"Her eyes, you could tell she was drunk," he said. "Her breath sort of smelled like alcohol."
Police said no children were on the bus when Maccarone was arrested, and she had "recently completed two afternoon bus routes," KATU reported.
TDN.com reported that police said they smelled "obvious odor of intoxicants" on Maccarone. She was arrested on suspicion of driving a school bus while under the influence and two counts of reckless endangerment, KPTV reported.
"This incident we take very seriously and our number one priority is safety and security for our kids," Rick Parrish, spokesperson for the Longview School district told KGW in a statement.
"We're thankful that all of our students were delivered safely home," Parrish told TDN.com.