A waste disposal center in Baiyun district of city of Guangzhou dumped over 100,000 cases of melamine-tainted milk into the nearby Shijing River without proper treatment which has caused a white layer of milk floating on the river and emitting odor in the warm weather. The local residents filed complaints with the local authority but the waste center claimed that they have received the approval from the local Sanitation Bureau on the way that the tainted milk was disposed.
Source: Xinhua, November 2, 2008
http://big5.xinhuanet.com/gate/big5/www.gd.xinhuanet.com/newscenter/2008-11/02/content_14806970.htm