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INDEPENDENCE LAKE
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  Independence Lake
LAKE INDEPENDENCE ID 27-0176 Hennepin County @ Maple Plain, MN
Morohometry

Elevation = ~291 km (954' MSL)

Ao = 344 ha (850 acres)

Aw = 1946 ha (4807 acres)

Zmax = 17.7 m

Zmean = 5.5 m

V = 18.9 x 106 m3

Aw:Ao = 5.6 : 1

Shoreline = 11.4 km

Littoral area = ~50%

Watershed

5% Urban

17% Wetland/Water

6% Parkland (Hennepin County Baker Park)

72% Agricultural

Water quality

Summer Epilimnion
June and August only
(1998 means, ±sd, range)

Secchi = 1.1 ± 0.1 m (2.2 - 4.3 m)
Chlorophyll a = 17 ppb (1 datum)
TP = 44 ± 2 ppb (42 - 45 ppb)
NO3-N = 15 ppb (1 datum)
NH4-N = 30 ± 5 ppb (26 - 33 ppb)
TN = 1134 ± 9 ppb (1121 - 1148 ppb)
Alkalinity = 123 (moderate)
pH = 8.4 - 8.5
EC = 348 µS/cm

Summer Hypolimnion
June and August only
(1998 means, ±sd, range)

TP = 159 ± 28 ppb (139 - 179 ppb)
NO3-N = 14 ± 2 ppb (12 - 15 ppb)
NH4-N = 1265 ± 570 ppb (861 - 1668 ppb)
TN = 2008 ± 452 ppb (1688 - 2388 ppb)
pH = ~7.1
EC = 372 µS/cm

Shoreline cabins

192 perennial
??? summer
all on city sewer

Misc

Stratified in summer; complete spring mixing in 1998 and 1999

Ice Out dates:
March 29, 1998
March 29, 1999

Fishery

Northern Pike
Walleye
Yellow Perch
Bluegill
Sunfish

 

Trophic status (Carlson TSI)

54 (mesotrophic)

 

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http://www.waterontheweb.org/data/independence/context/summary.html
date last updated: Wednesday April 14 2004