If the district determines that a public nuisance exists, it shall, by certified mail, notify the record owner of the property to abate the public nuisance. The notice of public nuisance shall describe the public nuisance and specify the time, date, and place for a hearing regarding the public nuisance. The hearing shall take place no sooner that 10 calendar days and no later than 60 calendar days from the date of mailing of the notice of public nuisance. At the hearing, district staff shall present evidence of a public nuisance and the record owner may present evidence to the general manager that a public nuisance does not exist or has been abated.