The indemnity fee required under sections 459.502 and 459.503 shall be waived and the fee shall not be assessable or owing if, at the end of any three-month period, unobligated and unencumbered moneys in the livestock remediation fund, not counting the department‘s estimate of the cost to the fund for pending or unsettled claims, exceed three million dollars. The department shall reinstate the indemnity fee under those sections if unobligated and unencumbered moneys in the fund, not counting the department’s estimate of the cost to the fund for pending or unsettled claims, are less than two million dollars.