Renovation of a playground / park / athletic field in Lowell, Massachusetts. Completed plans call for the renovation of a playground / park / athletic field.

Work consists of providing all labor, qualified supervision, materials, tools, equipment, supplies, and incidentals necessary to replace Cooling Tower #1, one condenser pump, and two circulatory pumps. The new equipment shall connect the cooling tower to the existing newly rebuilt Chiller #1 and circulate water throughout the building. All work shall be performed in accordance with the detailed scope of work, specifications, and applicable construction requirements provided in the final solicitation documents. The requirement includes full installation and integration of the replacement equipment to ensure proper operation of the building's cooling system. The contractor shall begin performance within 10 calendar days and complete it within 350 calendar days. QUESTIONS Pre-proposal questions shall be submitted a minimum of 7 days prior to the due date and time for proposals. Submit questions only through email to both of the following: Contracting Officer, Samuel McKenzie, Samuel_McKenzie@ios.doi.gov. The estimated magnitude of the complete requirement is between $250,000.00 and $500,000.00 *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document. The Work consists of: 1. The work is for a cooling tower replacement on the roof of the fifth floor of the Boott Cotton Mill #6. The project involves removing the existing rooftop cooling tower by crane (placed at adjacent Bridge Street, requiring police detail for traffic control) and installing a new low-rise cooling tower on new vibration rails on a steel structure without disturbing the newly installed EPDM roof. Piping connections are to be made at the roof level and replace degraded connecting valves. This is one of two cooling towers for the building. The roof does not have a parapet, so emphasis will be placed on the safety plan for the work. Work will include replacing variable frequency drives to the cooling tower system. 2. Work also includes replacing one 384 gpm 90' head condenser pump and two 500 gpm 70' head circulatory pumps that connect Chiller #1 (the chiller is not in this scope of work, but a separate contract will be implemented to rebuild it, and work could overlap) to the Cooling Tower #1. Work also includes replacing degraded 6 two-way control valves, approx. 24 ball valves and flexible joints, 1 automatic control valve, 4 butterfly valves, approximately 16 lf of pipe and connections necessary to complete the connections, 3 sets of vibration springs and mounting to existing concrete pads. Electrical work shall include new conduit and wiring as necessary to tie in the new motors. 3. Option #1 is to replace one circulatory pump in the adjacent building basement mechanical room. Work will include adding variable frequency drive to the pump. Work includes replacing degraded 2 two-way control valves, 8 ball valves, 1 automatic control valve, 2 butterfly valves, approximately 8 lf of pipe and connections necessary to complete the system, 1 set of vibration springs and mounting to existing concrete pad; and program the cooling tower and the pump to the Trane Building Management System. Electrical work shall include any new conduit and wiring. 4. Refer to the balance of Contract Specifications and Plans for complete Scope. 5. The cooling tower and the pumps shall be integrated into Trane Integrated Building Systems controls and tested. 6. While not required, it is recommended to be present for the site visit during solicitation.