Attachment Statement of Work.pdf

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NIST Center for Neutron Research Cooling Tower Maintenance and Repair Services
Solicitation number
1333ND20QNB610625
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This statement of work and related federal contract opportunity outline requirements for cooling tower maintenance and repair services at the National Institute of Standards and Technology Center for Neutron Research. Over a five year base period with four option years, the selected contractor will inspect, clean, perform routine maintenance, and complete repairs on two sets of cooling towers. Key tasks include replacing aging right-angle gear drives, maintaining deicing, fire suppression, and plume abatement systems, and conducting minor repairs. The contractor must supply all equipment, materials, and labor and schedule work during scheduled reactor shutdowns. Deliverables include safety and project plans, installation documentation, and annual reports with recommendations. The estimated period of performance is five base years with an option for an additional six months. Responses were due under solicitation number 1333ND20QNB610625 to the Department of Commerce National Institute of Standards and Technology.

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Statement of Work

1. Background The NIST Center for Neutron Research (NCNR) owns and operates a heavy water-moderated nuclear test reactor and associated neutron beam research facility. The NCNR’s reactor is licensed with the Nuclear Regulatory Commission (NRC) under the name National Bureau of Standards Reactor (NBSR). The Reactor's secondary cooling water is cooled by a set of cooling towers. The cooling towers are located behind the NCNR (Building 235). The main cooling tower was built in 2002 by Balcke-Dürr. It's constructed on a concrete basin with pressure treated wood and fiberglass siding. Exterior wood surfaces consist of a stairway, railings and plywood decking. It has 3 cooling cells (#1, #2 and #3). The secondary cooling tower is a modular design. It was erected in 2011, is supported on steel pilons and is made of stainless steel. It is a BAC model 3781C tower. It has 2 cooling cells (#4 and #5).

The overall condition of the cooling towers are good. The cooling towers are in need of routine maintenance, repairs, and cleaning. In addition, the right-angle gear drives made by Amarillo in tower cells 1-4 are aged and in need of special attention. The right-angle gear drive for cell #5 was replaced in December 2019. This is to include maintenance, cleaning and repairs.

Objectives

To inspect, clean, perform routine maintenance, and complete required repairs on both sets of cooling towers. This contract also includes several subsystems that work in tandem with the main cooling tower structures. These systems include a deicing system, a fire protection system and a plume abatement system.

Cooling tower cell #4 right angle gear drive must be replaced in the first year with one of the remaining three right-angle gear drives replaced in the following years of this contract. The other right angle gear drives will be sent out by the contractor to be refurbished at the manufacturer. The contractor must procure a new right-angle gear drive for replacement of the right-angle gear drive in the worst condition in the cooling tower cells 1-3 in option year 2. The contractor will then arrange for its transport of the right-angle gear drive removed to the manufacturer, refurbishment at the manufacturer and return to the NCNR. This refurbished right-angle gear drive will then be installed in the next worse off cooling tower cell in the next option year. The removed right-angle gear drive will then be sent off for refurbishment under the direction of the contractor as outlined above and installed into the third and final cell. The last right-angle gear drive removed will be sent off for refurbishment as outlined above and returned to the NCNR to act as a spare.

Scope:

Year 1 to include:

• Inspection of all cells with written report of findings.

• Maintenance:

Right angle gear drive oil flush and drain in accordance with manufacturer specifications.

Lubricate motors of all cells in accordance with manufacturer specifications.

Plume abatement heat exchanger inspection and maintenance of cells 1-3.

Fan blade angle check and needed adjustments in accordance with manufacturer specifications.

• Cleaning of all cells to remove scale and biological buildup on fill and internal/ external of structure.

• Inspection and maintenance on deicing system

• Inspection and maintenance of fire suppression system

• Minor repairs as needed and directed by the project manager.

(Example: Replacing wooden portions that are damaged or replacing missing fasteners.)

• Replace #4 cooling tower cell right-angle gear drive with a new one. Dispose of old one.

Year 2 to include:

• Inspection of all cells with written report of findings.

• Maintenance:

Right angle gear drive oil flush and drain in accordance with manufacturer specifications.

Lubricate motors of all cells in accordance with manufacturer specifications.

Plume abatement heat exchanger inspection of cells 1-3.

Fan blade angle check and needed adjustments in accordance with manufacturer specifications.

• Cleaning of all cells to remove scale and biological buildup on fill and structure.

• Minor repairs as needed and directed by the project manager.

(Example: Replacing wooden portions that are damaged or replacing missing fasteners.)

• Replace lowest condition cooling tower cell right-angle gear drive with a new Amarillo Right angle gear drive.

• Inspection and maintenance on deicing system

• Inspection and maintenance of fire suppression system

• Send the removed Right angle gear drive to Amarillo for refurbishment.

Year 3 to include:

• Inspection of all cells with written report of findings.

• Maintenance:

Right angle gear drive oil flush and drain in accordance with manufacturer specifications.

Lubricate motors of all cells in accordance with manufacturer specifications.

Plume abatement heat exchanger inspection of cells 1-3.

Fan blade angle check and needed adjustments in accordance with manufacturer specifications.

• Cleaning of all cells to remove scale and biological buildup on fill and structure.

• Minor repairs as needed and directed by the project manager.

(Example: Replacing wooden portions that are damaged or replacing missing fasteners.)

• Replace next lowest condition cooling tower cell right-angle gear drive with previously refurbished one.

• Inspection and maintenance on deicing system

• Inspection and maintenance of fire suppression system

• Send the removed gear drive to Amarillo for refurbishment.

Year 4 to include:

• Inspection of all cells with written report of findings.

• Maintenance:

Right angle gear drive oil flush and drain in accordance with manufacturer specifications.

Lubricate motors of all cells in accordance with manufacturer specifications.

Plume abatement heat exchanger inspection of cells 1-3.

Fan blade angle check and needed adjustments in accordance with manufacturer specifications.

• Cleaning of all cells to remove scale and biological buildup on fill and structure.

• Minor repairs as needed and directed by the project manager.

(Example: Replacing wooden portions that are damaged or replacing missing fasteners.)

• Replace next lowest condition cooling tower cell right-angle gear drive with previously refurbished one.

• Inspection and maintenance on deicing system

• Inspection and maintenance of fire suppression system

• Send the replaced right angle gear drive to Amarillo for refurbishment.

Year 5 to include:

• Inspection of all cells with written report of findings.

• Maintenance items

Right angle gear drive oil flush and drain in accordance with manufacturer specifications.

Lubricate motors of all cells in accordance with manufacturer specifications.

Plume abatement heat exchanger inspection of cells 1-3.

Fan blade angle check and needed adjustments in accordance with manufacturer specifications.

• Cleaning of all cells to remove scale and biological buildup on fill and structure.

• Inspection and maintenance on deicing system

• Inspection and maintenance of fire suppression system

• Minor repairs as needed and directed by the project manager.

(Example: Replacing wooden portions that are damaged or replacing missing fasteners.)

• Replace next lowest condition cooling tower cell right-angle gear drive with previously refurbished one.

• Send the replaced right angle gear drive to Amarillo for refurbishment. This refurbished right-angle gear drive will remain at the NCNR to act as a spare.

2. Requirements

1.1. Contractor must supply all equipment, material and labor to complete this Statement of Work.

1.2. Contractor must remove and dispose of all trash and waste. Debris must be collected to maintain the cleanliness of the cooling towers.

1.3. Follow all manufacturers recommendations. Finished product may not negatively alter the efficiency of the tower.

1.4. Contractor must plan to complete work within an approximate (2) week period and coordinated with the NCNR representative to occur during a scheduled reactor shutdown.

1.5. Contractor must demonstrate that the tower is returned to fully operational condition.

1.6. Contractor must supply a general safety plan that demonstrates adherence to OSHA safety regulations. This safety plan should include elevated work surfaces, scaffolding, ladder, confined space, and crane safety as an example.

3. Deliverables:

3.1 Kick-Off Meeting. A kick-off meeting shall be had to ensure that the contractor has a full understanding of the requirements and deliverables of this SOW. Contractor shall provide a brief outline of how they plan to meet the requirements and schedule. Contractor shall schedule and attend meeting. (within 10 days of contract award)

3.2 Safety plan – Contractor will need to furnish a safety plan to encompass all aspects of the project.

This should include crane safety to support the gear box replacement.

3.3 NCNR Review Package

3.4 Work shall begin within 2 months of the contract award date.

3.5 Job package report at the end of each option year to include:

a. Make, model and serial number of all materials that were installed.

b. Drawings

c. Bills of sale and invoices

d. List of work performed

e. Recommendations for the next option year

4. Government Responsibilities

4.1 Access to NIST and building 235 cooling tower area.

4.2 Provide water access.

4.3 Lock out Tag Out (LOTO) the cooling tower cell to be worked on.

4.3.1 Provide information about the components to be used. Include product data sheet, expected life and warranty information.

4.3.2 Provide information on the parts of the cooling tower to be inspected (sump, water distribution branch lines, fill and drift eliminators, heat exchanger coil bundles, power train, interior/ exterior, etc.)

4.3.3 Provide information on the routine maintenance to be performed. This should include but not limited to (fan blade angle checks, motor lubrication, gear box maintenance, bolt tightness checks, nozzle replacements, plywood replacement, etc.)

5. Period of Performance

5.1 5 years. 1 Base contact with 4 Option years with an option for an additional 6 months.

BAC Tower Info:

a. BAC Cooling Tower #5 –

1. Model Number – 3781C-2

2. Serial Number – U110417002-01

ii. Existing right-angle gear drive –

1. Make – Amarillo

2. Model – F110

3. Serial Number – 295786

iii. Existing Fan –

1. OEM recommended by manufacture representative.

File details come from the government source that posted it. Updated .