Requiring, by January 1, 2028, and every 5 years thereafter, and after consultation with local jurisdictions and State agencies, the Department of the Environment to designate priority watersheds for the purpose of requiring subdivisions to conduct flood-related watershed studies; requiring a subdivision that contains a designated priority watershed to conduct a watershed study and submit the study to the Department for review and approval; specifying the required contents of a flood-related watershed study required under the Act; etc.