Requiring a landlord of property that is served by an on-site wastewater system to ensure, on or before July 1, 2028, and before each new tenant occupies the property thereafter, that the system has been inspected and pumped out in a certain manner; requiring a delegated approval authority to approve, to the extent practicable, the repair or replacement of any failed components of a drain field of a failing on-site wastewater system; extending certain dates; etc.