ST. CLAIR COUNTY
EAST ST. LOUIS
Congressional District # 12
ALCOA PROPERTIESEPA ID# ILSFN0508010
Last Updated: March, 2012
In 1902, aluminum production operations began at the North Alcoa site. The site was formerly the location of Pittsburgh Lake which was filled in by waste and fill associated with the Alcoa production operations. The largest volume of material at the site is bauxite residue, which is surrounded by gypsum dikes utilized to contain the bauxite at the site. The bauxite is contained in three large areas, called residue disposal areas (RDA's) located on the northeastern portion of the property. The plant operated until the late 1950's and by the mid 1960's, most of the production facilities had been demolished and the land sold. The site is located in an industrial area with active commercial operations occurring on the southern portion of the property. A recreational area is currently located to the northwest of the site.
This site is a Superfund alternative site with the potentially responsible parties conducting the current work under an RI/FS agreement with Federal and state oversight.
Threats and Contaminants
Site soils are contaminated with inorganic and radionuclide compounds
In December 2001, EPA entered into an administrative order on consent with Alcoa, a PRP for the site, that required the completion of an RI/FS at the site. The RI/FS is underway at the site. The Agency evaluated materials reuse options for site bauxite and fluorogypsum. EPA found that the reuse option was no longer viable. The Agency created operable unit 1 at the site which addresses the majority of the interior of the site. OU2 will address the soils outside of OU1, and groundwater for the entire site. The RI/FS for OU1 evaluates the risk and evaluates cleanup options to address the risk. Alcoo recently completed focused risk assessments for human health and ecological risk. Alcoa is incorporat those studies into a focused feasibility study report. A Record of Decision is currently planned for FY 2012. The Agency has been approached with another potential site redevelopment concept and is in discussions with the PRPs and the developers to investigate further.
Community InvolvementThe City of East St Louis is a PRP and their staff is intimately familiar with the current site progress and has been communicating the progress through the city council.
Congressional InterestCongressional involvement at present consists of working with the developer on potential legislation to support the proposed site reuse.
The Agency and the PRPs are in discussions regarding a potential solar energy redevelopment project.
ContactsRemedial Project Manager, U.S. EPA
dion novak (email@example.com)