people should own some of the responsibility
You ever been to NY?
Actually, the reason I was told that we don't need filtering plants was that our water is still pristene compared to most of the country. Our water comes from reseroirs upstate ny, in the catskills mountains. Beautiful country up there. The parasites we do have seem to be bareable. I've never heard a case of visitors getting a case of motezuma's revenge while visiting times square.