Just for all the beer lovers out there, google it. In the seventies, local chemical plant, at dedication, had drinking water on head table, which actually was effluent form sewage plant. Town near us puts waste water in river about five miles ABOVE their water intake. Another town, actually several, put their waste water in river about 20 miles upstream from where some draw drinking water. Recycling at it's best! On last trip to New Orleans, saw a sign saying that water in river had already been thru hundreds of sewer plants. Guess that why N.O. gets such high marks for the taste of it's water.