Dang, snowave, that bill sounds terrible, you absolutely need to check things out, as BostonBob and several others have stated. My bills, for my house, for just myself and my 10-lb. dog, plus what outside watering I do, via mostly soaker hose on the trees, is $37-38/month. And $25 of that is just for the meter, whatever else is the water usage. It's less than that for my rental, which is behind my house, and they are a family of 6, with virtually no outside watering. I do have to replace the faucet seats in my bathtub, I can't even turn off the faucets tightly enough right now to make it quit leaking, which is a horrible waste of water. I know how, I've just gotta do it. Even with that slow leak, my bill is only a third of yours. Please do some checking.
When I first moved up here, over 31 years ago, the water bill was a flat rate of $60 per year. Then, they put in the meters, and the rest is history. Oh well, I can't imagine living anywhere else......