A 42-year-old Seat Pleasant woman who is the mother of five children was indicted yesterday on 20 courts of welfare fraud by a Prince George's County grand jury, according to County State's Attorney Arthur A. Marshall Jr.

The woman, Corrine W. Riddick, was employed by the U. S. Government Printing Office, according to Marshall.

The indictment alleges that while working for the government, she began receiving public assistance from the Prince George's County Department of Social Services.

The indictment also said Riddick was unjured on the job and received Workmen's compensation. She is accused of failing to tell the social service department that she received a salary or that she got the workmen's compensation benefits.

The state's attoorney said, Riddick received money from the Aid to Families with Dependent Children program, a rent subsidy from the County Housing Authority and as well as medical assistance and food stamps.

Riddick was charged with two counts of welfare fraud, nine counts of false pretenses and nine counts of welfare perjury. Conviction on a count of false pretense and welfare perjury can carry up to a 10-year prison, a $1,000 fine, and restitution.