Powder at NSJ post office ID’d | TheUnion.com
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Powder at NSJ post office ID’d

The unidentified substance that stopped business at the North San Juan Post Office turned out to be rubber fragments from the Marysville distribution center, according to the postmaster.

North San Juan Postmaster Rhonda Flores said Friday the brownish-yellow granular substance discovered in a mailbag Thursday came from a rubber rolling pin on a sorting machine that overheated after a piece of mail became stuck.



She gathered fragments of the rubber in Marysville and compared it to the substance found in North San Juan, and they matched.




“I was down there last night, talking with the supervisor, and the problem we had is a very rare problem,” Flores said.

The post office was closed from 3 p.m. Thursday to 12:15 p.m. Friday, when the county Department of Environmental Health allowed it to reopen.

In November, another distribution center malfunction led to shutdowns at the Penn Valley and Rough and Ready post offices. That substance turned out to be melted plastic envelope windows.

Tracy Gidel, supervisor for Environmental Health’s hazardous material division, said he plans to discuss with postal officials ways to avoid future mishaps.


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