Congressional District # 08
RASMUSSEN'S DUMPEPA ID# MID095402210
Last Updated: September, 2014
The Rasmussen's Dump (Rasmussen) Superfund site is located in a rural area on Spicer Road in Green Oak Township, Livingston County, Michigan, 40 miles west of Detroit and about 1.5 miles northeast of Hamburg. The unlicensed dump had accepted domestic and industrial wastes for disposal during the 1960s and early 1970s. Drummed and other industrial wastes were also disposed of at other locations on site. The dump was never properly capped and "closed" prior to termination of operations. Sand and gravel mining, which began after closure in 1972, undermined the landfill and resulted in the redistribution of fill and drummed wastes. Low levels of volatile organic compound (VOC) groundwater contamination were detected in 1981.
The United States Environmental Protection Agency (EPA) placed the Rasmussen site on the National Priorities List (NPL) in September 1983.
Site ResponsibilityThe Rasmussen's Dump site is being addressed through potentially responsible party (PRP) actions under state and federal oversight.
Threats and Contaminants
A plume of groundwater contaminated with VOCs extends from the Rasmussen site. Drinking the contaminated water could lead to human health risks.
Results of soil sampling conducted by the Michigan Department of Environmental Quality (MDEQ) had revealed polychlorinated biphenyl (PCB) and VOCs contamination near a drum pile on the eastern side of the site. Human health risks could have occurred due to ingestion of or direct contact with the contaminated soil.
In 1984, EPA's Emergency Response Team removed 3,000 55-gallon chemical drums and 250 cubic yards of contaminated soil from the landfill. In 1985, the state installed a fence around the Rasmussen site to reduce the potential for people to come into contact with residual contaminated soil. In August 1989, EPA issued an Administrative Order on Consent (AOC) to the potentially responsible parties (PRPs) for the further removal of drums, wastes, and visibly-contaminated soils. Eleven PRPs signed the AOC, which became effective in August 1989. Roughly 650 drums were unearthed and sent to Resource Conservation and Recovery Act facilities for disposal. The interim cleanup work was completed in February 1990.
EPA issued a Record of Decision (ROD) that identified the site cleanup plan on March 28, 1991. The remedy constructed at the Rasmussen site included a solid waste landfill cap and a groundwater pump-and-treat system.
Operation and Maintenance (O&M) activities are ongoing. Data from the early O&M monitoring indicated that revisions were required to capture and treat the groundwater plume as required by the ROD.
EPA issued a ROD Amendment in July 2001, which allowed the PRPs to treat all groundwater plume fragments with in situ ozone/oxygen oxidation. The ozone/oxygen system equipment has been installed and is operational. Contingency plans included resuming the pump-and-treat action if the ozone/oxygen system had not reduced the ground water contamination to clean up standards within three years. The ozone/oxygen system remains as the remedy.
EPA issued the first five-year review (FYR) report for the Rasmussen site on August 28, 2000. The remedy was found to be protective of the public health and the environment. Since start up, several adjustments have been made to the ozone/oxygen system to continue the removal of contamination. In October 2003, chemical monitoring had indicated satisfactory progress toward remedial goals.
The second FYR report was issued on August 25, 2005. EPA found that the remedy at Rasmussen is protective of human health and the environment over the short term because the dump had been capped and the ozone sparging system was functioning to reduce the contaminants of concern in the groundwater contaminant plume. However, in order for the remedy to be protective in the long-term, an institutional control (IC) study needed to be performed to ensure long-term stewardship of the site. The PRPs provided EPA with a written commitment to perform an IC Study to assist in the evaluation of the long-term protectiveness of the ICs for the Rasmussen site.
The third FYR report was issued on March 30, 2010. EPA again found that the remedy at Rasmussen continues to be protective of human health and the environment over the short term. However, in order for the remedy to be protective in the long-term, the groundwater cleanup standards need to be achieved, the northern and southerm plumes need to be fully characterized and delineated, and restrictive covenants for the Rasmussen site and a portion of the adjacent Spiegelberg property needed to be implemented. EPA, MDEQ, and the PRPs are currently working towards resolving these outstanding items. The PRPs also continue to submit quarterly groundwater monitoring reports to EPA for review.
EPA will complete the fourth FYR at the Rasmussen site by March 30, 2015.
ContactsRemedial Project Manager, U.S. EPA
howard caine (email@example.com)
Community Involvement Coordinator, U.S. EPA