Rehabilitation of the Oxygenation Train #3 (Project # 24-9422)

The project consists of the Rehabilitation of Oxygenation Train No. 3 at the City of Hollywood South Regional Wastewater Treatment Plant (SRWWTP). The rehabilitation includes comprehensive structural, mechanical, and electrical upgrades designed to restore aging infrastructure and enhance operational reliability. Project Description The Oxygenation Train No. 3 Rehabilitation project at the South Regional Wastewater Treatment Plant (SRWWTP) focuses on restoring one of the facilitys key activated sludge treatment units. Oxygenation Train No. 3 is part of a system of five parallel trains that utilize pure oxygen generated on-site to support biological oxidation within the activated sludge process. Each train contains four baffled cells arranged in series to promote plug-flow characteristics, enabling efficient conversion of biologically oxidizable organic pollutants into stable biomass. Surface aerators and mixers maintain circulation and mixing of the mixed liquor, ensuring optimal contact between microorganisms and wastewater. This rehabilitation effort addresses the aging structural, mechanical, and electrical components of Train No. 3, which has been in continuous operation since its commissioning in 1997. The project includes concrete repair, lining restoration, replacement of aerators and mixers, installation of new valves and a purge blower, and upgrades to electrical disconnects, wiring, and control equipment. The project scope includes: Concrete rehabilitationspall repairs at varying depths, crack injection, lining system replacement, construction joint repair, expansion joint repair, and column and aerator loor repairs. Mechanical improvements include new aerator mixers, installation of a purge blower, butterfly and check valves, pneumatic control valves, and 12-inch plug valve replacements. Electrical upgrades address disconnect switch replacement, new wiring for flow and pressure instrumentation, sampling panel improvements, and control panel installations. 4.2. Technical Specifications Refer to Attachment B - 24-9422_O2 TRAIN 3 REHABILITATION_SPECS DIV 01-46_BID SET_JULY 2026 4.3. Contractor Qualifications The Contract will be awarded only to the responsive and responsible bidder, who in the opinion of the Engineer and Procurement Division, is fully qualified to undertake the work and is in compliance with the Citys Local Preference Criteria (when applicable). The City reserves the right before awarding the Contract to require a bidder to submit such evidence of his qualifications as it may deem necessary and may consider any available evidence of his financial status, technical qualifications and other qualifications and abilities. Bidders shall submit proof, along with their bid, that their firm has successfully completed comparable projects meeting the following criteria: A. The Bidder shall have successfully completed a minimum of one (1) project demonstrating experience installing mechanical aerators for high-purity oxygen (HPO) applications greater than or equal to 40 HP. This project shall have been performed within the past ten (10) years from the date of the Invitation to Bid. B. Structural Rehabilitation of Oxygenation Train 3: The Bidder shall have successfully completed a minimum of one (1) project demonstrating experience with structural rehabilitation of interior of oxygenation trains projects having a total construction value of greater than $5 million and three (3) projects demonstrating experience structural rehabilitation of inner O2 trains projects having a total construction (for each project) of greater than $3 million. These projects shall have been performed within the past ten (10) years from the date of the Invitation to Bid. C. The Bidders proposed project manager shall have successfully completed a minimum of two (2) projects demonstrating project management experience with oxygenation train upgrade projects having a total construction value (for each project) of greater than $5 million. These projects shall have been performed within the past ten (10) years from the date of the Invitation to Bid. D. The Bidder or Bidders Electrical Subcontractor shall have successfully completed a minimum of five (5) projects demonstrating experience with medium and low voltage industrial power systems, including motor control centers (MCC), motors, transformers and switchgear. These projects shall have been performed within the past ten (10) years from the date of the Invitation to Bid.