The city reported Tuesday that cloudy water found in Holmes Run near the Charles Beatley Central Library on Feb. 15 and Feb. 19 was found to be non-toxic runoff.

The city said after the Alexandria Fire Department received reports of the cloudy water, they investigated and determined that the water was coming from a construction site at Patrick Henry Elementary School.

The department’s hazmat team visited the construction site and found that workers had gone through a process to filter and remove accumulated precipitation from the site. The process resulted in cloudy water being expelled from the site following filtration.