Amend 0002 Att 06.zip

This is an amendment to a solicitation for construction services at the National Institute of Standards and Technology (NIST) Boulder Campus. The project involves the removal and replacement of an existing laboratory tabletop fume hood and associated rooftop exhaust fan in Building 2, Room 1330. The scope of work encompasses demolition and replacement of countertops, sink, base cabinetry, plumbing connections, and architectural finishes. Mechanical work includes removal of the existing fume hood, ductwork, and rooftop exhaust fan, with installation of a new walk-in fume hood, hazardous exhaust fan, exhaust stack, and duct connections. Electrical work requires removal and installation of circuits, cable tray installation, dedicated receptacles for laboratory equipment, reconnection of lightning protection systems, and bonding of the hood and exhaust system. Plumbing work includes reconnecting existing piping to a new sink and eyewash station, while fire alarm work involves installation of a supervised fume hood panic alarm system integrated with the building fire alarm panel.

The contractor must provide structural design and installation of exhaust fan stack supports, perform ASHRAE 110 performance testing of the hood and exhaust system, and coordinate all construction activities with NIST personnel. Key dates include submission of individual names for the site visit by Monday, June 15, 2026; the mandatory site visit on Wednesday, June 17, 2026 at 2:30 PM outside Building 2; questions due by Monday, June 22, 2026; and proposals due Thursday, July 23, 2026. The solicitation number is 1333ND26RNB190028, and offerors must register for the site visit per instructions on Page 111 of the solicitation.