Water Quality Characteristics - Historical Means Years monitored: 2003-2007
(Data from RMB monitoring database only)
Parameters Primary
Site
201
Parameters
201
Total Phosphorus Mean:
15.6
Total Phosphorus Min:
0
Total Phosphorus Max:
28
Number of Observations:
27
Chlorophyll-a Mean:
4.6
Chlorophyll-a Min:
0
Chlorophyll-a Max:
13
Number of Observations:
27
Secchi Depth Mean:
10.3
Secchi Depth Min:
7.5
Secchi Depth Max:
14
Number of Observations:
27
Trophic State Index Mean (Primary Site):
43.1
Trophic State:
Mesotrophic
Ecoregion Comparisons (Primary site only. Comparisons are based on interquartile range, 25th - 75th percentile, for ecoregion reference lakes)
Total Phosphorus:
Below Expected Range
Chlorophyll-a:
Below Expected Range
Secchi Depth:
Within Expected Range
Minnesota is divided into 7 ecoregions based on land use, vegetation, precipitation and geology. The MPCA has developed a way to determine the "average range" of water quality expected for lakes in each ecoregion.