How much is your water bill?

At some point my water bill has risen to £70 a month, which seems absurdly high, particularly given the news stories today about average bills rising from £40 to £50 per month.

Our water usage consists of 2-3 showers a day, one 4-6 inch bath (kids), a bit of cooking, washing up, drinking, etc., and a dishwasher run about 4-5 times a week. Is that really £70 worth of water?? I'm scratching my head a bit.

Edit to clarify - this is the total bill from the water company so I assume includes sewerage as well.