FTSE Small Cap-listed base metals producer Talvivaara Mining has reported that it has implemented actions as a result of an investigation conducted into the causes of its gypsum pond leakage last November.The company, whose primary focus is on nickel and zinc, said that the investigation - which was conducted by the VTT Technical Research Centre of Finland (VTT)- had resulted in several recommendations for corrective and development actions. The company initiated the implementation of the majority of the recommendations immediately following the leakage in November 2012, and said that the board had requested action plans from the company's operative management regarding the remaining recommendations.Water managementTalvivaara said it had established a separate organisation focusing on water management, which would be responsible for the overall water balance management and the design and implementation of necessary short and long-term water management measures.The company said that it commenced immediate actions following the November 2012 gypsum pond leakage to reduce the water volume in all bioheapleaching safety ponds, gypsum ponds and safety dams such that the safe treatment of spring melt waters could be ensured and sufficient safety capacity in view of potential new leakages could be created. Safety cultureIn the future Talvivaara said it would pay increasing attention to risk management and active development of the company's safety culture with the help of its internal organisation and, as required, external consultants. In order to ensure the development, it said that the company's sustainability organisation would be strengthened by one-to-three people during the current year and a person responsible for safety would be nominated for each production department. Talvivaara Mining's share price was down 3.45% to 14p at 14:41 on Monday.MF