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• Pumping is thus an essential component of the City's surface water management <br />responsibilities within the entire watershed. <br />• The DNR Pumping Strategy can be improved upon. KLIDB recommends an alternative <br />pumping strategy (Proposed Strategy) of starting to pump sooner, at 935.5, and only <br />removing half a foot at a time by turning the pump off at 935.0. This strategy is superior <br />to the DNR Pumping Strategy on nearly all metrics (reduced bounce, higher average <br />Levels). The Proposed Strategy would require pumping in 81 % of all years versus 75% for <br />the DNR Pumping Strategy but pump for 2.5% fewer days, thereby extending the <br />expected life of pumping equipment. <br />Recommendation for Implementation: <br />The upcoming City's 2026 PMP Street and Utility Improvements project (2026 PMP) <br />provides an opportunity to include design and fundingfor: <br />1. Automated equipment to allow remote lake level monitoring and pump control. <br />2. Replacement of the current retaining wall at hose hookup to include a permanent <br />fixed pump in a vandal -resistant concrete housing. The existing pump should be <br />used as backup. <br />KLIDB urges a solution that is consistent with a long-term vision for the health and <br />functionality of the Karth Lake watershed. Climate change and the risk of expansion of <br />impervious surfaces from future development (including Shoreview portions of the <br />watershed) calls for a long-term perspective in today's infrastructure investments. <br />Page 4 of 4 <br />