Lake Partner Program – OVERVIEW

  • For the most current sampling results (2015), click here…
  • For LPP contact info, see end of this post
NEW June 2016 – FOCA and the Ontario Ministry of Environment and Climate Change are pleased to release the Lake Partner Program Report Card.

This new Report consists of the following three key components:

  • LakePartnerReportCard2015 FINAL coverBackground information on Ontario’s Inland Lakes, and the Lake Partner Program
  • A description and summary of each of the three water quality indicators measured
    as part of the Lake Partner Program: Total Phosphorus, Calcium, and Water Clarity.
    Together, they provide a snapshot of the state of Ontario’s lakes.
  • Access to useful tools and other web-based information for citizen scientists and
    lake stewards.

Download the full Report here (PDF, 16 pages)


FOCA has partnered for many years with the Ministry of the Environment (now MOECC) on volunteer water-quality monitoring programs.

The goal of the Lake Partner Program is to better understand and protect the quality of Ontario’s inland lakes by involving citizens in a volunteer-based water quality monitoring program.

The Lake Partner Program is a province-wide, volunteer-based, water-quality monitoring program. Volunteers collect total phosphorus samples and make monthly water clarity observations on their lakes. This information will allow the early detection of changes in the nutrient status and/or the water clarity of the lake due to the impacts of shoreline development, climate change and other stresses.

FOCA and DESC/MOECC staff met at DESC in June 2015. Pictured, from left to right:

Meeting at Dorset (L to R): Jenny Winters (Supervisor, MOECC Environmental Biomonitoring Section, MOECC Toronto), Terry Rees (FOCA), Christie Davies,(FOCA Lake Partner Assistant Coordinator, DESC) Anna Desellas (MOECC Inland Lakes Scientist, DESC), Rachael Fletcher (Manager, Environmental Biomonitoring Section, MOECC Toronto), Keith Somers (MOECC Inland Lakes Scientist, DESC Site Supervisor), Andrew Paterson (MOECC Inland Lakes Scientist, DESC), Deanna Panitz (FOCA Programs Coordinator) Steve Kerr (FOCA Board of Directors)Jenny Winters (Supervisor, MOECC Environmental Biomonitoring Section, MOECC Toronto), Terry Rees (FOCA), Christie Davies,(FOCA Lake Partner Assistant Coordinator, DESC) Anna Desellas (MOECC Inland Lakes Scientist, DESC), Rachael Fletcher (Manager, Environmental Biomonitoring Section, MOECC Toronto), Keith Somers (MOECC Inland Lakes Scientist, DESC Site Supervisor), Andrew Paterson (MOECC Inland Lakes Scientist, DESC), Deanna Panitz (FOCA Programs Coordinator), Steve Kerr (FOCA Board of Directors).

Volunteer involvement requires the collection of one water sample for total phosphorus in May for lakes on the Canadian Shield and one sample each month (May-Oct) for lakes that are off the shield. These samples are returned postage paid to the Dorset Environmental Science Centre for analysis. In addition, volunteers are asked to make a minimum of 6 (monthly) water clarity observations using a Secchi disk. These observations are mailed to Dorset at the end of the summer.

Why Sample?

Secchi Disc High levels of phosphorus can lead to algal blooms and in some cases affect the habitat of cold water fish such as lake trout. By sampling the total phosphorus each year it is possible to detect a change in the nutrient status of your lake. It is important to note that several years of data must be collected to observe the normal, between-year-differences before a trend can be identified.

While total phosphorus concentrations are the best way to describe the nutrient status of your lake, regular Secchi depths can also help to identify changes in water clarity that are not linked to nutrient status (zebra mussels, climate change, etc.).

Download the LPP registration form here.

DESC Lab 2012About the Dorset Environmental Science Centre (DESC)

The DESC began its scientific activities in 1975. Since then, the centre has grown in size and scope and investigates a wide variety of water issues. The study area is comprised of a collection of lake basins in south-central Ontario that have varying amounts of cottage development. The centre’s primary focus is on integrated environmental monitoring, experimentation and data recording.  DESC is the home of the Lake Partner Program.


For more information, email the FOCA office at programs@foca.on.ca. Or, visit the website of the Lake Partner Program of the Ministry of the Environment at http://desc.ca/programs/LPP, or contact them here:

Dorset Environmental Science Centre
P.O. Box 39
1026 Bellwood Acres Rd.
Dorset, ON  P0A 1E0

Tel (Toll Free – Ontario Only): 1-800-470-8322
Tel (Outside Ontario): 1-705-766-1294
E-mail: lakepartner@ontario.ca

Tracy LoganLake Partner Program – OVERVIEW