The degree of flood protection required by this Regulation is considered reasonable for regulatory purposes and is based on engineering and scientific methods of study. Compliance with this Regulation does not insure complete protection from flooding and is not to be construed as a warranty. Larger floods may occur or the flood height may be increased by man-made or natural causes, such as bridge openings restricted by debris, natural erosion, streambed meander or man-made obstructions and diversions. This Regulation is not intended to imply that areas outside the floodplain or land uses permitted within such areas shall be free from flooding or flood damage. This Ordinance shall not create liability on the part of the Pinal County Flood Control District or any officer or employee thereof for any flood damages that may result from reliance on this Regulation or any administrative decision lawfully made there under.