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C. The City has allowed development around the lake without sufficient requirements for handling runoff from impervious surfaces. This caused the runoff into the lake to increase significantly. And because the lake has no outlet and a clay (impervious) bottom, there has been a significant rise in the lake level above historic levels. This in turn caused the need for the pumping system. Therefore, the City should pay for all or most of the repairs. D. Everyone in the Karth Lake Watershed benefits from having the lake there to receive runoff from their properties, therefore, everyone in the watershed should pay for the improvements. E. If lake levels are not controlled the erosion will cause trees to die and fall into the lake. This will cause erosion of the shoreline. This in turn will cause progressive erosion up the hills and undermine homes and other structures. The lake would be shallowed by the erosion which would cause it to become eutrophic and turn into a wetland. Property values would fall as would tax receipts. F. Was there protection for the pump if the intake gets plugged with weeds and debris? Or does it run dry and burn out it’s bearings? How was the intake protected to prevent plugging? We were told by representatives of RCWD and HR Green that plugged filters are a constant problem with lake fountains and bubblers. G. Unlikely that there a legal basis for charging residents for improvements on parkland of a structure erected by city. H. For erosion control, consider such as use of geogrid, plantings and trees to prevent erosion instead of or in concert with building a stronger wall. I. The Board decided to defer final recommendations until Todd has had a chance to determine costs. J. The Board decided to meet again in December to review the data that that Todd has gathered by then so we can come to a final recommendation in time to enable Todd to order and receive the pump and other items to permit a resumption of pumping in the spring. K. The Board decided to begin a formulating a long-term strategic plan to identify and fund projects to maintain and improve Karth lake water quality. 5.2 2019 Excess Weed and Debris Removal Project: Results – Gary Gerding This is a report of the process, scope, results, donations and costs of the 2019 removal of excess weeds and debris from Karth Lake. This was made possible by resident donations to maintain and improve Karth Lake water quality and appearance. As a result of resident support, volunteer time and donations over the last 13 years we made and maintained significant improvements in Karth Lake. The dissolved phosphorus and the algae it feeds have been reduced and maintained over 30% and 50% respectively. Water clarity has more than doubled from under 1 meter to over 2 meters on average. According to Rice Creek Watershed District data, Karth Lake is one of the few lakes in the Twin Cities that has actually improved over the last 13 years. Because of increasing average temperatures and watershed runoff, we will have to continue working to improve the lake to maintain our gains.