- Calcium Data- Why it matters in fresh water—and the risks of low levels 
- Phosphorus Data- Phosphorus is an essential nutrient for plants and animals. However, excessive phosphorus in surface water can cause explosive growth of aquatic … 
- Secchi Readings (Clarity)- If Secchi depth is measured in a lake for numerous consecutive years, the data can be analyzed for water quality trends. … 
- Safe Soaps- Fact: Even if soap (liquid or bar) is biodegradable, it is not safe to use directly in the river, lake … 
- How to Report Blue-Green Algae- If you wish to report it, take a photo and contact our local Ministry of Environment Conservation and Parks (MECP) Office … 
- FACT SHEET ABOUT BLUE GREEN ALGAE- Certain factors must occur for a blue-green algal bloom to form. High surface water temperatures, large amounts of sunlight and … 

