This webpage discusses the potential impact of septic systems on water quality, highlighting the risks of untreated wastewater contaminating freshwater sources. Septic systems, commonly used in rural areas, can fail due to excessive water use, improper design, or lack of maintenance, leading to the release of pollutants such as bacteria, viruses, and excess nutrients into the environment. These pollutants can cause algae blooms, deplete oxygen levels, and harm aquatic life, ultimately affecting biodiversity in both freshwater and terrestrial ecosystems. Regular maintenance and responsible use of septic systems are crucial to preventing these environmental impacts and protecting Canada's freshwater resources.