Performance Work Statement ARHO Bunker HVAC Revised 9 25 26 0002

PERFORMANCE WORK STATEMENT (PWS)

Arlington House Bunker – HVAC System Repairs and UpgradesLocation: Arlington House / The Robert E. Lee Memorial 321 Sherman Drive Fort Myer VA 22211 8/24/2026
Revised 9/25/2026
Arlington House, The Robert E. Lee Memorial, sits at the heart of Arlington National Cemetery and is managed by the National Park Service (NPS). Constructed between 1802 and 1818 as the home of George Washington Parke Custis and later associated with Robert E. Lee, the estate embodies complex layers of American history, from the early republic and plantation life to Civil War conflict and contemporary preservation efforts.

Prepared by: Daryl Leftwood
National Park Services (NPS)

1.0DESCRIPTION OF SERVICES

The National Park Service requires the repair, upgrade, and commissioning of the HVAC systems serving the Arlington House Bunker at Arlington National Cemetery. These services include replacement of variable frequency drives (VFDs), chilled water piping and valve repairs, refrigerant leak testing and repairs, circulating pump replacement, restoration of the water treatment system, and upgrades to the Metasys controls platform. The work also requires full system commissioning and the delivery of all associated documentation.

The Contractor shall provide all management, labor, materials, supervision, tools, equipment, testing, controls programming, commissioning, and disposal services necessary to restore the HVAC system to full operational readiness. All required services shall be completed no later than December 30, 2026 within 122 calendar days after award. The period of performance shall be adjusted at the time of award to reflect 122 calendar days after award.

Required tasks include:

Replacement of failed VFDs
Chilled water piping and valve repairs
R410A refrigerant leak testing and repair
Circulating pump replacement
Water treatment system restoration
Metasys controls update and validation
System startup and commissioning, including airflow validation, safety controls testing, and water treatment functionality checks Environmentally compliant disposal of all removed materials Delivery of an assessment report, commissioning report, controls documentation, and asbuilt drawings

DEFINITIONS

Contracting Officer (CO): The Contracting Officer is the Government official with the legal authority to enter into, administer, or terminate contracts and to make related determinations on behalf of the Government. Only the CO may bind the Government contractually, including authorizing repairs and replacements (R&R), issuing contract modifications, and negotiating contract terms