Lake Management Plan

go to PGOLID main pageChapter 1 includes an introduction and abstract
Chapter 2 includes the goals of PGOLID
Chapter 3 history covers geological formation to current district projects
Chapter 4 covers watershed characteristics of most of northwest Minnesota
Chapter 5 covers the main watershed around the Pelican Lakes
Chapter 6 covers the minor watersheds that surround Pelican Lake
Chapter 7 describes the types of data collected and why
Chapter 8 reports the data and water quality of inlets and outlets to Pelican Lake
Chapter 9 reports the water quality data for the Pelican Lakes

Chapter 10
Chapter 11 Safety and Buoys

 

Questions?
PGOLID Water Resource Coordinator
218-846-1465, email

Chapter 9: Lake Water Quality

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Big Pelican   56-0786-00  
MN Lake ID: 56-0786-00
County: OtterTail
Ecoregion: Northern Central Hardwood Forests
Major Drainage Basin: Red River
Latitude/Longitude: 46.70138889 / -96.02805556
Water Body Type: Public Waters
Physical Characteristics
Surface area (acres): 3986
Littoral area (acres): 1625
% Littoral area: 40%
Max depth (ft): 55 (m): 16.8
Monitored Sites (Primary): 206
Monitored Sites (Secondary): 201, 205

Water Quality Characteristics - Historical Means
Years monitored: 1996, 1998-2007

(Data from RMB database only)
Parameters 206 201 205
Total Phosphorus Mean: 16.3 17.8 18.3
Total Phosphorus Min: 6 9 13
Total Phosphorus Max: 45 24 26
Number of Observations: 56 8 9
Chlorophyll-a Mean: 5.2 7.2 8.1
Chlorophyll-a Min: 0 4 4
Chlorophyll-a Max: 12 12 17
Number of Observations: 56 8 9
Secchi Depth Mean: 12.3 9.9 10.2
Secchi Depth Min: 7 8 7
Secchi Depth Max: 26 14 14.5
Number of Observations: 56 8 9
Trophic State Index Mean
(Primary Site): 		43.9
Trophic State: Mesotrophic

Long-term Trends
(Primary site only. For detecting trends, a minimum of 8-10 years of data with 4 or more readings per season are recommended. Minimum confidence accepted by the MPCA is 90%)

Total Phosphorus: No Trend
Chlorophyll-a: No Trend
Secchi Depth: No Trend
Trophic State Index: No Trend
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: Within Expected Range
Secchi Depth: Above Expected Range

explanation of Ecoregion Comparisons

Questions? Contact the PGOLID Water Resource Coordinator 218-846-1465, email

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