If, at the end of the time allowed for compliance in the original notice or as extended in cases of appeal, compliance has not been accomplished, DEHS may cause the abatement by public employees, or by private contractor selected and approved by the governing Board or Council of this jurisdiction in the manner under the terms provided by this Chapter, and if such abatement is so carried out, such property shall be subject to a special assessment lien for the costs of the abatement.