Attachment 1 Statement of Work 1232SA25Q0483.pdf

Statement of Work (SOW)

Project: HRSG TUBE REPLACEMENT

GENERAL INFORMATION

1.0 Scope of Work: The United States Department of Agriculture, USDA, Agriculture Research Service, ARS, located in Ames, Iowa has a requirement for locating and replacing leaking tubes on the HRSG boiler. Leaking tube(s) will need to be removed, and measurements taken for replacement tubes to be manufactured and installed. The new tubes shall be made of the same material and have the same wall thickness and bend configuration.

2.0 Background: The USDA/NCAH campus is a premier facility dedicated to safeguarding animal health through advanced research, diagnostics, and disease control measures. Comprising of National Animal Disease Center NADC), National Veterinary Services Laboratories (NVSL, and the Center for Veterinary Biologics (CVB), the NCAH serves as a critical hub for addressing both endemic and foreign animal diseases.

These facilities conduct vital work in biosafety levels (BSL) 2 and 3 laboratories, involving the study of zoonotic diseases, vaccine development, and diagnostic testing.

Established to enhance the USDA’s capacity to support the livestock industry and protect public health, the NCAH is equipped with state-of-art laboratories and containment facilities. The center’s mission aligns with the USDA’s broader goals of ensuring a safe, abundant food supply, and improving animal health and welfare through scientific excellence and innovation. During yearly inspections there were 6 tubes in 3 areas that are leaking and need replacement. Another hydro test would need to be performed to verify leaking tubes and placement, also to make sure there are no other leaks in the vessel. The tubes are 2” OD SA178-A the length is to be determined after removal.

CONTRACTOR REQUIREMENTS

3.0 Technical Requirements/Tasks: A certified technician will perform all the repairs.

• The contractor will verify and LOTO all areas before entering.

• The contractor shall not enter a boiler before all safety precautions listed above have been taken. The contractor shall ensure that all free blow vents or drain valves are open. The temperature of the boiler shall be such that the inspecting personnel will not be exposed to excessive heat.

• The contractor will follow all confined space entry requirements that meet the owners program. The contractor shall be satisfied that a safe atmosphere exists before entering either the fireside or water side of a boiler. The contractor shall not be permitted to enter an area containing toxic, flammable or inert gases, vapors or dust without appropriate personal protective equipment. The oxygen content of the breath-able atmosphere shall be between 19.5% and 23.5%.

• Personal protective equipment and clothing must be worn as appropriate. This may include, among other items, protective outer clothing, gloves, eye protection, and foot protection. The contractor shall have the proper training governing the selection and use of any personal protective equipment necessary to safely perform each boiler inspection. Particular attention should be afforded respiratory protection if the testing of the atmosphere of the object reveals any of the hazards noted in the paragraph above.

• If requested by the contractor or required by regulation or applicable procedure, a responsible person (“attendant”) shall remain outside the boiler at the point of entry while the contractor is inside and shall monitor activity inside and outside and communicate with the contractor as necessary. The attendant shall have a means of summoning rescue assistance if needed and to facilitate rescue procedures for those inside the boiler without personally entering the boiler.

• Using hydro testing, determining location and number of leaking tubes.

• Assess the failure and determine the best course of action.

• Remove the failed tubes and determine the failure caused to prevent further failures. Remove refractory as needed to gain access to tubes for removal.

• Remove enough tubes to access the leaking tubes.

• Review the tube’s condition and the connection spots to check for any other signs of wear.

• Install the new boiler tube following code requirements.

• Patch and cure refractory with new to manufactures specifications.

• Complete any repair forms and reinstall the boilerplate.

• Pressure test HRSG boiler to 1.5 operating pressure.

• Assist with start-up after repairs to verify all repairs have been completed satisfactorily and return the unit to operating condition.

4.0 Government Furnished: The Government shall furnish water for cleaning and preparation work, electrical outlets rated at 120v, 208 3 phase and compressed air at 95- 100psi. The government will provide escorts and assistance for access to building 154 and proper precautionary measures.

Quality Control Requirements

A. COR shall inspect the completed work for approval with the contractor prior to considering the work to be complete.

Temporary Facilities

A. Utilities: 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.

B. Smoking is only allowed in the outdoor smoking building located at the northwest corner of Building 20. The contractor will need to check in and out at the South Guard Desk of Building 20 to use the smoking location, no propping of doors is allowed.

5.0 Deliverables / Schedule:

Key Deliverables Item No.

Deliverable

Objective

1. Hydro testing Determine location and number of leaks 2 Assess the failure of the tubes Determine best course of action

3. Remove areas of refractory and tubes

Removal to gain access to failed tubes and determine causes of failure

4. Review condition To check for other signs of wear

5. Replace tubes Relace failed tubes with new

6. Connect tubes Connect to new boiler tubes following code requirements

7. Patch refractory Patch and cure refractory that was removed to reach faulty tubes.

8. Reinstall boilerplate Reinstall the boilerplate and return the vessel to operational condition.

9. Hydro test Test to 1.5 of operating pressure of

10. Return vessel to operating conditions Start HRSG with assistance from government employees, to verify proper repairs have been made.

6.0 Travel: N/A

7.0 Contractor’s Key Personnel: N/A

8.0 Security Requirements:

Work Restrictions & Conditions

A. Site Security Access

1. Access to the site is controlled by a security fence and visitor/contractor check-in/check-out system. All contractor/subcontractor employees shall sign-in and out at the 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. A current government-issued identification with a picture ID is required for entry.

2. The Contractor shall use only the service roads and access routes approved by the Contracting Officer’s Representative, Michael Kuennen or as designated.

3. Work shall be confined to Building 20 and Building 9 Elevator Mechanical Rooms and Elevator Shafts. 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 are not limited to, disease control and health requirements.

4. Additional security requirements may be imposed when the Federal Government raises the Homeland Security Alert Level. Additional directions will be provided if the situation occurs.

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

6. No “tailgating” of USDA employees through secure entrances is allowed.

7. No animals/pets are allowed to be brought on the site regardless of whether they are left in a vehicle in the parking lot or not.

B. Work Hours: Regular work hours for the site are 7:00am to 6:00pm, Monday through Friday, excluding Federal holidays.

C. Work Outside of Regular Work Hours: Is not authorized unless it is an Emergency Situation and Contractor has been requested to Service an Elevator by the proper Federal Authority.

9.0 Data Rights: N/A

10.0 Section 508 – Electronic and Information Technology Standards: N/A

11.0 POC: Joe Kadolph, joseph.kadolph@usda.gov office 515-601-6632

12.0 COR: Jeff Waterbury, jeff.waterbury@usda.gov office 515-337-7451

Attachment:

mailto:joseph.kadolph@usda.gov mailto:jeff.waterbury@usda.gov