Maybe usage is how much water enters your household, and consumption is that minus how much exits your household? in other words, water that flows into your bathtub (for example) and then back into the sewers is used but not consumed, whereas water that goes into your teapot and turns into tea which you drink is both used and consumed.
But that is 100% guesswork with no factual basis whatsoever. Honestly, I would recommend calling the city and asking. If there isn't a phone number on the bill itself, you could call 311 and get transferred.
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Date: 2009-05-19 03:18 pm (UTC)But that is 100% guesswork with no factual basis whatsoever. Honestly, I would recommend calling the city and asking. If there isn't a phone number on the bill itself, you could call 311 and get transferred.