Firefighters responded early Sunday to an explosion at the Modesto Junior College swimming pool. No one was injured by the chlorine that was released, the Modesto Fire Department said.
The blast was reported about 6 a.m. in the pool area of the east campus of the college at 435 E. College Ave. As of late afternoon, the cause was not determined.
Battalion Chief Darin Jesberg said the explosion did structural damage near the pool, but the chlorine did not cause problems in the neighboorhood. Windows were broken at the site.
Coldwell Avenue was closed for part of the day between College Avenue and Tully Road.
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A hazardous materials team was at the scene, and staff from the Modesto Irrigation District, Pacific Gas & Electric and the Stanislaus County Department of Environmental Resources also responded.