26-026-ITB_Drawing_Pkg_+_KA5_&_KA10_Blower_Info_-_Attachment_1.pdf

This is a drawing package and equipment specification document prepared by the Kenton County Airport Board (KCAB) for the procurement of coarse bubbler aeration equipment to replace existing fine bubbler systems in two digester tanks at Cincinnati/Northern Kentucky International Airport. The project involves the supply and design of complete aeration systems including coarse bubble diffusers, diffuser mounting assemblies, air distribution manifolds constructed of Type 304 stainless steel, drop pipes, fittings, supports, and connection components. A mandatory pre-bid meeting and site visit is scheduled for Thursday, April 23, 2026 at 10:00 am at CVG Centre Administrative Offices, 77 Comair Boulevard, Erlanger, Kentucky 41018. Written questions must be submitted by 11:59 pm on Monday, April 27, 2026, with responses posted no later than Thursday, April 30, 2026 at 11:59 pm. Sealed bids are due by Thursday, May 7, 2026 at 2:00 pm Eastern Time through KCAB's online bidding portal, and the anticipated board approval date is May 26, 2026 with construction completion targeted for November 1, 2026. Equipment delivery is required within 24 weeks of design approval, and bids must remain valid for a minimum of 120 days from the closing date.

Pricing is firm fixed, all-inclusive, and delivered FOB Cincinnati/Northern Kentucky International Airport, with a total appropriations request of $639,000.00 comprising $551,000.00 for equipment costs and $88,000.00 for construction and installation costs including a 20 percent vendor contingency. This federally funded project is subject to multiple federal requirements including Buy American preferences, Disadvantaged Business Enterprise (DBE) participation goals under 49 CFR Part 26, Davis-Bacon prevailing wage requirements if installation services are included, and Executive Order 11246 affirmative action and equal employment opportunity requirements. Equipment manufacturers must demonstrate a minimum of five years of documented experience producing similar coarse bubble aeration systems for industrial or municipal wastewater applications and provide proven performance through at least three installations of similar size and application. Bidders must submit a bid bond equal to 10 percent of the proposed contract amount, a performance bond of 100 percent of the contract amount, and a payment bond of 100 percent of the contract amount, with all bonds obtained from a surety company rated at least "A" by Best Insurance Reports and authorized to do business in Kentucky. Liquidated damages are assessed at 1 percent of the purchase price per day of delay, with termination rights available after 60 days of non-compliance.