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 8: Impacting Streams and Rivers

8.2 Duck Lake

Duck Lake outlet is just north of Bob Creek on the northwest region of the Lake. The culvert runs from Duck Lake under South Pelican Drive and some property.

Duck Lake outputs 0 to 3 cfs of water into Pelican Lake. Because of this negligible flow, in 2007 the Duck Lake outlet was not monitored. It was concluded that the flow was too low to impact Pelican Lake.

In comparison to other inlet flows, Spring Creek inputs up to 50 cfs of water, Bob Creek inputs up to 35 cfs of water and Pelican River inputs up to 150 cfs of water to Pelican Lake.

Calculator

Duck Lake outlet is a circular concrete culvert. view site calculator

Total Phosphorous

Duck Lake TP concentration ranges from 0.01 to 0.05 mg/L. TP loading is generally between 0 and 0.3 lbs per day. Some spikes in TP concentration have been observed. It is suspected that lawn fertilizers are the source. view graphs

Ortho Phosphorous

Duck Lake OP concentration ranges from 0.005 to 0.03 mg/L. OP loading is generally between 0 and 0.25 lbs per day. view graphs

Chlorophyll A

Duck Lake ChlA concentration ranges from 0.001 to 0.05 ug/L. ChlA loading is generally between 0 and 0.25 lbs per day. Since Duck Lake has an elevated eutrophic state, and is a still body of water, higher algae levels are expected. These elevated levels of ChlA could also be occurring due to strong south winds and wave action that push algae and weeds against the North Shore. view graphs

Fecal Colonies

Spikes in FC concentration over 200 FC/100ml have been observed. This site has not been targeted for source identification because of the nearly insignificant amount of flow and loading generated. view graphs

Total Suspended Solids

Duck Lake TSS concentration ranges from 0.5 to 10 mg/L. TSS loading is generally between 0 and 40 lbs per day. Since TSS concentrations are generally low, it is likely that they stay dissolved in the water instead of generating fill at the outlet. view graphs

Flow

Duck Lake outputs 0 to 3 cfs of water into Pelican Lake. Because of this negligible flow, in 2007 the Duck Lake outlet was not monitored. It was concluded that the flow was too low to impact Pelican Lake in any way. view graph

to 8.3 Spring Creek Inlet

back to main Inlets/Outlets page

 
© Copyright 2007 Pelican Group of Lakes Improvement District