They are thieves they are charging me over $500.00...

They are thieves they are charging me over $500.00 dollars for water bill thy say I used over 80,000 gallons of water last month . That amount is like 8 10,000 gallon swimming pools . I was told I must of had a leak inside if that's the case my house would be damaged beyond repair. Then I was told someone must have left a hose open the property would have been a swamp for a long time. I have been checking my bills and there are a lot of inconsistencies on electric and water on all my bills.