port surface or would require the erection of scaffold. (ii) At a new affected source, an owner or operator may designate no more than 3 percent of connectors as inaccessible. (iii) If any inaccessible, ceramic, or ceramic-lined connector is observed by visual, audible, olfactory, or other means to be leaking, the leak shall be repaired as soon as practicable, but no later than 15 calendar days af