1Use fewer chemicals to clean your home. It's an easy switch that makes a big difference. Using toxic chemicals like bleach and ammonia to clean your home is not only bad for the water supply, it's not necessary. Natural cleaners are just as effective at getting the house clean, and you don't have to worry that you're contributing to water pollution when you use them.
The Environmental Protection Agency (EPA) provides a list of cleaning products (as well as a variety of other products) that are considered "green," meaning they won't pollute the water supply. See epa.gov/greenerproducts.[1]
Common household supplies like white vinegar and baking soda can be used for everything from washing windows to scrubbing bathroom tiles, and they're completely nontoxic.