A county or other public agency contracting as provided in sections 6103.21 and 6103.22 of the Revised Code for the joint use of any water supply facilities acquired or constructed, or to be acquired or constructed, by another public agency may provide for payment of the agreed compensation by the levy of taxes or special assessments or from water rates and charges, if and to the extent that the public agency is authorized by the laws governing it in the acquisition, construction, maintenance, or operation of water supply facilities to provide for payment of costs in respect of which the compensation is due from those sources, and may issue or incur public obligations as provided by those laws and pay the debt charges on those obligations from those sources, if and to the extent so authorized.