PLEASANTON (CBS SF) — Acetone spilled from a big-rig on westbound Interstate Highway 580 in Pleasanton late Wednesday morning and closed lanes on the highway for several hours into the afternoon, according to the California Highway Patrol.

Officers responded at 10:56 a.m. to a report of a big-rig on the right shoulder of westbound Highway 580 east of Hopyard Road that was leaking some sort of fluid, CHP Officer Tyler Hahn said.

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Authorities determined the fluid is acetone and are moving it from the leaking truck into other containers, according to Hahn.

He said the fluid did not spread to any nearby drains and is not affecting any wildlife.

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The three right westbound lanes of the highway were shut down in the area, While Hahn said it was initially thought that the lanes would likely be closed until at least 2:45 p.m., shortly before 2 p.m. CHP Dublin announced that two lanes were reopening. It was still unknown at that time when the third lane would reopen.

At about 3:18 p.m., the Sig-Alert was cancelled and all lanes of I-580 were reopened. The duration of the incident was just over four hours.

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