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Analysis of Enterococcus from 2019-2023 showed a downward trend in both Enterococcus Geomean and single sample maximum, ending up around 20,000,000 CFU/gallon for the Single sample maximum and 10,000,000 CFU/ Gallon for the Geomean.
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Discharged concentration of Nitrogen from 2019-2020 showed a slight downward trend with concentration ending at about 33 mg/L in 2020.
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Discharged concentrations of Phosphorus from Honouliuli Wastewater Treatment Plant in 2019-2020 showed a rather stable trend of ~4.25 mg/L.
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Turbidity of the effluent at Honouliuli Wastewater Treatment plant from 2019-2023 showed a downward trend ending in about 42 NTU.
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Honouliuli Wastewater Treatment Plant Water Quality History
Date Enterococcus Fecal Indicator Bacteria Geomean (MPN/gal) Enterococcus Fecal Indicator Bacteria Single Sample Max (MPN/gal) Total Nitrogen (mg/L) Total Phosphorus (mg/L) Turbidity (NTU) 1/1/19 19659148 102206070 37.0 4.3 57.8 2/1/19 13336870 37854100 36.0 4.4 51.0 3/1/19 12208060 25740788 37.0 4.4 45.4 4/1/19 17715870 24226624 37.8 4.6 50.0 5/1/19 16287256 26497870 36.8 4.7 60.9 6/1/19 18152706 52995740 39.4 5.4 58.2 7/1/19 11151742 18927050 33.7 4.1 42.9 8/1/19 14617398 35204313 35.1 4.5 67.4 9/1/19 12081779 18169968 33.8 4.2 78.8 10/1/19 12248034 21576837 31.7 4.3 45.3 11/1/19 11089055 19305591 31.8 3.8 44.9 12/1/19 13483857 21198296 29.7 3.6 39.8 1/31/2020 14475256 22333919 31.6 3.7 41.4 2/29/2020 15662058 23848083 32.8 3.7 40.4 3/31/2020 13008220 19684132 30.2 3.4 35.8 4/30/2020 13721770 26119329 35.2 4.3 25.6 5/31/2020 13506456 21955378 40.0 4.7 47.5 6/30/2020 11749609 22333919 36.5 4.2 40.4 7/31/2020 8564944 19684132 32.0 4.2 41.5 8/31/2020 7369625 14006017 35.3 6.1 47.8 9/30/2020 8072311 15141640 36.1 4.5 45.7 10/31/2020 9167278 15141640 43.1 11/30/2020 6798369 12870394 36.8 12/31/2020 7936831 14763099 31.2 1/31/2021 10863975 21955378 48.2 2/28/2021 9952107 17034345 41.7 3/31/2021 9872992 18927050 35.6 4/30/2021 13446457 20441214 42.0 5/31/2021 12120844 20062673 37.0 6/30/2021 13073443 22333919 32.9 7/31/2021 12279226 18548509 43.2 8/31/2021 11846629 37097018 39.0 9/30/2021 12069552 18548509 44.9 10/31/2021 14345757 20062673 48.6 11/30/2021 10770059 18548509 44.8 12/31/2021 11837923 20819755 35.5 1/31/2022 11574383 18548509 30.9 2/28/2022 13361550 24226624 56.0 3/31/2022 18926898 31040362 66.4 4/30/2022 16346876 30661821 52.4 5/31/2022 13960062 22333919 43.3 6/30/2022 11847235 113562300 35.2 7/31/2022 11820964 18927050 52.9 8/31/2022 12460585 21955378 51.3 9/30/2022 10295974 19305591 64.0 10/31/2022 11737837 17412886 57.8 11/30/2022 12636493 22712460 45.0 12/31/2022 11257317 16466533 41.2 1/31/2023 13368856 22333919 35.6 2/28/2023 12451121 19684132 27.1