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are still supported, although Allen-Bradley is no longer offering enhancements to these models, and is <br />focused on newer product lines. <br />The computers also include an older version of "WIN911" alarm dialing software. The WIN911 software <br />provides computer-generated voice alarms for alerting operators to alarm conditions. This software has <br />also become obsolete, and voice messages are often garbled. <br />The City currently operates 46 lift stations. Monitoring of ten (10) critical lift stations was included in <br />the original SCADA system: <br />• Lift Station No. 1— Shoreline Drive <br />• Lift Station No. 2 — Spates Avenue <br />• Lift Station No. 5 — Westlake Street <br />• Lift Station No. 6 — Casco Point Road <br />• Lift Station No. 9 — Bohns Point Road <br />• Lift Station No. 14 —Orchard Beach Place <br />• Lift Station No. 18 — Cherry Place <br />• Lift Station No. 21— Forest Lake Drive <br />• Lift Station No. 26 — Tonkawa Road <br />• Lift Station No. 28 — Park Lane <br />Each of the above stations was outfitted with a small Allen-Bradley PLC, and communicated to the <br />Navarre Water Treatment plant using radios operating in a 450MHz licensed frequency. The system has <br />been plagued by radio signal issues, and has been unreliable. Other stations that were not monitored by <br />the radio SCADA system have local alarm lights and/or automatic telephone dialers connected to <br />standard telephone services. <br />In the last few years, the City has started a multi-year program of upgrading lift stations. When a station <br />is upgraded, it receives a new lift station control panel with Quality Controls & Integration "1500ct" <br />controller and "Mission" cellular alarm monitoring system. The Mission alarm monitoring has been <br />effective and reliable in alerting the City to lift station problems, although it does not provide "real- <br />time" monitoring and data collection that could be used for trending and predictive maintenance. <br />Overall, the water SCADA system has become cumbersome due to changes in computer operating <br />systems. The software that was developed for the original project is difficult for the operators to use, <br />Page 2 of 18 <br />