Agricultural practices significantly impact water quality through the introduction of pollutants such as fertilizers and pesticides. These chemicals can lead to eutrophication, creating hypoxic conditions that harm aquatic ecosystems. Additionally, runoff from agricultural lands can introduce pathogens and heavy metals into water sources, posing risks to human health. Implementing sustainable practices, like cover cropping and reduced chemical usage, is essential for minimizing these impacts and maintaining clean water systems, which are vital for both wildlife and human communities.