B08_SOW.pdf

Repair to HVAC and Mold Remediation at Sabine NWR Page 1 of 13 March 2025

STATEMENT OF WORK

Repair to HVAC and Mold Remediation Services

At Sabine National Wildlife Refuge

Southeast Region

PART 1. GENERAL

1.1. The contractor shall provide all materials, labor, supplies, equipment, and any other necessary incidentals to complete the work in accordance with the statement of work and all applicable codes. This includes providing a new HVAC system and remediation services within the Administrative Office at Sabine National Wildlife Refuge, located at 3000 Holly Beach Highway, Hackberry, LA 70645, Cameron Parish.

1.2. The scope encompasses all tasks required to install a new HVAC system and to relocate the air handling unit (AHU) to the specified electrical closet. The existing ductwork in the 1,800-square-foot office building must be replaced and reconfigured to facilitate the integration of the new system, the relocation of the AHU, and compliance with return air specifications. The new system shall incorporate considerations for the region's humid climate and elevated temperature conditions.

Furthermore, the contractor is tasked with performing mold remediation services, which include conducting a comprehensive mold assessment, detection, and remediation within the interior of the building. Field investigations shall be executed as needed to evaluate and document current site conditions. All quantities and measurements must be validated by the contractor prior to the initiation of work.

A. The Period of Performance will conclude 120 days from the date of the Notice to Proceed.

B. A Pre-Proposal Site Visit will be conducted at the project site. Attendance is highly recommended.

1) The purpose of the meeting will be to visit the site, review existing conditions, and discuss the performance requirements of the project.

2) Drawings of the existing buildings are available.

1.3. General Requirements: Complete work in accordance with all applicable Federal, State and Local codes and regulations (latest edition at the time of contract award) with the following establishing the minimum requirements:

A. International Building Code, latest edition

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B. NFPA 101 Life Safety Code C. National Electrical Code D. International Plumbing Code

E. International Mechanical Code F. ASHRAE Handbook of Fundamentals G. ASHRAE/IENSA 90.1 - 2016 Energy Standard for Buildings.

H. ASHRAE Standard 55-2017, Thermal Environmental Conditions for Human

Occupancy I. ASHRAE 62.1 -2016 Ventilation for Acceptable Indoor Air Quality J. OSHA Regulations (Federal and State) K. Consumer Product Safety Commission 16CFR 1201 Safety Standards for

Architectural Glazing Materials L. Clean Water Act M. Architectural Barriers Act N. Americans with Disabilities Act (ADA) Accessibility Guidelines

1.4. Work is comprised of demolition, removal, and construction of electrical utilities, including procuring and furnishing all materials, equipment, services, and labor reasonably inferable from the Statement of Work and Pre-Proposal Site Visit. Contractor shall verify quantities.

PART 2. DESCRIPTION OF WORK

HVAC Repairs and Remediation Services for Office Building; The contractor shall provide and install a new HVAC system in the designated electrical closet. The existing system shall be decommissioned and removed. The contractor shall perform mold remediation services as required.

(The contractor must submit product data for all materials and equipment used in this section for review and approval. Provide duct layout for review and approval.)

2.1. Contractor shall provide and install a new HVAC system in compliance with EPA Stationary Refrigeration Safe Disposal Requirements (40 CFR Part 82, Subpart F) under Section 608 of the Clean Air Act. The new system, consisting of a condensing unit and air handler, shall be at minimum a 2-stage, 18 SEER pre-charged heat pump with backup emergency electric heat and programmable thermostat controls. The system shall be able to maintain interior humidity levels between 30% - 50% RH.

A. Contractor shall Remove and properly dispose of the existing HVAC system and ductwork in accordance with all applicable regulations.

B. Contractor shall install the new air handling unit (AHU) in the electrical closet, ensuring compliance with code requirements for the new location. Size the system appropriately to accommodate building size, condensation control, humidity control, and load capacity.

1) Provide and install new ductwork, drains, system components, plumbing and electrical connections to meet all applicable building codes. Ensure duct sizing is appropriate for the unit’s new location.

2) Verify that the return air system is sufficient for optimal system operations.

3) Ensure proper placement of drains to align with manufacture and code

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4) Install hurricane pad brackets as required by code.

C. Contractor shall have a comprehensive test and balance (TAB)performed in accordance with: AABC's "National Standards for Total System Balance" and NEBB's "Procedural Standards for Testing, Adjusting, and Balancing of Environmental Systems".

1) Provide a detailed test and balance report for review.

2) TAB specialists must be certified by AABC, NEBB, or TABB

D. Contractor shall replace two (2) attic exhaust fans sized to meet the airflow requirements of the building.

E. Contractor shall replace water-damaged insulation under ductwork with new batt insulation in the attic, ensuring R-value equal to existing. (Basis of Design: 40% of batt insulation replacement.)

F. Contractor shall replace water-damaged ceiling tiles to match the existing style and specifications. (Basic: One (1) box of 2x2 ceiling tiles.) Excess tiles shall become the property of the government.

G. Contractor shall supply a louvered door for the electrical closet. The dimensions of the louver shall be established based on airflow specifications.

2.2. Mold Remediation Services – The contractor shall perform a comprehensive mold evaluation, detection, and remediation within the interior of the building.

A. All operations shall adhere to the guidelines established by the EPA, OSHA, and recognized industry standards for mold remediation. This includes, but is not limited to, the following documents: EPA’s Mold Remediation in Schools and Commercial Buildings Guide; ANSI/IICRC S520 Standard for Professional Mold Remediation;

OSHA Standards for Indoor Air Quality and Worker Safety.

B. Upon completion of the mold evaluation, the contractor is required to provide a Mold Detection and Mitigation Report to the Contracting Officer’s Representative (COR) via email. This report shall encompass: findings regarding the presence and locations of mold, identify potential causes of mold growth, as well as recommended remediation methodologies.

1) Perform a comprehensive mold assessment that includes: 1) A visual inspection of all potentially affected areas. 2) Measurement of moisture levels and assessment of humidity. 3) Air and surface sampling as necessary to identify mold species and contamination levels. 4) Collection of air samples from the affected office and the exterior for comparative analysis prior to remediation.

2) Document the presence, type, and extent of contamination, identifying potential causative factors for mold growth (e.g., leaks, inadequate ventilation) and the source location. Provide recommendations for the control of moisture sources, mold removal procedures, including containment protocols, and post-remediation verification.

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C. Contractor shall address and repair the source of moisture (e.g., leaks, pipe condensation, insulation issues) prior to remediation to prevent recurrence.

D. Mold Containment and Remediation - Implement containment barriers utilizing polyethylene sheeting and maintain negative air pressure as required. Employ HEPA-filtered air scrubbers to mitigate the spread of airborne mold spores. HVAC vents must be sealed, and affected areas isolated from occupied spaces.

E. Mold Removal and Surface Cleaning - Remove and dispose of contaminated materials (e.g., drywall, ceiling tiles, insulation) in accordance with EPA guidelines. Clean non-porous surfaces using EPA-registered fungicidal disinfectants. Utilize HEPA vacuuming and damp wiping procedures for all affected surfaces.

F. Structural Drying and Moisture Control - Utilize industrial dehumidifiers, air movers, and moisture monitoring equipment to ensure thorough drying of affected areas.

Identify and repair any leaks or water intrusion points, and address humidity control issues to reduce the risk of subsequent mold growth.

G. Post-Remediation Verification - The contractor shall execute a final visual inspection and moisture testing to confirm that all affected areas are dry and devoid of mold. If stipulated in the remediation plan, clearance testing (including air and surface sampling) shall be conducted to validate successful remediation. Air samples must be collected from both the affected office and the exterior for before-and-after comparison. A Post-Remediation Report shall be delivered to the Contracting Officer’s Representative (COR) and shall include: 1) A summary of remediation activities conducted. 2) Results from post-remediation testing demonstrating compliance with industry standards. 3) Recommendations for ongoing moisture control and mold prevention strategies.

PART 3. CONSTRUCTION SERVICES

3.1. GENERAL

3.1.1. Following the Issuance of the Contract, the contractor shall provide the following items to the COR at the initial walkthrough prior to construction for approval and submittal into the contract file:

A. Superintendent Letter/Resume B. Submittal List C. Safety Plan - Ensure safety plan is in alignment with all applicable standards and copy is made available (hard-copy or electronic) to include hazard communication guidance.

D. QA/QC

E. Discussed and agreed to project schedule reflective of the critical path and other phases of the work.

3.1.2. Possess and maintain, for the duration of this project, a state license as a general contractor in the State the project is located, if required by the state.

3.1.3. Provide supervision, labor, materials, equipment, tools, construction equipment and machinery, inspection, testing, start-up, water, heat, utilities, transportation, and other facilities and services necessary for proper execution and completion of the Work, whether temporary or permanent and whether or not incorporated or to be incorporated in the Work.

3.1.4. The submittal requirements shall be clearly defined in the contract documents, including the

Remediation at Sabine NWR Page 5 of 13 March 2025 types of materials, formats, and deadlines. Submittals may include but are not limited to shop drawings, product data, samples, material certifications, test reports, and operation manuals. The submitter shall review the contract documents thoroughly to understand the submittal requirements. Submitters shall ensure that all submittals are accurate, complete, and comply with the project specifications, codes, and regulations. Submitters shall coordinate with relevant parties, such as manufacturers and suppliers, to obtain necessary information and materials for the submittals. The submitter shall label each submittal clearly with the appropriate project name, number, and description.

3.1.5. Record Drawings and Specifications: Maintain one set of working drawings and specifications, for record purposes, on the project site while work is in progress. Clearly and accurately record the as-constructed work in red. Record swing-tie distances from permanent points for all underground items. Include modifications and RFIs.

3.1.6. The contractor shall maintain Daily Logs and Checklists to record daily activities and submit them bi-weekly. Additionally, they are required to provide a Progress Chart in the form of a bar chart and diligently update the progress schedule monthly throughout the contract performance period. During normal working hours throughout the duration of the contract, the contractor must promptly furnish information and provide reasonable facilities and access for obtaining information respecting: the character of the materials, condition of the work-in-progress, number of workers employed, their pay rate, time worked, inspection reports and test results from sampling and testing laboratories, and similar information.

3.1.7. Have at least one qualified supervisor capable of reading, writing, and conversing fluently in the English language on the job site during working hours.

3.1.8. Perform all construction activities efficiently and with the requisite expertise, skill, and competence to satisfy the requirements of the Contract Documents. At all times exercise complete and exclusive control over the means, methods, sequences, and techniques of construction.

3.1.9. Assume responsibility for the proper performance of the Work of Subcontractors and all acts and omissions in connection with such performance. Nothing in the Contract Documents is intended or deemed to create any legal or contractual relationship between Government and any Subcontractor or Sub Subcontractor.

3.1.10. Utilize Subcontractors who are duly licensed and qualified to perform the work.

Government may reasonably object to Contractor selection of any Subcontractor.

3.1.11. Contractor is responsible for quality control of its own work and work performed by its subcontractors and their sub-subcontractors.

3.1.12. Coordinate the activities of all Subcontractors. If Government performs other work on the Project or at the Site with separate contractors under Government's control, Contactor agrees to reasonably cooperate and coordinate its activities with those of separate contractors in an orderly and coordinated manner without unreasonable disruption.

3.1.13. Government buildings and other facilities are not available for storage of materials, equipment, and tools except for designated staging areas. Government owned equipment is not available for use to accomplish any Work.

3.1.14. Housing for workers and campsites are not available on site.

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3.1.15. Furnish all temporary facilities and utilities needed including heat, light, power, water, telephone, sanitary facilities, job offices, material handling equipment, temporary construction aids, and storage enclosures as appropriate. Ensure sanitation meets OSHA standard 1926.51(c)(1), table D-1. Also, ensure toilets are maintained in a clean and usable manner.

3.2. PAYMENT PROCEDURES

3.2.1. Measurement: No measurement of the work will be made unless unit prices are included in the project.

3.2.2. Schedule of Values: Prepare a Schedule of Values in the format of the American Institute of Architects (AIA) form number G702/703 Application and E15 form. Submit a detailed Schedule of Values as part of the final Solicitation Bid Package.

A. Payment Request Data: In addition to data required by the Contracting Officer: (1)

Format the Schedule of Values to match the Schedule of Items and show sufficient additional detail to allow accurate calculation of monthly progress payments; and

(2) provide updated construction schedule identifying actual work complete.

3.3. PROJECT SAFETY

3.3.1. The Contractor shall always have the ultimate responsibility for safety on the project site, from issuance of the Contract until final completion and acceptance of the project by the Contracting Officer Representative. Ensure that all onsite activities, equipment, and facilities constructed by the Contractor, subcontractor, or supplier conform fully to the standards of the Department of Labor, Environmental Protection Agency (EPA), Occupational Safety and Health Administration (OSHA) 29 CFR 1926 and 1910; and DOI and FWS policies. In addition, the Contractor shall adhere to all current Federal, State and local safety requirements. In the event where any safety standard referenced herein conflicts with another, the more stringent shall govern. See Section H of the solicitation /contract.

3.3.2. Initiate and maintain, throughout the performance of this contract, an effective safety and health program that provides adequate policies, procedures, and practices to protect employees from, and allow them to recognize, job-related safety and health hazards. The program shall include provisions for the identification, evaluation, prevention and control of general work site hazards, specific job hazards, and potential hazards that may arise from foreseeable construction methods and conditions, as well as providing a competent person to conduct frequent and regular inspections. Each employee (Contractor and subcontractors) must be instructed in the recognition and avoidance of unsafe conditions and the regulations applicable to the work environment.

3.3.3. Provide barricades and warning devices as necessary to safeguard the public, workers, and government personnel. Where project work affects public roads, provide signage in accordance with the current edition of the Manual on Uniform Traffic Control Devices (MUTCD) as published by the US Department of Transportation, Federal Highway Administration.

3.4. Work Hours: Monday – Friday, 8:00 am – 4:00pm.

3.5. Protections:

3.5.1. Comply with all applicable federal, state, and local environmental laws and regulations.

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This condition applies to, but is not limited to, laws and regulations governing noise levels, air and water quality standards, erosion control, surface runoff, and cultural resources.

3.5.2. Protect adjacent vegetation, property, structures, and improvements from damage. See

Clauses of the solicitation /contract.

3.5.3. Heavy equipment operated on FWS roads and parking areas shall comply with highway-legal load limits unless explicitly approved otherwise. Prior to operations, the contractor and contracting officer will document condition of roads and parking. The contractor is responsible for repairs of damage to roads and parking caused by their own actions.

3.5.4. Coordinate with the local FWS staff to select a construction staging area. Construction equipment and operations shall be contained within the work limits and staging areas.

3.6. Closeout Procedures

3.6.1. Final Inspection: Submit a request in writing to the COR requesting the Final Inspection.

Notify the COR and Site Representative at least 3 calendar days prior to the anticipated date of completion of all work. The Site Rep will proceed with Final Inspection as promptly as practicable. The time required for such Final Inspection and for making any corrections as a result thereof shall be included in the contract performance time. The Contractor representative responsible for the work shall be present at the Final Inspection and shall submit a preliminary list of unfinished work prior to Final Inspection.

3.7. Closeout Documents

3.7.1. Operation and Maintenance Manuals: Provide O&M manuals and training on systems operations.

PART 4. PROJECT CONTACTS

4.1. Site Related, Access, Technical, and project related

Questions shall be directed to the COR.

EXISITING HVAC PLAN:

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EXISTING CONDITION PHOTOS:

EXISITING AHU

LOCATION IN

ATTIC

NEW LOCATION

IN CONDITION

SPACE

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Figure 1, Water damage on ceiling tile

Figure 2, Water damage on ceiling tile

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Figure 3, Water damage at gypsum ceiling and ceiling tile

Figure 4, Suspected mold on southeast office wall.

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Figure 5, Proposed AHU location, electrical closet

Figure 6, Water damage batt insulation

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Figure 7, Existing AHU location and ductwork, Attic space

Figure 8, Interior Humidity Level

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END OF STATEMENT OF WORK