“Maintenance activities” have caused some residents in Duluth, Peachtree Corners and Norcross to see discolored water coming from their taps, the Gwinnett County Department of Water Resources said.

While it may look funky, the water is safe and “meets all drinking water standards,” the department said. The maintenance “stirred up sediment,” which caused the discoloration. The department has been clearing main water distribution lines, but some areas may not have used enough water to clear the lines, leading to the discolored water.

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Anyone experiencing discoloration should run water from an outdoor faucet for five minutes, the department said. If the discoloration persists, customers should call the water department at 678-376-7000 or email dwrdispatch@gwinnettcounty.com. The department can perform additional flushing and remove sediment from water lines.

If there is water in your hot water line but not your cold water line, you may need to flush your hot water tank, the department said. This can be done by running hot water faucets until the water isn’t hot, or by draining the tank entirely.

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