COMPLIANCE INFO_Q3 2025 MONITORING REPORT 10-30-25

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Appendix D - Cumulative Historical Data for the Past Year AFU-05 SUMP 8/15/2025 Ethanol <250 ND 250 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Ethyl-t-Butyl Ether <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 2-Hexanone <10 ND 10 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 2-Butanone <10 ND 10 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Methyl Iodide <2 ND 2 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 4-Methyl-2-Pentanone <10 ND 10 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Vinyl acetate <10 ND 10 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Benzene 6.2 6.2 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 Bromochloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Bromodichloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Bromoform <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Bromomethane <1 ND 1 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Carbon tetrachloride <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Chlorobenzene 0.91 0.91 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 Chloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Chloroform <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Chloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Dibromochloromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,2-Dibromo-3-Chloropropane <1 ND 1 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,2-Dibromoethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Dibromomethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,2-Dichlorobenzene 0.16 J 0.16 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 1,3-Dichlorobenzene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,4-Dichlorobenzene 4.8 4.8 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 Dichlorodifluoromethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,1-Dichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,2-Dichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,1-Dichloroethene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 cis-1,2-Dichloroethene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 trans-1,2-Dichloroethene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,2-Dichloropropane 0.37 J 0.37 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 cis-1,3-Dichloropropene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 trans-1,3-Dichloropropene <0.5 ND 0.5 μg/L ug/L No8260B AFU-05 SUMP 8/15/2025 Ethylbenzene 5 5 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 Hexachlorobutadiene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Methylene Chloride <1 ND 1 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 MTBE 0.68 0.68 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 Naphthalene 7.3 7.3 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 Styrene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 μg/L ug/L No8260B AFU-05 SUMP 8/15/2025 1,1,2,2-Tetrachloroethane <0.5 ND 0.5 μg/L ug/L No8260B AFU-05 SUMP 8/15/2025 Tetrachloroethene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Toluene 0.84 0.84 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/15/2025 1,2,4-Trichlorobenzene <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,1,1-Trichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 1,1,2-Trichloroethane <0.5 ND 0.5 μg/L ug/L No 8260B AFU-05 SUMP 8/15/2025 Trichloroethene 0.12 J 0.12 0.5 μg/L ug/L Yes 8260B AFU-05 SUMP 8/14/2024 Chloride 1700 A10 1700 5 mg/L mg/L Yes 300 AFU-05 SUMP 8/14/2024 Nitrogen, Nitrate <1 A10 ND 1 mg/L mg/L No 300 AFU-05 SUMP 8/14/2024 Sulfate <10 A10 ND 10 mg/L mg/L No 300 AFU-05 SUMP 12/6/2024 Chloride 1900 A10 1900 5 mg/L mg/L Yes 300 AFU-05 SUMP 12/6/2024 Nitrogen, Nitrate <1.0 A10 ND 1 mg/L mg/L No 300 AFU-05 SUMP 12/6/2024 Sulfate <10 A10 ND 10 mg/L mg/L No 300 AFU-05 SUMP 2/21/2025 Chloride 1400 A10 1400 5 mg/L mg/L Yes 300 AFU-05 SUMP 2/21/2025 Nitrogen, Nitrate <1.0 A10 ND 1 mg/L mg/L No 300 AFU-05 SUMP 2/21/2025 Sulfate 9.6 J,A10 9.6 10 mg/L mg/L Yes 300 AFU-05 SUMP 3/28/2025 Chloride 1600 A10 1600 5 mg/L mg/L Yes 300 AFU-05 SUMP 3/28/2025 Nitrogen, Nitrate <1.0 A10 ND 1 mg/L mg/L No 300 AFU-05 SUMP 3/28/2025 Sulfate 3.0 J,A10 3 10 mg/L mg/L Yes 300 AFU-05 SUMP 5/30/2025 Chloride 1800 A10 1800 5 mg/L mg/L Yes 300 AFU-05 SUMP 5/30/2025 Nitrogen, Nitrate <1 A10 ND 1 mg/L mg/L No 300 AFU-05 SUMP 5/30/2025 Sulfate <10 A10 ND 10 mg/L mg/L No 300 AFU-05 SUMP 8/15/2025 Chloride 1800 A10 1800 5 mg/L mg/L Yes 300 AFU-05 SUMP 8/15/2025 Nitrogen, Nitrate <1 A10 ND 1 mg/L mg/L No 300 AFU-05 SUMP 8/15/2025 Sulfate 3.2 J,A10 3.2 10 mg/L mg/L Yes 300 AFU-05 SUMP 12/6/2024 1,2,3-Trichloropropane <0.0050 ND 0.005 μg/L ug/LNo524.2 AFU-05 SUMP 5/30/2025 1,2,3-Trichloropropane <0.005 ND 0.005 μg/L ug/L No 524.2 AFU-05 SUMP 3/28/2025 1,2,3-Trichloropropane <0.25 A10 ND 0.25 μg/L ug/L No 524.2 AFU-05 SUMP 8/15/2025 1,2,3-Trichloropropane <0.005 ND 0.005 μg/L ug/L No 524.2 AFU-05 SUMP 8/15/2025 Acetone 3.1 3100 24 μg/L ug/m3 Air Yes TO-15 AFU-05 SUMP 8/15/2025 Acrylonitrile <0.00087 A01 ND 0.87 μg/L ug/m3 AirNo TO-15 AFU-05 SUMP 8/15/2025 Allyl Chloride <0.0013 A01 ND 1.3 μg/L ug/m3 Air No TO-15 AFU-05 SUMP 8/15/2025 Benzene 0.67 670 13 μg/L ug/m3 Air Yes TO-15 AFU-05 SUMP 8/15/2025 Benzylchloride <5.2 A01 ND 5.2 μg/m³ ug/m3 Air No TO-15 AFU-05 SUMP 8/15/2025 Bromodichloromethane <0.0027 A01 ND 2.7 μg/L ug/m3 Air No TO-15 AFU-05 SUMP 8/15/2025 Bromoform <0.0041 A01 ND 4.1 μg/L ug/m3 Air No TO-15 AFU-05 SUMP 8/15/2025 Bromomethane <0.0016 A01 ND 1.6 μg/L ug/m3 Air No TO-15 AFU-05 SUMP 8/15/2025 1,3-Butadiene <0.88 A01 ND 0.88 μg/m³ ug/m3 Air NoTO-15 AFU-05 SUMP 8/15/2025 Carbon Disulfide 0.015 A01 15 1.2 μg/L ug/m3 Air Yes TO-15 AFU-05 SUMP 8/15/2025 Carbon tetrachloride <0.0025 A01 ND 2.5 μg/L ug/m3 Air No TO-15 AFU-05 SUMP 8/15/2025 Chlorobenzene <0.0018 A01 ND 1.8 μg/L ug/m3 Air NoTO-15 AFU-05 SUMP 8/15/2025 Chlorodifluoromethane 2000 2000 14 μg/m³ ug/m3 Air Yes TO-15 AFU-05 SUMP 8/15/2025 Chloroethane 0.110 A01 110 1.1 μg/L ug/m3 Air Yes TO-15