A new report finds that the city's high-tech automatic water meters are hitting customers with some huge and unexplained bills.
The report by Public Advocate Bill de Blasio says the new meters "can result in inaccurate readings that overcharge residents, sometimes by tens of thousands of dollars.''
De Blasio found some bills were as high as $50,000.
He said in some cases customers were required to pay their bills while they appealed.
The report recommended changes to the billing and collection system.
The Department of Environmental Protection said it has seen no significant change in the number of bill disputes.
Get the latest from NBC 4 New York anytime, anywhere. Follow us on Twitter, Facebook and Google+. Sign up for email newsletters here. Get breaking news delivered right to your phone -- just text NYBREAKING to 639710. For more info, text HELP. To end, text STOP. Message and data rates may apply.