EPA EPA Begins Review of the St. Regis Paper Co. Superfund Site Leech Lake Reservation, Cass County, Minnesota U.S. Environmental Protection Agency (EPA) is conducting a five- year review (FYR) of the St. Regis Paper Co. Superfund site located within the Leech Lake Band of Ojibwe Reservation in Cass County. The Superfund law requires regular checkups of sites that have been cleaned up with waste managed on site - to make sure the cleanup continues to protect people and the environment. This is the seventh FYR of the site. Cleanup of sludge, visibly contaminated soil and groundwater contaminated by wood-treatment chemicals - primarily dioxins and pentachlorophenol - began in the 1980s by the state of Minnesota and included: Excavating and moving contaminated soil to an on-site hazardous waste landfill. Installing a treatment system for contaminated groundwater. Providing public water to residents in the affected area. Establishing a groundwater monitoring well network. Since 1995, the responsible parties have continued to monitor and treat contaminated groundwater, and maintain the on-site hazardous waste landfill, under EPA oversight. The FYR will list additional recommendations for this waste management. In addition to the FYR, planning is underway for the soil cleanup in residentially- zoned areas of the site, as well as for the groundwater investigation in the Fox Creek River Valley. The five-year-review is an opportunity for you to tell EPA about site conditions and any concerns or questions you have. More information, such as site documents, are available online at www.epa.gov/superfund/st-regis-paper, This review should be completed by July 2025. Contact: Phil Gurley Community Involvement Coordinator Remedial Project Manager 312-886-4448 gurley.philip@epa.gov Zack Sasnow 312-886-0258 sasnow.zack@epa.gov You may also call EPA toll-free at 800-621-8431, 8:00 a.m. to 4:30 p.m., weekdays. EPA EPA Begins Review of the St. Regis Paper Co. Superfund Site Leech Lake Reservation , Cass County , Minnesota U.S. Environmental Protection Agency ( EPA ) is conducting a five- year review ( FYR ) of the St. Regis Paper Co. Superfund site located within the Leech Lake Band of Ojibwe Reservation in Cass County . The Superfund law requires regular checkups of sites that have been cleaned up with waste managed on site - to make sure the cleanup continues to protect people and the environment . This is the seventh FYR of the site . Cleanup of sludge , visibly contaminated soil and groundwater contaminated by wood - treatment chemicals - primarily dioxins and pentachlorophenol - began in the 1980s by the state of Minnesota and included : Excavating and moving contaminated soil to an on - site hazardous waste landfill . Installing a treatment system for contaminated groundwater . Providing public water to residents in the affected area . Establishing a groundwater monitoring well network . Since 1995 , the responsible parties have continued to monitor and treat contaminated groundwater , and maintain the on - site hazardous waste landfill , under EPA oversight . The FYR will list additional recommendations for this waste management . In addition to the FYR , planning is underway for the soil cleanup in residentially- zoned areas of the site , as well as for the groundwater investigation in the Fox Creek River Valley . The five - year - review is an opportunity for you to tell EPA about site conditions and any concerns or questions you have . More information , such as site documents , are available online at www.epa.gov/superfund/st-regis-paper , This review should be completed by July 2025. Contact : Phil Gurley Community Involvement Coordinator Remedial Project Manager 312-886-4448 gurley.philip@epa.gov Zack Sasnow 312-886-0258 sasnow.zack@epa.gov You may also call EPA toll - free at 800-621-8431 , 8:00 a.m. to 4:30 p.m. , weekdays .