MP opens procedure to investigate possible risk in MG dam

The Public Ministry of Minas Gerais (MPMG) instituted this Friday (16) an administrative procedure with the purpose of evaluating the safety and stability conditions of the D4 Dam of the company Indústrias Nucleares do Brasil (INB), installed in the city of Caldas. The District Attorney’s Office of the city, responsible for the case, called in state and municipal Civil Defense technicians, in addition to the National Mining Agency (ANM) and the State Environmental Foundation (FEAM), with the aim of investigating the causes of the accident. raising the emergency level of the dam and adopting necessary measures to control anomalies and restore safety to the area. The containment structure for uranium and other radioactive materials, which until then had a declaration of stability condition, was upgraded to Level 1 of emergency on the 7th of this month. The D4 dam is part of a uranium exploration mine that was closed in 1995. The unit’s decommissioning process is ongoing. On its page, the National Mining Agency (ANM) reported that the D4 Dam of the Caldas Decommissioning Unit (UDC) is classified as emergency level 1, the lowest on the three-level scale. According to the state company, the D4 was built as a decantation basin, but recently, due to the change in the regulations of the inspection bodies, it was reclassified as a dam. The application of these criteria to data from the two INB dams in Caldas resulted in classification at level 1 of emergency. “INB reinforces that there were no occurrences in these dams, only the change in the supervisory body and the adaptations to these classifications and documentation”, he said. The dams are permanently monitored. According to the Emergency Action Plan (PAE), which is part of the Dam Safety Plan (PSB), the safety bodies must be notified, which was carried out by letter.

Agência Brasil