Conservation Authorities have established networks of regional environmental monitoring stations with data extending back several decades. These data sets can be helpful to establish baseline stream health indicators for environmental effects monitoring programs and assess trends over time. An example of the data collected at these monitoring stations by [https://trca.ca/watershed-planning-reporting/ TRCA's Watershed Planning and Ecosystem Science team] can be seen in the image above depicting 5-year median concentrations of chloride found in the CA's watershed. | Conservation Authorities have established networks of regional environmental monitoring stations with data extending back several decades. These data sets can be helpful to establish baseline stream health indicators for environmental effects monitoring programs and assess trends over time. An example of the data collected at these monitoring stations by [https://trca.ca/watershed-planning-reporting/ TRCA's Watershed Planning and Ecosystem Science team] can be seen in the image above depicting 5-year median concentrations of chloride found in the CA's watershed. |