ppine wrote:
Third World countries have tremendous health problems because the water and waste streams are not entirely separated. That is exactly what we are talking about here. Bad practices by people that don't know or don't care about fecal contamnation of fresh water.
I was teaching some high school kids about water quality last week on the Carson River. Fecal coliform bacteria is one of the main parameters we measure. At 5 ppm no problem At 100 ppm it can be a big problem. Use caution. People are stupid.
That's what a lot of folks don't understand. Our immune systems routinely deal with LOW levels of bacteria, the trouble begins when levels are so high they overwhelm the capabilities of even a healthy immune system.
It makes sense to err on the side of caution.