COMPLIANCE INFO_Q3 2025 MONITORING REPORT 10-30-25

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Appendix D - Cumulative Historical Data for the Past Year EW-5 3/20/2025 Phenanthrene <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 Pyrene <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 4-Chloro-3-Methylphenol <5.0 ND 5 μg/L ug/L No 8270C EW-5 3/20/2025 2-Chlorophenol <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 2,4-Dichlorophenol <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 2,4-Dimethylphenol <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 4,6-Dinitro-2-methylphenol <10 ND 10 μg/L ug/L No 8270C EW-5 3/20/2025 2,4-Dinitrophenol <10 ND 10 μg/L ug/L No 8270C EW-5 3/20/2025 2-Methylphenol <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 3,4-Methylphenol <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 2-Nitrophenol <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 4-Nitrophenol <2.0 ND 2 μg/L ug/L No 8270C EW-5 3/20/2025 Pentachlorophenol <10 ND 10 μg/L ug/L No 8270C EW-5 5/23/2025 Chloride 90 90 0.5 mg/L mg/L Yes 300 EW-5 5/23/2025 Nitrogen, Nitrate 6.6 6.6 0.1 mg/L mg/L Yes 300 EW-5 5/23/2025 Sulfate 52 52 1 mg/L mg/L Yes 300 EW-5 5/23/2025 Solids, Total Dissolved 562 562 10 mg/L mg/l Yes 2540C EW-5 5/23/2025 1,2,3-Trichloropropane 0.0096 0.0096 0.005 μg/L ug/L Yes 524.2 EW-5 3/20/2025 2,4-D <0.40 ND 0.4 μg/L ug/L No 8151A EW-5 3/20/2025 2,4-DB <3.0 ND 3 μg/L ug/L No 8151A EW-5 3/20/2025 Dalapon <10 ND 10 μg/L ug/L No 8151A EW-5 3/20/2025 Dicamba <0.080 ND 0.08 μg/L ug/L No 8151A EW-5 3/20/2025 Dichlorprop <0.50 ND 0.5 μg/L ug/L No 8151A EW-5 3/20/2025 2-Sec-butyl-4,6-dinitrophenol <0.20 ND 0.2 μg/L ug/L No 8151A EW-5 3/20/2025 2,4,5-T <0.090 ND 0.09 μg/L ug/L No 8151A EW-5 3/20/2025 2,4,5-TP (Silvex) <0.070 ND 0.07 μg/L ug/L No 8151A EW-5 8/8/2025 Chloride 130 130 0.5 mg/L mg/L Yes 300 EW-5 8/8/2025 Nitrogen, Nitrate 7.6 7.6 0.1 mg/L mg/L Yes 300 EW-5 8/8/2025 Sulfate 57 57 1 mg/L mg/L Yes 300 EW-5 3/20/2025 Chemical Oxygen Demand 6.8 J 6.8 25 mg/L mg O2/L Yes 410.4 EW-5 8/8/2025 Solids, Total Dissolved 613 613 13.3 mg/L mg/l Yes 2540C EW-5 8/8/2025 1,2,3-Trichloropropane 0.016 0.016 0.005 μg/L ug/L Yes 524.2 EW-5 3/20/2025 Sulfide, Dissolved <0.10 ND 0.1 mg/L mg/L No 4500-S D EW-5 3/20/2025 Total Organic Carbon 0.63 J 0.63 1 mg/L mg/L Yes 5310C EW-5 3/20/2025 Atrazine <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Azinphos Methyl <0.50 ND 0.5 μg/L ug/L No 8141A EW-5 3/20/2025 Sulprofos <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Chlorpyrifos <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Coumaphos <0.50 ND 0.5 μg/L ug/L No 8141A EW-5 3/20/2025 Demeton <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Diazinon <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Dichlorvos <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Dimethoate <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Disulfoton <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Ethoprophos <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Parathion <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Dasanit <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Fenthion <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Folex <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Methyl Parathion <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Mevinphos <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Dibrom <0.50 ND 0.5 μg/L ug/L No 8141A EW-5 3/20/2025 Phorate <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Ronnel <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Simazine <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Stirophos <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Thionazin <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Tokuthion <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 3/20/2025 Trichloronate <0.20 ND 0.2 μg/L ug/L No 8141A EW-5 Dup 3/20/2025 Mercury, Dissolved <0.20 ND 0.2 μg/L ug/L No 7470A EW-5 Dup 3/20/2025 Cyanide, Dissolved <0.0050 ND 0.005 mg/L mg/L No 9010 EW-5 Dup 3/20/2025 Aluminum, Dissolved <50 ND 50 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Antimony, Dissolved <100 ND 100 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Arsenic, Dissolved <50 ND 50 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Barium, Dissolved 230 230 10 μg/L ug/L Yes 6010B EW-5 Dup 3/20/2025 Beryllium, Dissolved <10 ND 10 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Cadmium, Dissolved <10 ND 10 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Chromium, Dissolved 3.1 J 3.1 10 μg/L ug/L Yes 6010B EW-5 Dup 3/20/2025 Cobalt, Dissolved <50 ND 50 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Copper, Dissolved 13 13 10 μg/L ug/L Yes 6010B EW-5 Dup 3/20/2025 Iron, Dissolved <50 ND 50 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Lead, Dissolved <50 ND 50 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Manganese, Dissolved 57 57 10 μg/L ug/L Yes 6010B EW-5 Dup 3/20/2025 Molybdenum, Dissolved <50 ND 50 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Nickel, Dissolved <10 ND 10 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Selenium, Dissolved <100 ND 100 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Silver, Dissolved <10 ND 10 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Tin, Dissolved <50 ND 50 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Thallium, Dissolved <100 ND 100 μg/L ug/L No 6010B EW-5 Dup 3/20/2025 Vanadium, Dissolved 18 18 10 μg/L ug/L Yes 6010B EW-5 Dup 3/20/2025 Zinc, Dissolved 130 130 10 μg/L ug/L Yes 6010B EW-5 Dup 3/20/2025 Tert-Amyl-Methyl Ether <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 tert-Butyl Alcohol <10 ND 10 μg/L ug/L No 8260B