The allegations against Mark Sorensen, 61, were reported to Norton Shores police last week. Jail records show Sorensen was arrested Friday and arraigned Monday in Muskegon County District Court.
Sorensen and his wife are licensed foster care providers. Mark Sorensen does not have a criminal history.
He's being held in the Muskegon County Jail on a $500,000 cash or surety bond. If he's able to post bond, the judge instructed Sorensen not to have any contact with minor children.
Court documents show the alleged sexual penetration of the child occurred at Sorensen's home on Pontaluna Road sometime between April 1 and April 11. The victim is under the age of 13 and a relative of Sorensen.
"We are still obviously looking and following any leads that might suggest that there might be other victims out there," Muskegon County Prosecutor D.J. Hilson said. "We'd ask they, or their guardian or their parent, contact the Norton Shores Police Department and sit down and talk with detectives.”
According to Hilson, Sorensen and his wife may have fostered 40 kids throughout their time as foster parents.
Sorensen is due back in court for a preliminary examination May 1.