COMPLIANCE INFO_Q3 2025 MONITORING REPORT 10-30-25

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Appendix D - Cumulative Historical Data for the Past Year AFU-04E SUMP 3/28/2025 1,3-Dichlorobenzene <1.0 A01 ND 1 μg/L ug/L No 8260B AFU-04E SUMP 3/28/2025 1,4-Dichlorobenzene 6.6 A01 6.6 1 μg/L ug/L Yes 8260B AFU-04E SUMP 3/28/2025 Dichlorodifluoromethane <1.0 A01 ND 1 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Benzene 7.2 7.2 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Bromochloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Bromodichloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Bromoform <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Bromomethane <1 ND 1 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Carbon tetrachloride <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Chlorobenzene 1.2 1.2 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Chloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Chloroform <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Chloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Dibromochloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,2-Dibromo-3-Chloropropane <1 ND 1 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,2-Dibromoethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Dibromomethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,2-Dichlorobenzene 0.85 0.85 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 1,3-Dichlorobenzene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,4-Dichlorobenzene 8.7 8.7 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Dichlorodifluoromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,1-Dichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,2-Dichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,1-Dichloroethene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 cis-1,2-Dichloroethene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 trans-1,2-Dichloroethene <0.5 ND 0.5 μg/L ug/L No8260B AFU-04E SUMP 8/15/2025 1,2-Dichloropropane 0.27 J 0.27 0.5 μg/L ug/L Yes8260B AFU-04E SUMP 8/15/2025 cis-1,3-Dichloropropene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 trans-1,3-Dichloropropene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Ethylbenzene 16 16 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Hexachlorobutadiene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Methylene Chloride <1 ND 1 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 MTBE 1 1 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Naphthalene 20 20 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Styrene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,1,2,2-Tetrachloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Tetrachloroethene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Toluene 1.5 1.5 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 1,2,4-Trichlorobenzene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,1,1-Trichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,1,2-Trichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Trichloroethene 0.15 J 0.15 0.5 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Trichlorofluoromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 1,2,3-Trichloropropane <1 ND 1 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Vinyl Chloride <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Xylenes, Total 11 11 1 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Acetone <10 ND 10 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Acrylonitrile <5 ND 5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Tert-Amyl-Methyl Ether <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 tert-Butyl Alcohol 4700 A01 4700 100 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Carbon Disulfide 0.48 J 0.48 1 μg/L ug/L Yes 8260B AFU-04E SUMP 8/15/2025 Trans-1,4-Dichloro-2-Butene <5 ND 5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Diisopropyl Ether <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Ethanol <250 ND 250 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Ethyl-t-Butyl Ether <0.5 ND 0.5 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 2-Hexanone <10 ND 10 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 2-Butanone <10 ND 10 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Methyl Iodide <2 ND 2 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 4-Methyl-2-Pentanone <10 ND 10 μg/L ug/L No 8260B AFU-04E SUMP 8/15/2025 Vinyl acetate <10 ND 10 μg/L ug/L No 8260B AFU-04E SUMP 8/14/2024 Chloride 1400 A10 1400 5 mg/L mg/L Yes 300 AFU-04E SUMP 8/14/2024 Nitrogen, Nitrate <1 A10 ND 1 mg/L mg/L No 300 AFU-04E SUMP 8/14/2024 Sulfate <10 A10 ND 10 mg/L mg/L No 300 AFU-04E SUMP 12/6/2024 Chloride 1700 A10 1700 5 mg/L mg/L Yes 300 AFU-04E SUMP 12/6/2024 Nitrogen, Nitrate <1.0 A10 ND 1 mg/L mg/L No 300 AFU-04E SUMP 12/6/2024 Sulfate <10 A10 ND 10 mg/L mg/L No 300 AFU-04E SUMP 2/21/2025 Chloride 1600 A10 1600 5 mg/L mg/L Yes 300 AFU-04E SUMP 2/21/2025 Nitrogen, Nitrate <1.0 A10 ND 1 mg/L mg/L No 300 AFU-04E SUMP 2/21/2025 Sulfate <10 A10 ND 10 mg/L mg/L No 300 AFU-04E SUMP 3/28/2025 Chloride 1300 A10 1300 5 mg/L mg/L Yes 300 AFU-04E SUMP 3/28/2025 Nitrogen, Nitrate <1.0 A10 ND 1 mg/L mg/L No 300 AFU-04E SUMP 3/28/2025 Sulfate 2.5 J,A10 2.5 10 mg/L mg/L Yes 300 AFU-04E SUMP 5/30/2025 Chloride 1600 A10 1600 5 mg/L mg/L Yes 300 AFU-04E SUMP 5/30/2025 Nitrogen, Nitrate <1 A10 ND 1 mg/L mg/L No 300 AFU-04E SUMP 5/30/2025 Sulfate <10 A10 ND 10 mg/L mg/L No 300 AFU-04E SUMP 8/15/2025 Chloride 1700 A10 1700 5 mg/L mg/L Yes 300 AFU-04E SUMP 8/15/2025 Nitrogen, Nitrate <1 A10 ND 1 mg/L mg/L No 300 AFU-04E SUMP 8/15/2025 Sulfate 3 J,A10 3 10 mg/L mg/L Yes 300 AFU-04E SUMP 5/30/2025 Solids, Total Dissolved 5210 5210 125 mg/L mg/L Yes 2540C AFU-04E SUMP 12/6/2024 1,2,3-Trichloropropane <0.0050 ND 0.005 μg/L ug/L No 524.2 AFU-04E SUMP 5/30/2025 1,2,3-Trichloropropane <0.005 ND 0.005 μg/L ug/LNo524.2 AFU-04E SUMP 3/28/2025 1,2,3-Trichloropropane <0.25 A10 ND 0.25 μg/L ug/L No 524.2