable (LPTA) method.

• Key deadlines:

  • Site Visit: April 30, 2026, 2:00 PM CDT
  • Proposal Due Date: May 27, 2026, 11:00 AM local time

• Proposals must be submitted electronically via email or hard copy.

• This acquisition is a 100% Service-Disabled Veteran-Owned Small Business set-aside.

• A site visit is scheduled for April 30, 2026. Attendees must have a valid driver's license, vehicle registration, and proof of insurance for base access.

• Funds are not presently available for this effort; the Government reserves the right to cancel the solicitation.

• Offerors must acknowledge all amendments to the solicitation.

• Offerors must provide proposals valid for at least 180 calendar days.

Amendment / Modification

This addendum addresses an unforeseen condition identified during the removal of AHU 6.

• The concrete curb was observed to be within 6-8 inches of an existing lightweight concrete slab during the removal of AHU 6.
• This condition is not suspected to exist under every AHU but could exist.
• Contractors are informed of this unforeseen condition.

This addendum serves to inform contractors of a potential site condition that may impact their work. It does not appear to modify proposal deadlines or submission requirements.

Other / Unclassified

This document is a sign-in sheet from a site visit held on April 30, 2026, for the "Replace AHUs 2,5,7 at Sablich Center, B701 MAHG 25-1074" requirement, associated with Solicitation # FA3010260007.

It lists attendees from various companies, including their names, companies (indicating Prime or Subcontractor status), phone numbers/email addresses, and signatures.

The "General Scope of Work" section briefly describes the requirement: the Service Provider shall furnish all necessary equipment, labor, supervision, and materials for the replacement of AHUs 2,5,7 at Sablich Center, Keesler AFB, MS, in accordance with the SOW, drawings, specifications, and contract terms.

It also states that technical proposals are requested and directs bidders to Sections L and M for more information. The Contracting Officer is Alicia Bowman, and the Contract Specialist is A1C Ty Le. Questions are due by May 4, 2026, and will be posted to SAM.gov. Proposals are due May 27, 2025.

This document is relevant to potential bidders as it confirms the date and location of a site visit for the opportunity. It also provides contact information for the Contracting Officer and Contract Specialist, and crucially, lists the deadline for submitting questions and the due date for proposals. The attendee list may also indicate potential competitors or subcontractors who attended the site visit.

Form / Attachment / Pricing Sheet

This document, "Attachment 2 - MAHG251074 Replace AHUs 2 5 7 Sablich Center B701 - SPECS.pdf", contains specifications related to the replacement of Air Handling Units (AHUs) 2, 5, and 7 at the Sablich Center, Building 701. It details the technical specifications for these components.

• Specifications for AHUs 2, 5, and 7: The document outlines the technical requirements for these specific Air Handling Units.
• Location: Sablich Center, Building 701.
• Project Identifier: MAHG251074.

This attachment provides critical technical specifications that potential bidders must review to understand the exact requirements for the AHUs being replaced. This information is essential for preparing accurate proposals and ensuring compliance with the project's technical demands.

Solicitation / RFP / RFQ

This solicitation is for the "Replace AHUs 2, 5, 7 Sablich Center" project at Keesler AFB, MS. The estimated magnitude of the construction is between $1,000,000.00 and $3,000,000.00. This acquisition is a 100% Service-Disabled Veteran-Owned Small Business set-aside.

• Furnish all equipment, labor, supervision, and materials necessary for the replacement of AHUs 2, 5, and 7.

• Work must be performed in accordance with the Statement of Work, Specifications, and Drawings.

• Contract Type: Firm Fixed Price.

• Period of Performance: 210 calendar days from the date of award.

• Estimated Start Date: July 2, 2026

• Estimated Completion Date: January 28, 2027

• Proposals are due by 11:00 AM local time on May 27, 2026.

• Evaluation will be based on Lowest Price Technically Acceptable (LPTA) method.

• Key deadlines include a site visit on April 30, 2026, at 2:00 PM CDT.

• This acquisition is a 100% Service-Disabled Veteran-Owned Small Business set-aside.

• Offerors must acknowledge all amendments to the solicitation.

• Valid driver's license/identification card, vehicle registration, and proof of insurance are required for base access for the site visit.

• Funds are not presently available for this effort; award is contingent upon availability of funds.

Form / Attachment / Pricing Sheet

This document contains architectural and engineering drawings for the "Replace AHU's 2,5,7 Sablich Center B701" project at Keesler Air Force Base. It provides essential visual information, including HVAC plans, roof plans, details, control diagrams, schedules, and electrical plans, crucial for bidders to understand the project's scope and requirements.

• Cover Sheet (G-001): Project details, MAHG251074, Sept 2025 issue date.
• Mechanical Notes (M-001): Installation requirements, material specs, compliance standards (IMC, SMACNA).
• Mechanical Demolition Roof Plan (MD-100): Identifies AHUs for demolition (AHU-2, AHU-5, AHU-6, AHU-7).
• Existing HVAC Plans (M-100, M-101, M-102, M-103, M-104, M-105): Detail current HVAC layout on first and second floors, including ductwork, diffusers, AHUs, and specific "Keynotes" for repairs/modifications on AHUs 2, 5, and 7 (e.g., patching, capping grilles, reconnecting ducts, repairing dampers).
• Roof HVAC Plan (M-106): Shows AHU and cooling tower locations.
• Details (M-500): Enlarged views of roof curb installations, take-offs, and diffusers.
• HVAC Controls (M-600): Sequence of operations for the control system, including set points, freeze protection, and VFD operation.
• Schedules (M-601): Diffuser, register, and grille specifications.
• Electrical Plans (E-400, E-600): Power distribution, switchgear locations, and circuit breaker diagrams for AHU-2, AHU-5, and AHU-7, including breaker sizes.

These drawings are critical for bidders to visualize existing conditions, understand the scope of demolition and replacement for AHUs 2, 5, and 7, and identify specific locations and technical requirements for the new HVAC system. Bidders must review these drawings to accurately estimate costs, develop a work plan, and ensure compliance with all specified technical, control, and electrical requirements.

Form / Attachment / Pricing Sheet

This document is a General Decision, specifically a wage determination for building construction projects in Harrison County, Mississippi. It outlines the prevailing wage rates and fringe benefits required for various construction trades under federal contracts subject to the Davis-Bacon Act.

• General Decision Number: MS20260050
• State: Mississippi
• County: Harrison County
• Construction Type: Building Construction Projects (excluding single-family homes or apartments up to 4 stories).
• Trades and Rates: Lists specific trades (e.g., Electrician, Ironworker, Plumber, Carpenter) with their corresponding hourly wage rates and fringe benefits.
• Executive Order Notes: Includes information on paid sick leave (EO 13706) and minimum wage requirements (EO 13658) applicable to federal contractors.
• Wage Determination Appeals Process: Outlines the procedures for appealing wage determinations.

This wage determination is crucial for bidders to accurately estimate labor costs for any construction project in Harrison County, Mississippi, that falls under the scope of the Davis-Bacon Act. Contractors must ensure they pay at least these specified rates to laborers and mechanics employed on the contract work. Failure to comply can result in penalties. Bidders should use these rates when preparing their proposals to ensure cost competitiveness and compliance.

Form / Attachment / Pricing Sheet

This document outlines the procedures for submitting various items for review and approval by the Contracting Officer (CO) as part of a contract. It details the classification of submittals, the approval process, and the requirements for different types of submissions.

• Submittal Classifications: Differentiates between "Contracting Officer Approval" (shop drawings) and "Information Only" submittals.
• Approval Process: CO approval indicates general method and materials are satisfactory but does not relieve the contractor of responsibility for errors or design adequacy. Substitutions require explanation.
• Disapproved Submittals: Requires corrections and prompt resubmittal. Changes to the contract must be formally notified.
• General Submission Requirements: Submittals must be complete, detailed, and comply with contract requirements. They must be checked, approved, and certified by the contractor on the transmittal form (AF 3000).
• Submittal Register (MSS): A schedule provided by the government that the contractor must adhere to.
• Scheduling: Submittals for interrelated items should be coordinated. A 30-day review period is allocated for CO action, with specific times for MSS items (10 days) and deviations (14 days).
• Transmittal Form (AF 3000): Used for all submittals, requiring specific information and identification of specification paragraphs or drawing sheets.
• Buy American Compliance Certification: A mandatory letter signed by the contractor certifying compliance with the Buy American Act, with templates provided for different contract value thresholds.
• Information Only Submittals: Marked "FIO," these are for informational purposes and may not be returned. They do not require CM approval but can be subject to CO review. Errors found require resubmission as an "approval" action.

This document is crucial for understanding the administrative and procedural requirements for submitting materials, drawings, and other documentation required under the contract. Adhering to these submittal procedures, including the use of the correct forms, timely submissions, and proper certifications (especially Buy American), is essential for contract compliance and avoiding delays or disapproval of work.

Form / Attachment / Pricing Sheet

This document is a Material Submittals Schedule for Project MAHG251074, "Replace AHUs 2, 5, 7 Sablich Center B701," under Solicitation FA301026R0007. It outlines the required submittals from the contractor for various project components.

• Submittal Items: Includes a list of required submittals such as HazMat Questionnaires, MSDS, Reporting Forms, Recycling Reports, Warranties, and specific material/method sections (e.g., Basic Mechanical Materials, HVAC Air Distribution, Thermal Insulations, Electrical Materials, Carpentry, Doors, Frames, Joint Sealants, Tile, Grout, Paint).
• Required Documentation: Specifies the types of documentation needed for each item (e.g., Certificate of Compliance, Shop Drawings, Samples, Catalog Data, Technical Data, Test Reports).
• Number of Copies: Indicates the number of copies required for each submittal type, often defaulting to 3 or 5 if not electronically submitted.
• Submission Dates: Defines submission deadlines relative to key project milestones like Notice to Proceed (NTP) or the end of the contract.

This schedule is crucial for bidders to understand the specific documentation and material submittals required throughout the project lifecycle. It details the types of information, the quantity of each, and the timing for submission, which must be factored into project planning and proposal pricing. Failure to adhere to these submittal requirements can impact project progress and compliance.

Form / Attachment / Pricing Sheet

This document, "Attachment 8 - MAHG251074 Replace AHUs 2 5 7 Sablich Center- 2nd floor As-Builts.PDF", contains as-built drawings for the 2nd floor of the Sablich Center. These drawings are likely intended to provide detailed information about the existing mechanical, electrical, and plumbing systems, specifically related to Air Handling Units (AHUs) 2, 5, and 7, which are part of the replacement project.

• Detailed floor plans of the 2nd floor of the Sablich Center.
• Schematics and layouts of existing systems, including HVAC, electrical, and plumbing.
• Identification of AHUs 2, 5, and 7 within the existing infrastructure.

These as-built drawings are crucial for bidders to understand the current state of the facility and the specific locations and configurations of the AHUs to be replaced. This information will inform the scope of work, material requirements, installation planning, and overall cost estimation for the project. Bidders should carefully review these drawings to identify any potential challenges or complexities related to the existing infrastructure and the proposed replacement of AHUs 2, 5, and 7.

Form / Attachment / Pricing Sheet

This document is a "Certified Test, Adjust and Balance Report" for The Sablich Center Evaluation. It details the results of testing, adjusting, and balancing of the air and hydronic systems within the facility.

• Project Information: Includes project name, job number, date, and key personnel (TAB CP, TAB CT).
• System Identification: Details specific units tested, such as RTUs (RTU-1 through RTU-9) and AHUs.
• Test Data: Contains detailed reports for:
  • Building Ventilation Summary
  • Air Moving Test Sheets (including fan and electrical data, cooling/heating temperatures, and zone airflow measurements)
  • Grille Sheets (listing design vs. actual CFM for various zones and outlets)
  • Static Profile Test Sheets
  • Traverse Summaries (detailing duct and grille airflow measurements)
  • Hydronic Test Sheets (measuring coil pressure drop and GPM)
• Observations and Recommendations: Report summaries for RTUs and AHUs highlight issues such as duct leakage, damper functionality, and recommendations for pulley sheave changes or motor pulley balancing.

This report provides critical performance data for the HVAC systems at The Sablich Center. Bidders can use this information to understand the current state of the systems, identify any deficiencies or areas for improvement, and assess the accuracy of existing performance data. This is particularly relevant for any work involving HVAC system modifications, repairs, or performance verification.

Form / Attachment / Pricing Sheet

This document, "Attachment L-01 - Past Performance Reference Lists," is a form required for bidders to provide details about their past performance on relevant contracts. It is used in conjunction with Solicitation FA301026R0007, specifically for the MAHG 25-1074 - Replace AHU's 2,5,7 at Sablich Center requirement.

Page 1:

• Company Name: To be filled in by the bidder.
• Contract Number: Contract or task order number, identifying if CPAR is available.
• Description of Work Performed: Details of work performed as a prime or sub-contractor.
• Contract Period of Performance (POP): Duration of the contract.
• Contracting Agency, POC/Customer Name, Phone #, & Email: Contact information for the agency.
• Contract/Task Order Value: The value of the contract.
• Performed by a Proposed Subcontractor, Key Personnel, or Teaming Arrangement?: A yes/no indicator, requiring completion of page 2 if "yes."
• Comments: Space for additional performance information, including comments on unacceptable performance.

Page 2:

• Contract Number: As above.
• Subcontractor, Teaming Arrangement, or Key Personnel: Details of any such arrangements.
• Describe Function/Task/3rd Party Affect on Performance: Explanation of the role and impact of subcontractors, teaming partners, or key personnel on past performance and projected performance for this contract, including percentage completed.

Bidders must complete this form accurately to provide evidence of their past performance. This information is crucial for the government's evaluation of the bidder's capability to successfully execute the requirements of the MAHG 25-1074 requirement. Failure to provide complete and accurate information may negatively impact the evaluation of the proposal.

Form / Attachment / Pricing Sheet

This document is a Past Performance Questionnaire required for Solicitation No. FA301026R0007. It is used to gather feedback on a contractor's performance for a previous or ongoing contract, which will be used as part of the proposal evaluation for the mentioned solicitation.

• Contact Information: Fields for POC/Alternate POC Name, Phone, and Email.
• Offeror Information: Name, Phone, and Email of the Offeror.
• Contract Referenced: Details of the contract being referenced, including Contract Number, Contract Value, and Period of Performance.
• Evaluator Information: Name, Agency/Company, Title, Phone, and Email of the person completing the questionnaire.
• Evaluation Sections: Includes ratings for Quality of Work, Timeliness, Ability to Resolve Timeliness Problems, Management of Work Aspects, and Regulatory Compliance. Each section provides definitions for performance levels (Exceptional, Very Good, Satisfactory, Marginal, Unsatisfactory, N/A).
• Comments: Space for detailed narrative feedback within each evaluation section and for an overall rating.
• Overall Rating: A final assessment of the Contractor's overall performance.

This questionnaire is sent to references provided by the offeror. The responses will directly impact the Past Performance evaluation factor of the proposal. Bidders should ensure their references are aware of the submission deadline and can provide accurate and detailed feedback. The questionnaire is due no later than 11:00 AM CST on 27 May, 2026, and must be submitted directly to the Contracting Officer via a corporate or government email account.

Form / Attachment / Pricing Sheet

This document, "Attachment 7 - MAHG251074 Replace AHUs 2 5 7 Sablich Center - 1st Floor As-Builts.PDF", provides "as-built" drawings for the first floor of the Sablich Center. These drawings are critical for understanding the existing conditions of the facility, specifically related to the Air Handling Units (AHUs) that are slated for replacement under opportunity MAHG251074.

• Detailed floor plans of the first floor of the Sablich Center.
• Schematics and layouts indicating the current installation of mechanical systems, including ductwork, piping, and electrical components related to AHUs.
• Identification of existing AHU locations (Units 2, 5, and 7).

These as-built drawings are essential for bidders to accurately assess the scope of work for replacing AHUs. They provide vital information on the existing infrastructure, potential site constraints, and the physical layout where new equipment will be installed. Bidders should use these drawings to inform their technical proposals, cost estimates, and installation planning.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Statement of Work (SOW) details the requirements for demolishing and replacing three rooftop Air Handling Units (AHUs) at Sablich Center, B701, Keesler AFB, MS. The work must be performed in accordance with the contract terms and conditions.

• Demolish and replace three existing AHUs (identified as 2, 5, and 7) in kind.

• Demolition includes removing old breakers, disconnect switches, and wiring. Only one AHU can be demolished at a time.

• Replace every 6" branch take-off with a new 8" branch take-off with a volume control damper and 8" flexible duct.

• Install new breakers, disconnect switches, and wiring for each new AHU.

• Repair roof curbs and roofs after installation to eliminate thermal, moisture, and weather intrusion.

• Anchor new AHUs and curbs according to UFC hurricane criteria.

• Test, Adjust, and Balance (TAB) the completed system to ensure positive pressure.

• Location: Sablich Center, B701, Keesler AFB, MS.

• Performance will begin 10 days after award and end 210 calendar days later.

• Normal operations of the facility will continue during the contract period.

• All work must comply with local, state, and federal codes (IBC, UFC, AFI, NFPA, NEC, ABA).

• Demolished materials must be removed from the site and disposed of off-site in a legal landfill; no on-site stockpiling.

• Contractor is responsible for repairing or replacing any items damaged during construction.

• Maintain constant daily cleaning of the work area and protect existing elements from dust and debris.

• Disconnect and secure ceiling grid devices (strobes, alarms, routers) to the structure above; reinstall after ceiling system is in place.

• Do not demolish any AHU without an immediate replacement onsite.

• Hazardous materials are not anticipated, but if encountered, work must stop immediately, and the CO contacted.

• Contractor must obtain all required permits, including DIG PERMIT, BURN PERMIT, and CONFINED ENTRY PERMIT.

• Comply with all safety, security, traffic, and fire regulations, including OSHA requirements and specific standards like NFPA 241 and UFC 3-600-01.

• Environmental protection measures, including storm water management and waste disposal, must be followed.

• Asbestos abatement and lead-based paint management procedures must be followed if applicable.

• Contractor must provide manufacturer warranties, operations and maintenance manuals, test reports, and as-built drawings.