Instrumentation Calibration and Maintenance at the Wastewater Treatment Plant

The City of Raleigh, North Carolina is requesting proposals for instrumentation calibration and maintenance services at its wastewater treatment facilities, with proposals due October 19, 2026 at 2:00 PM EST and written questions due September 28, 2026.

The scope covers routine and as-needed calibration, preventive maintenance, troubleshooting, and technical support for approximately 150 individual process instruments across four facilities: Neuse River WWTP, Little Creek WWTP, Smith Creek WWTP, and Wrenn Road Facility. Instrumentation includes pH, ORP, and conductivity analyzers; dissolved oxygen analyzers; turbidity and total suspended solids analyzers; ammonia, nitrate, nitrite, and phosphate analyzers; total and residual chlorine analyzers; UV intensity sensors; flow meters; level sensors; sludge blanket monitors; and associated controllers, transmitters, probes, and sample handling systems. The contractor must supply all labor, tools, test equipment, certified standards, consumables, software, and documentation; adhere to manufacturer recommendations and industry best practices; and provide emergency response within 24 hours for critical equipment failures.

The contract term is up to five years with renewal options to be determined. Pricing shall be submitted as annual costs for instrumentation services plus an allowance for repair parts and optional services up to $35,000. All hourly rates must be fully burdened; markup for materials and parts not included in routine calibration and preventive maintenance is capped at 15 percent.

Evaluation uses two stages. Stage 1 weighs corporate background and experience (20 points), firm financial stability (10 points), project understanding (15 points), project approach (15 points), team firm experience (20 points), and proposed cost (20 points). Selected firms may advance to Stage 2 for interviews and demonstrations worth up to 5 additional points.

The contractor must maintain commercial general liability insurance of at least $1 million per occurrence and $2 million aggregate, automobile liability insurance of at least $1 million, and worker's compensation insurance with statutory limits. Compliance with all federal, state, and local safety regulations and acknowledgment of the City's Environmental Management System are required.