 Little Hockley Pool was filled in after 1834 whilst Great Hockley Pool was drained in 1869.In April 2008, the Jewellery Quarter was mentioned as being at risk of flooding by Gareth Morgan, an environment expert at the Royal Institution of Chartered Surveyors, due to the rising water table in the city and its location adjacent to Birmingham's canal network.The rising water table is partly a result of the loss of heavy industry which used to remove large quantities of water.