Notwithstanding other requirements of law, as soon as any person responsible for a facility or operation, or responsible for emergency response for a facility or operation, has information of any known or suspected release of materials which are resulting or may result in illegal discharges or pollutants discharging into stormwater, the drainage system or waters of the U.S., that person must take all necessary steps to ensure the discovery, containment, and cleanup of such release. In the event of a release of hazardous materials that person must immediately notify emergency response agencies and the Idaho department of environmental quality of the occurrence via emergency dispatch services. In the event of a release of nonhazardous materials, the person must notify the authorized enforcement agency in person or by phone or facsimile no later than the next business day. Notifications in person or by phone shall be confirmed by written notice addressed and mailed to the city engineer within three (3) business days of the phone notice. If the discharge of prohibited materials emanates from a commercial or industrial establishment, the owner or operator of the establishment must also retain an on site written record of the discharge and the actions taken to prevent its recurrence. Such records must be retained for at least three (3) years from the date of the discharge. (Ord. 3455, 2012)