# Heřmanice spoil tip waste investigation > Live situation record from CLSTR: https://clstr.news/situations/hemanice-spoil-tip-waste-investigation > Updated: 2026-08-10T03:00:00.000Z. Sources: 6. Developments: 2. The Czech Ministry of the Environment has concluded a multi-year investigation into the Heřmanice spoil tip near Ostrava regarding the suspected presence of illegal construction waste within the site's protective separation wall. Initial probes focused on whether hundreds of thousands of tons of materials, such as bricks, concrete, and plastic, were mixed with mining spoil. While the investigation looked into potential liabilities for companies like Ridera Bohemia, the Ministry ultimately decided to terminate the proceedings, stating that no responsible party could be identified and that the material in question is not classified as environmentally harmful waste. Ridera Bohemia has maintained its compliance through expert reports, suggesting the investigation may have been influenced by local landowner disputes. Meanwhile, the state enterprise Diamo continues to prioritize the remediation and safety of the site. ## Timeline ### 2026-08-10: Czech Ministry closes Heřmanice spoil tip waste investigation The Czech Ministry of the Environment has closed its investigation into the Heřmanice spoil tip, finding no evidence of illegal waste dumping or wrongdoing by Ridera Bohemia despite conflicting photographic and 3 sources. https://clstr.news/cluster/czech-ministry-closes-hemanice-spoil-tip-waste-investigation ### 2026-08-04: Czech Ministry of Environment halts Heřmanice waste heap case, declares no culprit Czech Ministry of Environment halted a four‑year probe into the Heřmanice waste heap, found no culprit, and dropped a potential 25 million‑crown fine against Ridera Bohemia. 5 sources. https://clstr.news/cluster/czech-ministry-of-environment-halts-hemanice-waste-heap-case-declares-no-culprit --- Cite as: Heřmanice spoil tip waste investigation. CLSTR, https://clstr.news/situations/hemanice-spoil-tip-waste-investigation