Hackney Council has spent more than £10,000 clearing tonnes of waste covering an area the size of a football field, it said today.
Last month, the council approved £100,000 worth of funds to turn Mabley Green in to the world's largest "edible park", according to the Evening Standard.
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The one-year-old Yorkshire Terrier was attacked and killed while being taken for a walk.
The lifeboat crew carried the pair into their boat and dropped them off back at Tower Bridge as people watched from the riverside.
The huge painting took two graffiti artists thousands of hours to complete in east London.