Updating the funding priorities for failing sewage systems and holding tanks; requiring as a second priority those located within the Maryland Chesapeake Bay 8-digit watershed that have a relative effectiveness for total nitrogen reduction of 9.24 or higher based on the Chesapeake Bay watershed model; requiring as a third priority funding for failing systems within the 500-year floodplain, and fourth to certain other failing systems; and expanding certain funding eligibility criteria for on-site and community sewage systems.