The board of trustees may elect to waive the requirement that a new ordinance or resolution be published by providing written notice of the passage of such ordinance or resolution to each resident within the boundaries of the sanitary district. The written notice may be accomplished by sending a copy of such ordinance or resolution by first class mail, to each resident at the resident's last known address, as shown on the books and records of the sanitary district.
SDCL 34A-5-29.2