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PUMP AND TREAT METHOD ...NEED COST ESTIMATE FOR GW REMEDIATION

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TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD 9/30/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U CL-14BRD 10/3/2005 1 1 1 NA 1 1 1 2 5 2 1 1 5 0.5 1 1 1 1 1 0.5 1 200 1 20 10 1 10 1 50 20 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 1 2 5 1 2 2 0.5 1 2 1 2 1 10 1 5 2 1 1 1 1 1 CL-14BRD Dup 10/3/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 1 of 42 2 1 1 NA 1 1 1 2 5 2 3 2 5 1 1 1 1 2 1 0.5 1 100 5 20 10 1 10 1 50 20 5 1 1 1 2 2 2 3 2 1 2 2 2 2 1 2 5 1 2 2 0.5 2 1 2 2 2 10 1 5 3 2 2 2 2 2 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-14BRD 10/24/2006 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-14BRM 9/30/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 1.8 0.5 0.9 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U CL-14BRM 10/3/2005 1 1 1 NA 1 1 1 2 5 2 1 1 5 0.5 1 1 1 1 1 0.5 1 200 1 20 10 1 10 1 241 20 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 1 2 5 1 2 2 0.5 1 2 1 2 1 10 1 5 2 1 1 1 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] CL-14B 10/24/2 TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter CL-14BRD 9/30/2004 0.5 20 1 0.5 2 10 1 1 1 2 1 2 20 2 2.3 1 CL-14BRD Dup 10/3/2005 U U U U NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA Page 2 of 42 U U U U U U U U U U U 0.5 5 1 0.5 0.6 5 0.5 0.5 2 0.5 0.5 0.5 NA 0.5 1 1 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 1.4 2.4 10 0.5 1 0.5 U U U U U U U U U U CL-14BRM 10/3/2005 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc U U U U U CL-14BRM 9/30/2004 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U 1 20 2 1 2.1 10 1 1 2 2 1 2 20 2 4 2 CL-14BRD 10/24/2006 tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 5/14/2022 U U U U U U U U U U U U U U U U CL-14BRD 10/3/2005 U U U U 0.5 20 1 0.5 1 10 1 1 1 2 1.9 2 20 2 2 1 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] CL-14B 10/24/2 TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRM CL-14BRD 10/24/2006 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 571 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-14D 9/30/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.6 0.5 7.6 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-14D 5/3/2005 U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U Page 3 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-14D DUP 5/3/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 5.1 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-14D 10/3/2005 1 1 1 NA 1 1 1 2 5 2 1 1.3 5 0.5 1 1 1 1 1 0.5 1 200 1 20 10 1 10 1 50 20 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 6 2 5 1 2 2 0.5 1 2 1 2 1 10 1 5 2 1 1 1 1 1 CL-14D 5/19/2006 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1 1 0.5 5 1 1 1 2 5 2 5 1 5 0.5 1 1 1 1 1 0.5 1 50 1 20 NA 1 10 1 50 NA 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 1.6 0.5 NA 1 2 2 0.5 1 NA 1 NA 1 10 1 5 5 1 1 1 1 1 CL-14 10/24/2 U U U UJ U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter CL-14BRM CL-14BRD 10/24/2006 CL-14D 9/30/2004 CL-14D 5/3/2005 CL-14D DUP 5/3/2005 CL-14D 10/3/2005 CL-14D 5/19/2006 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 5 1 0.5 0.5 5 0.5 0.5 2 0.5 0.5 0.5 NA 0.5 1 1 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 73.4 316 10 0.5 1 0.5 U U U U U U U U U U U U U U Page 4 of 42 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 43.8 306 10 0.5 1 0.5 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 44 304 10 0.5 1 0.5 U U U U U U U U U U U U U U 0.5 20 1 0.5 1 10 1 1 1 2 35.4 270 20 2 2.6 1.3 U U U U U U U U U U U U 0.5 20 1 0.5 1 10 1 1 0.5 2 10 2 NA 2 2 1 CL-14 10/24/2 U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD CL-14D 10/24/2006 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 5.1 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-15D 6/13/2005 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 5 0.5 0.5 0.5 0.5 0.5 CL-15S 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 5 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 3.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-16 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-17D 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.8 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-17S 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-18 6/13/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- CL-14BRD CL-14D 10/24/2006 0.5 5 1 0.5 0.5 5 0.5 0.5 2 0.5 28.6 272 NA 0.5 1 1 U U U U U U U U U U U U U CL-15D 6/13/2005 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 CL-15S 6/13/2005 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 CL-16 6/13/2005 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 CL-17D 6/13/2005 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 4.9 1 10 0.5 1 0.5 CL-17S 6/13/2005 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 1.3 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 Page 6 of 42 CL-18 6/13/20 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD CL-18D 6/13/2005 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-18S 6/13/2005 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-18S DUP 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 7 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-19D 6/13/2005 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 11.1 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-19S 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1BRD 8/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 1 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1BR 9/28/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter CL-14BRD CL-18D 6/13/2005 CL-18S 6/13/2005 CL-18S DUP 6/13/2005 CL-19D 6/13/2005 CL-19S 6/13/2005 CL-1BRD 8/12/2004 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U Page 8 of 42 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.6 5 0.5 0.5 0.5 0.5 31.4 1 10 0.5 1 0.5 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 6.1 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 CL-1BR 9/28/20 U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD CL-1BRD 9/28/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U UJ U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U UJ U U UJ U U UJ UJ U UJ U U U U UJ U U U U U U U U U U UJ U U U U U CL-1BRD 10/3/2005 2 1 1 NA 1 1 1 2 5 2 3 2 5 1 1 1 1 2 1 0.5 1 100 5 20 10 1 10 1 50 20 5 1 1 1 2 2 2 3 2 1 2 2 2 2 1 2 5 1 2 2 0.5 2 1 2 2 2 10 1 5 3 2 2 2 2 2 CL-1BRD 10/24/2006 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 9 of 42 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-1BRM 8/12/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 1 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1BRM 9/28/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1BRM 10/3/2005 U UJ U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U UJ U U UJ U U UJ UJ U UJ U U U U UJ U U U U U U U U U U UJ U U U U U 2 1 1 NA 1 1 1 2 5 2 3 2 5 1 1 1 1 2 1 0.5 1 100 5 20 10 1 10 1 50 20 5 1 1 1 2 2 2 3 2 1 2 2 2 2 1 2 5 1 2 2 0.5 2 1 2 2 2 10 1 5 3 2 2 2 2 2 CL-1BR 10/24/2 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter CL-14BRD CL-1BRD 9/28/2004 CL-1BRD 10/3/2005 CL-1BRD 10/24/2006 CL-1BRM 8/12/2004 CL-1BRM 9/28/2004 CL-1BRM 10/3/2005 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 U U UJ U U U U UJ U U U U U U U U 1 20 2 1 2 10 1 1 2 2 1 2 20 2 4 2 U U U U U U U U U U U U U U U U Page 10 of 42 0.5 5 1 0.5 0.5 5 0.5 0.5 2 0.5 0.5 0.5 NA 0.5 1 1 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U UJ U U U U UJ U U U U U U U U 1 20 2 1 2 10 1 1 2 2 1 2 20 2 4 2 CL-1BR 10/24/2 U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD CL-1BRM 10/24/2006 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 2 NA 0.5 2 0.5 10 NA 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 NA 0.5 0.5 0.5 0.5 0.5 NA 0.5 NA 0.5 2 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-1D 8/12/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 1 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1D 9/28/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 11 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1D 5/2/2005 U UJ U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U UJ U U UJ U U UJ UJ U UJ U U U U UJ U U U U U U U U U U UJ U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1D 10/3/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 2 1 1 NA 1 1 1 2 5 2 3 2 5 1 1 1 1 2 1 0.5 1 100 5 20 10 1 10 1 50 20 5 1 1 1 2 2 2 3 2 1 2 2 2 2 1 2 5 1 2 2 0.5 2 1 2 2 2 10 1 5 3 2 2 2 2 2 CL-1D 5/19/2006 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1 1 0.5 5 1 1 1 2 5 2 5 1 5 0.5 1 1 1 1 1 0.5 1 50 1 20 NA 1 10 1 50 NA 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 1 0.5 NA 1 2 2 0.5 1 NA 1 NA 1 10 1 5 5 1 1 1 1 1 CL-1D 10/24/2 U U U UJ U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter CL-14BRD CL-1BRM 10/24/2006 CL-1D 8/12/2004 CL-1D 9/28/2004 CL-1D 5/2/2005 CL-1D 10/3/2005 CL-1D 5/19/2006 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 0.5 NA 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U Page 12 of 42 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U UJ U U U U UJ U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U 1 20 2 1 2 10 1 1 2 2 1 2 20 2 4 2 U U U U U U U U U U U U U U U U 0.5 20 1 0.5 1 10 1 1 0.5 2 1 2 NA 2 2 1 CL-1D 10/24/2 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD CL-1D 10/24/2006 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 2 NA 0.5 2 0.5 10 NA 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 NA 0.5 0.5 0.5 0.5 0.5 NA 0.5 NA 0.5 2 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-1M 8/12/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 1 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1M 9/27/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 13 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1M 5/2/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.6 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1M 10/3/2005 U U U U U U U U U U U U U U U U U U U U U UJ UJ U U UJ U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 2 1 1 NA 1 1 1 2 5 2 3 2 5 1 1 1 1 2 1 0.5 1 100 5 20 10 1 10 1 50 20 5 1 1 1 2 2 2 3 2 1 2 2 2 2 1 2 5 1 2 2 0.5 2 1 2 2 2 10 1 5 3 2 2 2 2 2 CL-1M 5/19/2006 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1 1 0.5 5 1 1 1 2 5 2 5 1 5 0.5 1 1 1 1 1 0.5 1 50 1 20 NA 1 10 1 50 NA 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 1 0.5 NA 1 2 2 0.5 1 NA 1 NA 1 10 1 5 5 1 1 1 1 1 CL-1M 10/24/2 U U U UJ U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter CL-14BRD CL-1D 10/24/2006 CL-1M 8/12/2004 CL-1M 9/27/2004 CL-1M 5/2/2005 CL-1M 10/3/2005 CL-1M 5/19/2006 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 0.5 NA 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U Page 14 of 42 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U UJ U U U U U U U U U U U 1 20 2 1 2 10 1 1 2 2 1 2 20 2 4 2 U U U U U U U U U U U U U U U U 0.5 20 1 0.5 1 10 1 1 0.5 2 1 2 NA 2 2 1 CL-1M 10/24/2 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD CL-1M 10/24/2006 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.6 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-1MD 8/12/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 1 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1MD 9/28/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 15 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1MD 5/2/2005 U UJ U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U UJ U U UJ U U UJ UJ U UJ U U U U UJ U U U U U U U U U U UJ U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-1MD 10/3/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 2 1 1 NA 1 1 1 2 5 2 3 2 5 1 1 1 1 2 1 0.5 1 100 5 20 10 1 10 1 50 20 5 1 1 1 2 2 2 3 2 1 2 2 2 2 1 2 5 1 2 2 0.5 2 1 2 2 2 10 1 5 3 2 2 2 2 2 CL-1MD 5/19/2006 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 1 1 0.5 5 1 1 1 2 5 2 5 1 5 0.5 1 1 1 1 1 0.5 1 50 1 20 NA 1 10 1 50 NA 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 1 0.5 NA 1 2 2 0.5 1 NA 1 NA 1 10 1 5 5 1 1 1 1 1 CL-1M 10/24/2 U U U UJ U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter CL-14BRD CL-1M 10/24/2006 CL-1MD 8/12/2004 CL-1MD 9/28/2004 CL-1MD 5/2/2005 CL-1MD 10/3/2005 CL-1MD 5/19/2006 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 5 1 0.5 0.5 5 0.5 0.5 2 0.5 0.5 0.5 NA 0.5 1 1 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U Page 16 of 42 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U UJ U U U U UJ U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U 1 20 2 1 2 10 1 1 2 2 1 2 20 2 4 2 U U U U U U U U U U U U U U U U 0.5 20 1 0.5 1 10 1 1 0.5 2 1 2 NA 2 2 1 CL-1M 10/24/2 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-14BRD CL-1MD 10/24/2006 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 2 NA 0.5 2 0.5 10 NA 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 NA 0.5 0.5 0.5 0.5 0.5 NA 0.5 NA 0.5 2 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 CL-20D 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 17 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-20S 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-21D 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 3.4 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter 5/14/2022 CL-14BRD CL-1MD 10/24/2006 CL-20D 6/13/2005 CL-20S 6/13/2005 CL-21D 6/13/2005 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 0.5 NA 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA U U U U U U U U U U U U U U U Page 18 of 42 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 8.6 1 10 0.5 1 0.5 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 6 5 0.5 0.5 0.5 0.5 255 1 10 0.5 1 0.5 U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 1] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-21S 6/13/2005 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 14.3 10 0.5 0.5 0.5 0.5 0.5 0.5 1 3.8 0.5 0.5 0.5 0.5 0.5 0.5 3.2 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-22D 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 2.1 0.5 0.5 0.5 0.5 0.5 0.5 67.3 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 CL-22M 6/13/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 19 of 42 0.5 1.1 0.5 NA 0.5 0.5 7.1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 3.3 0.5 0.5 0.5 1.8 0.5 330 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.8 5 0.5 2 5.9 1.7 0.5 0.5 0.5 0.5 CL-23D 10/26/2006 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U J U U U U U U U U U U U U U U U U U 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 500 5 20 NA 5 20 5 100 NA 20 5 5 5 5 5 5 5 5 5 5 5 5 5 31.5 5 NA 5 5 5 5 5 NA 5 NA 5 20 5 10 5 5 5 5 5 5 U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U CL-23M 10/26/2006 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 500 5 20 NA 5 20 5 100 NA 20 5 5 5 5 5 5 5 5 5 5 5 5 5 311 5 NA 5 5 5 5 5 NA 5 NA 5 20 5 10 5 5 5 5 5 5 U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U CL-23M DUP 10/26/2006 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 500 5 20 NA 5 20 5 100 NA 20 5 5 5 5 5 5 5 5 5 5 5 5 5 310 5 NA 5 5 5 5 5 NA 5 NA 5 20 5 10 5 5 5 5 5 5 U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 2] CL-24 10/25/2 TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- CL-21S 6/13/2005 0.5 10 0.5 0.5 18.1 5 0.5 0.5 0.5 0.5 2220 1 10 0.5 1 0.5 CL-22D 6/13/2005 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 199 5 0.5 0.5 0.5 0.5 4860 25.5 10 1.8 1 0.5 CL-22M 6/13/2005 U U U U U U U U U U U U 0.5 10 0.5 0.5 2340 5 4 8 0.5 0.5 46500 20.8 10 85.3 1 5.2 CL-23D 10/26/2006 U U U U U U U U U 5 50 5 5 23.1 50 5 5 5 5 239 5.2 NA 5 10 5 U UJ U U U U U U U U U U CL-23M 10/26/2006 5 50 5 5 256 50 5 5 5 5 530 5 NA 5 10 5 U UJ U U U U U U U U U U U CL-23M DUP 10/26/2006 5 50 5 5 254 50 5 5 5 5 528 5 NA 5 10 5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 Page 20 of 42 U UJ U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 2] CL-24 10/25/2 TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 CL-24D CL-21S 10/25/2006 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 1.3 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 CL-24S 10/25/2006 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 21 of 42 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U CL-25D 10/25/2006 0.5 5.7 0.5 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 2 NA 0.5 2 0.5 10 NA 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 30.6 0.5 NA 0.5 0.5 0.5 0.5 0.5 NA 0.5 NA 0.5 2 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U CL-25M 10/25/2006 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 6.9 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 2] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter 5/14/2022 CL-24D CL-21S 10/25/2006 CL-24S 10/25/2006 CL-25D 10/25/2006 CL-25M 10/25/2006 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 5 1 0.5 1.1 5 0.5 0.5 2 0.5 5.5 0.5 NA 0.5 1 1 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA U U U U U U U U U U U U U Page 22 of 42 0.5 5 1 0.5 1.1 5 0.5 0.5 2 0.5 7.9 0.5 NA 0.5 1 1 U U U U U U U U U U U U U 0.5 5 0.5 0.5 13.3 5 0.5 0.5 0.5 0.5 18.5 1.3 NA 0.5 1 0.5 U UJ U U U U U U U U U U 0.5 5 1 0.5 4.4 5 0.5 0.5 2 0.5 11.5 0.5 NA 0.5 1 1 U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 2] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 MD-102 7/12/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 41.1 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-104 7/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U 0.5 5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 12.7 0.5 0.5 0.5 0.5 0.5 58.6 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-104 6/14/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U Page 23 of 42 0.5 4 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 14.2 0.5 0.5 0.5 0.5 0.5 62.8 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-14 2/5/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 19.6 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-14 7/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 22.8 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-14 1/10/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 27.7 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-1 2/5/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- MD-102 7/12/2004 0.5 10 0.5 0.5 121 5 0.5 0.5 0.5 0.5 21200 1 10 0.5 1 0.5 MD-104 7/12/2004 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 545 5 0.5 0.5 0.5 0.5 55600 1 10 0.5 1 0.5 MD-104 6/14/2005 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 530 5 0.5 0.5 0.5 0.5 62600 1 10 0.5 1 0.5 MD-14 2/5/2004 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 2.4 1 10 0.5 1 0.5 MD-14 7/12/2004 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 MD-14 1/10/2005 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 Page 24 of 42 MD-1 2/5/20 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 MD-102 MD-17 2/5/2004 0.5 5.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 1.4 0.5 0.5 0.5 0.5 0.5 58.8 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-17 7/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 4.4 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 66.1 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-17 1/10/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U Page 25 of 42 0.5 5.9 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 2.7 0.5 0.5 0.5 0.5 0.5 129 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-18 2/5/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-18 7/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 1.8 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-18 1/10/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 1.8 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-2 2/4/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- MD-102 MD-17 2/5/2004 0.5 10 0.5 0.5 264 5 0.5 0.5 0.5 0.5 7100 59.4 10 1.1 1 0.5 MD-17 7/12/2004 U U U U U U U U U U U U 0.5 10 0.5 0.5 116 5 0.5 0.5 0.5 0.5 2200 42.7 10 0.5 1 0.5 MD-17 1/10/2005 U U U U U U U U U J U U U U 0.5 10 0.5 0.5 405 5 0.5 1.2 0.5 0.5 10900 89.7 10 0.5 1 0.5 MD-18 2/5/2004 U U U U U U U U U U U U 0.5 10 0.5 0.5 5.1 5 0.5 0.5 0.5 0.5 150 7.5 10 0.5 1 0.5 MD-18 7/12/2004 U U U U U U U U U U U U U 0.5 10 0.5 0.5 6.9 5 0.5 0.5 0.5 0.5 339 10.7 10 0.5 1 0.5 MD-18 1/10/2005 U U U U U U U U U J U U U U 0.5 10 0.5 0.5 7.1 5 0.5 0.5 0.5 0.5 141 11.1 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 Page 26 of 42 MD-2 2/4/20 U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 MD-102 MD-23 2/4/2004 0.5 1 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 15.9 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MD-23 7/13/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 5 5 5 NA 5 5 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 500 5 50 5 5 50 5 100 100 5 5 5 5 5 5 10 10 5 5 5 5 5 5 27 5 5 5 5 10 5 5 5 5 10 5 50 5 20 5 5 5 5 5 5 MD-23 1/10/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 27 of 42 0.5 1 0.5 NA 0.5 0.5 1.2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 16.2 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-101 7/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 16.9 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-103 7/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 1.6 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-105 4/27/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U 0.5 0.9 0.5 NA 0.7 0.7 0.6 0.5 0.7 1.3 0.7 0.7 1.6 0.7 0.8 0.9 0.6 1 0.6 0.5 0.8 50 0.9 10 9.6 0.6 9.7 0.6 10 20 0.5 0.6 0.5 0.7 0.4 1.2 1.2 3 0.5 0.6 0.5 0.8 0.8 1.2 0.5 0.5 2.4 1.1 1 2 0.5 0.6 0.8 1.3 0.8 0.4 8.8 0.8 3 1 0.7 0.8 0.7 0.6 0.7 MW-1 7/12/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- MD-102 MD-23 2/4/2004 0.5 10 0.5 0.5 29.2 5 0.5 0.5 0.5 0.5 1640 22 10 0.5 1 0.5 MD-23 7/13/2004 U U U U U U U U U U U U U 5 100 5 5 50.3 50 5 5 5 5 2730 10 100 5 10 5 MD-23 1/10/2005 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 31.3 5 0.5 0.5 0.5 0.5 3700 26.9 10 0.5 1 0.5 MW-101 7/12/2004 U U U U U U U U U U U U U 0.5 10 0.5 0.5 13.5 5 0.5 0.5 0.5 0.5 30.4 1 10 0.5 1 0.5 MW-103 7/12/2004 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 12.3 5 0.5 0.5 0.5 0.5 1340 1 10 0.5 1 0.5 MW-105 4/27/2004 U U U U U U U U U U U U U U 0.5 20 0.8 0.5 1.8 5 0.7 0.8 0.4 2.1 1 0.7 16.4 0.3 1.3 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 Page 28 of 42 MW-1 7/12/20 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 MW-105 MD-102 7/12/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-105 9/29/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 1.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-105 1/10/2005 U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U Page 29 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-105 6/14/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-106 2/4/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-106 4/27/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.9 0.5 NA 0.7 0.7 0.6 0.5 0.7 1.3 0.7 0.7 1.6 0.7 0.8 0.9 0.6 1 0.6 0.5 0.8 50 0.9 10 9.6 0.6 9.7 0.6 10 20 0.5 0.6 0.5 0.7 0.4 1.2 1.2 3 0.5 0.6 0.5 0.8 0.8 1.2 0.5 0.5 2.4 1.1 1 2 0.5 0.6 0.8 1.3 0.8 0.4 8.8 0.8 3 1 0.7 0.8 0.7 0.6 0.7 MW-1 7/12/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter MW-105 MD-102 7/12/2004 MW-105 9/29/2004 MW-105 1/10/2005 MW-105 6/14/2005 MW-106 2/4/2004 MW-106 4/27/2004 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA NA NA NA 5/14/2022 U U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 4.3 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U Page 30 of 42 0.5 10 0.5 0.5 2.8 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 1.2 5 0.5 0.5 0.5 0.5 0.5 1 10 0.5 1 0.5 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 2 1.6 10 0.5 1 0.5 U U U U U U U U U U U U U U 0.5 20 0.8 0.5 0.4 5 0.7 0.8 0.4 2.1 1 0.9 16.4 0.3 1.3 0.5 MW-1 7/12/20 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 MW-106 MD-102 7/12/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-106 9/30/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 1.8 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-106 Dup 9/30/2004 U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U Page 31 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U MW-106 1/10/2005 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-106 5/3/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-106 10/3/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 2 1 1 NA 1 1 1 2 5 2 3 2 5 1 1 1 1 2 1 0.5 1 100 5 20 10 1 10 1 50 20 5 1 1 1 2 2 2 3 2 1 2 2 2 2 1.1 2 5 1 2 2 0.5 2 1 2 2 2 10 1 5 3 2 2 2 2 2 MW-1 5/19/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter MW-106 MD-102 7/12/2004 MW-106 9/30/2004 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 1.2 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2160 6 9.5 24.5 1 0.5 NA 4 10 2100 1.4 NA 409 0.05 3 0.5 2.4 2 9 12 Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4.6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA 5/14/2022 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 1.4 1 10 0.5 1 0.5 MW-106 Dup 9/30/2004 U U U U U U U U U U U U U U U U U U U U Page 32 of 42 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 1.1 1 10 0.5 1 0.5 2480 6 10.3 26.5 1 0.5 NA 4 10.6 2390 1.5 NA 417 0.05 4 0.5 2.6 2 10 10 U U U U U U U U U U U U U U U MW-106 1/10/2005 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.7 1 10 0.5 1 0.5 MW-106 5/3/2005 U U U U U U U U U U U U U U U 0.5 10 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.6 1 10 0.5 1 0.5 MW-106 10/3/2005 U U U U U U U U U U U U U U U 1 20 2 1 2 10 1 1 2 2 1.4 2 20 2 4 2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4.5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA U U U U U U U MW-1 5/19/20 U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 MW-106 MD-102 5/19/2006 1 1 0.5 5 1 1 1 2 5 2 5 1 5 0.5 1 1 1 1 1 0.5 1 50 1 20 NA 1 10 1 50 NA 5 1 1 1 1 1 2 3 1 1 0.5 2 2 2 1 0.5 NA 1 2 2 0.5 1 NA 1 NA 1 10 1 5 5 1 1 1 1 1 MW-106 10/24/2006 U U U UJ U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U Page 33 of 42 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 2 1 5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 50 0.5 2 NA 0.5 5 0.5 5 NA 2 0.5 0.5 0.5 0.5 2 1 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 2 NA 0.5 0.5 0.5 0.5 0.5 NA 2 NA 1 5 0.5 0.5 6 1 1 0.5 1 1 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U MW-107 2/5/2004 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 64.9 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter 5/14/2022 MW-106 MD-102 5/19/2006 MW-106 10/24/2006 MW-107 2/5/2004 VOCs (ug/L) tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- 0.5 20 1 0.5 1 10 1 1 0.5 2 1 2 NA 2 2 1 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA NA U U U U U U U U U U U U U U U Page 34 of 42 0.5 5 1 0.5 0.5 5 0.5 0.5 2 0.5 0.8 0.5 NA 0.5 1 1 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 18.3 5 0.5 0.5 0.5 0.5 340 1 10 0.5 1 0.5 U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 3] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter VOCs (ug/L) 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethylbenzene 1,2-Dibromo-3-Chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 1,4-Dioxane 2,2-Dichloropropane 2-Butanone 2-Chloroethylvinylether 2-Chlorotoluene 2-Hexanone 4-Chlorotoluene Acetone Acrolein Acrylonitrile Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene cis-1,4-Dichloro-2-Butene Dibromomethane Dichlorodifluoromethane Diethyl Ether Diisopropyl Ether Ethyl Benzene Ethyl Methacrylate Hexachlorobutadiene Iodomethane Isopropylbenzene Methyl isobutyl ketone Methyl tert-butyl ether Methylene Chloride Naphthalene n-Butylbenzene n-Propylbenzene p-Isopropyltoluene sec-Butylbenzene Styrene 5/14/2022 MW-107 4/27/2004 0.5 0.9 0.5 NA 0.7 0.7 0.6 0.5 0.7 1.3 0.7 0.7 1.6 0.7 0.8 0.9 0.6 1 0.6 0.5 0.8 50 0.9 10 9.6 0.6 9.7 0.6 10 20 0.5 0.6 0.5 0.7 0.4 1.2 1.2 3 0.5 0.6 0.5 0.8 0.8 1.2 123 0.5 2.4 1.1 1 2 0.5 0.6 0.8 1.3 0.8 0.4 8.8 0.8 3 1 0.7 0.8 0.7 0.6 0.7 MW-107 7/12/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 80.9 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-107 9/30/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U Page 35 of 42 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.6 0.5 35 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-107 1/10/2005 U U U U U U U U U U U U U U U U U U U U UJ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U UJ U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 63.8 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-107 6/15/2005 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 85.7 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-12 2/5/2004 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 0.5 0.5 0.5 NA 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 50 0.5 5 0.5 0.5 5 0.5 10 10 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 MW-1 4/27/20 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U 6497d1d24307912fc2810bd9b39cc06d [P 4] TABLE 5 GROUNDWATER ANALYTICAL RESULTS - MONITORING WELLS NORANDA FORGE FIN SITE Parameter tert-Amylmethyl Ether tert-Butyl Alcohol tert-Butylbenzene tert-Butylethyl Ether Tetrachloroethene Tetrahydrofuran Toluene trans-1,2-Dichloroethene trans-1,3-Dichloropropene trans-1,4-Dichloro-2-Butene Trichloroethene Trichlorofluoromethane Vinyl Acetate Vinyl Chloride Xylene, m/pXylene, o- MW-107 4/27/2004 0.5 20 0.8 0.5 11.1 5 0.7 0.8 0.4 2.1 102 0.7 16.4 0.3 1.3 0.5 MW-107 7/12/2004 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 15.1 5 0.5 0.5 0.5 0.5 315 1 10 0.5 1 0.5 MW-107 9/30/2004 U U U U U U U U U U U U U U 0.5 10 0.5 0.5 4.8 5 0.5 0.5 0.5 0.5 68.9 1 10 0.5 1 0.5 Metals - Total (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 70 6 2.5 15.8 1 0.5 NA 4 0.5 120 0.5 NA 1.6 0.07 3 0.5 0.5 2 5 7 Metals - Dissolved (ug/L) Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Copper Iron Lead Magnesium Manganese Mercury Nickel Selenium Silver Thallium Vanadium Zinc NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Miscellaneous (ug/l) Hardness, Total (as CaCO3) NA NA 5/14/2022 Page 36 of 42 MW-107 1/10/2005 U U U U U U U U U U U U U U 0.5 10 0.5 0...
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Explanation & Answer

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Unconfined aquifer thickness is 21 feet- we use the data from the previous acquifer which has
been confirmed.
Hydraulic conductivity of 2.4x10-4 cm/s
Hydraulic gradient of 0.05 m/m (ft/ft).
• TCE = 200,00 ug/L


Treatment volume
Pore volume of the source area

Area of Slab = Area of Triangle
= (½) x 170 ft x 200 ft = 17000 sft
Pore volume = Plume Thickness x Porosity x Source Area
= 21 ft x 0.4 x 17000 sft = 142800 cft = 1068144 gallons


Transmissivity of the aquifer

Transmissivity = Horizontal Conductivity x Aquifer thickness
= (2.4 x 10-4 cm/s) x (21 x 100 /3.28) cm
= 0.154 cm2/s = 1.54 x 10-5 m2/s = 1.33 m2/d


Extraction f...


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