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08-13-2018 Council Minutes
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08-13-2018 Council Minutes
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MINUTES OF THE <br /> ORONO CITY COUNCIL MEETING <br /> Monday,August 13,2018 <br /> 7:00 o'clock p.m. <br /> 14. LMCD—Continued <br /> -Mechanical harvesting <br /> -Hand removing weeds <br /> -Weed removal divers <br /> Schleunig noted the variations in the bays and conditions helps dictate what management method is <br /> utilized. <br /> As it relates to AIS management through harvesting,in 2015, 576 acres were covered, with 1,000 tons of <br /> AIS being removed through the use of three mechanical harvesters,one high speed transporter, and one <br /> conveyor. Since 2016,two mechanical harvesters used partly due to budget. In 2017,261 acres were <br /> treated,with more than 637 tons being removed. After removal,the AIS is trucked off site and <br /> composted. <br /> The harvesters are staffed with a site supervisor and seasonal interns consisting largely of college <br /> students. The interns undergo significant training consisting of classroom and on the water training. The <br /> interns are required to attain the DNR lake service provider certification. The LMCD also follows the <br /> manufacturer recommendations for mechanical harvesting. <br /> Schleunig reviewed the following items associated with mechanical harvesting: <br /> —The weeds are cut and then the debris is skimmed from the lake. <br /> -The cutters cut anywhere between 1 and 5.5 feet deep depending on water depth. <br /> -The weeds are stored on the harvester or transferred to a transport barge or a shore conveyor. <br /> -The LMCD monitors aquatic vegetation amounts and types frequently throughout the day. <br /> -The LMCD may reach out to the MN DNR for assistance with plant identification. <br /> -Zebra mussels are removed along with the vegetation. <br /> -An occasional turtle that is captured is returned unharmed to the lake. <br /> -The offload sites are cleaned. <br /> -Lakeshore owners are allowed the use of offload sites with appropriate MN DNR transport permit. <br /> Schleunig stated the harvesters help prevent the spread of AIS and that last year the LMCD implemented <br /> two pilot programs. One was a private-public partnership for use of the offloading sites and the other was <br /> allowing residents to use one of the trucks for a fee. In addition,the LMCD researches new ways to <br /> address the ecology and safety on Lake Minnetonka in consultation with the MN DNR. <br /> Other lake protection and safety elements include the following: <br /> -Reducing biomass,which consists of organic matter/vegetation and blue-green algae <br /> -Navigation routes <br /> -Water quality due to nitrogen/phosphorus runoff <br /> -Monitoring recreation and fishing on the lake <br /> -Picking up trash, leaves, lake vegetation lost watercraft/toys, logs,etc. <br /> -Maintaining offload sites <br /> -Monitoring on-water hazards, nuisances, and ecological concerns <br /> A video was played depicting a harvester removing milfoil. <br /> Page 5 of 14 <br />
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