The obligation to be assumed by the City for endowment care is declared to be the following: To irrigate the lots, seed the lots and keep the area green and neatly mown; to trim and prune the flowers and shrubbery permitted to grow on said lots under the terms of this chapter; and to fill in and keep the general level of such lots as they may sink in or cave in. The City shall not be obligated from the revenue from endowment care to proceed with burials, erect any head or foot stones or monuments, or replace any flowers or shrubbery which shall die or become killed through no fault of the City. [Ord. 1459 § 8, 1971; Code 1970 § 2.48.090.]