Del. Code tit. 7, § 4135

In those cases, when all of the landowners involved, indicate by signed statement that they are familiar with the report of the board of ditch commissioners and that they favor the formation of the tax ditch, the board of ditch commissioners shall not hold a hearing and referendum, pursuant to § 4132 of this title, nor shall they give notice thereof as pursuant to § 4131 of this title, but they shall prepare the statement required and file their report, pursuant to § 4133 of this title, without a certificate of referendum.