# City of Marco Island Demandstar #RFQ 2026-012

Design-Build Services for Advanced Wastewater Treatment Facility Upgrades

**Posted:** August 23, 2026
**Respond By:** October 06, 2026
**Identifier:** RFQ 2026-012
**NAICS:** 237110, 237990

This opportunity involves progressive design-build services to upgrade the Marco Island Reclaimed Water Production Facility for advanced wastewater treatment.
- Government Buyer:
  - City of Marco Island Water and Sewer Department
- Scope of Work:
  - Modification of existing MLE tank anoxic and oxic zones
  - Addition of a new second anoxic zone
  - Installation of S2EBPR/RAS fermentation system
  - Supplemental carbon storage and feed system
  - Instrumentation and control improvements
  - Electrical upgrades
  - Site infrastructure, drainage, and structural improvements
  - Regulatory permitting and preconstruction engineering services
  - Maintenance of operations during construction
  - Final design, construction, commissioning, training, and handover
- Products/Services Requested:
  - Design-build services for wastewater treatment facility upgrades
- Unique Requirements:
  - Facility must remain operational during construction
  - Comprehensive commissioning and training for new systems
  - Regulatory permitting and compliance
- OEMs and Vendors:
  - No specific OEMs or vendors are mentioned in the solicitation
- Submission:
  - Qualification packages must be submitted electronically via DemandStar
- Additional Information:
  - Review of the Project Understanding document is encouraged for further details

### Description

This solicitation is for progressive design-build services to improve advanced wastewater treatment at the Reclaimed Water Production Facility in Marco Island, Florida. The project scope includes modifications to existing tanks, addition of new zones, new systems for fermentation and carbon storage, and various infrastructure and regulatory improvements. Qualification packages must be submitted electronically via DemandStar by October 6, 2026. A non-mandatory pre-proposal meeting is scheduled for September 1, 2026, at the Reclaimed Water Treatment Plant.

[View original listing](https://www.demandstar.com/app/limited/bids/547337/details)