Rock Valley man arrested following sex offender registry compliance check – September 9

On Saturday, September 9, at 10:39 a.m., the Sioux County Sheriff’s Office arrested Thomas Vander Waal, age 39, of Rock Valley, IA.

The arrest stemmed from a deputy conducting a verification of Vander Waal’s status on the Iowa Sex Offender Registry.

Upon further investigation, Vander Waal failed to report his use of social media and list vehicles of operation, as required when on the registry.

Vander Waal was transported to the Sioux County Jail where he was charged with violation of conditions of sex offender registry.