Daeth SAC i’r casgliad mai prin fu’r cynnydd mewn rhai meysydd hanfodol bwysig ers iddi gyhoeddi ei hadroddiad diwethaf ym mis Ionawr 2011. Daeth yr Archwilydd Cyffredinol i’r casgliad, felly, bod y Cyngor wedi methu â chyflawni ei ddyletswydd o dan Fesur Llywodraeth Leol (Cymru) 2009 i wneud trefniadau er mwyn sicrhau gwelliant.
The WAO found that in some critical areas little progress had been made since its last report in January 2011.  The Auditor General has therefore concluded that the Council is in breach of its duty in the Local Government (Wales) Measure 2009 to make arrangements to secure improvement.