Concert Chiller Pads

Form / Attachment / Pricing Sheet

This document is a mechanical plan for the installation of a large furnace and chiller in Room 101 of Building A69 at the U.S. Naval Research Laboratory. It provides a visual representation of the proposed layout and installation details.

• Mechanical Plan Layout: Depicts the placement of chillers, piping (chilled water supply and return), thermometers, pressure gauges, boiler drains, buffer tank, expansion tank, and bypass loops.
• General Notes: Outlines important considerations such as verifying existing conditions, labeling piping, and general installation practices.
• Special Notes: Provides specific details regarding chiller installation, vibration hose usage, pipe support methods, and the location of air bleeders.
• Labeling: Indicates specific points for connections, elbows, manifolds, and equipment interfaces.

This plan is crucial for bidders to understand the physical scope and technical requirements for installing HVAC equipment. It details the exact placement of components, routing of lines, and specific installation methods, which will directly impact labor, materials, and overall project cost. Bidders must review this plan to accurately estimate their proposal and ensure compliance with the specified installation standards.

Form / Attachment / Pricing Sheet

This document provides the "Chiller Support Concrete Pad Plan" and "Section" details for a construction opportunity. It outlines the specifications for a concrete pad intended to support a chiller unit.

• Plan View: Shows a 11'-0" x 5'-0" concrete pad with dimensions and notes regarding coordination with mechanical drawings (M-101) and site-determined elevation.
• Section View: Details the construction of the pad, including a minimum 2" gravel base, 6" concrete thickness, and the use of W2.0x2.0 welded wire fabric (WWF) centered within the slab. It also indicates that the top of grading varies.
• Notes: Specifies concrete strength (4000 PSI normal weight with 6% air entrainment for exterior concrete) and compliance of steel welded wire fabric with ASTM A185.

This drawing is crucial for bidders to understand the specific requirements for constructing the concrete support pad for the chiller. It provides critical dimensions, material specifications (concrete strength, reinforcement), and placement details that will impact labor, materials, and cost estimations for the project.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Statement of Work details the requirements for constructing new concrete pads for chillers at the Naval Research Laboratory (NRL) site, specifically at Building A69.

• Construct one large concrete pad on the north side of Building A69 and one small concrete pad on the south side of Building A69, per attached structural drawings (S-101, S-102) and mechanical drawings for exact locations.

• Coordinate a Kick-Off Meeting within 2 weeks of contract award.

• Provide a project schedule within 3 weeks of contract award.

• Submit shop drawings for Steel Rebar, Concrete Mixed Design, and Miscellaneous accessories (allow 2 weeks for Government review).

• Handle Controlled Unclassified Information (CUI) as per regulations if applicable.

• Provide a detailed cost proposal with any exclusions clearly noted.

• All work must comply with the latest versions of specified industry standards (UFC, UFGS, ICEA, UL, NFPA, ANSI, NEMA, IESNA, NEIS, NEC, ASHRAE, ASTM, EM 385-1-1, OSHA 29 CFR 1926, etc.).

• Accident Prevention Plan (APP) must comply with Army Corp of Engineers EM-385 Latest Revision.

• Crane operations require a crane lift plan for review and approval.

• Contractor is responsible for site cleanliness, waste management (reuse/recycling encouraged), and disposal of all debris off NRL property.

• Hazardous waste management and disposal must comply with specific regulations and reporting requirements.

• Submit O&M Data and Closeout Submittals per UFGS standards.

• Final inspection will occur, with a 30-day window for corrections if deficiencies are noted.

• Work is to be performed at the NRL Site, Building A69.

• Contractor must coordinate work hours and base access procedures.

• Contractor badges may take 2-3 weeks to process.

• A site visit is required before submitting a bid.

• Contractor must present identification for facility access and will not be allowed in the work area without prior approval.

• Care must be taken to prevent damage to existing facilities and equipment.

• Contractor must test for Asbestos/Lead Containing Material prior to starting work, if applicable.

• Emergency Number: 202-433-3333 (DO NOT CALL 911).

• Contractor is responsible for acquiring all required local/state permits.

• Laydown areas and traffic pattern changes must be coordinated and approved.

• Contractor must provide alternate means of egress if construction affects escape routes.

• Notify Contracting Officer and NRL EIC in writing of unexpected field conditions.

• Provide personnel training information from manufacturers.

• Only the Contracting Officer can issue a stop of work order.

• Warranty information must be detailed as per the SOW requirements.

• Structural Drawings: S-101 & S-102

• Mechanical Drawings: M-101 to M-104 and M-101A

Form / Attachment / Pricing Sheet

This document provides the "Chiller Support Concrete Pad Framing Plan" and "Concrete Pad Details" for the U.S. Naval Research Laboratory (NRL). It outlines the specifications and details required for the construction of a concrete pad intended to support a chiller.

• Framing Plan: Details the dimensions of the concrete pad (11'-0" x 32'-0"), including notes on coordination with mechanical drawings, concrete strength (4000 PSI), and the use of welded wire fabric (WWF) conforming to ASTM A185.
• Section View: Illustrates a cross-section of the pad, showing the concrete slab, welded wire fabric, and surrounding gravel base.
• Control Joint Detail: Provides a detail for concrete slab control joints, including instructions for sealant application after curing.
• Notes: Includes important information such as coordinating with mechanical drawings, site-determined elevation, concrete strength requirements, and the designation of control joints.

This document is crucial for bidders to understand the specific structural requirements for the concrete pad. It provides the necessary dimensions, material specifications (concrete strength, rebar), and construction details (control joints) that must be incorporated into their proposals and executed during construction. Bidders should pay close attention to the notes and details to ensure compliance with NRL's specifications.

Solicitation / RFP / RFQ

This document is a Request for Job Site Visit related to an upcoming RFQ/Solicitation. Attendance at this site visit is mandatory for contractors before quotations will be accepted.

• Contractors are required to visit the job site.

• Proper identification (valid Driver's License sufficient) is required for access.

• Report to Bldg. 72 for a pass to access NRL.

• Failure to attend the scheduled job site visit may result in the vendor being considered 'Non-Responsive'.

• At the end of the visit, vendors will be informed of the quotation submission deadline.

• Contact with the End-User outside of the job site visit is strictly prohibited and may result in the bid being considered 'tainted' and cancelled.

• Questions after the site visit must be directed to the Contracting Officer via email.

• For the site visit, HARD HATS, GOGGLES, AND GLOVES WILL BE PROVIDED BY NRL. Attendees must bring their own FLASHLIGHTS for inspection purposes.

• Not specified in this document.

• Quotations are due 4/22/2026 at 4:00 PM.

• Questions must be submitted to the Contracting Officer no later than 04/20/2026 at 4:00 p.m. Eastern Standard Time.

• Vendors must notify the Contracting Officer of their intent to attend the site visit by 04/13/2024, 12 p.m.

• Not specified in this document.

• The job site visit is scheduled for 04/14/2026 from 1:00 PM to 3:00 PM at the Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375-5329.

• The POC for the site visit is Andrea Graves at 202-875-9251.

• Any changes to the description, specifications, or drawings after the job site visit will be issued to all vendors.

• Directions to the Naval Research Laboratory can be found on Google Maps.