The container was discovered about 11:20 a.m. Sunday, May 13, in the 33400 block of San Gabriel Avenue, near the intersection with Sierra Highway, sheriff’s Sgt. Vincent Plair told City News Service.
“The container turned out to be a tank from a water softening system and the foaming was coming from salt tablets in the drum,” Plair said.
It was determined to be safe by bomb technicians about 2:20 p.m., Plair continued. The technicians used a robot as part of the investigation.
It’s unclear who dumped the container or where it came from, according to authorities.
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