Campbell Creek Sediment Survey

campbell - sediment 5-12-04.JPG


Campbell Creek is a closely monitored part of the watershed. The creek goes through farm land and is a large contributor of nutrients to lower portions of the watershed at certain times of the year, in particular North Floyd. In 2007 a study was conducted to further evaluate the nutrients and sediments carried by the creek.


2007 Campbell Creek Special Sediment Survey


 

St. Clair Alum Treatment


A Further Evaluation

Introduction

In October 1998, the Pelican River Watershed District applied alum (aluminum sulfate) to Lake St. Clair to reduce exports of phosphorus to Ditch 14 and beyond.  This treatment was part of a phased approach intended to cope with unacceptable phosphorus levels in Lake Sallie, (about 3 miles downstream from St. Clair).  26 months after the alum application, in February, 2001, it was reported that total phosphorus concentrations at the outlet of St. Clair were decreased by 58% and export loads were decreased by about 51%.  In addition the water quality in Lake St. Clair exhibited some improvement, and there was some evidence that downstream areas experienced reduced phosphorus conditions.

It is now a little more than 50 months since the treatment; here is a further update of the project.

 

DATA COLLECTION

Prior to the alum treatment, over a period of 6 years, there had been about 300 observations at St. Clair’s outlet, including 207 TP measurements.  In the 4 years since the alum treatment there have been approximately 175 observations including 140 TP and OP samples.  A similar record is available for the Ditch 14 outlet, about 1 mile downstream.  In-lake samples have been taken on a twice-monthly basis during the summer, since the treatment.


IN-LAKE CONDITIONS

While we have few pre-treatment in-lake observations, at this point there is no reason to believe that there have been remarkable changes since the treatment.  Secchi readings vary from time to time, but seasonal averages seem to be fairly stable.  A case can be made that in-lake total phosphorus readings have been climbing, but there have been no readings that approach those which we have immediately before the treatment, and the averages are quite a bit lower.  Also, ortho-phosphorus readings which were in excess of 100 ppb in the summer of 1998, have since been consistently below 25ppb, and in the last three years have been between 10 and 17.

 

LOADING FROM ST. CLAIR

The specific and stated goal of the St. Clair Alum treatment was to reduce down-stream discharges associated with internal loadings of phosphorus from bottom sediments contained in Lake St. Clair.  Evaluation after the first two years concluded that the goal of reducing downstream loadings was achieved.

In the 2001 report, a reduction of 50 percent of total phosphorus, and as much as 75% of orthophosphate was claimed.  Also it was noted that the loading peaks in late winter and late summer had disappeared.

St. Clair Outlet

 

Discharge mils. cf

TP
lbs

OP
lbs

1995

158

1005

 

1996

131

1152

 

1997

206

1072

 

1998

181

1162

339

1999

162

586

104

2000

141

353

83

2001

93

360

93

2002

60

204

51

 

There is little doubt that this pattern has continued through the next two years.  Average 1999-2002 phosphorus loads passing the St. Clair outlet are considerably less than the pre-treatment period.  In 2002 for example, we estimate that only 200 pounds

of phosphorus was discharged from St. Clair, in comparison with an average of 900 pounds in the 1995-1998 period.  While data are not as complete for orthophosphorus (prior to treatment) there is no doubt that it is lower by a factor of one-half to two-thirds.

Flow-weighted mean concentrations of phosphorus, another indicator of St. Clair outlet conditions, also show dramatic reductions.  And it is fairly clear that the bimodal peaks of phosphorus concentrations also have disappeared (see below).

There is one caveat to drawing these conclusions.  Since the alum treatment discharge has dropped significantly, and a case could be made that this is an important factor.  However, discharge levels do not explain the reductions in in-lake phosphorus, especially orthophosphate.  

 

DOWNSTREAM EFFECTS

In the 2001 Evaluation it was noted that the St. Clair alum treatment may also have had some downstream impacts.  Both flow-weighted mean concentrations of phosphorus and phosphorus loadings were significantly lessened at the Ditch 14 outlet to the Pelican River, about 1 ½ mile downstream.

That pattern continued in 2001 and 2002.  Flow weighted mean concentrations of phosphorus prior to treatment were in excess of 100 milligrams per liter, and since treatment they have always been less than 60.  Similarly annual TP loadings, formerly in the 1500 to 2000 pound range, have been consistently around 500 pounds.  Much of this improvement has been as a result of the elimination of the spring peak (see chart).



Of course, it should be remembered that this was a period of lower discharges, and we do not have enough years prior to treatment to adequately assess that influence. -- R. Hecock

 

Wastewater Treatment and Drinking Water Supply Alternatives Study



February 2008





Lake Sallie and Melissa Chain of Lakes

 

All Lake Sallie-Lake Melissa Figures Appendix A.pdf Appendix B.pdf Appendix C.pdf
FINAL Report Text Index Map Service Area 1 Service Area 2
Service Area 3 Service Area 4 Service Area 5 Service Area 6
Service Area 7 Service Area 8 Service Area 9 Service Area 10
Service Area 11 Service Area 12 tables.pdf  


 

Floyd Lake Chain of Lakes

All Floyd-Little Floyd Lake Figures Appendix A.pdf Appendix B.pdf Appendix C.pdf
FINAL Report Text Index Map Service Area 1 Service Area 2
Service Area 3 Service Area 4 Service Area 5 Service Area 6
Service Area 7 Service Area 8 Service Area 9 tables.pdf

Downtown Detroit Lakes Water Quality Treatment Assessment

Wenck Study January 11, 2007

The realignment of US Hwy 10 in Detroit Lakes will allow for new development on a portion of the old highway alignment within the downtown area.  Stormwater management (specifically water quality treatment) within this area is of great importance to the Pelican River Watershed District and the City of Detroit Lakes.  Therefore the PRWD requested Wenck staff to assess the water quality treatment efficiency of the previously constructed PRWD ponds and the proposed TH 10 Phase 3 ponds.  The result of the assessment will indicate whether additional treatment is required for properties that develop within this area.

see full study

Past Studies and Reports

The District maintains a database of all studies that have been conducted within its boundaries.  Those studies are listed below.  If you are interested in, please contact us and we can send an electronic copy of the study to you.

A.W. Research Laboratories. 1995. Proposal for a Fall Surveillance Overflight of the Pelican River Watershed District
A.W. Research Laboratories. 1995. Proposal for Mapping Sedimentation in Lake Sallie
A.W. Research Laboratories. 1996. Proposal for Locating Ground Water in the Wetland West of Detroit Lake
A.W. Research Laboratories. 1996. Proposal for the Aerial Lakeshore Analysis of Floyd Lake
A.W. Research Laboratories. 1996. Proposal for the Septic/Point Source Detection Overflight Floyd and Little Floyd Lakes
Barr Engineering Inc. 1998. A Study of the Contribution of Groundwater to Phosphorous Loadings for Selected Lakes in the Pelican River Watershed
Becker County COLA. 2003. Lake Water Quality Management Report
Becker County Overall Ecomonic Development Plan. 1965
Hecock, R. 1993. Diagnostic and Feasibility Study and Management Alternatives for Lake Sallie and Detroit Lake
Houston Engineering Inc. 1997. Proposal to Provide Engineering Services for Water and Sanitary Sewer Improvements along Big Floyd Lake to Detroit Township
Instrumental Research Inc. 1983. Proposal for Lake Assessment
Instrumental Research Inc. 1983. Watershed Lake Assessment
Instrumental Research Inc. 1984. Aeration Proposal to the Pelican River Watershed District
Instrumental Research Inc. 1985. Nutrient Retention of Harvested Aquatic Vegetation from Lakes Sallie and Melissa
Iverson, Steven W. 1992. The Pelican River Navigation Restoration Project
Johnson, Kirk A. 1996. Butomus umellatus in Becker County: An Investigation into the Control of an Exotic Species
K-V Associates Inc. 1980. Septic Leachate Survey, Detroit Lakes, MN 
Larson Peterson and Associates. 1987. 1987 Monitoring Plan: Lakes Sallie and Detroit
Larson Peterson and Associates. 1989. Clean Lakes Program: In Lake Monitoring Lake Sallie
Larson Peterson and Associates. 1990. Clean Lakes Study of Lakes Sallie and Detroit: 1988 and 1989 Data Collection Summary
Larson Peterson and Associates. 1992. Diagnostic Feasibility Study: Management Alternatives for Lakes Sallie and Detroit
Larson Peterson and Associates. 1998. 1998 Monitoring Plan: Lakes Sallie and Detroit
Larson Peterson and Associates. 1998. 1998 Quality Assurance Plan: Lakes Sallie and Detroit
Larson Peterson and Associates. 2001 Diagnostic Management Alternatives for Lake Sallie and Detroit Lake
Larson Peterson and Associates. 2001. Stormwater Drainage Plan: Storm Sewer Drainage Districts, Detroit Lakes, MN
Larson, Peterson, and Ulteig. 2004. Wastewater Treatment Facility Effluent Discharge Feasibility Study; City of Detroit Lakes Preliminary Engineering Report
Larson, Steven P., Mark S. Larson, and Ronald J. Wolf, USGS. 1975. Digital Models of a glacial Outwash Aquifer in the Pearl-Sallie Lakes Area, West-Central Minnesota.
Lee, David R. 1971. Septic Tank Nutrients in Groundwater Entering Lake Sallie
Lee, David R. 1976. The Role of Groundwater in Eutrophication of Lkes in Glacial Ouwash Terrain. Int. J. Speleol. 8. 117-126
McComas, Steve and Stuckert, J. Blue Water Science. 1999. Plant Harvesting and Zooplankton Dynamics in Muskrate Lake for 1998
McComas, Steve, Hecock, R., Nustad, R., Wilson, B. 1996. An Updated Diagnostic and Feasibility Study for Lake Sallie, Detroit Lakes, MN  
McComas, Steve. Blue Water Science. 1997. Plant Harvesting and Zooplankton Dynamic in Muskrat Lake, Status Report
McComas, Steve. Blue Water Science. 1999. Pelican River Watershed District Aquatic Plant Harvesting Program Evaluation
McComas, Steve. Blue Water Science. 1999. Wetland Aeration for Phoshorous Reduction Results of Ditch 14
McComas, Steve. Blue Water Science. 2001. Plant Harvest and Water Quality Dynamics in Muskrat lake for 2000
McComas, Steve. Blue Water Science. 2001. Wetland Dich Aeration for Phosphorous Inactivation in Ditch 14
McComas, Steve. Blue Water Science. 2002. Impacts of Ditch Aeration on Bioavailable Phoshorous in Ditch 14
McComas, Steve. Blue Water Science. Pelican River Watershed District Aquatic Plant Harvesting Program Evaluation
Miller, R.T. 1982 Appraisal of the Pelican River Sand-Plain Aquifer, Western Minnesota. USGS Open-File Report 82-347
MPCA and PRWD. 2002. Water Quality Assessment of the Upper Pelican River Watershed Clean Water Partnership Program
Neel, Joe K. 1973. Weed Harvest and Lake Nutrient Dynamics
Neel, Joe K. 1978. Impact of Special Phosphorus Removal Procedures in the Upper Pelican River Watershed, 1977-1978
Neel, Joe K. 1981. Impact of Special Phosphorus Removal Procedures in the Upper Pelican River Watershed, 1977-1980
Pelican River Watershed District and City of Detroit Lakes. 1971. The Effectiveness of Advanced Waste Treatment Methods and the Recovery Rate of an Enriched Lake following Nutrient Cut-Off
Pelican River Watershed District, Bonestroo, Rosene, Anderlik & Associates. 1998. Campbell Creek Comprehensive Plan
Pelican River Watershed District, Bonestroo, Rosene, Anderlik & Associates. 1998. Campbell Creek Ditch Inventory
Pelican River Watershed District. 1986. Water Resource Preservation: Case Statement
Rieke Carrol Muller and Associates Inc. 1978. Water Pollution Control Factilities Report for Lakeview Township, Becker County, MN
Rieke Carrol Muller and Associates Inc. 1981. Wastewater Treatment Facilities Plan Summary Report
Rieke Carrol Muller and Associates Inc. 1984. Pacility Pland Addendum Report, Lakeview Township Evaluation of Land Application by Spray Irrigation
Ulteig Engineers Inc. 2009. North Side Stormwater Treatment Study 
Wenck Associates Inc. 1998. Wastewater Treatment and Drinking Water Supply Alternatives; Lake Sallie and Melissa Chain of Lakes
Wenck Associates Inc. 2006. Ditch 14 Hydraulic and Water Quality Study
Wenck Associates Inc. 2008. Wasterwater Treatment and Drinking Watter Supply Alternative Analysis; Floyd Lake Chain of Lakes
Wenck Associates Inc. 2010. Lakeview Township Community Assessment Report
Wenck Associates Inc. 2010. Pelican River Watershed District AIS Control Project LMP-01; Project Plan Engineer's Report
Widseth Smith Nolting. 1997. A Proposal to Detroit Township to Provide Engineering Services for a Wastewater Facility Plan and Water Feasibility Study
Widseth Smith Nolting. 1997. Water System Feasibility Study for Big Floyd Lake, Detroit Township, MN
Widseth Smith Nolting. 1998. Wastewater Facility Plan for Big Floyd Lake, Detroit Township, MN 
Winterstein, Thomas A. 2007. Estimated Ground-Water Use in Becker, Clay, Grant, Ottertail, and Wilkin Counties, MN, for 2030 and 2050
Madsen, J.D, et. al. 2012. Ecology and Management of Flowering Rush (Butomus umbellatus) in the Detroit Lakes, Minnesota
Turnage, G. et.al. 2017. The Effects Diquat on Mixed Stands of Flowering Rush and Hardstem Bulrush in Lake Sallie, Minnesota 2016 - Interm Report
Turnage, G. et.all. 2016. The Effects Diquat on Mixed Stands of Flowering Rush and Hardstem Bulrush in Lake Sallie, Minnesota 2015 - Interm Report
Madsen, J.D, et. al. 2014. Management of Flowering Rush Using the Contact Herbicide Diquate in Detroit Lakes, Minnesots 2013
Madsen, J.D. & Turnage, G. 2015. Management of Flowering Rush Using the Contact Herbicide Diquat in Detroit Lakes, Minnesots 2014
Turnage, G. et.al. 2016. Adaptive Management of Flowering Rush Using the Contact Herbicide Diquat in Detroit Lakes, Minnesota 2015
Madsen, J.D.et.at. 2011. Flowering Rush Management Summary.
Marko, Michelle D. et.al. 2011 Ecolody and Phenology of Flowering Rush in the Detroit Lakes Chain, Minnesota
Poovey et. al. Evaluation of Systemic Aquatic Herbicides for Controlling Two Population of Submersed Flowering Rush
Poovey et. al. Evaluation of Contact Aquatic Herbicides for Controlling Two Population of Submersed Flowering Rush
Madsen, J.D. et.al. Management of Flowering rush in Detroit Lakes, MN. Journal of Aquatic Plant Management. 54: 61-87
Madsen, J.D. et.al. Efficacy of sombination of diquat or triclopyr with fluridone for control of flowering rush. Journal of Aquatic Plant Management. 54: 68-71


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Recent Water Levels
Detroit 1333.9 ft
Last Updated: 10/10/2018
Floyd(s) 1354.6 ft
Last Updated: 10/10/2018


Melissa 1328.2 ft
Last Updated: 10/10/2018
Sallie 1330.2 ft
Last Updated: 9/28/2018

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