W. Va. Code § 12-1-10
The treasurer shall keep in his office or her office a record showing the account of each depository. Under the account of each depository an entry shall be made showing the amount and date of each deposit, the amount and date of each withdrawal and the balance on deposit. The treasurer shall cause the state's account with each depository to be settled at the end of every month of the year and the balance in the depository to the credit of the treasury to be carried forward to the account of the next month.
All the statements and records shall be reconciled monthly and the reconciled reports shall be kept in the treasurer's office. The reconciled records for each month shall be kept in the treasurer's office for a period of five years.
W. Va. Code § 12-1-10