Orange County attorneys and John Wayne Airport staff will reassess the airport’s agreement with Uber following recent accusations from a state agency that the ridesharing company failed to investigate or promptly suspend drivers who had complaints filed against them alleging they were driving under the influence of drugs or alcohol.

Supervisor Lisa Bartlett directed the investigation at the county board’s Tuesday meeting, saying the April 6 legal filing from the California Public Utilities Commission, which oversees ridesharing companies, raised “some public safety concerns with regard to the passengers that are being picked up at John Wayne Airport.”

“I think that we need to further investigate this matter and then figure out what we’re going to do with regard to (ridesharing companies), and Uber in particular, at John Wayne Airport on a moving forward basis,” Bartlett said.

Bartlett’s directive comes nearly three weeks after the state agency recommended a $1.1 million fine against Uber, saying the company had failed to comply with the state’s zero-tolerance policy against intoxicated drivers in 151 instances between August 2014 and August 2015.

An Uber spokesperson said the company has “significantly improved” its process of addressing complaints since the timeframe detailed in the legal filing and has operated at John Wayne Airport in full compliance with its permit.

State rules require ridesharing companies to suspend drivers immediately after a passenger files a zero-tolerance complaint against them. But the commission reviewed a sample of 154 such complaints from Uber passengers and found the company didn’t promptly suspend drivers in 149 of those instances and failed to investigate 133 of them.

In 64 cases, the state discovered the driver picked up one or more fares within an hour of when the passenger filed a zero-tolerance complaint.

The agency also wrote in its legal filing that Uber failed to follow its own, easygoing policy to deactivate drivers who have received three unconfirmed zero-tolerance complaints, allowing at least 25 such drivers to continue working for the company afterward.

The state agency did not immediately respond to questions of whether any of the alleged violations occurred in Orange County or at John Wayne Airport.

Uber said it has worked closely with the California Public Utilities Commission in recent years as it improved its response to complaints of intoxicated drivers. It’s “community guidelines” webpage now says that any driver found to be under the influence of drugs or alcohol will be permanently deactivated and that the company can also ban drivers who receive several unconfirmed complaints.

Uber and other ridesharing services began operating at John Wayne Airport in March 2015.