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. 2015 May 6;10(5):e0125353. doi: 10.1371/journal.pone.0125353

Table 1. Characteristics of four eutrophic lakes sampled: Lakes Mendota, Monona, and Kegonsa are directly connected via the Yahara River, while Lake Wingra is primarily fed by ground water and urban run-off and runs into Lake Monona.

Lake characteristics Mendota Monona Kegonsa Wingra*
Coordinates 43°36'24" N, 89°25'24" W 43°4'9" N, 89°21'34" W 42°57'50" N, 89°14'60" W 43°3'13" N, 89°25'11" W
Area (km2) 39.4 13.3 13.0 1.3
Max depth (m) 25.3 22.6 9.8 4.3
Mean depth (m) 12.7 8.3 5.1 2.7
Water residence time (yr) 4.5 0.9 0.5 ND
Landscape U, F, W U, F U, F, W U, F, W
Primary non-point pollution Ag Ag Ag U

ND = not determined. U = urban, F = forested, W = wetland, Ag agriculture

*Lake Wingra is primarily fed by ground water and urban run-off