Statement of Work.docx

US Department of Agriculture (USDA)

“Statement of Work”

Building 174 LP To Natural Gas United States Department of Agriculture - National Centers for Animal Health 1920 Dayton Avenue Ames, Iowa 50010

Contents

Project Building 174 – LP To Natural Gas

General Information

1.0 Background

1.

1.1. Building 174 is an approximately 7,624 gross square foot Long Term Cattle Building, constructed to meet United States Department of Agriculture (USDA) ARS 242.01M and is used by the Agriculture Research Service (ARS). Building was constructed in 2005.

1.2. The existing Rooftop Unit (RTU) system serves the building entry, locker/changing room areas, and common/lab space. Cooling is provided by direct expansion method, and the heating is provided by modulating fire to heat exchanger LP. Both systems are housed within one RTU. The unit is mounted to concrete slab on grade. The animal holding area has no mechanical cooling. Ventilation is provided by sidewall windows in the area with continuous ridge vents in the roof. Heating is provided by LP radiant tube heating tubes mounted high in the ceiling.

1.3. Constant use, equipment/facility age, and environmental conditions have contributed to the deterioration of the equipment serving the building and the cost of LP and service contract justify the need to convert fuel to natural gas.

2.0 Scope of Work

2.

2.1. This acquisition requires labor, material, and equipment needed to complete the following:

2.1.1. Remove and replace the existing Rooftop Unit (RTU) concrete equipment pad.

2.1.2. Remove existing 4-Ton pad mounted RTU unit to include: external metal ductwork from the RTU to the building, electrical conduit, wires, circuit breaker, and natural gas hookup.

2.1.3. Furnish and install new RTU on a 24” high metal curb. See page 9 “Equipment Schedules” in drawings.

2.1.4. Furnish and install (4) Gas fired radiant tube heaters (RTH 1-4) including pressure regulators, shutoff valves, hangers, pipe unions, and intake/exhaust metal ductwork at each heater. Pipe and fittings Schedule-40 steel. Reuse existing thermostats and wires.

2.1.5. RTH-5 and its thermostat, conduits, and wires shall be removed. Remove existing intake/vent for RTH-5, fill hole with submitted and approved fire caulk and install sheet metal patch and seal holes in the interior and exterior of wall and roof. Sheet metal patches shall be coated with red “rust” colored primer. Remove wires back to main breaker panel and conduit back to nearest junction box and plug the hole.

2.1.6. Furnish and install (1) hanging gas-fired unit heater including conduit, wiring, gas piping and venting pipes.

2.1.7. Furnish and install Four (4) sight proof air-transfer door grills into existing doors. Locations shown on page 6 of the drawings. Refer to Equipment Schedules page 9 of the drawings for information.

2.1.8. Furnish and install one (1) return-air grill through the wall as shown in location on page 6 of the drawings. Refer to Equipment Schedules page 9 of the drawings for information. For placement of new return air grill see detail on page 6 of the drawings.

2.1.9. Ductwork Insulation: Ductwork insulation needs to meet most recent Iowa Energy code for thickness and R value.

Jacketing: Factory-laminated aluminum/polymer weather-resistant cladding (e.g., Alumaguard, ArmaTuff, VentureClad) compliant with ASTM C1775; zero-perm, UV/abrasion-resistant.

Fire Rating: ≤ 75 flame spread / 150 smoke-developed per ASTM E84.

Moisture Control: Vapor permeance ≤ 0.02 perms; all seams and overlaps sealed with compatible tape/adhesive.

Corrosion: Facing or facing adhesive meets ASTM C871 corrosion limits for stainless and carbon steel.

Installation: Applied over insulation per SMACNA standards; supports installed to prevent insulation compression; jacket sealed at transitions with factory tape.

2.1.10. Remove existing LP fuel line and regulators from the LP(Liquid Propane) storage tanks to building entry point.

Note: LP tanks will be removed by USDA.

2.1.11. Uninstall bollards from LP tanks area and remove from site.

2.1.12. Furnish and install approximately 67 feet of 2-inch High-Density Polyethylene (HDPE) gas piping and two 2-inch cast iron plug valves (e.g. A.Y. McDonald 10687B) connecting to existing 2-inch gas main pipe as shown on page 2 of the drawings. Furnish and install two 51/4-inch Clean in Place valve boxes with adjustable top sections. (e.g. Bingham & Taylor P5B with PVC extension and cap). Furnish and install 3/8-inch pea gravel at a depth of 6-inches as a base underneath the valve box for stability. New piping shall be buried , trenched or bored, at a minimum of 36-inches. 12-gauge tracer wire shall be installed with the piping. All joints shall be connected using HDPE Electrofusion type couplings. Furnish and install 2-inch anode-less riser, regulator, shutoff valves, flow meter & gas meter set with volume pulser. The Contractor shall provide manufacturer's standard anode-less risers. Anod-less risers shall be of swaged gas-tight construction with O-ring seals, metal insert, and protective sleeve with 7 to 12 mil thick epoxy coating. Provide support for the riser.

2.1.12.1. Install new natural gas regulator before the new meter (e.g. Maxitrol 325-9L and at each heating device (e.g. Maxitrol 325-5L). Regulators shall be adjusted to meet the manufacturer’s requirements for each heater location.

2.1.12.2. Natural gas regulators at the riser locations shall provide over pressure protection by use of a full internal relief to prevent downstream pressure from exceeding 5 psig in the event of failure.

2.1.12.3. Gas flow meter (e.g. American Meter Model AL-1000) shall be diaphragm type (gas positive displacement meter) designed specifically for natural gas supply metering, and rated for the pressure, temperature, and flow rates of the installation. Meter must have an accuracy of plus or minus 1 percent of actual flow rate. The meter index must include a direct reading mechanical totalizing register and electrical impulse dry contact output for remote monitoring. The electrical impulse dry contact output must not require field adjustment or calibration.

2.1.13. Furnish and install Johnson Controls CGM BACnet controller for gas meter flow totalization monitoring. This includes conduit, wires/cabling, programming of controller, operational/functional tests and mapping to Johnson Controls Metasys building automation system.

2.1.14. Johnson Controls shall submit a schedule of available BACnet points from the RTU to Metasys for review and approval. COR to determine points for mapping to Metasys including information for trending, alarming, scheduling, etc. Points shall be brought into Metasys, assigned into a User View, and have programming trending, alarming, and scheduling.

2.1.15. Install new Johnson Controls space temperature/humidity network sensor (e.g. NS-BTB7003-0).

2.1.16. Install and terminate a(1) Category 6 (CAT 6) 23AWG cable from the RTU control panel section to the existing Johnson Controls Utility Monitoring Panel inside the building.

2.1.17. All installations shall comply with the manufacturer’s installation instructions, as well as all applicable rules, regulations, and trade standards, unless otherwise noted in this document or the associated drawings. The contractor shall perform leak testing on all new and existing piping, and any deficiencies shall be repaired and retested.

2.2. Work in the north section of the building is the animal holding area. Working in this space requires the contractor to wear a Tyvek Suit with rubber boots or suitable USDA provided work attire with a mandatory shower out. The suits, boots, and work attire shall be provided by the USDA. Tools and equipment used in the animal holding area shall remain in the area until the work is completed. Upon completion of work, USDA will decontaminate the tools and equipment before they can be removed from the area.

2.3. All uninstalled equipment including heaters, wiring, conduits, metal ductwork, fittings, and associated hardware from the animal holding area shall be placed in a location in the work area as determined by the COR. USDA shall be responsible for decontaminating and removal of these items. All uninstalled equipment from project areas other than the animal holding area shall be removed from the USDA site by the contractor.

2.4. Contractor is responsible for locating underground obstructions prior to any earthwork.

2.5. The contractor shall perform Hydro-vac excavation to uncover underground piping and valve assemblies to avoid disturbance to adjacent electrical service and existing main gas piping and valves.

Contractor Requirements

3.0 Technical Requirements / Tasks

3.

3.1. The contractor shall complete work according to the Statement of Work (SoW) and drawings and specifications included in the solicitation.

3.2. The Contractor will develop a construction proposal which itemizes the level of effort identified in this SOW and per the bid construction documents. The proposal must be “broken out” for each task item and outline all expenses associated with the project, including labor, materials, equipment, and other potential costs.

3.3. Tasks that are unclear in this SOW must be confirmed with the Contracting Officer (CO) prior to incurring costs. If clarification is required for items identified in this SOW and per the final construction drawings and specifications, it should be brought to the attention of the CO, Contracting Officer’s Representative (COR), and Engineering Project Manager (EPM).

3.4. All work must comply with all applicable federal, state & local building/construction codes.

3.5. The Contractor must make all necessary provisions to keep the operational part of the Facility safe and cooperate to keep noise, dirt, and other interferences to a minimum. To accomplish this, the Contractor must submit a Construction Plan for review and approval to allow for progression of work with limited impact on the animals and employees. The Contractor must repair all damages caused by construction operations.

3.6. All work must comply with all applicable federal, state & local building/construction codes.

3.7. The contractor must provide a weekly status/progress report to the COR.

3.8. The Contractor must provide product data submittals including manufacturing specifications. The Contractor must also submit a Construction Phasing Plan for USDA review and approval along with all other required submittals identified above in this SOW and per the construction drawings and specifications.

3.9. Pursuant to FAR 52.236-7 Permits and Responsibilities, the Contractor shall obtain all required permits, licenses, and authorizations to perform work under this contract and comply with all the applicable Federal, State, and local laws and regulations.

3.10. The Contractor shall manage the total work effort associated with the services required to meet the performance objectives and standards. Such management includes but is not limited to planning, scheduling, cost accounting, report preparation, establishing and maintaining records, and quality control. The Contractor shall provide a staff with the necessary management expertise to assure performance objectives and standards are met. The Contracting Officer may at any time require samples, Material Safety Data Sheets (MSDS) or manufacturer’s data sheets of materials used in this contract.

4.0 Government Furnished

4.

4.1. Work in the north section of the building is the animal holding area. Working in this space requires the contractor to wear a Tyvek Suit. See SOW Section 2.2.

4.2. Existing drawings may be available upon request made to the COR. Drawings and documentation provided by the USDA are for “reference only” and items are approximate and may not reflect exact details of devices, equipment, locations, and installations. The contractor is responsible for verifying installations and conditions. Devices are shown diagrammatically only. System layout does not necessarily show maximum number of system components and should not be used for obtaining quantities for linear runs of conduits and wires. The Contractor shall provide all conduits and wire wherever needed to complete installation of specific equipment required and provided by the Contractor.

4.3. Documents included: Statement of Work, construction drawings and specifications.

4.4. Documents available: site maps, submittal form, request for information (RFI) form, site entry acceptable identifications document, security policy, inclement weather /safety document, and any other requested and approved forms or documents needed for the project.

5.0 Deliverables / Schedule

5.

5.1. The contractor shall submit information listed in the following Key Deliverables Table.

Key Deliverables Table

6.0 Regulatory Requirements

6.

6.1. The equipment materials, installation, workmanship, and operation shall conform to the most stringent applicable requirements of the most recent editions of the associated publications, in the below section and in the attached specifications unless otherwise noted:

(a) National Fire Protection Association (NFPA)

(b) NFPA 101 – Safety to Life from Fire in Buildings and Structures.

(c) NFPA 1 – Uniform Fire Code

(d) NFPA 5000 – Building Construction and Safety Code

(e) SMACNA 1966 – Sheet Metal and Air Conditioning Contractor’s National Association

(f) NFPA 70 – National Electric Code

(g) Underwriters Laboratories, Inc. (UL)

(h) Appropriate UL Standards

(i) State and Local Building Codes as adopted by the Authority Having Jurisdiction (AHJ).

(j) The Uniform Federal Accessibility Standards (UFAS)

(k) Occupational Safety and Health Administration (OSHA)

(l) Biosafety in Microbiological and Biomedical Laboratories (BMBL)

(m) National Institute for Health (NIH)

(n) ARS Policies and Procedures (P&P) 242.1

(o) Architectural Barriers Act (ABA)

(p) Equipment Manufacturer Printed Instructions

6.2. Shown or Indicated:

The information and data shown or indicated in the Contract Documents with respect to existing Underground Facilities at or contiguous to the Site is based on information and data furnished to Owner by the Owners of such underground facilities, including Owner, or by others. Unless it is otherwise expressly provided in the Supplementary Conditions:

6.2.1. Owner shall not be responsible for the accuracy or completeness of any such information or data provided by others; and the cost of all the following will be included in the Contract Price, and Contractor shall have full responsibility for:

6.2.1.1. Reviewing and checking all such information and data.

6.2.1.2. Locating all Underground Facilities shown or indicated in the Contract Documents.

6.2.1.3. Coordination of the Work with the Owners of such Underground Facilities, including Owner, during construction.

6.2.1.4. The safety and protection of all such underground facilities and repairing any damage thereto resulting from the Work.

6.3. Not Shown or Indicated:

If an Underground Facility is uncovered or revealed at or contiguous to the Site which was not shown or indicated, or not shown or indicated with reasonable accuracy in the Contract Documents, Contractor shall, promptly after becoming aware thereof and before further disturbing conditions affected thereby or performing any Work in connection therewith (except in an emergency), identify the owner of such Underground Facility and give written notice to that owner and to the COR. COR will promptly review the Underground Facility and determine the extent, if any, to which a change is required in the Contract Documents to reflect and document the consequences of the existence or location of the Underground Facility. During such time, Contractor shall be responsible for the safety and protection of such Underground Facility. If Contractor concludes that a change in the Contract Documents is required, a Work Change Directive or a Change Order will be issued to the Contracting Officer to reflect and document such consequences. An equitable adjustment shall be made in the Contract Price or Contract Times, or both, to the extent that they are attributable to the existence or location of any Underground Facility that was not shown or indicated or not shown or indicated with reasonable accuracy in the Contract Documents and that Contractor did not know of and could not reasonably have been expected to be aware of or to have anticipated. If Owner and Contractor are unable to agree on entitlement to or on the amount or extent, if any, of any such adjustment in Contract Price or Contract Times, Owner or Contractor may make a Claim.

6.4. Safety Hot Work Plan:

The Contractor/subcontractor shall have an approved written plan in place to manage the safety and fire hazards associated with hot work. The plan shall include fire watch and all other requirements in accordance with OSHA. The Contractor/subcontractor shall maintain written records of hot work until final acceptance of the project and shall provide copies to the COR at any time requested. USDA shall provide “Hot Work Permit” forms for use. Completed forms shall be given to COR daily.

7.0 Contractor’s Key Personnel

7.

7.1. The Contractor shall confirm to the Contracting Officer the List of Key Personnel, and their qualifications are provided as part of the proposal. The contractor will provide any additional information requested by the Contracting Officer to certify their qualifications.

7.2. The Contractor shall provide experienced, qualified, and capable personnel to perform the work in this contract. Personnel shall be fully knowledgeable of all safety and environmental requirements associated with the work they perform. Competent personnel shall be provided as required.

7.3. OSHA training requirements shall be strictly enforced prior to the commencement of work. The job superintendent must be an OSHA certified “competent person” with 30 hours of training and all other employees working on the project must have a minimum of 10 hours of OSHA training.

7.4. The job superintendent/OSHA certified competent person needs to always be on site when work is ongoing.

7.5. Contractor employees and Subcontractor employees shall conduct themselves in a proper, efficient, courteous and businesslike manner.

7.6. The Contractor shall ensure that all employees present a professional appearance that is appropriate for their position. The Contracting Officer or their representatives reserve the right to determine the acceptability of any clothing worn. All Contractor/Subcontractor employees working under this contract shall be identified by a distinctive nameplate, emblem, or patch attached in a prominent place on an outer garment. Employee identification shall not be substituted for required passes or badges.

7.7. The Contractor shall remove from the site any individual whose continued employment is deemed by the Contracting Officer or their representative to be contrary to the public interest or inconsistent with the best interests of USDA.

8.0 Site / Security Requirements

8.

8.1. Access to the construction site is controlled by a security fence and visitor/contractor check-in/check-out system. A current government-issued identification with a picture ID is required for entry (REAL ID). All contractor/subcontractor employees shall sign-in and out at the main site entrance gate and always wear a contractor/visitor identification badge while on the site. The ID badges will be turned in at the end of the workday.

8.2. Access to the site shall be arranged by the COR according to the schedule submitted by the contractor and approved by the COR. The contractor shall coordinate and schedule his/her work under this contract to cause the least interference to USDA daily operations and employee traffic.

8.3. Construction vehicles will be allowed access to the contracted buildings; contractor employees’ personal vehicles shall be parked in the facility parking areas designated by the COR.

8.4. The Contractor shall use only the service roads and access routes approved by the Contracting Officer’s Representative.

8.5. Unless accompanied by a NCAH/USDA employee, the Contractor, subcontractors, and their employees shall not enter buildings or facilities not specifically part of this project. Reasons included, but not limited to, disease control and health requirements.

8.6. Additional security requirements may be imposed when the Federal Government raises the Homeland Security Alert Level. Additional directions will be provided by the Contracting Officer’s Representative if the situation occurs.

8.7. Failure to comply with access requirements shall be adequate grounds for removal of the contractor/ subcontractor employees from the site and barring further site access to individuals.

8.8. Coordinate use of premises under direction of the COR. Contractors shall confine construction equipment, storage of materials and equipment and operations of workers to areas permitted by law, ordinances, permits, or requirements of Contract Documents, and shall not unreasonably encumber premises with construction equipment or other material or equipment.

8.9. Obtain and pay for use of additional storage or work areas needed to complete the project.

8.10. USDA will occupy parts of the facility during entire period of construction for conduct of its normal operations.

8.11. The Contractor shall adhere to ALL Site, ARS, APHIS and USDA security policies and procedures including Code of Federal Regulations Requirements, Standard Operating Procedures, Security Directives, Security Procedures, General Orders, Post Orders and any applicable Government Policies and Procedures.

9.0 Project Timeline / Hours of Operation

9.

9.1. Normal Work hours:

Work hours for the site are 7:00AM to 4:00PM, Monday through Friday, excluding government holidays. Requests for exceptions to this schedule shall be made in writing forty-eight (48) hours in advance and approved by the CO.

9.2. Work Outside Normal Work Hours:

Work scheduled outside regular work hours including late hours, Saturdays, Sundays, and Government holidays requires Contracting Officer’s Representative (COR) approval in advance. Make application to the COR at least 5 calendar days prior to such work to allow arrangements to be made by the Government for access to the work area and inspection & monitoring arrangements. Requests shall include the exact dates, hours, location, and purpose of the exception. If approved, the COR will coordinate access with the site security office.

9.3. Recognized Holiday:

The contractor is not required to provide service on federal holidays, except in emergency situations. 2026 Federal holidays are as follows:

· New Year's Day: Thursday, January 1

· Martin Luther King, Jr. Day: Monday, January 19

· Presidents' Day (Washington's Birthday): Monday, February 16

· Memorial Day: Monday, May 25

· Juneteenth: Friday, June 19

· Independence Day (Observed): Friday, July 3

· Labor Day: Monday, September 7

· Columbus Day: Monday, October 12

· Veterans Day: Wednesday, November 11

· Thanksgiving Day: Thursday, November 26

· Christmas Day: Friday, December 25

10.0 Special Provisions

10.

10.1. Finished surfaces of existing facilities that are affected, marred, scratched, or damaged by the contractor shall be refinished to match original condition.

a. Patching material shall be of the same type, style, and thickness, and shall be finished to match existing adjacent surface construction in color and texture.

b. Patching material, paint color, paint material and paint application methods shall be approved in advance by the COR.

10.2. No building structural members shall be cut or altered without prior approval of the COR.

10.3. Any damage resulting from contractor's operation shall be brought to the attention of the COR immediately.

10.4. The contractor shall take all necessary and reasonable measures to keep the work site clean of trash and debris. Work areas shall be cleaned immediately as work in that area is completed, and before moving to a new work site. Place all trash and debris in OSHA approved containers, remove, and dispose of trash off site daily.

10.5. The contractor shall move all materials and equipment, including ladders and scaffolding from the site at the completion of each day's operation unless otherwise approved by the COR.

10.6. The contractor shall provide proper safety equipment to workmen and always ensure a safe environment for employees and the public. The contractor shall work to ensure free, unobstructed, and safe access to and about the work area.

11.0 Temporary Facilities

11.

11.1. The existing USDA utilities at the site may be used by the Contractor for completion of the contract work at no cost to the Contractor. The Contractor shall be responsible for making and removing any utility connections.

11.2. The Contractor shall equip all his foremen and work leaders with cell phones as necessary to coordinate the work effort. The Government will not provide any phone service for the project.

11.3. The existing USDA toilet facilities may be used by the Contractor for completion of the contract work at no cost to the Contractor. Locations of the facilities determined by the COR.

11.4. USDA dumpsters and Roll-offs on site are not to be used by the contractor. The contractor shall furnish and maintain waste and recyclable receptacles for the duration of the project. Location of the receptacles shall be coordinated with the COR.

12.0 Lockout /Tagout

12.

12.1. The Contractor and/or subcontractor employees who will be working on the job will apply a lockout/tagout (LOTO) process to control dangerous energy sources.

12.2. The Contractor/subcontractor shall have a LOTO program established and use Contractor LOTO locks, tags, and procedures.

12.3. The Contractor/subcontractor shall submit their LOTO program with the COR to coordinate LOTO programs before implementing LOTO.

13.0 Closeout Submittals / Warranty Documentation / Record Drawings 13.

13.1. A warranty shall be issued in accordance with FAR 52.246.21 (Warranty of Construction). A standard one-year warranty shall be issued for all work unless otherwise noted in the specifications.

13.2. Manufacturer’s documentation for extended warranty. Include all required documentation that will meet the manufacturer’s requirements for executing said warranty.

13.3. Provide a warranty binder containing one (1) signed & dated copy of all warranties of installed materials, devices, components, installed on the project in conformance to the construction drawings and specifications. An electronic (scanned) copy of the Warranty Binder in a PDF file shall be submitted with the final close-out documentation.

13.4. O&M data submittals for materials, devices, components installed per the construction drawings and specifications shall include but are not limited to:

a. Make, model, and serial numbers. (Manufacturer’s Build Number acceptable if sequential or unique to the individual piece of equipment.)

b. Date of Manufacture

c. Date of Installation

13.5. Items listed in the drawings and specifications not included in this SoW.

13.6. Final As-Built drawings in PDF format shall be provided to the COR and CO.

13.7. Material Submittals for this project are:

13.7.1. Anodeless service riser

13.7.2. Trace Wire

13.7.3. Gas hanging heater (replaces RTH-5)

13.7.4. HDPE gas pipe including fittings

13.7.5. Gas shutoff valves (for gas meter)

13.7.6. Plug valves and pipe for main pipe connections

13.7.7. Pipe Sealant

13.7.8. Valve Boxes

13.7.9. Diaphragm gas meter

13.7.10. Pulse meter reader

13.7.11. Pressure regulators

13.7.12. Schedule-40 steel pipe fittings

13.7.13. Fire-stop caulk and sealant

13.7.14. Radiant tube heaters including intake/vent pipes, steel pipe & fittings, gas cocks/shutoff valves

13.7.15. Construction safety plan

13.7.16. Concrete mix design

13.7.17. Steel reinforcing bar (rebar)

13.7.18. 4-Ton Rooftop Unit with natural gas heat

13.7.19. 24-inch-tall metal equipment curb

13.7.20. Exterior Electrical Disconnect

13.7.21. Interior Electrical Beaker for Rooftop Unit

13.7.22. Sheet metal duct

13.7.23. Ductwork Insulation

13.7.24. Duct sealant

13.7.25. Duct fasteners/connectors/hardware

13.7.26. Duct supports

13.7.27. Door mounted return transfer grills

13.7.28. Wall mounted return grill

Attachments:

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