A 1” pipe? Oh geez. Thats not that much water. Go by any concrete mixing plant and they will be spewing wash water at significantly higher volumes, usually in urban settings near towns and local drinking water sources.
This has to be the dumbest article I’ve ever read.
Laughing at the H2S comment. Wet, H2S makes acid. Thats why the gas kills you. Dissolved, it is mildly good for plants in alkaline soil.
At least talk about trace elements of benzene or NORM.