Utility Supervisory Control and Data Acquisition System

The Vendor is required to provide a comprehensive proposal for the complete replacement and modernization of the city's utility supervisory control and data acquisition (SCADA) system.
- This project encompasses the replacement of obsolete programmable logic controllers (PLCs), human-machine interfaces (HMIs), and the implementation of a modern SCADA host platform across multiple utility facilities.
- The current system consists of various legacy equipment that has reached end-of-life status, creating operational challenges and maintenance concerns. 
- The City requires a unified, scalable solution that will improve operational efficiency, enhance data collection capabilities, and provide reliable service for the next 15-20 years.
- System presents several operational and maintenance challenges:
•    Multiple PLCs and HMIs have reached obsolete status with limited support availability.
•    Inconsistent control system platforms across facilities complicate maintenance and training
•    Disorganized backup systems and missing electrical drawings.
•    Limited data collection prevents optimization opportunities.
•    Absence of remote monitoring and mobile capabilities.
- Provide a complete turnkey solution including:
•    System design and engineering
•    Hardware procurement and installation
•    Software development and configuration
•    System integration and commissioning
•    Training and documentation
•    Warranty and ongoing support services for 5 years
- SCADA Host Platform
•    Implementation of a modern, scalable SCADA host system
•    Integration capabilities with all field devices
•    Built-in drivers for existing and new control systems
•    Comprehensive trending and historical data storage
•    Remote access and mobile capabilities
•    Redundant server configuration for high availability
•    Cybersecurity features meet current industry standards.
- PLC/RTU Replacement
•    Replacement all obsolete PLCs.
•    Upgrade all obsolete RTUs current generation equipment.
•    Provide migration path for existing control logic.
•    Ensure all new PLCs include Ethernet connectivity.
- HMI Upgrades
•    Replace all obsolete HMIs with appropriately sized units.
•    Ensure all HMIs provide adequate screen size for operator interaction.
•    Develop consistent graphical standards across all facilities.
•    Include local trending and alarm management capabilities.
- Documentation and Organization
•    Complete control system reviews for all facilities
•    Development of comprehensive electrical drawings
•    Creation of organized backup structure with offsite storage
•    Asset management database for all control system components
•    Standard operating procedures for system maintenance
- Cybersecurity Requirements
•    Role-based access control, ideally with Active Directory integration or Entra
•    Audit logging of all configuration changes and user actions.
•    Regular security patch availability
•    Vulnerability assessment documentation

- Contract Period/Term: 1 year
- Optional Site Meeting Date: December 10, 2025
- Questions/Inquires Deadline: December 12, 2025