Digester Gas System Operations and Maintenance

The City of Raleigh is seeking comprehensive operational assistance, maintenance, monitoring, and performance support for the DMT Carborex digester gas treatment system at the Neuse River Wastewater Treatment Facility.

City of Raleigh > Raleigh Water


General
Open (open)
274-5230-604-Digester Gas Treatment
Oct 29, 2026 06:00 PM
Sep 18, 2026 01:14 PM
Request for Proposal (RFP)
Local
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Original Solicitation Links
Contact
jeffrey.bognar@raleighnc.gov
8500 Battle Bridge Road, Wake County, NC, USA
Submission Instructions
Mail
City of Raleigh, ATTN: Jeffrey Bognar, 8500 Battle Bridge Rd., Raleigh, NC 27610
Description

The City of Raleigh is soliciting proposals for comprehensive operation, maintenance, monitoring, troubleshooting, optimization, and technical support for the DMT Carborex digester gas cleaning and handling system at the Neuse River Wastewater Treatment Facility. The scope covers gas coolers, condensate handling, hydrogen sulfide and siloxane/VOC removal vessels, compressors, blowers, valves, instrumentation, analyzers, control panels, SCADA interfaces, safety systems, flares, and related equipment. Services include remote operational support, quarterly on-site maintenance visits, preventive and corrective maintenance, emergency response, gas-quality testing, analyzer calibration, treatment-media management and replacement, reporting, performance optimization, and coordination with City personnel and the OEM. Proposers must demonstrate relevant municipal digester-gas or renewable-natural-gas experience, including DMT Carborex expertise, access to OEM support, at least three similar municipal projects, at least one active RNG facility, and at least three municipal references. The proposal must also include a transition plan, staffing plan, financial information, technical approach, project-specific team information, pricing, applicable licenses and certifications, and a signed Environmental Management System acknowledgment.

Classification Codes
NAICS221320Sewage Treatment Facilities
PSCM1MBOPERATION OF EPG FACILITIES - GAS
Smart Codes
digester gas treatmentbiogas system maintenancegas quality monitoring
Specifications
Service Only
Timeline
Sep 18, 2026-Issue Date
Oct 05, 2026 05:00 PM-Deadline for Written Questions
Oct 16, 2026-Anticipated City Response to Questions
Oct 29, 2026 06:00 PM-Proposal Due Date
Requirements
Required
  • Commercial General Liability — $1,000,000.00
  • Automobile Liability — $1,000,000.00
  • Workers' Compensation and Employers Liability — $1,000,000.00
  • Professional Liability — $1,000,000.00
Scored
  • Minimum 3 references
  • Within the last 5 years
  • Client point of contact required for each reference
Documents
TitleDate Posted
274-5230-604-Digester Gas Treatment.pdfSep 18, 2026 12:52 PM
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