Stage of Clean-up: Construction Completed
Conditions at listing (July 1982): The former Koppers Coke Site covers about 45 acres in the Midway Industrial Park in St. Paul, Minnesota. From 1911 to 1979, Koppers operated a facility that converted coal to coke and produced such by-products as COAL TARS and COAL TAR distillates. The company has dismantled and removed all equipment from the site and completed an intensive on-site investigation. It revealed that wastes discharged to the ground in unlined earthen pits and disposed of on the surface contaminate soil and ground water with POLYNUCLEAR AROMATIC HYDROCARBONS, THIOCYANATE, AMMONIA, SULFATES, phenols, OIL, and grease. Based on information currently available, the contamination does not threaten St. Paul's municipal water supply, which comes from the Mississippi River north of Minneapolis. More...
Sources of Contamination:
- Lagoon disposal
- Storage - drums/containers of waste
- Waste pile