Omaha Riverfront Redevelopment Project Brownfields 2004 C. Dale Jacobson, P.E., DEE
Historical Land Use Metal Salvage Yard Railroad Repair Shops Storage Tank Farm Commercial Barge Dock Municipal Waste Incinerator Municipal Solid Waste Recycling Facility
Historical Land Use Burt-Izard Sewer and Pump Station Grace Street Ditch Fire Training Center Construction and Demolition Landfill Small Park Undeveloped Areas
Historical Research Interviews Aerial Photographs Historic Topographic Maps Historic City Maps Sanborn Fire Insurance Maps
Potential Concerns Metals VOCs Petroleum Hydrocarbons Explosive Residues Dioxin and Furan Asbestos PCBs
Regulatory Nebraska Remedial Action Plan Monitoring Act Nebraska Department of Environmental Quality City of Omaha (all property except Railroad Repair Shops) Administrative Order on Consent United States Environmental Protection Agency Union Pacific Railroad
Field Investigation Ground Water Monitoring Wells Soil Borings Ground Water Samples Soil Samples
Analytical Work Soil and Ground Water Analyzed for Metals VOCs and SVOCs Petroleum Hydrocarbons Nitrogen Fertilizer Explosives Dioxin and Furan PCBs
Area-Specific Focus Railroad Repair Shops Petroleum Lead Asbestos Metal Salvage Yard Metals Petroleum Explosives PCBs
Area-Specific Focus Dock Nitrogen Fertilizer Metals Petroleum Asbestos Construction and Demolition Landfill Metals Fire Training Center Petroleum
Area-Specific Focus Municipal Incinerator Dioxin Furan Undeveloped Areas VOCs SVOCs Metals
Site-Specific Target Levels (SSTLs) No Soil Action Levels Established in Nebraska Regulations Calculated Using Soil Analytical Results Identify Compounds of Potential Concern Nine COPCs Identified Determine Human Health Risk
Site-Specific Target Levels (SSTLs) Three Exposure Scenarios Construction Excavation Worker Child at Daycare Commercial Worker
Maximum Contaminant Levels (MCLs) NDEQ-Nebraska Title 118 Establish MCLs for Ground Water Consistent with USEPA MCLs
Soil Samples Exceeding SSTLs
Ground Water Samples Exceeding MCLs
Additional Analytical Results Furan - Not Detected Dioxin - Not Detected Explosives - Not Detected Nitrogen Fertilizer - Detected Petroleum - Detected
Regulatory Compliance Initial Evaluation Remedial Action Plans Submitted to NDEQ Tier I Risk-Based Corrective Action Investigations - UST Locations Evaluation Response Tier I RBCA Reports - No Further Action (NDEQ) Drum Storage Investigations - Clean Closure Under RCRA Regulations (NDEQ)
Remedial Action Engineered Cap 3 to 6 Feet of cm/sec Clay Restrictions Cap Penetration Drinking Water Well Installation Recovered Metals Recycled Off-Site Concrete Crushed and Reused On-Site Petroleum-Impacted Soil Disposal 100,000 C.Y. Nitrogen Fertilizer Recycled On-Site 21,000 C.Y.
Remedial Action Lead-Impacted Soil Disposal 45,000 C.Y. Paint-Impacted Soil Disposal 7,000 C.Y. Asbestos-Impacted Soil Disposal 42,000 C.Y.
Remedial Action Ground Water Remediation Not Required Designated RAC-3 by the NDEQ Ordinance Prohibits Drinking Water Wells within Omaha City Limits
Long-Term Monitoring Program Semi-Annual Inspection and Maintenance of Cap Quarterly Ground Water Monitoring Quarterly Surface Water Monitoring
Additional Improvements Stabilized Missouri River Bank Grace Street Ditch Enclosed Conduit CSO Improvements New Nicholas Street Sewer & Lift Station CSO Improvements Burt-Izard Pump Station CSO Improvements
Current Development Gallup Corporate Campus National Park Service Building
Current Development Miller’s Landing Park Qwest Convention Center and Arena
Current Development Riverboat Concession River City Star River Boat Concession Marina
Future Development Pedestrian Bridge Across Missouri River Retail Shops Condominiums Gallup Campus Build-Out
Brownfields Success Cooperative Effort Between USEPA NDEQ City of Omaha Union Pacific Railroad Changed Impacted Industrial Area to: Qwest Convention Center and Arena Gallup Corporate Campus National Park Service Park Riverfront Trail