Lake Monitoring Program

There are 27 lakes which have been identified as have high value, whether economical or environmental, and these lakes are monitored on a rotating basis.  PRWD collects water chemistry samples and lake profile data on the selected lakes to understand overall lake health and trends.  Samples are collected on a bi-weekly basis May through September. 

Field Data includes:

• Temperature
• pH
• Dissolved Oxygen
• Conductivity
• Water Clarity (Secchi Depth)

Chemistry Data includes:

• Total Phosphorus
• Orthophosphate (Dissolved)
• Chlorophyll-a

Lake assessments are done each year for lakes that are monitored and are included in the Annual Monitoring Report.

2017 Water Quality Monitoring Report

2018 Water Quality Monitoring Report

Specific Lake characteristics and summaries are in the link below.

Lake Level Monitoring

Lake level in recorded by a staff gage located throughout the District.  Gages are read on a bi-weekly basis.  Water levels for Detroit, Melissa, Sallie, and the Floyd Lake chain are updated bi-weekly on the tab to the right.

Monitoring Plan

Each year, the District prepares a plan that identifies the monitoring location and goals for the program.  The current monitoring plan can be viewed below.

2019 Water Quality Monitoring Plan