U.S. EPA REGION 5
Congressional District # 08
ALGOMA MUNICIPAL LANDFILLEPA ID# WID980610380
Last Updated: December, 2011
Site DescriptionThe 13-acre Algoma Municipal Landfill was leased from Dumman Realty and was operated from 1969 to 1983 by the city of Algoma. In 1970, the landfill received a license from the state to accept municipal refuse. While most of the accepted waste were municipal refuse, paint wastes, lacquers, thinners, and asbestos wastes were also disposed of at the landfill. When the landfill closed in 1983, the city covered it with clay and topsoil. The landfill, which has no liner, is underlain by a sand and gravel aquifer and another deeper aquifer. The two aquifers are hydraulically connected so that water can move between them. The city of Algoma's wells draw on the deeper aquifer, and rural wells draw from both aquifers. The site is within three miles of Lake Michigan. Krohn's Lake, which is used for recreation, is less than one mile away. Approximately 5,000 people depend on groundwater within three miles of the site for drinking water. Approximately 180 people live within one mile of the site, all using private water supplies. The nearest residence is 1,100 feet away from the site boundary. In 1988, the city of Algoma and several companies signed an administrative order on consent (AOC) to perform investigations on the soil and groundwater at the site. These responsible parties (RPs) completed the investigation in 1990 and confirmed that the groundwater was contaminated with volatile organic chemicals (VOCs) and heavy metals. The RPs signed a consent decree (CD) with the United States Environmental Protection Agency (U.S. EPA) and the Wisconsin Department of Natural Resources (WDNR) to design and implement a landfill cap in 1991.
Site ResponsibilityThis site is being addressed through federal, state, and potentially responsible parties' actions.
Threats and ContaminantsIn 1984, U.S. EPA detected VOCs and heavy metals in onsite monitoring wells. An investigation, completed in 1990, confirmed that the groundwater continues to be contaminated with VOCs. Exposure to contaminated groundwater through direct contact or accidental ingestion may be a potential health threat. The potential exists for wetlands, located south of the site, to be affected by the contaminated groundwater that surfaces in the area. However, no release of hazardous materials into the wetlands has occurred.
Cleanup ProgressIn 1990, potentially responsible parties (PRPs), under U.S. EPA monitoring, completed an investigation of the site. The final report indicated that the current landfill cap did not meet state safety standards and that the groundwater was contaminated. Based on the results of the investigation, a new cover that meets state standards was selected as the final remedy in 1990. Construction of the new cover began in early 1993 and was completed in December of that year. Groundwater and landfill gas monitoring will continue, and gas control measures will be applied as well as institutional controls to restrict the use of contaminated groundwater until all cleanup goals have been met. The results of the ongoing groundwater monitoring will be reevaluated every five years for 30 years to ensure the continued effectiveness of the selected remedies. The first reevaluation has been completed. All construction of cleanup remedies is complete; site monitoring is continuing. A third five-year review was completed March 2009. The site remains protective of human health and the environment. Institutional Controls are being reviewed. The next review will be completed in 2014.
ContactsRemedial Project Manager, U.S. EPA
david linnear (email@example.com)
Community Involvement Coordinator, U.S. EPA
AliasesALGOMA MUNI LDFL