# Industrial waste dumping in Kifisos River > Live situation record from CLSTR: https://clstr.news/situations/industrial-waste-dumping-in-kifisos-river > Updated: 2026-09-22T13:03:46.000Z. Sources: 37. Developments: 2. Greek authorities uncovered an illegal scheme to dump toxic industrial waste into the Kifisos River. Following a police operation conducted by the Hellenic Police's Waste Disposal Deterrence Team, three individuals were arrested: a 41-year-old tanker driver, a 46-year-old vehicle owner, and a 63-year-old fuel station manager in Egaleo. Investigations revealed that a specialized pipe had been installed to connect a tanker directly to a gas station's manhole, allowing highly acidic liquid industrial waste—with a recorded pH of 4.8—to discharge into the municipal storm drain network. This waste flowed into the Kifisos River and eventually into the sea. Police noted that at least four such illegal discharges occurred over a 20-day period. The waste, which contained high concentrations of organic matter and potentially heavy metals, was traced back to several industrial sources, including the Papadopoulos biscuit factory in Tavros and a public hospital. E. I. Papadopoulos S.A. issued a statement clarifying that the vehicle was not part of its own fleet but belonged to a third-party contractor responsible for transporting waste to the Metamorfosi Waste Treatment Center. The company stated it is cooperating with authorities and reserves the right to take legal action. Environmental experts, including Professor Demosthenis Sarigiannis, have warned that the acidic waste could mobilize existing heavy metals like lead and arsenic in the river, posing risks to public health and groundwater. Authorities are currently investigating the full scale of the activity by comparing the volume of waste collected from industrial sites and hospitals against the amounts legally delivered to treatment centers. ## Claims - Police arrested a tanker driver and a gas station manager in Egaleo. (disputed by 16 sources) - Police arrested a tanker driver, the vehicle owner, and a gas station manager in Egaleo. (disputed by 4 sources) - Industrial waste was discharged into a storm drain that leads to the Kifisos river and subsequently to the sea. (corroborated by 21 sources) - The waste originated from various industrial units, including a biscuit factory and a public hospital. (corroborated by 10 sources) - A special pipe had been installed to connect the tanker directly to the storm drain system. (corroborated by 8 sources) - At least four illegal discharges were identified within a 20-day period. (corroborated by 7 sources) - Laboratory analysis showed the waste had a high acidity level of pH 4.8. (corroborated by 7 sources) - A third-party company is contractually responsible for collecting and transporting waste from the Tavros factory to the Metamorfosi Wastewater Treatment Plant. (corroborated by 6 sources) - E. I. Papadopoulos S.A. stated that the tanker does not belong to its own fleet. (corroborated by 5 sources) - The industrial waste from food production has high acidity and a heavy organic load. (corroborated by 4 sources) - A tanker vehicle was caught dumping industrial waste into the Kifisos river via a manhole located at a gas station. (corroborated by 3 sources) ## Timeline ### 2026-09-22: Egaleo industrial waste scandal pollutes Kifisos River Greek police arrested a tanker driver and a station manager in Egaleo for illegally discharging acidic industrial waste into the Kifisos River, contaminating the Athens coastline. 35 sources. https://clstr.news/cluster/toxic-industrial-waste-dumped-into-kifisos-river-via-secret-network ### 2026-09-03: Thessaly Region investigates Trikki S.A. over potential river pollution The Thessaly Region is investigating Trikki S.A. after reports of odors and white discharge into the Lethaio River. Chemical analysis of collected samples is underway to determine if environmental laws were Viо 2 sources. https://clstr.news/cluster/thessaly-region-investigates-trikki-sa-over-potential-river-pollution --- Cite as: Industrial waste dumping in Kifisos River. CLSTR, https://clstr.news/situations/industrial-waste-dumping-in-kifisos-river