E D E D E D E D E D @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? @ A ? MW-12 MW-11 MW-8 MW-9 MW-10 MW-19 MW-4 MW-17 MW-20 MW-21 MW-13 MW-15 MW-1 MW-14 R MW-22 MW-16 MW-18 MW-2 MW-5 MW-6 MW-7 MW-3 MW-24 MW-25 MW-26 MW-23 GP-1 GP-2 GP-3 GP-4 GP-5 GP-6 GP-7 GP-8 GP-9 GP-10 GP-11 GP-12 GP-13 GP-14 GP-15 GP-16 GP-17 GP-18 GP-19 GP-20 GP-21 GP-22 GP-23 GP-24 GP-25 GP-26 GP-27 Document Path: G:\Fort Gratiot Landfill\a_MXD_PDFs\ChemboxFigures_2020\October2019GW_PfasResults_2020Update.mxd ¯ ON-SITE PFAS GROUNDWATER SAMPLING LOCATIONS AND RESULTS FORT GRATIOT LANDFILL FIGURE 6 EGLE FT. GRATIOT LANDFILL, FORT GRATIOT TOWNSHIP, MICHIGAN Sanitary Sewer @ A ? Monitoring Well (DEEP) @ A ? Monitoring Well (SHALLOW) E D PZ Wells Leachate Breakout Trench Contours Fence & < Gas Monitoring Probe Leachate Collection Sump Groundwater Collection Trench Leachate Force Main Site Boundary 1. Green monitoring well chem boxes and well symbols indicate DEEP monitoring wells. 2. Blue monitoring well chem boxes and well symbols indicate SHALLOW monitoring wells 3. All results are reported in nanograms per liter (ng/L) or parts per trillion (ppt) 4. -Red Text and Yellow highlighting indicates that the concentrations exceed regulatory cleanup criteria 340 0 150 300 75 Feet 9/26/2018 PFOS 139 PFOA 84 PFAS (Total) 664.01 SP-2 5/8/2018 PFOS 140 PFOA 30 PFAS (Total) 500 SP-6 12/5/2018 4/25/2019 PFOS ND ND PFOA ND ND PFAS (Total) ND ND MW-2 12/4/2018 4/25/2019 PFOS ND ND PFOA ND ND PFAS (Total) ND 3.60 MW-1 *(Abandoned) 12/4/2018 4/25/2019 PFOS ND ND PFOA ND ND PFAS (Total) ND ND MW-4 12/5/2018 4/25/2019 PFOS ND ND PFOA ND ND PFAS (Total) ND 1.85 MW-5 12/5/2018 4/25/2019 PFOS ND ND PFOA 5 1.96 PFAS (Total) 24 21.25 MW-8 12/5/2018 4/25/2019 10/2/2019 PFOS 6 2.72 7.19 PFOA 41 5.88 26 PFAS (Total) 70 22.48 49.88 MW-12 12/4/2018 4/25/2019 10/1/2019 PFOS ND ND 2.56 PFOA ND ND ND PFAS (Total) ND ND 2.56 MW-18 12/4/2018 4/25/2019 10/3/2019 PFOS ND ND 2.76 PFOA ND ND ND PFAS (Total) ND 17.07 2.76 MW-21 4/25/2019 10/2/2019 PFOS 63.5 100 PFOA 11.8 11.6 PFAS (Total) 152.27 160.85 MW-22 12/5/2018 4/25/2019 10/1/ 2019 PFOS ND 8.57 ND PFOA 3 3.37 ND PFBS 3,100 4,790 2,310 PFAS (Total) 3,141 4,845 2,325 MW-23 10/1/2019 PFOS 4.41 PFOA 2.45 PFAS (Total) 18.19 MW-26 12/5/2018 4/25/2019 11/25/2019 PFOS 340 386.0 164.0 PFOA 30 35.9 29.2 PFAS (Total) 382 447.16 261.69 MW-14/14R