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Concentrations of Enterococcus (CFU/gallon) at Hilo Wastewater Treatment Plant from 2018-2025.
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Concentrations of Enterococcus (CFU/100 mL) at Hilo Wastewater Treatment Plant from 2018-2025.
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Concentrations of Total Nitrogen (mg/L) at Hilo Wastewater Treatment Plant from 2018-2020.
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Concentrations of Total Phosphorus (mg/L) at Hilo Wastewater Treatment Plant from 2018-2020.
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Turbidity (NTU) measurements at Hilo Wastewater Treatment Plant from 2018-2020.
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Hilo Wastewater Treatment Plant Water Quality History
Date Enterococcus Geomean (CFU/100 mL) Enterococcus Daily Max (CFU/100 mL) Enterococcus Geomean (CFU/gallon) Enterococcus Daily Max (CFU/gallon) TN Annual Geomean (mg/L) TN Monthly Max (mg/L) TP Annual Geomean (mg/L) TP Monthly Max (mg/L) Turbidity Max. (NTU) Jan-18 37 244 1400.6 9236.4 15.7 12.30 2.5 2.2 3.4 Feb-18 124 400 4693.9 15141.6 15.4 14.50 2.6 2.6 4.6 Mar-18 290 1,600 10977.7 60566.6 15.5 15.90 2.6 3.0 7.4 Apr-18 445 5,500 16845.1 208197.6 15.1 12.60 2.5 2.1 3.5 May-18 665 11,100 25173.0 420180.5 14.7 13.30 2.5 2.4 4.1 Jun-18 268 3,900 10144.9 147631.0 14.6 15.50 2.4 2.3 4.5 Jul-18 568 2,100 21501.1 79493.6 14.4 13.80 2.5 2.7 3.3 Aug-18 380 5,900 14384.6 223339.2 14.3 13.70 2.5 2.5 3.8 Sep-18 159 2,500 6018.8 94635.3 14.0 13.30 2.5 2.2 6.6 Oct-18 363 1,800 13741.0 68137.4 14.2 15.80 2.4 2.5 3.4 Nov-18 291 2,500 11015.5 94635.3 13.9 13.10 2.4 2.4 3.7 Dec-18 624 2,400 23621.0 90849.8 14.2 17.00 2.5 2.7 3.9 Jan-19 1,444 4,100 54661.3 155201.8 14.2 17.80 2.5 2.7 2.8 Feb-19 298 4,800 11280.5 181699.7 14.9 18.50 2.5 3.2 4.3 Mar-19 388 3,000 14687.4 113562.3 14.9 15.70 2.5 2.2 4.2 Apr-19 883 6,000 33425.2 227124.6 15.0 16.50 2.6 3.1 3.1 May-19 296 7,700 11204.8 291476.6 15.2 15.00 2.6 2.7 3.6 Jun-19 760 3,200 28769.1 121133.1 15.4 15.36 2.7 3.1 3.6 Jul-19 538 1,900 20365.5 71922.8 15.2 14.32 2.7 3.1 3.0 Aug-19 582 1,800 22031.1 68137.4 15.0 12.08 2.7 2.6 1.9 Sep-19 1,065 9,000 40314.6 340686.9 15.0 14.06 2.7 2.4 4.6 Oct-19 164 638 6208.1 24150.9 15.0 12.63 2.7 2.7 33.0 Nov-19 522 2,100 19759.8 79493.6 15.1 17.10 2.8 3.4 4.4 Dec-19 202 1,250 7646.5 47317.6 14.9 11.74 2.7 1.7 3.6 Jan-20 358 3,800 13551.8 143845.6 14.7 13.86 2.7 2.3 6.6 Feb-20 539 6,000 20403.4 227124.6 14.6 16.31 2.7 2.8 7.7 Mar-20 37 100 1400.6 3785.4 13.8 9.70 2.7 2.5 5.8 Apr-20 371 2,700 14043.9 102206.1 14.0 18.94 2.6 2.0 3.2 May-20 400 1,370 15141.6 51860.1 Jun-20 347 3,600 13135.4 136274.8 Jul-20 629 3,200 23810.2 121133.1 Aug-20 243 867 9198.5 32819.5 Sep-20 215 784 8138.6 29677.6 Oct-20 244 750 9236.4 28390.6 Nov-20 92 200 3482.6 7570.8 Dec-20 298 1,800 11280.5 68137.4 Jan-21 675 1,900 25551.5 71922.8 Feb-21 657 3,600 24870.1 136274.8 Mar-21 146 375 5526.7 14195.3 Apr-21 146 363 5526.7 13741.0 May-21 321 7,300 12151.2 276334.9 Jun-21 832 4,000 31494.6 151416.4 Jul-21 616 5,600 23318.1 211983.0 Aug-21 228 426 8630.7 16125.8 Sep-21 166 349 6283.8 13211.1 Oct-21 438 39,000 16580.1 1476309.9 Nov-21 582 4,200 22031.1 158987.2 Dec-21 404 7,400 15293.1 280120.3 Jan-22 680 4,200 25740.8 158987.2 Feb-22 519 709 19646.3 26838.6 Mar-22 371 1,055 14043.9 39936.1 Apr-22 397 833 15028.1 31532.5 May-22 199 355 7533.0 13438.2 Jun-22 192 329 7268.0 12454.0 Jul-22 308 3,200 11659.1 121133.1 Aug-22 263 329 9955.6 12454.0 Sep-22 159 362 6018.8 13703.2 Oct-22 194 387 7343.7 14649.5 Nov-22 315 1,200 11924.0 45424.9 Dec-22 124 20,200 4693.9 764652.8 Jan-23 39 123 1476.3 4656.1 Feb-23 67 123 2536.2 4656.1 Mar-23 53 117 2006.3 4428.9 Apr-23 152 317 5753.8 11999.7 May-23 177 265 6700.2 10031.3 Jun-23 96 155 3634.0 5867.4 Jul-23 116 162 4391.1 6132.4 Aug-23 164 219 6208.1 8290.0 Sep-23 145 3,000 5488.8 113562.3 Oct-23 89 194 3369.0 7343.7 Nov-23 110 304 4164.0 11507.6 Dec-23 17 104 643.5 3936.8 Jan-24 54 105 2044.1 3974.7 Feb-24 155 362 5867.4 13703.2 Mar-24 154 553 5829.5 20933.3 Apr-24 136 362 5148.2 13703.2 May-24 133 448 5034.6 16958.6 Jun-24 257 20,600 9728.5 779794.5 Jul-24 115 148 4353.2 5602.4 Aug-24 60 125 2271.2 4731.8 Sep-24 71 112 2687.6 4239.7 Oct-24 226 1,600 8555.0 60566.6 Nov-24 123 1,000 4656.1 37854.1 Dec-24 44 89 1665.6 3369.0 Jan-25 80 220 3028.3 8327.9 Feb-25 183 2,200 6927.3 83279.0 Mar-25 146 166 5526.7 6283.8 Apr-25 253 2,400 9577.1 90849.8 May-25 102 164 3861.1 6208.1 Jun-25 128 161 4845.3 6094.5 Jul-25 182 3.15 6889.4 119.2 Aug-25 195 253 7381.5 9577.1