but in no event shall the aggregate amount of such civil penalty exceed $5,000.00.
Such written notice shall be sent by registered or certified mail or statutory overnight delivery by the council to the last known address of such person. The person so notified shall be granted an opportunity to show in writing, within such reasonable period as the council shall by rule or regulation prescribe, why such penalty should not be imposed. The notice shall also advise such person that, upon failure to pay the civil penalty subsequently determined by the council, if any, the penalty may be collected by civil action. Any person upon whom a civil penalty is imposed may appeal such action pursuant to Chapter 13 of Title 50, the "Georgia Administrative Procedure Act."
OCGA § 44-12-264