WM4830-03 Canal WTP Filter Rehabilitation and Valve Replacements

The City of Columbia is seeking a qualified contractor to perform comprehensive filter rehabilitation and valve replacement work at the Canal Water Treatment Plant (WTP). The scope includes demolition, trenching, concrete repair, installation of new filter underdrains, replacement of a variety of valve types (butterfly, gate, actuators), associated piping, protective coatings, and full commissioning. The contractor must provide all labor, equipment, materials, traffic control, and 24‑hour emergency response, and must meet a total contract period of 630 calendar days (600 days to substantial completion, an additional 30 days to final completion). The project requires compliance with South Carolina licensing, detailed submittal and documentation procedures, and a 1 % liquidated‑damage penalty of $1,000 per day for late completion. • Location: Canal Water Treatment Plant, Columbia, SC • Contract value: multi‑million‑dollar municipal infrastructure upgrade • Duration: up to 630 days (≈ 1.7 years) • Key tasks: filter underdrain installation, filter media replacement, valve (AWWA butterfly, resilient seated gate, ductile iron, plastic) removal and installation, actuator integration, pipeline testing, commissioning, and close‑out documentation • Mandatory requirements: South Carolina contractor licensing, provision of traffic control, 24‑hour emergency contact, submission of as‑built drawings, warranties, and a one‑year warranty period after final acceptance • Schedule milestones: Pre‑bid Zoom meeting 9/24/2026, question cutoff 10/16/2026, bid opening 10/9/2026, bid submission deadline 10/30/2026.