Lake Report Cards

Nine lakes are sampled on a bi-weekly basis.  These lakes include North Floyd, Little Floyd, Big Detroit, Curfman, Sallie, Melissa, St. Clair, Munson, and Abbey.  Samples are collected at all lakes for total phosphorus and orthophosphates.  Phosphate is a limiting nutrient in freshwater ecosystems and plays a role in the growth of algae.  Some lakes are sampled for chlorophyll a.  Water clarity ratings are determined using a Secchi disk and values for pH, conductivity, dissolved oxygen, and temperature are measured from the surface to the lake bottom.   

Yearly Annual Water Quality Averages by Lake 1995-2011

*Note-  Not all lakes were sampled every year

Select a lake from the list below to view related data

Lake_Image_Map.jpg



Discover PRWD
I am a...

Upcoming Meetings and Events
16 July 2020
July 2020 Board Meeting
20 August 2020
August 2020 Board Meeting
10 September 2020
Public Hearing and September 2020 Meeting
15 October 2020
October 2020 Board Meeting
16 November 2020
North American Lake Management Society Conference

View All


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


View All


Recent Water Levels
Detroit 1334.64 ft
Last Updated: 7/7/2020
Floyd(s) 1354.8 ft
Last Updated: 5/4/2020


Melissa 1328.87 ft
Last Updated: 7/7/2020
Sallie 1329.77 ft
Last Updated: 7/7/2020

Connect with Us