Ohio mayor says employee error caused chemical leak, lifts evacuation orders

The city of Ashtabula, Ohio, has lifted the evacuation order that was imposed on Thursday after a chemical leak at the Riverfront Manufacturing Plant was traced to an employee error, the mayor said in a briefing on Monday. The incident, which prompted the temporary relocation of more than 1,200 residents from the surrounding neighbourhood, initially raised fears of a hazardous release of toxic substances into the air and water supply. However, officials now believe the leak was limited in scope and that no long‑term health risks remain for the public.Mayor Jonathan Greene addressed a press conference at City Hall, outlining the sequence of events that led to the discovery of the leak..

“At approximately 09:15 on Thursday morning, plant operators reported an abnormal pressure reading in tank three, which stores a solvent used in the production of industrial adhesives,” he explained. “Our emergency response teams, in conjunction with the Ohio Environmental Protection Agency and the local fire department, were immediately dispatched to assess the situation.” The rapid mobilisation of resources, Greene added, helped contain the release before it could spread beyond the plant’s perimeter.Preliminary investigations by the Ohio EPA revealed that the pressure anomaly was the result of a valve being left open during a routine maintenance procedure. The valve, intended to be closed after a scheduled inspection, remained ajar due to a miscommunication between the maintenance crew and the plant’s control room..

As a result, a small quantity of the solvent – identified as a mixture of glycol ethers – escaped through a secondary containment wall and entered the drainage system. The substance, while classified as hazardous, is not classified as a carcinogen and poses minimal risk in the dilute concentrations detected.Environmental monitoring stations set up around the plant recorded a brief spike in airborne concentrations of the solvent, prompting the Ohio Department of Health to issue a precautionary advisory to residents. “The levels recorded were well below the Occupational Safety and Health Administration’s permissible exposure limits,” said Dr..

Emily Hart, the department’s lead toxicologist. “Our airborne sampling showed concentrations of less than 0.1 parts per million, which is far beneath the threshold that would cause acute health effects.” The advisory, which recommended that residents keep windows closed and avoid outdoor physical activity for a short period, was lifted after two days of consistent readings within normal ranges.The decision to evacuate was taken by the city’s emergency management director, Karen Mitchell, who cited the uncertainty surrounding the leak’s magnitude. “When we first received the report, the exact volume of the spill was unknown, and the potential for groundwater contamination could not be ruled out,” Mitchell said..

“Given the proximity of the plant to residential areas and the local river, we opted for a cautious approach to protect public safety.” The evacuation order covered the 0.8‑square‑mile zone surrounding the plant, affecting a mix of single‑family homes and small apartment complexes.Residents were temporarily housed in three community centres and a local high school, with the city providing meals and basic supplies. Local charities, including the Ashtabula Food Bank, mobilised volunteers to distribute essential items, while the Red Cross set up a temporary medical triage station to monitor for any signs of exposure. By Friday evening, most families had returned to their homes after officials confirmed that the air and water quality met state safety standards..

“The cooperation of the community was remarkable,” Mayor Greene remarked, adding that the city would continue to support those who experienced inconvenience during the evacuation.The plant’s management has pledged to review and overhaul its maintenance protocols to prevent a recurrence. In a statement released on Sunday, Riverfront Manufacturing’s chief operating officer, Laura Bennett, expressed regret over the incident and outlined steps the company will take. “We are conducting a comprehensive audit of our standard operating procedures, with particular focus on communication channels between field crews and control personnel,” Bennett said..

“Additional training sessions will be instituted, and we will install redundant safety interlocks on critical valves to ensure that a single point of failure cannot lead to a leak again.” The company also committed to covering the costs incurred by the city for emergency response and resident assistance.State regulators have opened a formal inquiry into the incident, with the Ohio EPA’s Office of Environmental Compliance planning to issue a report within the next 60 days. The investigation will examine whether the plant adhered to federal and state hazardous materials handling regulations, and whether the employee error constituted a breach of established safety standards. “Our priority is to ensure that all parties are held accountable and that corrective actions are implemented promptly,” said EPA regional director Michael Santos..

“We will work closely with the plant and local authorities to verify that the facility operates safely moving forward.”The leak has also sparked a broader discussion among Ohio lawmakers about the adequacy of existing chemical safety legislation. During a recent committee hearing, State Senator Rebecca Caldwell called for stricter oversight of industrial facilities that store volatile substances. “While this incident was contained, it underscores the potential risks that communities face when safety protocols are not rigorously enforced,” Caldwell asserted..

“We must consider strengthening reporting requirements and increasing penalties for non‑compliance to safeguard public health.” The mayor’s office indicated that it would cooperate with any legislative initiatives aimed at enhancing emergency preparedness.In the meantime, residents are being encouraged to remain vigilant but not alarmed. Local health officials have set up a dedicated hotline for citizens to report any lingering concerns related to the leak, and routine water testing will continue for the next six months. As the city returns to normalcy, Mayor Greene concluded the briefing by thanking emergency responders, plant workers, and community volunteers for their swift action..

“Our collective response demonstrates the resilience of Ashtabula,” he said. “We have learned valuable lessons, and we will apply them to ensure that our neighbourhood remains safe and thriving.”.