South County Regional Water Treatment Plant (SCRWTP) Lime Softening Improvements - Blend Tank

Collier County is requesting sealed bids for construction of lime softening improvements and a blend tank at the South County Regional Water Treatment Plant (SCRWTP) under Bid No. 26-8683R, with bids due September 21, 2026 at 3:00 PM and a non-mandatory pre-bid meeting on September 3, 2026 at 10:00 AM at the facility, 3851 City Gate Drive, Naples, Florida.

The scope encompasses demolition of the existing chemical blend tank, chemical piping, and analyzers; construction of a new reinforced concrete blend tank (approximately 71' × 45' × 12.55') with associated ductile iron piping (180 linear feet of 42-inch and 130 linear feet of 36-inch), chemical injection systems (chlorine, caustic, ammonia, and corrosion inhibitor piping in Schedule 80 CPVC with double-containment), mechanical and isolation valves, electrical systems with UL 508A-certified control panels, instrumentation integration with the existing PLC, and commissioning. The structural design follows the 2023 Florida Building Code with ASCE 7-22, classified Risk Category III, and specifies concrete strengths from 2,500 to 4,500 PSI and Grade 60 reinforcing steel. The work must maintain continuous operations of the drinking water treatment facility with shutdowns limited to 8 hours maximum; work hours are 7:00 AM to 7:00 PM Monday through Friday unless otherwise specified.

The anticipated project budget is $4.27 million. The contractor must achieve substantial completion within 277 calendar days of the Notice to Proceed and final completion within 30 days after punch list delivery, with liquidated damages of $2,312 per calendar day for failure to meet the substantial completion deadline. A 5% Bid Bond, 100% Payment and Performance Bonds, and required insurance from Florida-licensed carriers are mandatory. Bidders must provide a State of Florida General Contractor License, Certificate of Authority to Conduct Business, E-Verify enrollment certification, and five project references demonstrating at least three projects within the past ten years with minimum contract values of $1 million involving water or wastewater treatment plants with chemical systems and reinforced concrete structures completed at operating facilities without unreasonable service disruptions.

Bidders must register on https://procurement.opengov.com/portal/collier-county-fl to access complete documents. All submissions are electronic only.