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<br /> <br /> <br /> <br />2550 University Ave. West, Suite 400N |St. Paul, MN 55105 <br /> Main 651.644.4389 + Fax 651.644.9446 <br /> <br />HRGREEN.COM <br /> <br /> <br /> <br /> <br />October 5, 2018 <br /> <br />Sue Polka <br />1245 Hwy 96 W <br />Arden Hills, MN <br />55126 <br /> <br />Subject: Arden Hills Utility Monitoring & Control <br /> <br />Dear Sue: <br /> <br />We are pleased to present this proposal to advise Arden Hills on your utility monitoring and control <br />system improvements. We propose to investigate communications with historical data archiving and <br />access alternatives. Chiefly, private radio telemetry vs. cellular and local data archiving vs. cloud data <br />archiving. The goal of our proposed work is to provide Arden Hills with recommendations for a single <br />monitoring system, for both water and wastewater, possessing technology for both current replacement <br />and future expansion. <br /> <br />PROJECT UNDERSTANDING <br />Currently, potable water telemetry functions via cellular as provided by High Tide Technologies while <br />the wastewater sites are using cellular as provided by OmniSite. While the OmniSite units have <br />operated very effectively, High Tide equipment is not functioning reliably, and High Tide has not been <br />responsive in solving these problems. Since Arden Hills combines its maintenance and operations, of <br />both water and wastewater, with a singular work force, it is desirable to have the same monitoring <br />systems for both. Since Arden Hills is anticipating expansion in the near future, it is time to consider <br />alternatives to High Tide Technologies and the future functionality of OmniSite. <br />HR Green and Arden Hills agreed to hold a meeting with all operations people present. HR Green <br />solicited information from operations staff to achieve a better understanding of Arden Hills current <br />operations, its problems and the staff views of needed improvements & desirable characteristics of a <br />new system. The following information was gathered for desirable characteristics: <br /> Reliable – eliminate need to visit site locally to reset cellular modem when communication error <br />occurs. Communication retries should be an automatic feature. <br /> Remote control is not necessary; monitoring only, is desired. <br /> Have water and wastewater on one system (all operators are trained for both water and <br />wastewater) <br /> Smart phone capability for both monitoring and alarms <br /> Local alarm disable at all sites for maintenance personnel (eliminates false alarms) <br /> Alarm system needs to be flexible for changing on-call schedule. <br /> Do not want radio towers at each lift station (customer complaints are a sure thing) <br /> Not opposed to Cellular telemetry but reliability must improve. <br /> Most stations are not near internet service providers so avoid using this comm. method. <br />