Your bill is based on how much water passes through your meter -- so whether it’s used or wasted, you pay for every drop. That’s why it is so important to use water wisely. If you are noticing abnormally high usage you can try and troubleshoot yourself by checking the following:
Check you water meter (usually located in the front yard near the road in the utility right-of-way). There is a red triangle or circle that indicates low flow. If the low flow indicator is spinning then there is water flowing through the meter. If all of the water in the house is off then the low flow detector should not be turning.
Check all of the toilets. Put food coloring in the tank of the toilet then check the bowl. If discolored water runs into the bowl that indicate that the flapper might not be sealing properly.
Check faucets, toilets outside hose spigots, to make sure that there is nothing running or dripping.
Look at the read dates on your bill and determine if you had done any landscaping, watering, pressure washing etc... within those dates.