43--TSC IRA171 8560 LOW AMB PRESS CHAMB FAC

The U.S. Department of the Interior, Upper Colorado Regional Office, is seeking industry input through a Sources Sought notice for the replacement of the pumping unit in the Low Ambient Pressure Chamber at the Bureau of Reclamation’s Hydraulics Laboratory in Denver, Colorado. The requirement calls for a horizontal-shaft, split-case, single-stage, double-suction centrifugal pump with a 100-horsepower motor and a corresponding Variable Frequency Drive (VFD), to be mounted on a common baseplate and installed in accordance with strict technical standards including HI 14.1–14.4, AWWA C207, ASME B16.5, and ASCE 7 Chapter 13 for seismic restraint. The contractor is responsible for the complete removal and disposal of the existing pump and control systems, furnishing the new pump and VFD, and installing all components including electrical connections, anchorage, piping, and safety controls such as emergency stops at the motor and upper platform. All work must comply with NFPA 70 and local codes, with wire markers limited to white, machine-printable self-laminating or heat-shrink labels, and pump components must be match-marked prior to disassembly to ensure proper field reassembly. The pump must undergo rigorous inspection and testing, including hydrostatic testing at 1.5 times shutoff head pressure, static and dynamic balancing to ISO-1940/1-(E) Grade G6.3, and performance certification meeting HI 14.6 with a 1U acceptance grade. Government representatives must be given 30 days’ notice for shop witness points including pressure tests, motor testing, and assembly verification, and seven days’ notice for field milestones such as baseplate installation, alignment, and operational testing. All inspections must occur at locations approved for U.S. Department of State travel, with relocation costs borne by the contractor if necessary. The project must be completed within twelve months of award, during standard work hours of Monday through Friday, 7:30 a.m. to 4:00 p.m., excluding federal holidays, with any overtime requiring written approval. The contractor must provide comprehensive documentation including a Removal and Disposal Plan, Safety Plan, Installation Plan, Commissioning Report, and an Operations and Maintenance Manual, along with technical drawings, calculations, datasheets, and pump performance curves. This procurement is a Total Small Business Set-Aside under FAR 19.5, restricted to small businesses