The City of Monroe is experiencing mild discoloration of the drinking water in the central and eastern parts of the City. The water has been and is continuing to be tested to confirm there is no health risk at this time. The testing indicates slightly elevated levels of manganese in the drinking water. Manganese levels of this magnitude in drinking water are regulated for aesthetic purposes since they pose no health consequences.
The City has made adjustments to the water treatment process at the John Glenn Water treatment plant and is conducting fire hydrant flushing in the affected areas. The City expects the problem to return to normal in the next 24 to 36 hours. If you experience discolored water, allow your faucet to run for 5-10 minutes; if it does not clear up, please call (704) 282-4601 and the City will send out a technician to assist you.
We reiterate that all water samples indicate the water is safe to drink at all times, and we apologize for any inconvenience this has caused.
Source: https://www.monroenc.org/Community/About-Monroe/News/ID/1312/Water-Discoloration