Frequently Asked Questions - Billing
There can be many reasons for this including higher usage, and leaks. You may simply be using more water for gardens, car washes, pools, etc.
Please check to make sure your hoses, faucets and toilets are not leaking. Even if there are no leaks, check to make sure no water is running, especially your toilets. A running toilet can use over 1,000 gallons per day.