Environmental Cleanup Services for Oil Contamination in Vana-Vigala

This contract opportunity involves the cleanup of oil contamination at the property located at Pikk Street 9 in Vana-Vigala. A study conducted in May and June 2025 revealed that the soil at this site is heavily contaminated with petroleum products, exceeding the permissible limits for both residential and industrial land. The contamination primarily exists in the fill material, humus layers, and sandy clay interlayers, with a maximum thickness of up to 5.3 meters. The estimated volume of the contaminated area is approximately 6,450 cubic meters, equivalent to about 10,320 tons, some of which extends beyond the property boundaries. The study utilized a precise 3D model created with AutoCAD Civil 3D based on geodetic data. Analysis indicated that the levels of petroleum products and PAH compounds significantly exceed allowable limits at several points. Given the extent of the contamination, hydrogeological conditions, and environmental safety considerations, the study concluded that the only technically and temporally feasible solution is ex-situ remediation, which involves excavating the contaminated soil, transporting it, and managing it at a landfill. For more details on the qualification criteria and grounds for removal, please refer to the tender documentation.