Site Remediation

— East End of the Response Area:
—— Sampling activities are nearly complete near the OH-PA state line north of Taggart Street. The sampling results will inform the mitigation alternatives of soils and sediments with low levels of derailment-related contaminants that exceed screening criteria.
—— Discrete areas between the tracks where low-level exceedances of derailment-related chemicals were identified are being excavated and disposed offsite.
—— Additional updates on the schedule of the remediation and related activity will be provided as plans are finalized. The community should anticipate additional remediation equipment and truck traffic on Taggart Street.

— Decommissioning continues:
—— Frac Tank Farms. Confirmation sampling identified one discrete area of low-level exceedance of cleanup standards. This area will removed within the next few weeks and, after excavation is complete, the area will be regraded and restored.
—— Smaller Storage Tanks Area. Confirmation sampling has been completed and approved. This area will be graded and revegetated as part of the ongoing site restoration. Rain water collected in the former tank containment has been approved for flow to Sulphur Run.
—— Former Big Blue Tank Area. Confirmation sampling identified three discrete areas of low-level exceedances of cleanup standards beneath the liner and these areas have undergone additional delineation to ensure derailment-related chemicals are fully identified prior to excavation. Two of the three areas have been excavated, and the final area is anticipated to be completed within the next few weeks. After excavation is complete, the remaining secondary containment walls will be removed, and the area will be regraded and restored.

— Final Appendix E confirmation soil sampling is complete, and thirteen areas of low-level exceedances identified during the Appendix E investigations to date have been removed and disposed. Where exceedances of final cleanup standards were identified, those areas have undergone additional delineation to ensure derailment-related chemicals were fully identified. Once delineation is complete, the areas shall be excavated and the materials disposed over the next few weeks.

— Air monitoring for worker personal sampling continues sitewide. Analytical sampling and air monitoring continue within the tank farms, around the discrete areas of excavation, and in association with the sheet pile operations. This includes perimeter sampling and monitoring.

— Ongoing monitoring of surface water, groundwater, and drinking water wells continues.