Where no satisfactory questionnaire (or alternative information) is available, each mixture of fines waste stream disposed will be subject to the standard rate of LDT.
Os nad oes holiadur boddhaol (neu wybodaeth amgen) ar gael, bydd pob cymysgedd o ffrwd wastraff gronynnau mân a waredir yn ddarostyngedig i gyfradd TGT safonol.