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Winterstein, Thomas, A. Estimated Ground-Water Use in Becker, Clay, Douglas, Grant, Otter Tail, and Wilkin Counties, Minnesota for 2013 and 2050. (2007). U. S. Geological Survey Scientific Investigation Report 2007- 5073.

This study attempts to estimate the groundwater use rates in the outlined counties based on increases in population, and projected increases in water use for irrigation, industrial companies, and public water supply. The 2030 estimated total groundwater use is between 28,000 and 37,000 million gallons per year (28 – 37 billion gallons per year). The 2050 estimated total groundwater use is between 32,000 and 41,000 million gallons per year (32 – 41 billion gallons per year). This information is further divided by county and aquifer.


North Side Stormwater Treatment Study Detroit Lakes, Minnesota. (May 2009). Ulteig Engineers, Inc. Stormwater Treatment Study UEI Project No.: R07.50052 (507.052).

This study reviewed the potential for current stormwater infrastructure to handle rain events based on Pelican River Watershed District’s new stormwater requirements. The study determined that current infrastructure would not meet the new requirements and recommends increasing storage to provide additional treatment. Four basins were recommended to excavate to increase depth and storage, while one new basin location was recommended.


Stormwater Drainage Plan Storm Sewer Drainage District Detroit Lakes, Minnesota. (June 2001). Larson-Peterson & Associates, Inc.

After a thorough review of the drainage system in Detroit Lakes, Larson-Peterson & Associates, Inc has recommended 14 different high priority projects for the city to complete in the next 20 years to prevent degradation of water quality in Detroit Lake and Pelican River. Maintenance practices, public education, regulations, and capital improvements were also recommended to improve flooding and water quality in the city.


Neel, Joe K. Impact of Special Phosphorus Removal Procedures in the Upper Pelican River Watershed, Becker County, Minnesota, 1977-80. (June 1981). Pelican River Watershed District.

This study measured phosphorus levels and eutrophication of lakes in the upper Pelican River watershed, especially Lake Sallie. In the first portion of the study, removal of aquatic vegetation led to a reduction in aquatic vegetation growth in later years. The second portion of the study measured the background condition of Lake Sallie while an improved wastewater treatment facility was being constructed. Spray irrigation was the most effective means to remove nutrients from wastewater. Growth of blue-green algae declined during the study in response to wastewater treatment and meteorological conditions.


1983 Watershed-Lake Assessment. (April, 1984). Instrumental Research, Inc.

This assessment was used to determine the existing condition of the lakes located along the Pelican River and identify any corrective measures needed. Lake samples were collected for nutrients and water clarity. Sediment core samples were collected to determine sedimentation rates. Management practices include determining and reducing upland nutrient loading sources, modifying some marshlands in the watershed to hold more nutrients and sediment during severe storm loading, preventing backflow of more polluted lakes into more pristine lakes, and lake aeration treatment. This report is divided between two pdfs, Part 1 and Part 2.

2018 Tree Order Form