COMPLIANCE INFO_2024 Q1 WATER QUALITY RPT

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Appendix D. Cumulative Historical Data for the Past Year Sample ID Sample Date Parameter Result Lab Result (numeric)Lab Limit Lab Unit Detect Method 7898 AUSTIN RD 8/1/2023 Xylenes, Total ND(1)ND 1 ug/L No 8260B 7898 AUSTIN RD 9/13/2023 Xylenes, Total ND(1)ND 1 ug/L No 8260B 7898 AUSTIN RD 9/13/2023 MTBE ND(0.5)ND 0.5 ug/L No 8260B 7898 AUSTIN RD 8/1/2023 MTBE ND(0.5)ND 0.5 ug/L No 8260B 7898 AUSTIN RD 9/13/2023 cis-1,3-Dichloropropene ND(0.5)ND 0.5 ug/L No 8260B 7898 AUSTIN RD 8/1/2023 cis-1,3-Dichloropropene ND(0.5)ND 0.5 ug/L No 8260B 7898 AUSTIN RD 8/1/2023 trans-1,3-Dichloropropene ND(0.5)ND 0.5 ug/L No 8260B 7898 AUSTIN RD 8/1/2023 Chloride 85 85 0.5 mg/L Yes 300 7898 AUSTIN RD 8/1/2023 Potassium, Dissolved 7.4 7.4 1 mg/L Yes 6010B 7898 AUSTIN RD 9/13/2023 trans-1,3-Dichloropropene ND(0.5)ND 0.5 ug/L No 8260B 7898 AUSTIN RD 8/1/2023 Carbonate ND(5)ND 5 mg/L No 310.1 7898 AUSTIN RD 8/1/2023 Calcium, Dissolved 97 97 0.1 mg/L Yes 6010B 7898 AUSTIN RD 8/1/2023 Magnesium, Dissolved 51 51 0.05 mg/L Yes 6010B 7898 AUSTIN RD 8/1/2023 Bicarbonate 340 340 10 mg/L Yes 310.1 7898 AUSTIN RD 8/1/2023 Sulfate 77 77 1 mg/L Yes 300 7898 AUSTIN RD 8/1/2023 Sodium, Dissolved 48 48 1 mg/L Yes 6010B 7898 AUSTIN RD 8/1/2023 Nitrogen, Nitrate 21 21 0.2 mg/L Yes 300 7898 AUSTIN RD 8/1/2023 Strontium 1100 1100 10 ug/L Yes 6010B 7898 AUSTIN RD 8/1/2023 Solids, Total Dissolved 690 690 33 mg/L Yes 160.1 7898 AUSTIN RD 1/31/2024 Benzene <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Bromochloromethane <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Bromodichloromethane <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Bromoform <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Bromomethane <1 ug/L 1 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Carbon tetrachloride <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Ethylbenzene <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Hexachlorobutadiene <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Methylene Chloride <1.0 ug/L 1 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 MTBE <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Naphthalene <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Styrene <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 1,1,1,2-Tetrachloroethane <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 1,1,2,2-Tetrachloroethane <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Toluene <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 1,2,4-Trichlorobenzene <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 1,1,1-Trichloroethane <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 1,1,2-Trichloroethane <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Trichlorofluoromethane <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 1,2,3-Trichloropropane <1.0 ug/L 1 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Vinyl Chloride <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Xylenes, Total <1.0 ug/L 1 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Acetone <10 ug/L 10 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Acrylonitrile <5.0 ug/L 5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Tert-Amyl-Methyl Ether <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 tert-Butyl Alcohol <10 ug/L 10 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Carbon Disulfide <1.0 ug/L 1 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Trans-1,4-Dichloro-2-Butene <5.0 ug/L 5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Diisopropyl Ether <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Ethanol <250 ug/L 250 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Ethyl-t-Butyl Ether <0.50 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 2-Hexanone <10 ug/L 10 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 2-Butanone <10 ug/L 10 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Methyl Iodide <2.0 ug/L 2 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 4-Methyl-2-Pentanone <10 ug/L 10 ug/L No 8260B 7898 AUSTIN RD 3/15/2024 Vinyl acetate <10 ug/L 10 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Dichlorodifluoromethane 0.18 J ug/L 0.5 ug/L Yes 8260B 7898 AUSTIN RD 1/31/2024 Tetrachloroethene 3.1 ug/L 0.5 ug/L Yes 8260B 7898 AUSTIN RD 1/31/2024 Trichloroethene 0.49 J ug/L 0.5 ug/L Yes 8260B 7898 AUSTIN RD 1/31/2024 Calcium, Dissolved 85 mg/L 0.1 mg/L Yes 6010B 7898 AUSTIN RD 1/31/2024 Magnesium, Dissolved 43 mg/L 0.05 mg/L Yes 6010B 7898 AUSTIN RD 1/31/2024 Sodium, Dissolved 40 mg/L 1 mg/L Yes 6010B 7898 AUSTIN RD 1/31/2024 Potassium, Dissolved 7.7 mg/L 1 mg/L Yes 6010B 7898 AUSTIN RD 1/31/2024 Bicarbonate 310 mg/L 5 mg/L Yes 310.1 7898 AUSTIN RD 1/31/2024 Chloride 72 mg/L 0.5 mg/L Yes 300 7898 AUSTIN RD 1/31/2024 Nitrogen, Nitrate 11 mg/L 0.1 mg/L Yes 300 7898 AUSTIN RD 1/31/2024 Sulfate 58 mg/L 1 mg/L Yes 300 7898 AUSTIN RD 1/31/2024 Solids, Total Dissolved 580 A10 mg/L 33 mg/L Yes 160.1 7898 AUSTIN RD 1/31/2024 Strontium 870 ug/L 10 ug/L Yes 6010B 7898 AUSTIN RD 3/15/2024 Tetrachloroethene 3.5 ug/L 0.5 ug/L Yes 8260B 7898 AUSTIN RD 3/15/2024 Trichloroethene 0.62 ug/L 0.5 ug/L Yes 8260B 7898 AUSTIN RD 1/31/2024 Chlorobenzene <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Chloroethane <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Chloroform <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Chloromethane <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Dibromochloromethane <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 1,2-Dibromo-3-Chloropropane <1 ug/L 1 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 1,2-Dibromoethane <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 Dibromomethane <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 1,2-Dichlorobenzene <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 1,3-Dichlorobenzene <0.5 ug/L 0.5 ug/L No 8260B 7898 AUSTIN RD 1/31/2024 1,4-Dichlorobenzene <0.5 ug/L 0.5 ug/L No 8260B Page 40 of 971