Digester Gas System – Operational Assistance and Maintenance Services

The City of Raleigh seeks a qualified contractor to provide full‑service operation, maintenance, monitoring, and performance support for the digester‑gas cleaning system (DMT Carborex) at its Neuse River Wastewater Treatment plant. The contractor will act as the primary technical resource, handling preventive and corrective maintenance, system monitoring, gas‑quality testing, media replacement, emergency response, optimization, reporting, and coordination with city staff. The scope covers gas coolers, moisture removal, H₂S and siloxane removal vessels, compressors, blowers, instrumentation, control panels, safety devices, and flares. Staffing must include project management, SCADA/controls, instrumentation, mechanical, and process engineering expertise, with a detailed 90‑day transition plan from the city’s current self‑performed model. Remote support via phone/Teams and on‑site visits for inspections are required. • Provide 24/7 operational support and troubleshooting for the digester‑gas treatment system. • Perform preventive and corrective maintenance on all equipment listed in the scope. • Conduct regular gas‑quality monitoring, media management, and performance optimization. • Deliver detailed reporting and maintain records in compliance with regulatory standards. • Supply qualified personnel (project manager, controls engineers, instrumentation/mechanical staff, process engineers). • Execute a 90‑day transition plan and ongoing training for city staff. • Follow the City’s submission requirements (hard copy, electronic PDF, cost forms) and meet the Oct 29 2026 deadline.