The City of Hamilton is warning residents about a door-to-door scam involving people claiming to work for the city.

In the past couple weeks there have been four separate complaints from residents. A few homeowners complained that someone visited them, asking to test their water for lead.

In one case, when the woman refused to let the person in, he told the homeowner she faced a $100 fine. In another case, a person claiming to be a city worker called a resident asking about garbage. The person later came to the home, but refused to provide a city I.D..

City officials note that any city worker sent to a home must have a city identification card as well as a City of Hamilton uniform.

"We just want to remind people that if city workers come to your door, they'll be wearing a city vest or hardhat or uniform," said Kelly Anderson, communications officer with the Public Works Department. "But we don't typically go door to door."

Anderson says property owners who are approached by unsolicited contractors or people claiming to be affiliated with the city should report the incident to Hamilton Police or the City at 905-546-CITY (2489).