What are two ways chemicals from households can get into wastewater?

1. Through the disposal of cleaning products, such as bleach, ammonia, and drain cleaners, down sinks or toilets. These chemicals can then be carried through the sewer system and into wastewater treatment plants.

2. Through the disposal of pharmaceuticals, personal care products, and other chemicals down drains. These substances can leach into waterways, either directly or through septic systems, and eventually make their way into wastewater systems.