175.131  Funds received by municipality or special fire control district; deposit in firefighters' pension trust fund.--All state and other funds received by any municipality or special fire control district under the provisions of this chapter shall be deposited by such municipality or special fire control district immediately, and under no circumstances more than 5 days after receipt, with the board of trustees. Employee contributions, however, which are withheld by the employer on behalf of an employee member shall be deposited with the board of trustees of the firefighters' pension trust fund at least monthly.