This removal action consists of the cleaning and closure of existing 15- and 24-inch public lateral sewage discharge property line storm drain (“PLSD”) pipes to remove and prevent polychlorinated biphenyls (“PCBs”) and other hazardous substances from entering the Lower Duwamish Waterway (“LDW”). This removal action is intended to prevent continued discharge of stormwater through known PCB contamination to the LDW.
The Jorgensen Forge Outfall Site consists of two outfall pipes, a 24-inch and adjacent 15-inch, buried just south of the current Jorgensen Forge facility’s northern boundary with the adjacent Boeing Plant 2 facility. Both pipes discharged into the LDW.