Where installed, all grease, oil, and sand interceptors shall be maintained by the owner, at the owner’s expense, in continuously efficient operation at all times. The owner shall regularly inspect interceptors and shall provide inspection records upon City request. The City may periodically inspect records or interceptors to determine compliance. If the interceptor is found to be in noncompliance, the owner shall properly clean the interceptor within the time period designated by the inspector. If the owner encounters unforeseen delays in cleaning the interceptor, the owner shall contact the inspector for an extension which may be granted for good cause.