An applicant for a development permit may appeal the determination of a State unit under § 11-521 of this subtitle on the grounds that: the specific information, test, or study is unnecessary; or the time stated by the State unit for completion is unreasonable. The appeal shall be made: to the board of review of the State unit; or if the State unit does not have a board of review or its board of review does not have jurisdiction to review the development permit, to the Board of Public Works. The appeal must be taken within 30 days after the applicant receives the determination. The board of review or the Board of Public Works: shall consider the appeal promptly; may affirm, modify, or reverse the determination of the State unit; and may set a new hearing date with respect to the application. The applicant has the burden to show that the determination of the State unit was improper. The State unit shall continue its evaluation of the development project, including tests and studies, through the appeal procedure.