WM4830-03 Canal WTP Filter Rehabilitation and Valve Replacements

The City of Columbia is soliciting bids for the comprehensive rehabilitation of filters and replacement of valves at the Canal Water Treatment Plant (WTP). The work includes demolition of existing structures, concrete repair, installation of new filter underdrains, replacement of a variety of valve types (butterfly, gate, actuators), associated piping, mechanical and electrical components, protective coatings, and full commissioning. The contractor must provide all labor, materials, equipment, traffic control, and 24‑hour emergency response, and must meet a 600‑day substantial completion schedule with a total contract period of 630 days. Key requirements include compliance with South Carolina licensing, no DBE requirements, provision of spare parts for one year, and adherence to liquidated damages of $1,000 per day for late substantial or final completion. • Scope: filter underdrain media, filter media, valve & actuator replacement, associated piping, concrete work, demolition, back‑filling, testing, and commissioning. • Duration: 630 calendar days (≈ 1.7 years) from notice to proceed. • Location: Canal Water Treatment Plant, Columbia, SC. • Mandatory pre‑bid Zoom meeting on 9/24/2026 (informational only). • No DBE participation required; contractor must hold appropriate SC contractor licenses. • Liquidated damages: $1,000 per day for both substantial and final completion delays. • Close‑out includes warranties, spare‑parts inventory, as‑built drawings, and one‑year warranty.