Governing entities shall retain copies of the following documents generated under this subchapter for a minimum of five years from generation: all local plan submissions and approvals, all treatment proposals submitted to TPWD, all notices received and provided, all control measures taken by the governing entity (including records of date, place, location, type, and amount of all aquatic herbicide applications), and any other information relevant to a particular individual request for shoreline treatment.
31 Tex. Admin. Code § 57.936