WTF? I live in central Illinois where the water comes from a small lake that is fed by a small river. I won't eat fish out of the lake, and won't drink straight tapwater, but that is because of the chlorine. Even with all of the farmland runoff the city manages to keep the nitrates down and generally gets a high ranking for water quality from the state.
The chlorine is only a problem once in awhile, but a faucet mounted filter takes care of that.