Most of the Parks Department's payroll problems were related to "out of class" compensation, which is a type of pay for employees who perform jobs outside of their regular responsibilities.
Auditors found that managers and employees ignored rules limiting the use of that compensation.
Jacob Roper is with the Controller's Office.
He says the department's lack of documentation makes it difficult to determine how many payments were legal.
ROPER: "It's unclear how much money is involved, or what impact there was in terms of dollars, but it's pretty clear that procedures weren't being followed, and it's pretty clear that the potential for the abuse of public funds was there, and we want to make sure that stops."
The audit also found temporary employees working more hours than allowed, unauthorized vacation buybacks and employees earning leave credit while on disability.