Contributions may be made to authorities from time to time by the participating governments and by any other municipalities, counties or persons that shall desire to do so. All such funds and all of the other funds received by any authority shall be deposited in a separate account in such banking institution or institutions as its board may direct and shall be withdrawn therefrom only in such manner as its board may direct. Each authority shall keep strict account of all its receipts and expenditures and shall make a quarterly report to the participating governments which have made contributions to it and such report shall contain an itemized account of its receipts and disbursements during the preceding quarter. Such report shall be made within sixty days after the termination of the quarter. Within ninety days after the end of each fiscal year, each authority shall make an annual report containing an itemized statement of its receipts and disbursements for the preceding fiscal year, and any and all other information which the board may deem pertinent, to all of the participating governments. The books, records and accounts of each authority shall be subject to audit and examination by the state Tax Department of West Virginia.