05/06/1996 Park Board Packet - Laserfiche WebLink

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Section 4 Reshanau Lake Reshanau Lake is located in Anoka County southwest of the city of Lino Lakes. The lake has a surface area of 336 acres and a maximum depth of 16 feet. The tributary drainage area to the lake is 4.032 square miles(Figure 4-1). Land use in the drainage area is primarily a mixture of agricultural and single family residential. Residential areas are located around Reshanau Lake with the only immediate open space being a City owned Park on the southwest side of the lake. The MDNR ecological classification for Reshanau Lake is marginal fish-wildlife (MDNR 1978), a term used to denote a highly eutrophic lake containing substantial populations of carp and bullheads and extensive aquatic plant growth. The MDNR management classification for Reshanau Lake is periodic winterkill, indicating that management is designed to furnish a black crappie,bluegill, and largemouth bass fishery. An MDNR fishery survey in 1992 indicated above average numbers of black bullhead and carp,and average numbers of northern pike, yellow perch, and yellow bullhead,while white crappie,black crappie,and bluegill were below the local median abundance. Reconnaissance of the watershed showed two primary inflows to the lake. These two inflows are located on the south and east ends. The primary inflow ditch east of the lake is County Ditch 25. The lake outlet is located on the southwest side of the lake and discharges to Rice Lake. Inflow and outflow conditions were monitored at the locations shown on Figure 4-1. LAKE MONITORING The following sections present the results of the lake monitoring for individual water quality parameters. Table 4-1 presents the monitoring results and summary statistics. MONTGOMERY WATSON Page 4-1