Long Term Environmental Monitoring

What is Long Term Environmental Monitoring?

Environmental monitoring is essential for properly managing our natural resources. Monitoring provides us with scientifically-based, quantitative information that enables us to make environmentally sound, informed planning decisions and to set appropriate goals for environmental management and rehabilitation.

In 2005, Conservation Halton implemented the Long Term Environmental Monitoring Program (LEMP for short). This program ensures that monitoring is completed in a consistent manner over an extended period of time. It also provides a comprehensive understanding of the structure and function of local ecosystems, which is necessary for assessing the long-term health of the watershed. 

Designed to monitor species, ecosystems, and changes in the watershed over time, the Long Term Environmental Monitoring Program helps ensure that Conservation Halton’s purpose to “protect our communities and conserve our natural environment through planning, education and recreation" is being fulfilled. 

Monitoring results

Conservation Haltons monitoring focuses on different watershed groupings each year with sites being revisited on an annual, biannual or 5-year cycle depending on the parameter monitored. The monitoring provides important information on the health of our ecological communities at a specific point in time and when monitoring is continued over the long-term, trends develop. It is these trends that help us to understand if a species and their habitats may be improving or declining in the watershed. As these species act as early warning signs, this information helps us to reduce impacts to humans and explore new ways to conserve our natural environment while working with partners to create sustainable communities and recreation.

Monitoring results are provided in interactive story maps that outline the locations of monitoring stations, the results and any noticeable trends in the parameter monitored. To explore the health of the Conservation Halton watershed and the ecological communities near you click on the story maps below.


At the end of the five-year cycle, a complete watershed report card is published on the health of the watershed. Click the button below for more.

Conservation Halton Ecological Monitoring Protocol

Conservation Halton’s Ecological Monitoring Protocols document provides guidance on preferred protocols and information required for submission to Conservation Halton, for monitoring projects that are ongoing in the watershed and are typically related to the plan review process.

Click here to see Conservation Halton’s Ecological Monitoring Protocol.