The City of Santa Cruz Water Department (SCWD) is proposing to replace its Supervisory Control and Data Acquisition (SCADA) communications system at existing SCWD facilities located throughout unincorporated Santa Cruz County and City of Santa Cruz. The SCWD uses a radio-based SCADA communications system to monitor and control equipment at remote facilities such as water intakes, pumping stations, and storage reservoirs, from the Graham Hill Water Treatment Plant (GHWTP). The current SCADA
system relies on an obsolete radio that is no longer manufactured, and replacement parts and technical support are no longer available. Replacement of the entire SCADA system is required to be compatible with a new radio
The proposed project involves replacement of the existing radios in their current location, a field survey to validate an updated network design, and replacement and minor relocation of the SCADA radio base tower within the
existing GHWTP site. This project is required for the SCWD to continue the production, storage, treatment, and transmission of water. SCWD must maintain and operate the water system uninterrupted during installation and
implementation of the SCADA Radio Upgrade Project.