S02 689A4-24-200 Ductwork SOW Newington.docx

Newington 2C Ductwork Corrections 689A4-24-200 Newington Campus

STATEMENT OF WORK

Project Number: 689A4-24-200

NEWINGTON 2C DUCTWORK CORRECTIONS

VA Connecticut Healthcare System (VACHS) – Newington Campus

555 Willard Avenue Newington, CT 06111

BACKGROUND INFORMATION. There is a stretch of return air ductwork in Newington that is corroded and needs to be replaced. This duct is in a crawl space off a mechanical room. The duct serves an AHU C01 that serves Building 2C. From what I could see access will probably be the most challenging part of this job. The corrosion is apparently caused by water & salt entering the crawl space from above (sidewalk entrance to building 2W). See the attached photos. The VA requires the ductwork and insulation to be replaced in kind.

I. GENERAL SCOPE OF WORK

The contractor shall provide all necessary to demolish, dispose of, install and insulate the section of identified return air ductwork accessed via room 2W- B02 on the Newington Campus, 555 Willard Avenue, Newington, CT 06111.

II. STATEMENT OF PROJECT OBJECTIVES

The Department of Veterans Affairs (VA) intends to have the contractor thoroughly survey, investigate, and document how the work will be accomplished. All work to be completed in compliance with relevant specification set forth in the VA TIL library. To access the VA documents please use the following link: http://www.cfm.va.gov/til/.

Note: It is the opinion of the writer that the easiest way to replace the duct would be to disconnect one end in the confined space and the second end in the chiller plant. Then pull out the entire section. Next fabricate the ductwork in the chiller plant and push it into the confined space.

1. Seal Sidewalk above ductwork (quote 25 ft), this area further referred to as top of tunnel.

2. The joint between 2W and the sidewalk shall be cleaned of debris, install backer rod and fill the joint with Non-Sag, Polyurethane concrete and masonry sealant. The sleeve at the post indicator valve shall be cleaned of debris, backer rod installed and fill the joint with Non-Sag, Polyurethane concrete, and masonry sealant (or approved equal).

3. Install gutter and down spout to divert water away from wall and sidewalk joint.

4. Demolish / Replace (quote 18 feet of ductwork) ductwork. Remove and replace the damaged section of the return air ductwork ~72’’ wide up to the far end of the 90-degree bend.

5. Demolish / Replace insulation (quote 18 feet of insulation to insulate) on new ductwork. After ductwork is reassembled and sealed with duct sealant on all joints, it will be properly insulated, wrapped, and labeled (comply with ASHRAE and relevant VA standards).

6. Install sheet metal cover over newly installed and insulated ductwork to divert water away from ductwork into confined space.

7. Make service openings (access hatches) to facilitate the work. For standardized quoting purposes quote Installing 4 access hatches in ductwork down stream of new ductwork.

8. Clean all downstream ductwork up to and including input blower to AHU C01 up to and including the air fan clean reheat coils.

9. Seal and insulate all access hatches.

10. All duct, HVAC work shall be performed by NADCA certified Air Systems Cleaning Specialists, with current certifications filed with designated VA representative.

III. JUSTIFICATION

This project will correct rusted ductwork, which damages air quality. It will replace in kind (but new condition) ductwork and insulation to VA standards documented in the TIL.

IV. PERIOD OF PERFORMANCE:

All work to be completed 60 days after Notice to Proceed is signed and returned to the Contracting Officer.

V. STATEMENT OF CONTRACTOR TASKS

A. Contractor shall furnish all services for a complete construction, final installation, and commissioning.

1. Necessary site surveys to identify and verify the existing ductwork and water penetration conditions.

2. Construction companies should not be able to bid on the project without conducting a site visit.

3. Necessary utility surveys to help develop a plan for disruption of utilities if necessary for construction.

4. Coordination with the VA management and personnel impacted by the project is necessary to establish, impact, containment, and phasing.

5. All work shall be done between the hours of 7:00AM to 5:00PM Saturday through Sunday, holidays excepted, or 3:30 to 11:30 pm on preapproved weekdays. Work schedule must be submitted one week in advance, via email, to designated VA representative and approved via email by said representative.

B. Contractor shall work to best practices and industry standards construction.

1. Ensure proper life safety, including (but not limited to) egress, proper fire/smoke compartmentation, fire alarm, sprinkler system, etc.

2. Comply with all VA Information and Information-System Security and Privacy requirements.

3. Include a safety plan per OSHA, AIA, and VA guidelines for all VA construction projects. Include confined space certificates for all workers and supervision entering confined spaces. Contractor shall include Infection Control Risk Assessment (ICRA) measures, and Interim Life Safety Measures (ILSM) shall be included in the safety plan. The contractor shall also be responsible for developing their own safety for all site investigations.

4. Comply with the VA mandatory requirements for utility shutdowns and fire watches.

VI. CONSTRUCTION PERIOD SERVICE REQUIREMENTS:

· Product Data: Submit data for each product.

· Cleaning agents and chemicals

· Sheet metal & ductwork

· Insulation products

· Sealants

· Tapes

· Labels

· Informational Submittals

· Duct cleaning plan

· Lock & Tagout plan for control

· Licenses and certifications of contractors

· Manufacturer’s instructions for cleaning agents.

· Safety plans

· Qualification Statements: Show membership status, project experience and certifications for:

· HVAC Cleaning Contractor

· Supervisor

· Inspector

· Hygienist

· Testing agency

· Closeout Submittals:

· Record documentation:

· Completion of cleaning work by Construction managers visual inspection and verification of cleanliness.

· Photo images, and other supporting documents.

· System areas found to be damaged or in need of repair.

2.Storage of Equipment & Materials:

The contractor shall arrange with the VA designee for allocation of required workspace and for the storage of equipment and material to be used for this project. Storage space is very limited. There are no exclusive areas within the campus that can be given to the contractor for their storage needs. Additionally, no space will be made available for the placement of a contractor trailer for this project. The Contractor should schedule delivery of materials to limit the amount of storage space and time.

3.Debris Removal:

The Contractor/Installer shall be required to remove waste materials and debris daily from the campus. All waste material and debris shall be removed off the site by the contractor and shall be disposed of in accordance with applicable State and Federal regulations.

4. Site Utilities:

The Contractor/Installer should note this scope of work does not detail all existing structures, utilities, or components that may potentially interfere with the contract work required. The contractor shall note any obstruction, utility, or condition that may hinder or interfere with the execution of this contract and the contractor shall make provisions in their contract price to resolve such interferences and other conditions that may hinder the proper completion of the work. All proposed utility relocations, reallocations, and shutdowns shall be approved by the appropriate VA personnel prior to commencing such work. The contractor shall verify all existing utility installations and take appropriate action prior to working around any potential utility installation.

In the event a shutdown, restriction, or interruption of any utility services is required, a written request must be submitted (at least 2 weeks in advance) and approved by the VA designee. All utility shutdowns must be reviewed and approved by the VA.

5. Security:

All contractor personnel shall obtain a short-term identification badge issued by the VA designee. Such badge shall be worn by the individual and prominently always displayed while on VA property. No employee of the contractor shall enter the project site without a valid identification badge issued by the VA. In order to obtain a short-term identification badge, contractor personnel shall present to the VA designee a valid (non-expired) photo identification issued by a US federal, state or local government agency.

All contractor personnel are subject to inspection of personal effects when entering or leaving the project site.

image4.emf image4.jpeg image5.jpeg image6.jpeg image7.jpeg image8.jpeg image9.jpeg image10.jpeg image1.jpeg image2.emf image3.jpeg