At the Cinkarna Celje production site at present, an ecological risk assessment for both watercourses was carried out from April to November. Environmental tests have confirmed the decline of the ecological condition of the Hudinja and Ložnica rivers, derived from the summary published today on the Ljubljana Stock Exchange website.
The amount mentioned from arsenic transport in groundwater corresponds well to the ecological effects seen in the Lodge in the presumed arsenic source area, setting out the summary of the assessment. However, there is a need to check the existence of other unknown arsenic sources along the River Hudinja at the moment.
Further investigations will be required on two sites within the company's area, which will allow a thorough assessment of the impact of groundwater after contamination with zinc and chlorobenzene.
Two locations need urgent recovery
In accordance with the selected criteria, Zincar should identify two locations in current production areas such as areas of severe pollution. such as areas where recovery is indispensable. These sites are directly linked to the negative ecological impact on both rivers and unacceptable migration of pollutants in groundwater.
Other concentrated points in the plant must be labeled as areas with severe pollution in accordance with the criteria, but no urgent recovery is required immediately. In these locations, the value of interference of at least one substance that may be detrimental and more than the acceptable size or size of the affected area is exceeded.
So, CDM Smith recommends four measures. Hydraulic barrier (pumping, collecting and cleaning of groundwater pumping sources) should be held immediately in two locations. This would prevent further migration of groundwater pollutants in areas marked as areas of severe pollution and urgent rehabilitation.
The company also offers groundwater monitoring on sites that have been designated as areas of severe pollution, but where emergency rehabilitation is not required according to the criteria. The third measure is further investigated in areas where the size of the impact has not been clearly defined. CDM Smith proposes to implement a surface and groundwater monitoring program.
In the sink pledge to carry out additional research
According to technical director Cinkarna Celje at the press conference today Nikolaja Podgoršek-Selič, the fourth measure is about the installation of hydraulic barriers before the Ložnica East to Hudina ends, with five to ten years of pumping, cleaning and monitoring. In this way, it would prevent the delivery of sink and chlorobenzen, and all measures will have to be co-ordinated with the Ministry of Environment and obtaining appropriate consent.
Podgoršek-Seličeva announced that additional research will be carried out for chlorobenzene. He added that the company had ordered 5.8 million euros for the proposed measures for the next five to ten years, that 650 million euros have been spent so far.
In Cinkara, there has been a significant impact on groundwater in the company area in 2016 and 2017 due to the increasing concentrations of potentially harmful substances, especially zinc, arsenic and chlorobenzene, whose values are higher than the values Relevant limit for soil quality and groundwater. The increasing values of copper, lead and cadmium were also found.
On the basis of soil sampling, it is clear that pollution causes waste disposal from former production plants and does not result from the current production on this site.
At the margins of the press conference, Director General of the CinkarnaTomaž Benčina it is estimated that the company is still profitable, but this profitability will be under pressure, as it is a difficult time for the company before the company.
He also said that Zinkarna had already visited the environmental ministerJure Leben, with which they agreed to support comprehensive solutions to reduce Celje's basin pollution. By the end of the year, there will also be a study on the potential new location of the Cinkarna factory in Serbia, and the company's supervisory board will adopt the decision on the construction, says Benčina.