My family owns a civil engineering company that deals with wastewater management.<p>A lot of it is treated with bacterial vats, chemicals, and UV, and then run back into local tributaries, because while it&#x27;s safe for the environment, it isn&#x27;t quite safe for human consumption.<p>A glass or two won&#x27;t hurt you, but I wouldn&#x27;t want to drink it regularly, mostly due to the cocktail of pharmaceuticals that can&#x27;t be filtered.<p>A lot of that water is also used to irrigate large tracks of land not used for food. Many golf courses use this method, and sometime big pipes just run through forests spraying treated water onto drought-prone areas.<p>Once you get past the &quot;ick&quot; factor, waste water management is actually pretty cool.