In recent weeks, residents have reported receiving phone calls from people claiming to be employees from Gwinnett County’s water treatment lab, offering to conduct water testing inside their homes.

While the Department of Water Resources tests the County’s water quality frequently, the County does not send employees to test tap water inside customers’ homes.
If anyone claiming to be a Gwinnett County employee asks to take water samples from inside your home, do not let them in. As always, if you feel unsafe or if someone is trying to break into your home, call 911.

Residents may call Water Resources’ 24-hour dispatch at 678.376.7000 with questions or concerns.

Gwinnett County’s source of water is Lake Lanier. It is treated at two water production plants, Shoal Creek Filter Plant and Lanier Filter Plant. These two plants provide more than 70 million gallons of drinking water to Gwinnett’s nearly one million residents.

The water is monitored and tested regularly to meet all federal and state regulations.

The tests are conducted at the Department of Water Resources Environmental Laboratory. The laboratory also tests water in some portion of the distribution system nearly every day, visiting more than 800 sites in the county at least four times a year.