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A 2008 investigation identified the Milwaukee Die Cast Company, located at 4132 North Holton Street in the City of Milwaukee, as the primary source of polychlorinated biphenyls (PCB’s) that are coating sewers located west of the Milwaukee River along Humboldt Avenue between Capitol Drive and Locust Avenue known as ‘Basin H’. The United States Environmental Protection Agency (USEPA) has since remediated the PCB’s at the business site. MMSD is now preparing to remove and safely dispose of PCB contaminated sediment that remains in the sewers. As both the District and the City have sewers contaminated with PCB’s, the two parties have joined into an intergovernmental cooperation agreement to conduct the PCB sediment cleaning as a joint effort. The District will lead all design and construction activities and will be the prime coordinator with USEPA. The City will review and comment on activities as necessary and reimburse the District for appropriate costs.
A qualified PCB abatement contractor will use powerful vacuum equipment and specially outfitted trucks with sealed liquid containers to conduct the cleaning process through various manholes located along North Humboldt Boulevard and in Kern and Pleasant Valley Parks. Precautions will be made to secure the temporary worksites and prevent any sediment from exiting the sewers.
Parks will be open to the public during the project and any limited impacts to park areas such as tree removal will be remedied as part of the project scope. There will be minimal traffic impacts during the project.
Neighborhood outreach activities and at least one public open house will be conducted before the PCB remediation begins in Fall 2020.
Construction will occur during the daytime, Monday through Friday. The contractor cannot work outside these hours without prior approval from MMSD and the City of Milwaukee.
If you have any questions or concerns, please call: Keith Kalinger, P.E., MMSD Senior Project Manager, (414) 225‐2064, firstname.lastname@example.org