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Turbidity measured in effluent from the East Honolulu wastewater treatment plant typically ranges between 1 and 5 NTU, with an increasing trend since 2021.
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Fecal indicator bacteria measured in effluent from the East Honolulu wastewater treatment plant has a geomean typically below 500 most probable number of colony forming units of Enterococcus per gallon of effluent, with spikes up to greater than 5,000 MPN CFU/gallon effluent.
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East Honolulu Wastewater Treatment Plant Water Quality History
Date Enterococcus Daily Max (CFU/100mL) Enterococcus Daily Max (CFU/gallon) Enterococcus Monthly Geomean (CFU/100mL) Enterococcus Monthly Geomean (CFU/gallon) Turbidity (NTU) 5/21/2021 5.5 208 1.1 41.64 0.97 6/28/2021 3.6 136 1.3 49.21 1.2 7/27/2021 4.4 166 1.1 41.64 0.62 8/25/2021 1.3 49 1 37.85 0.82 9/28/2021 1.3 49 1 37.85 0.79 10/26/2021 2.6 98 1.1 41.64 0.64 11/23/2021 2.6 98 1.1 41.64 0.98 12/27/2021 6.6 249 1.2 45.42 0.85 1/27/2022 30.4 1150 1.9 71.92 1.65 2/23/2022 4.3 162 1.4 53.00 1.22 3/22/2022 5.2 196 1.4 53.00 0.83 4/21/2022 4.3 162 1.2 45.42 0.71 5/27/2022 2 75 1.1 41.64 0.6 6/24/2022 8 302 1.2 45.42 1.11 7/27/2022 1.2 45 1 37.85 0.82 8/27/2022 1.2 45 1 37.85 5.08 9/22/2022 10.2 386 1.8 68.14 3.73 10/21/2022 28.4 1075 7.3 276.33 2.13 11/21/2022 30.7 1162 1.3 49.21 1.52 12/19/2022 3.8 143 1.1 41.64 1.08 1/23/2023 6.2 234 1.6 60.57 1.98 2/27/2023 4.8 181 1.2 45.42 1.91 3/23/2023 12.8 484 2 75.71 1.5 4/25/2023 17.4 658 3 113.56 1.64 5/25/2023 12.1 458 2.7 102.21 1.6 6/27/2023 29.7 1124 13.3 503.46 1.64 7/28/2023 56.5 2138 12.4 469.39 1.53 8/25/2023 24.2 916 4.7 177.91 1.57 9/27/2023 5.8 219 1.2 45.42 2.27 10/26/2023 6.8 257 1.4 53.00 1.69 11/27/2023 1.5 56 1 37.85 2.22 12/22/2023 7.1 268 1.4 53.00 1.98 1/25/2024 5.7 215 2 75.71 4.22 2/27/2024 20.2 764 2.8 105.99 3.94 3/25/2024 5.5 208 1.2 45.42 4.16 4/26/2024 19.9 753 2 75.71 1.53 5/29/2024 19.7 745 4 151.42 4.65 6/27/2024 144.4 5466 4.1 155.20 4 7/25/2024 44 1665 2.5 94.64 2.17