The commission shall conduct a hearing to determine whether a water right should be cancelled, in whole or in part, under the Texas Water Code, §§11. 171-11.186, if the executive director requests such a hearing. A hearing under the Texas Water Code, §11.146, is required in order to determine whether a permit has been or should be forfeited and cancelled in whole or in part for failure of the permittee to commence or complete construction, unless permittee executes a form abandoning all rights under the permit and waiving rights to notice and hearing thereon. No hearing is required if the water right holder executes a form abandoning all rights under the water right and waiving the right to notice and hearing.