State health officials are expected to test for contamination today at the site of a human-waste spill in Leavenworth County that happened when a tanker truck overturned.

The 16-foot truck, driven by an employee of Deffenbaugh Industries of Shawnee, overturned and came to rest in a ravine about 2 p.m. Tuesday on Fairmount Road near 155th Street, police said. The tank ruptured, spilling “product of human waste” onto the ground.

Firefighters, police, county health workers, and officials from Deffenbaugh Industries responded to the scene. A recovery team was able to recover most of the waste on Tuesday, a police report stated.

The cause of the accident remains under investigation.

The 52-year-old truck driver, whose name was not released, was transported to St. John’s Hospital.