The Atlanta Public Schools system has outline which schools have been impacted by a boil water advisory issued for much of the City of Atlanta Monday morning. 

It was around 10:30 a.m. Monday when an alarm at one of the city's water treatment plants shut off a major chunk of Atlanta's water supply for about an hour. 

Officials said the problems were caused by a "control issue" at the Hemphill Pump Station in northwest Atlanta. Crews were doing routine maintenance when something triggered an alarm, which then shut off the water, causing pressure to drop across much of the system.

Watershed officials said the system is back to "normal operations," but that further testing was still being conducted before the advisory would be lifted. The advisory, they said, would likely extend into late Tuesday afternoon. 

RELATED: Boil Water Advisory issued across the city of Atlanta due to low water pressure

Atlanta Public Schools released a list of schools and facilities within the geographic region outlined by the city. 

MORE: APS locations affected by City of Atlanta boil water advisory

A spokesman for the district said they have advised those schools and facilities to abide by the city’s boil water order. That order remains in effect until further notice from the City.  

"Our APS Operations team has secured bottles of water and will continue to distribute those bottles to impacted schools tomorrow (Tuesday)," a statement from the district read. 

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Additionally, APS said its Department of Nutrition will provide pre-packaged, ready-to-eat meals at the schools affected by the boil water order. 

"We have notified our parents and caregivers of these developments and have also encouraged them to send their students to school tomorrow with water," the statement added.