The degree of protection required by this storm drainage control regulations ordinance, as amended from time to time, is considered reasonable for regulatory purposes and is based on historical records, engineering and scientific methods of study. Larger storms may occur or stormwater runoff depths may be increased by manmade or natural causes. This storm drainage control regulations ordinance, as amended from time to time, does not imply that land uses permitted will be free from stormwater damage. The storm drainage control regulations ordinance, as amended from time to time, shall not create liability on the part of the Town of St. John, Lake County, Indiana, or any officer, appointee or employee thereof for any damage which may result from reliance on this storm drainage control regulations ordinance, as amended from time to time, or on any administrative decision lawfully made thereunder.