What it is

Wastewater treatment effluent or discharge is the final product from a wastewater treatment plant. Because of the Federal Clean Water Act, the requirements for the cleanliness of the water is set on a plant by plant basis determined by the National Pollutant Discharge Elimination System (NPDES).

What's in it

Effluent is generally clear although not safe for drinking. While the technology is available to sanitize the water out of a wastewater treatment plant enough to become drinking water it hasn't put into effect in any actual treatment plants.