Congressional District # 03
TOMAH MUNICIPAL SANITARY LANDFILLEPA ID# WID980610307
Last Updated: December, 2011
Site DescriptionThe Tomah Municipal Sanitary Landfill, located in Monroe County, Wisconsin, is a landfill that encompasses approximately 18 acres of the 40-acre site. The city of Tomah owned and operated the landfill from 1959 to 1979 and was licensed by the State of Wisconsin to accept municipal wastes. The landfill is unlined. A local facility, Union Camp Corporation, notified the United States Environmental Protection Agency (U.S. EPA) that it had sent to the landfill approximately 1,514 drums of wastes, containing barium, chromium, lead, spent solvents, ethyl acetate, and trichloroethylene (TCE). The city of Tomah has a population of approximately 7,300 people. Municipal wells, serving Tomah, are located within a three-mile radius of the site. Approximately 2,000 people live within a one-mile radius of the site and use private wells for drinking water supplies. A freshwater wetland is located within 1,000 feet of the landfill.
Site ResponsibilityThis site is being addressed through federal and potentially responsible parties actions.
Threats and ContaminantsIn 1984, U.S. EPA inspected the site and confirmed that onsite groundwater is contaminated with heavy metals and volatile organic compounds (VOCs).
In 1993, the city of Tomah voluntarily hooked-up an unincorporated subdivision, adjacent to the landfill, to municipal water. An administrative order on consent (AOC), dated January 11, 1994, to perform a remedial investigation and feasibility study (RI/FS), was entered into voluntarily by the potentially responsible parties (PRPs), including the city of Tomah, Union Camp Corporation (Union Camp), and the United States Department of Veterans Affairs with U.S. EPA.
The RI/FS primarily consists of the collection of groundwater and landfill gas data to support remedial decisions at the site. The PRPs have agreed to a presumptive remedy approach to address the site contamination. During spring 1996 under direction of U.S. EPA, an active landfill gas extraction system was installed along the southern boundary of the landfill, adjacent to some residential properties, to prevent further methane migration. A final RI report, dated July 15, 1996, was submitted by the PRPs. As part of the ongoing RI/FS and presumptive remedy, the site has been divided into two operable units (OUs): source control and groundwater. A final FS for source control was approved in December 1996.
The record of decision (ROD) for the source control was signed in September 1997. The selected remedy in the ROD included a dual barrier cap, expansion of the existing gas collection system, and monitoring. An AOC for remedial design (RD) was signed on September 30, 1998 between U.S. EPA and Union Camp. Union Camp completed the RD in January 2000. U.S. EPA issued a unilateral administrative order (UOA) for remedial action (RA) to Union Camp on September 30, 1999. Union Camp completed construction of the source control remedy (landfill cap and gas collection system) in summer 2000. U.S. EPA and WDNR conducted the final inspection on August 16, 2000. The consent decree, signed on February 29, 2002, for the RA, superseded the UAO.
The ROD for the groundwater OU was signed in September 2003. The selected remedy in the ROD included monitored natural attenuation and monitoring Deer Creek. The long-term monitoring program, initiated under the source control remedy, will be evaluated and enhanced as part of the groundwater RD/RA. The Preliminary Close-out Report was signed in December 2003. The groundwater OU RD/RA consent decree was signed on March 31, 2005. The RD was completed in July 2005. Construction of the monitoring wells for the remedy was completed in summer 2005. U.S. EPA and WDNR conducted the pre-final inspection on November 1, 2005 and the "punch list" of tasks were completed on February 1, 2006. The long-term groundwater monitoring program has started and is expected last for 40 to 50 years.
The first Five-Year Review was completed in April 2005 and it was determined that the cleanup continues to protect human health and the environment. The second Five-Year Review was completed on January 11, 2010 and found that the remedy remains protective of human health and the environment. The next five-year review will be completed in 2015.
ContactsRemedial Project Manager, U.S. EPA
thomas smith (firstname.lastname@example.org)
Community Involvement Coordinator, U.S. EPA
AliasesTOMAH MUNICIPAL SAN LDFL