Notwithstanding other requirements of law, as soon as any person responsible for a facility, premises, or operation, has information of any known or suspected release of materials which result or may result in illegal discharges or pollutants discharging into storm water, the storm drainage system, or waters of the United States of America, said person shall take all necessary steps to ensure the discovery, containment, and cleanup of such release. In the event of such release of hazardous materials, said person shall immediately notify emergency response agencies and the City of Grand Island of the occurrence via emergency dispatch services. In the event of a release of non-hazardous materials, said person shall notify the City of Grand Island in person or by phone or facsimile no later than the next business day. Notifications in person, by phone, or by facsimile shall be confirmed by written notice addressed and mailed to the City of Grand Island within three business days of the prior notice. If the discharge of prohibited materials emanates from a commercial or industrial establishment, the owner or operator of such establishment shall also retain an on-site written record of the discharge and the actions taken to prevent its recurrence. Such records shall be retained for at least three years.