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ARDEN HILLS REGULAR CITY COUNCIL MEETNG—JANUARY 30, 2012 4 Public Works Director Maurer explained that the lack of any standardization makes the operation and maintenance of the City's 14 lift stations much more difficult than it should be. Specifically, some of the issues that need to be addressed include: • At least four or five different pump manufacturers are used in the 14 lift stations. • One of the prominent pumps present in our lift stations, Pump X, ceased manufacturing in 2005 and discontinued the manufacture of spare parts in 2010. • The operating system used in our most recently reconstructed lift stations, Sycom, is proprietary software and the one vendor that services it has become very unreliable. • Electro Watchman, who we use for monitoring alarms at our lift stations, is not able to provide basic information about alarms. For instance, when Lift Station #8 was overwhelmed by rain water in July 2011, Electro Watchman sent many messages to our Public Works crew about alarms. However, when we were working with the LMC insurance adjuster, we discovered that Electro Watchman could not tell us if Lift Station #8 ever lost power. They could only tell us that there were alarms at specific times, not what the alarm was indicating. Public Works Director Maurer explained that because of the issue of non-standardization, Seth Peterson of Bolton and Menk worked with the Public Works crew to come up with a standard design, pump manufacturer, and standard control system for all the lift stations that would then become the model for the design of the reconstruction of Lift Station #13. This process took several months and included site visits by some of the Public Works crew to two service departments of pump manufacturers to review their pumps and see their service departments. After this process, Flygt pumps were established as the standard for all the City's lift stations. Public Works Director Maurer stated that there currently are four lift stations in need of some upgrading. (The detail of each lift station upgrade is included in the agenda memo.) He reviewed the following list in order of priority: 1. Lift Station#8 located at 1335 Ingerson Road. 2. Lift Station#5 located at 3495 Lake Johanna Boulevard. 3. Lift Station#7 which is located at 3220 Lake Johanna Boulevard (Presbyterian Homes). 4. Lift Station#2 located at 1850 County Road E2 (along the trail behind Perry Park). Public Works Director Maurer stated that as part of the standardization of our lift stations, an OmniSite unit will be installed in each upgraded control cabinet. The OmniSite is a monitoring system that will replace the need for Electro Watchman at these upgraded control panels. It will also eliminate the need for a SCADA system that is in the CIP in 2014. OmniSite uses cellular technology to provide a cell call, text message, and/or e-mail in the case of an alarm at the lift station. Unlike our current monitoring system, it will identify the exact cause of the alarm so the responding Public Works employee knows what to expect before getting there. It will also create a record for future reference. Similar to a SCADA system, any lift station with an OmniSite controller can have its operation monitored from any computer., The only difference between OmniSite and SCADA is you cannot make adjustments to the lift station operation remotely. The cost of installing an OmniSite at a lift station control panel is about $2,00043,000 as compared to a SCADA system that is closer to $12,000415,000 based on our 14 lift stations.