The County Engineer, or their designee, may require as a condition to the granting of a drainage permit, that the applicant furnish security in the form of a bond, cash escrow account, an irrevocable letter of credit or other security acceptable to the County in its sole discretion, in an amount determined by the County Engineer, or their designee to be sufficient to complete the restoration and replanting of the property in accordance with the terms of the drainage permit and within the duration thereof. The security shall be in an amount equal to the estimated cost of such restoration and replanting and with surety and conditions satisfactory to the County Engineer, or their designee.