Aquatic Invasive Plant Chemical Treatments

Notice is hereby given the Pelican River Watershed District is conducting an aquatic invasive species control project involving herbicide treatments of Curly-leaf pondweed and Flowering Rush infestations for lakes Big and Little Detroit, Curfman, Sallie, Melissa, and Muskrat.  

2020 Public notice for treatments

5/26/2020 NOTE:  The District has conducted two plant surveys over the past week, and unfortunately, the Curly Leaf Pondweed growth is unseasonably delayed due to the spring weather conditions.   In consulting with the MN DNR, they have reported similar conditions around the state.  Staff will be rechecking previously years' treatment areas on Wednesday, May 27, and will post the updated treatment maps on Thursday, May 28.  It is expected that 2020 treatments will be similar to 2019 treatment areas.

5/29/2020 NOTE: The District conducted its final surveys for Curly-Leaf Pondweed on Wednesday, May 27th. On Detroit Lake, the good news is the Curly-Leaf Pondweed growth is greatly reduced from previous years. For example, the treatment area near Holiday Inn has gone from 60 acres to 23 acres in 2020. There will be no treatments needed at the Long Bridge Marina, however we will treat approximately two acres near the South Shore Public access and one and a half acres on the North Shore of Curfman Lake.  

NOTICE: The District has scheduled treatments for Tuesday, June 2nd pending favorable weather conditions. It is recommended that irrigation using lake water in treated areas cease for five days after treatment in this area.

Landowner's may opt-out of treatments in front of their property by notifying the District in writing. All notifications must be received by Monday, June 1st, 2020.

Address all communication to:

                                                   Pelican River Watershed District
                                                   211 Holmes Street West, Suite 201
                                                   Detroit Lakes, MN 56501

2020 Treatment Map for Detroit & Curfman

Update for Sallie and Melissa 5/29/2020: No growth was observed on Lakes Sallie and Melissa, therefore no treatments will be conducted in 2020. The District will continue to monitor these lakes for growth in 2021 and treat as needed by implementing our Adaptive Management Plan.

Update for Muskrat Lake 5/29/2020: The District has applied for treatment permits from the DNR using a combination of Endothol and Diquat on a two acre area on the Southeast side of Muskrat Lake. The District is awaiting approval of this permit by June 1st. 

Pelican River Watershed District

Operations Continuation Plan to Minimize COVID-19 Spread

March 19, 2020 - Updated May 4, 2020

To our community and colleagues, we hope everyone is doing well in light of these unprecedented times and events related to the coronavirus (COVID-19) outbreak.  The safety and well-being of our employees and our shared communities are of utmost importance to all of us at the Pelican River Watershed District. For that reason, beginning March 19, 2020 we will be practicing social distancing by working remotely until further notice to do our part in slowing the spread of the coronavirus, or COVID-19. PRWD is following a government operations continuity plan that balances our government operations with the safety of our staff, our colleagues, and our community.

Pelican River Watershed District Proclamation and Declaration of Emergency

PRWD COVID-19 Continuity of Operations Plan

 What this Means

The Wells-Fargo Building was closed on March 19, 2020 and the PRWD's office will be closed to the public until at least May 18 2020 or longer per the Governor's instructionsThe District will continue its critical operations (projects, permits, monitoring, financial) during this emergency period.

 All meetings and contacts will be conducted via e-mail, phone, or web conferencing. While the physical location of the work has changed, PRWD staff's commitment to excellent and prompt customer service has not. We’ll continue working on our projects and issuing permits using the remote-work technology tools we have at our disposal to communicate and conduct meetings (conference calls, video-teleconferencing).

E-mail is the preferred method of initial contact.

Permit Program:

Monitoring Program:

General Inquiries:

Staff contacts are on the website at:

                Mail Address: 211 Holmes Street West, Suite 201, Detroit Lakes, MN 56501

                Phone: 218-846-0436

PERMITS. PRWD will continue to receive and process permits.  The most efficient contact point is  or if a specific point of contact is needed leave a message at 218-846-0436 and your call will be returned within 24-hrs. Given our small office staff, we will work diligently to provide responsive customer service. On-site visits may continue following social distancing guidelines, however this may change if conditions warrant. Use of photos is strongly encouraged.

Permit Application Materials and Information:

Submit permit information electronically.  Permitting materials, photos, plans, questions, and comments should be submitted electronically while the PRWD office is closed to the public. Permit application and review fees will still need to be mailed to the District office (see address above).   If electronic means are not available contact the office and we will provide further assistance.

Board of Managers meetings
The Board of Managers meetings will be conducted via teleconference or by other electronic means.  All details about Board of Managers meetings are available on our website at or can be requested at (including instructions for attending a meeting via teleconference) or at 218-846-0436 (leave a message).

Stay Connected
This is a fluid, fast-moving situation that may change tomorrow.  Check our website ( and Facebook (Pelican River Watershed District) for changes in our services and updates regarding office operations. Though our shared challenge ahead may be formidable, we remain committed to the community we serve.

District Work Plans

2020 PRWD Annual Operations Work Plan 

10-Year Monitoring Plan and Appendices

2020 Monitoring Work Plan

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Upcoming Meetings and Events
18 June 2020
June 2020 Board Meeting
24 June 2020
MAWD Summer Tour - Cancelled
16 July 2020
July 2020 Board Meeting
20 August 2020
August 2020 Board Meeting
10 September 2020
Public Hearing and September 2020 Meeting

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PRWD in the News

PRWD/MN DNR Zebra Mussel impact study

MPR News Story on PRWD Flowering Rush Project

Dan Gunderson, MPR News, visited Lake Sallie with Brent Alcott to discuss the success of the…

MnDNR begins ZM pilot project treatment

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Recent Water Levels
Detroit 1334.58 ft
Last Updated: 5/20/2020
Floyd(s) 1354.8 ft
Last Updated: 5/4/2020

Melissa 1328.893 ft
Last Updated: 5/20/2020
Sallie 1329.75 ft
Last Updated: 5/20/2020

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