Baltimore City Department of Public Works Director, Rudolph S. Chow, P.E., is advising Baltimore metropolitan water customers to be aware that private individuals are making the rounds to either scam the public, or to sell them unnecessary water filtration systems. Postcards and telephone calls have been sent to area residents asking for them to make an appointment to discuss their water quality. These are not from the Baltimore City Department of Public Works and should be ignored. The name of the company is not on these postcards, some of which are entitled "WATER UPDATE". In the past, Public Works impostors, posing as employees, have mislead citizens into letting them inside their homes by saying that they are checking on low water pressure, leaks or other water-related problems. Once inside a home, they distract the resident, steal items of opportunity and then flee. Citizens should be aware that imposters often wear what appears to be “official looking” clothing. These cards and calls may also be a way to gain entry into homes in order to steal. Citizens should remember the following: No Public Works employee will ever come to your home unless you have requested assistance and an appointment has been made. - Department of Public Works employees are not authorized to enter your home without your permission. - Always ask to see a Baltimore City employee identification card which includes a photograph. - Report any and all suspicious activity to the Police Department by dialing 911 immediately. For non-emergency questions about water related work, Baltimore City residents may call 311. Outside the City, please call 410-396-5352.