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Wilkinson Lake <br />Wilkinson Lake was part of the James J. Hill experimental farm and is now part of the Minnesota Land Trust, which <br />preserves the land in a natural condition. The City of North Oaks required 150-foot buffer between the lake edge and <br />any structures. The property beyond that buffer is currently being developed. <br />Until recently, the bottom was continuously stirred up from rough fish. The North Oaks Company has spent <br />considerable time and effort to restore the lake including a fish barrier to attempt to keep the rough fish from the <br />Mississippi River from destroying the natural vegetation and waterfowl habitat. The lake has weathered two draw <br />downs to kill the carp over the winter. The efficacy of the fish barrier is a yearly battle. Wilkinson does not have <br />much data for DO and Water Temperature this year because the area around Wilkinson Lake is gated and a code and <br />key are required to gain access. VLAWMO will continue to ask the North Oaks Company (who manages the land) <br />for a strategy to regularly access Wilkinson in order to collect more data throughout the summer. <br />A graph of the DO & Water Temp data is not included as there is only two days worth of information. Based on this <br />small amount of data, it appears that Wilkinson has the lowest DO levels of all the lakes in VLAWMO. Hopefully, <br />staff will have the ability to get on the lake more in 2008 to see if this trend continues. <br />Wilkinson 2007 DO & Water Temp Data <br />Date <br />Air Temp <br />(°C) <br />Depth (m) <br />Water Temp <br />(°C) <br />Dissolved <br />Oxygen (mg/L) <br />Avg DO (mg/L) <br />Avg temp (°C) <br />5/14/2007 <br />15.6 <br />1 <br />17 <br />3.69 <br />6.34 <br />17.05 <br />0.5 <br />17.1 <br />9 <br />7/23/2007 <br />23.9 <br />0.5 <br />22.8 <br />4.5 <br />4.75 <br />22.95 <br />surface <br />23.1 <br />5 <br />