Tak, Officials inspect the condition of the retention pond area in the factory in Tak Province in order to prepare. Before transporting cadmium waste back to landfillActing for the government Deputy Director General of the Department of Primary Industries and mining along with related agencies Went to the area to inspect a company on Phahon Yothin Road, km. 409-410, Nong Bua Tai Subdistrict, Mueang Tak District, which is an industrial waste storage factory. Origin of cadmium waste Before spreading to the Samut Sakhon, Chonburi and Bangkok areas to prepare the detention ponds for conditions. Before movingHowever, officials must inspect the condition of the pond floor. It must be covered with 2 layers of 1.5 mm. thick HDPE plastic sheets to prevent residue leakage. Including checking the stability of the cement floor and the edge of the inner pond. If they are not stable, Need to improve and during the cadmium waste landfill Water must be sprayed at the landfill while moving the waste into the pit. To prev ent the spread of dust. and stabilization in buried ponds When all the waste has been put into the pond The residue will be spread smoothly and then sand will be poured. and covered with another layer of HDPE plastic before pouring reinforced concrete to cover the pond as the final step. To create safety for people in the area .Source: Thai News Agency