A proposed class-action lawsuit was filed this week against a South Jersey hospital over a rounding system used for payroll that a worker alleges denies proper overtime pay to hourly workers. The lawsuit was filed by Katherine Dohanicz against Underwood-Memorial Hospital and its parent, South Jersey Healthcare, at New Jersey District Court in Camden, N.J.. Dohanicz has worked as a nurse at Underwood-Memorial in Woodbury, Gloucester County, since 1989.