On March 24, 2019 at approximately 0212 hours, the Plymouth County Sheriff's Office arrested Charles Albert Vondrak, age 47 of Sioux City, for OWI 1st offense.  A traffic stop was conducted on Vondrak's vehicle for failing to dim head lamps and driving center of roadway.  Vondrak did show signs of impairment during the traffic stop and field sobriety tests were conducted.  Vondrak was jailed at the Plymouth County Jail.