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

back to main Little Pelican Lake page

Little Pelican Lake Water Transparency

more information water transparency

On Little Pelican Lake, Site 201 is monitored by a volunteer living on the lake, and Site 202 is monitored by RMB Environmental Laboratory Staff.

2011 Results

In 2011, site 202 was monitored by RMB Environmental Laboratory staff for water transparency with a Secchi disk. The historical mean for site 202 is 8.7 feet, so the 2011 average of 7.8 feet is lower than the historical average. The results from the volunteer monitor at site 201 are similar to site 202 showing no trend in water transparency during the 2011 summer.

Table 1. 2011 Secchi depth results.
Site Mean Secchi Depth (ft) Min Secchi Depth (ft) Max Secchi Depth (ft)
201 (1996-2009) 7.9 6.0 10.2
202 7.8 4.5 12

Site 201

Site 201 has been monitored from 1996 to 2009 by a volunteer living on Little Pelican Lake. You can see the results in the graph below. This graph shows the typical cycle in water transparency. The lake water is usually very clear in early May, and then with turnover in late May-June the water is cloudy. In July and August, water transparency is usually lowest due to algae blooms. In September, the water usually clears up again once the algae die off due to the cold and shorter days.

A trend analysis shows that there is no trend in transparency occuring in Little Pelican Lake. This means that the transparency is staying consistent, not increasing or decreasing.

Site 202

Site 202 has been monitored from 2003 to 2011 by RMB Environmental Laboratory staff. Results are similar to site 201.

to next page: Little Pelican Chlorophyll-a results

back to main Little Pelican Lake page

 
© Copyright 2007 Pelican Group of Lakes Improvement District