In addition to the Board’s authority set forth in § 62.1-44.20, a locality serving as a VESCP authority or any duly authorized agent thereof may, at reasonable times and under reasonable circumstances, enter any establishment or upon any property, public or private, for the purpose of obtaining information or conducting surveys or investigations necessary in the enforcement of the provisions of this article. In accordance with a performance bond with surety, cash escrow, letter of credit, any combination thereof, or such other legal arrangement, a VESCP authority may also enter any establishment or upon any property, public or private, for the purpose of initiating or maintaining appropriate actions that are required by the conditions imposed by the VESCP authority on a land-disturbing activity when an owner, after proper notice, has failed to take acceptable action within the time specified.