Edited sentence: According to the Construction Industry Research and Information Industry (CIRIA), from 2006 to 2009, over 15,000 items of ordnance were found in construction sites in the UK.CIRIA have now published "Unexploded Ordnance (UXO) - a guide for the construction industry" to provide advice on assessing the risk posed by UXO.Most notably, 1000 homes were evacuated in Plymouth in April 2009 when a Second World War bomb was discovered, and in June 2008 a 1000kg bomb was found in Bow in East London