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Commission hears update on SCADA rollout and alarm issues at pump stations
Summary
Staff updated the commission that the plant SCADA installation is complete and that vendors will work next week on the remaining pump stations; commissioners discussed unresolved alarm-calling behavior that continues to call contacts after acknowledgement.
Staff updated the commission on the SCADA (Supervisory Control and Data Acquisition) rollout and alarm integration at multiple pump stations.
Staff reported the treatment-plant SCADA installation was complete and that one pump station was 99% integrated, with the remaining two stations scheduled for work next week (two days of vendor work were mentioned). Staff described an integration issue between the alarm-calling system and the SCADA: when the external alarm caller escalates, it continues calling the contact list and cannot be silenced from that external caller even if the SCADA alarm has been acknowledged. Staff said they were working with vendors on software and connectivity fixes and that additional Internet and radio work had been performed. Vendors cited in the discussion included AAC (SCADA), Xpedant (electronics) and Wintons (radio work). Staff described the issue as a work in progress and said technicians will return to continue adjustments.
Commissioners and staff emphasized the learning curve during the rollout and the need for the caller/SCADA integration to allow proper alarm acknowledgement. No formal action was taken; staff will continue vendor coordination and report back when the system is fully functional.
