This scam is all wet.

People saying they're with the City of Casper are calling residents demanding payment of delinquent water bills with a Money Gram or their water will be shut off within the hour, according to a news release Tuesday.

"“The City of Casper will never demand a Money Gram payment over the phone,” said customer service supervisor Carla Mills-Laatsch. “We do not use this method of payment.”

Instead, the city gives two notices before cutting off service, Mill-Laatsch said.

"The first notice is mailed," she said. "The second is an automated phone call if we have the customer’s phone number on file.”

The Casper Police Department is investigating the scam.

Customers can call the city at 235-8400 to verify whether their account is delinquent.

This scam comes on the heels of recent frauds in which people claim they are with the Internal Revenue Service and tell people they owe money and need to pay up or else risk arrest and imprisonment.