Lucas Landfill, located at 2200 Mauck Road, is an inactive solid waste disposal facility that operated from 1972 to 1983. The property currently consists of several large trenches on an open field area toward the center and a portion is covered with trees and vegetation, with various layers of waste and materials scattered throughout. A nearby resident self-sampled their drinking water for PFAS and provided EGLE with the results. In 2022, EGLE sampled drinking water at seven nearby residents to ensure public health. One well detected 1,4-Dioxane and PFOA. Residential well sampling continued in the following years, including additional wells and the well at Lucas Landfill. Drinking water sample results exceeded criteria at two locations. The highest result was 48.2 ppt PFOA (compared to 8 ppt). Additional PFAS compounds were detected in both wells but not above criteria. In 2023, EGLE conducted a geophysical survey to identify buried waste that may be the source of 1,4-Dioxane and PFAS that was detected in nearby drinking water wells. The survey did not detect anomalies consistent with buried tanks, drums, or other large items that could be causing off-site contamination. A groundwater investigation commenced in December 2024 to delineate the 1,4-Dioxane and PFAS contamination. Six shallow groundwater monitoring wells were installed within the glacial drift and sampled for PFAS, one of which exceeded criteria with a result of 45 ppt PFOA (compared to 8 ppt) and 23 ppt PFOS (compared to 16 ppt). Another monitoring well was perched and had a result of 33 ppt PFOA. Groundwater flow direction is to the north – northwest based on monitoring well data, general topography, and impacted residential wells.
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EGLE, DHHS, and local health reviewed residential well logs and developed a sampling plan. Sixteen residential wells have been sampled to date for PFAS, with detections in two of the wells. Both homeowners are being provided bottled water primarily due to 1,4-Dioxane. The next resampling event is scheduled for late fall 2025 to ensure no additional health response is necessary.
Clay Joupperi, JoupperiC1@Michigan.gov or 517-242-7394
