The Metropolitan Nashville Airport Authority is requesting proposals for SCADA and Water Quality Instrument purchase, installation, and repair. This work will include the following: Provide on-call service for SCADA (supervisory control and data acquisition) system used in the operation of the wastewater treatment facility at BNA. This includes but is not limited to: Addressing errors in the SCADA system Adding/removing authorized users Coordinating with MNAA IT staff Ensuring all data collection instruments (flow meters, water quality probes, etc.) are communicating with SCADA Provide materials needed to maintain SCADA system. This includes but is not limited to: Uninterruptible Power Supply (UPS) Wiring and circuit panels Provide on-call service for water quality instruments system used in the operation of the wastewater treatment facility at BNA. This includes but is not limited to: Flow meters YSI water quality probes Ability of water quality instruments to communicate with SCADA Provide materials needed to maintain water quality instruments. This includes but is not limited to: Components to repair existing water quality instruments. Replacement water quality instruments if existing instruments cannot be repaired or become outdated. Contractor will respond to BNA and begin resolving the problem within 24-hours of being notified of SCADA or water quality instrument issues that impact operation of the wastewater treatment facility at BNA.