Addendum 1 document.pdf

This Addendum 1 document, dated August 24, 2026, pertains to an Invitation to Bid issued by the South Dakota Department of the Military for the replacement of boilers at the Yankton Readiness Center under IFB CFMO# 466422. The project encompasses complete demolition and replacement of the existing natural gas hydronic boiler and domestic hot water systems, including two Aerco Benchmark 750 gas-fired hot water boilers, three Bradford White tankless gas water heaters rated 199 MBH each, domestic hot water recirculation pumps, expansion tanks, air separators, and piping systems utilizing 30% propylene glycol for approximately 3,116 MBH total connected load. An optional pre-bid conference was scheduled for August 20, 2026 at 2:30 p.m. CDT at the facility located at 1204 West 31st Street, Yankton, South Dakota, with bids due August 27, 2026 at 3:00 p.m. CT. Work must commence within ten calendar days after Notice to Proceed and achieve substantial completion within 330 calendar days thereafter, no later than October 1, 2027, with final completion within 14 calendar days after substantial completion.

Bid security for bids exceeding $100,000 requires either a certified check, cashier's check, or draft equal to five percent of the total bid, or a bid bond of ten percent issued by a South Dakota-authorized surety. The successful bidder must provide a Performance and Labor and Material Payment Bond equal to the awarded contract value within ten calendar days of contract presentation. Liquidated damages are assessed at $575.00 per calendar day for delays in substantial completion and $300.00 per calendar day for delays in final completion. Contractors must possess a South Dakota contractors' excise tax license and comply with resident subcontractor requirements under SDCL 5-18B-6, certifying that no more than twenty percent of labor costs are provided by nonresident subcontractors unless documented unavailability of resident contractors at competitive prices. Schemmer Associates serves as the Architect/Engineer and issuing office, with Project Engineer Mark Koepke as the primary contact.