SAMPLE-PSA_CONTRACTOR.docx

This is a sealed bid solicitation document from Winnebago County, Wisconsin, for the Wittman Airport Control Tower Chiller Replacement project. The procurement requires contractors to provide all labor, equipment, and materials necessary to remove the existing chiller (CH-1) and install a new 33.3 kW capacity chiller (CH-001) featuring four compressors with associated electrical and mechanical system modifications. A mandatory pre-bid meeting is scheduled for November 18, 2025, at 10:00 am at Gate #33 of the airport facility. Sealed bids must be submitted by December 2, 2025, at 3:00 pm Central Time through the County's OpenGov Procurement portal. Bid validity must be maintained for 60 calendar days following submission. The project requires compliance with detailed technical specifications outlined in the 23WINN03.00_BD_SPEC.pdf document, which addresses materials, installation methods, system testing, and performance standards. Integration with existing airport infrastructure, specifically electrical systems in control tower rooms 110, 111, and 114, is required.

Bidders must submit a bid bond equal to 5% of the total bid amount. Insurance requirements include Workers' Compensation ($100,000 per accident), Commercial General Liability ($1,000,000 per occurrence), and Automobile Liability ($1,000,000 per occurrence), with a Certificate of Insurance and Public Improvement Performance/Labor and Material Payment Bond required for contract award. No specific set-aside designations for disadvantaged enterprises are identified in the solicitation. The county will retain 5% from each partial payment until 50% project completion is achieved, with invoices processed on a net 30 basis. Winnebago County maintains tax-exempt status for materials purchases. No incumbent vendor is identified for this project, and specific budget figures are not disclosed in the available documentation.