Tesla spilled 916 gallons of diluted coolant solution in Matadero Creek on Oct. 17, raising concern among residents about the surrounding environment and potentially leading to a fine for the company.

City officials clarified that the contents spilled in the creek pose no danger to health or to the environment.

According to Chief Communications Officer for the city, Meghan Horrigan-Taylor, 5.9 gallons of the total solution was Meras 1020, which is composed of disodium tetraborate pentahydrate and sodium hydroxide. According to Palo Alto High School environment science teacher Nicole Loomis, when sodium hydroxide is released into bodies of water, it could change the pH levels in the water and affect organisms.

Because the concentration of the toxic substance was 0.00647%, there is less of a chance that the solution will affect the surrounding environment.

It’s currently unknown what repercussions Tesla will face.

“Tesla was potentially storing it on-site without a permit, so I think there will likely be fines associated with that,” Loomis said.