WILTON – A Farmington man has been formally charged for his involvement in an April 1 automobile crash with a NorthStar ambulance, Wilton police officer Blaine Rackliff said Thursday.

William Thibodeau, 52, was served a summons Wednesday at Central Maine Medical Center where he has been a patient since the accident, Rackliff said. The charges were delayed due to the severity of the injuries he received in the accident, he said.

Charges include driving to endanger, reckless conduct with a motor vehicle, failing to stop at a stop sign, and operating without lights after dark, he said.

The results of a blood-alcohol test are pending, Rackliff said.

Thibodeau is scheduled to make an initial appearance in Franklin County District court on June 18, he said.

Thibodeau was driving a blue 2001 Ford Ranger south on Depot Street at 8:25 p.m. when witnesses saw the vehicle drive through the intersection of routes 2 and 156 without stopping at the stop sign, Rackliff said.

After entering the intersection, the Ford Ranger was struck by a NorthStar ambulance, he said.

“Several witnesses at the scene stated the truck was speeding toward Route 2 without the activation of their headlights” and did not stop at the stop sign, police Chief Dennis Brown wrote in a statement following the accident. He also stated that the blue 2001 Ford was driven out of a store opposite Gould’s Service Station, and the driver and his passenger, Timothy Hastings, 47, of Wilton, had been patrons at the store throughout the day.

Hastings and NorthStar employees Tom Doak, 66, of Wilton and Virginia Swan, 46, of Dixfield were treated at Franklin Memorial Hospital in Farmington and released.